Tennant 285 Operator'S Manual Download Page 57

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OPERATION

2-35

285 MM191 (12---89)

MACHINE TROUBLESHOOTING -- SWEEPING

Problem

Cause

Remedy

Excessive dusting

Dust skirts and seals worn,

Replace or adjust skirts or

damaged, not adjusted properly

seals

Dust filter clogged

Shake and/or clean or replace

filter

Engine operating at

Operate engine at “normal”

“litter” speed

speed

Vacuum wand door closed

Open vacuum wand door

Vacuum hose damaged

Replace vacuum hose

Vacuum fan failure

See

HYDRAULIC SYSTEM

TROUBLESHOOTING: Poor or no

vacuum to brush compartment

Poor sweeping performance

Brush bristles worn

Replace brushes

Brushes not adjusted properly

Adjust brushes

Debris caught in brush drive

Free mechanism of debris

mechanism
Main brush drive failure

See

HYDRAULIC SYSTEM

TROUBLESHOOTING: Main brush

turns slowly or not at all

Side brush drive failure

See

HYDRAULIC SYSTEM

TROUBLESHOOTING: Side brush

turns slowly or not at all

Hopper not adjusted properly

Adjust hopper floor clearance

Hopper full

Empty hopper

Hopper floor skirts worn, damaged

Replace skirts

NOTE: For more specific electro---hydraulic system troubleshooting information, see HYDRAULIC SYSTEM

TROUBLESHOOTING in the MAINTENANCE section.

Summary of Contents for 285

Page 1: ...r 285 Sweeper Scrubber ...

Page 2: ...he machine is operated with reasonable care D The machine is maintained regularly per the maintenance instructions provided D The machine is maintained with Tennant Company supplied or equivalent parts Parts and supplies may be ordered by phone or mail from any Tennant Company parts and service center distributor or from any of the Tennant Company subsidiaries Before ordering parts or supplies be ...

Page 3: ... of the machine This section gives you specification information on the engine electric motors brake system hydraulics fluid capacities and machine weight to mention a few The section also has a illustration of the top and side view of the machine with the height and width dimensions displayed OPERATION The Operation section of the manual contains information needed to operate the machine This sec...

Page 4: ... used on all machines such as 000000 If the column lists zeros on the left of the dash and a number on the right of the dash then the part is used on machines up to and including that machine serial number such as 00000 002345 For parts that are used on machines beginning at and continuing on from a certain serial number the column would list a serial number on the left of the dash and have blank ...

Page 5: ...supplier and TENNANT parts numbers for repair parts Breakdowns for hydraulic and electrical components have TENNANT part numbers for the parts TENNANT supplies The serial numbers listed in any of the parts lists in these sections is a serial number the manufacturer uses to identify design changes in their particular component ORDERING REPAIR PARTS Once you have located a part to order there are se...

Page 6: ...ABOUT THIS MANUAL 285 MM191 12 89 d ...

Page 7: ... machine Do not carry riders on machine Always follow safety and traffic rules 5 Before leaving or servicing machine Stop on level surface Set parking brake Turn off machine and remove key 6 When servicing machine Avoid moving parts Do not wear loose jackets shirts or sleeves when working on machine Use Tennant Company supplied or equivalent replacement parts WARNING Machine emits toxic gases Seve...

Page 8: ...ttachment installation and removal to avoid personal injury WARNING Machine is unstable on jack Jack machine up at designated locations only Block machine up with jack stands WARNING Machine is unstable on jack Block machine tires before jacking machine up WARNING Leaking hydraulic fluid under pressure can penetrate skin Severe infection or death can result Do not use body to locate leak Use cardb...

Page 9: ...ese or any labels become damaged or illegible install a new label in its place 04621 ENGINE FAN LABEL LOCATED ON ENGINE FAN SHROUD BUMPER CHAIN LABEL LOCATED ON UNDERSIDE OF BUMPER LOW DUMP MODEL ONLY NOISE LABEL LOCATED ON FRONT RIGHT OF OPERATOR COMPARTMENT HEAVY BUMPER LABEL LOCATED ON UNDERSIDE OF BUMPER LOW DUMP MODEL ONLY ...

Page 10: ...ER LIFT ARMS MULTI LEVEL DUMP MODEL ONLY SHOCK LABEL LOCATED ON FRONT RIGHT OF OPERATOR COMPARTMENT HOPPER SUPPORT BAR LABEL LOCATED ON HOPPER SUPPORT BAR FOR SAFETY LABEL LOCATED ON LEFT SIDE OF OPERATOR COMPARTMENT EMISIONS LABEL LOCATED ON LEFT SIDE OF OPERATOR COMPARTMENT CONTENTS ...

Page 11: ...TURE INDICATOR 2 11 ENGINE COOLANT TEMPERATURE INDICATOR 2 11 Page ENGINE OIL PRESSURE INDICATOR 2 12 FUEL LEVEL GAUGE 2 12 CLOGGED FILTER INDICATOR 2 12 FILTER SHAKER SWITCH 2 12 MAIN BRUSH AND VACUUM FAN SWITCH 2 12 ENGINE HOUR METER 2 12 IGNITION AND START SWITCHES 2 12 SIDE BRUSH POSITION LEVER 2 12 HOPPER SUPPORT BAR 2 12 TO ENGAGE HOPPER SUPPORT BAR 2 13 TO DISENGAGE HOPPER SUPPORT BAR 2 13 ...

Page 12: ...EL 3 15 HYDRAULIC SYSTEM TROUBLESHOOTING 3 16 HYDRAULIC COMPONENTS TROUBLESHOOTING 3 18 Page ENGINE 3 19 ENGINE LUBRICATION 3 19 GASOLINE AND LPG ENGINES 3 19 DIESEL ENGINES 3 19 COOLING SYSTEM 3 19 AIR INTAKE SYSTEM 3 20 AIR FILTER RESTRICTION INDICATOR 3 21 AIR FILTER 3 21 TO REPLACE AIR FILTER ELEMENT 3 22 FUEL SYSTEM GASOLINE 3 23 FUEL FILTER 3 23 FUEL SYSTEM LPG 3 24 LPG FUEL SYSTEM 3 24 FUEL...

Page 13: ...TO REPLACE SIDE BRUSH 3 53 SKIRTS AND SEALS 3 54 HOPPER LIP SKIRTS 3 54 TO REPLACE HOPPER LIP SKIRTS 3 54 BRUSH DOOR SKIRTS 3 55 TO REPLACE AND ADJUST BRUSH DOOR SKIRTS 3 55 Page REAR SKIRTS 3 56 TO REPLACE AND ADJUST THE REAR SKIRTS 3 56 MAIN BRUSH DOOR SEALS 3 57 HOPPER SEALS 3 57 HOPPER INSPECTION DOOR SEAL 3 57 HOPPER DOOR SEALS 3 58 HOPPER COVER SEAL 3 58 HOPPER VACUUM FAN SEAL 3 58 BRAKES AN...

Page 14: ...ig 1 Engine Group Diesel 6 4 Fig 2 Fuel Tank Group Diesel 6 6 Fig 3 Radiator and Shroud Group Diesel 6 8 Fig 4 Throttle Linkage Group Diesel 6 9 Fig 5 Muffler Group Diesel 6 10 Fig 6 Directional Control Group Diesel 6 11 Page Fig 7 Instruction Panel Group Diesel 6 12 Fig 8 Wire Harness Group Diesel 6 13 Fig 9 Foam Insulation Group Diesel 6 14 Fig 10 Air Cleaner Group Diesel 6 15 MULTI LEVEL DUMP M...

Page 15: ...c Motor Breakdown 27787 9 14 Fig 11 Hydraulic Valve Breakdown 62550 9 15 Page Fig 12 Hydraulic Valve Breakdown 34319 9 16 Fig 13 Hydraulic Solenoid Valve Breakdown 82754 9 17 Fig 14 Hydraulic Cylinder Breakdown 04468 9 18 Fig 15 Hydraulic Cylinder Breakdown 82757 9 19 Fig 16 Hydraulic Cylinder Breakdown 04471 9 20 ENGINE PARTS GASOLINE LPG 10 1 ORDERING REPAIR PARTS 10 3 Fig 1 Cylinder Head Group ...

Page 16: ...p 12 26 Fig 17 Thermostat Group 12 27 Fig 18 Water Pump Group 12 28 Fig 19 Starter Breakdown 12 29 CROSS REFERENCE 13 1 PART NUMBER TO PAGE NUMBER CROSS REFERENCE LIST 13 3 CUSTOMER DOCUMENTS 14 1 TENNANT COMPANY LIMITED WARRANTY 14 3 TENNANT COMPANY TENNANT COMPANY SUBSIDIARIES AND MAJOR PARTS AND SERVICE LOCATIONS DIRECTORY 14 5 ...

Page 17: ...SPECIFICATIONS 1 3 POWER TYPE 1 3 POWER TRAIN 1 3 STEERING 1 3 HYDRAULIC SYSTEM 1 3 BRAKING SYSTEM 1 4 SUSPENSION SYSTEM 1 4 SYSTEM FLUID CAPACITIES 1 4 GENERAL MACHINE DIMENSIONS CAPACITIES 1 4 MACHINE WEIGHTS 1 4 GENERAL MACHINE PERFORMANCE 1 4 MACHINE DIMENSIONS 1 5 ...

Page 18: ...SPECIFICATIONS 285 MM191 12 89 1 2 ...

Page 19: ...nter type single spool Control valve multi level dump model side brush drive hopper lift hopper dump open center type two spool Control valve vacuum fan drive main brush drive open center type single spool solenoid operated Pump propelling variable displacement piston type 1 24 cu in 20 cc maximum displacement per revolution 11 8 gpm 45 L min 2200 rpm 14 2 gpm 54 L min 2650 rpm Propelling system r...

Page 20: ... dump model 98 in 2490 mm Width low dump model 56 in 1420 mm Width multi level dump model 59 in 1500 mm Height 52 in 1320 mm Height with overhead guard 79 in 2005 mm Height with overhead guard and hazard lamp 85 in 2160 mm Height with cab 77 in 1955 mm Height with cab and hazard lamp 83 in 2110 mm Track 46 in 1170 mm Wheelbase 38 in 965 mm Main brush diameter 14 in 355 mm Main brush length 42 in 1...

Page 21: ...ECIFICATIONS 1 5 285 MM191 12 89 MACHINE DIMENSIONS 96 in 2440 mm 56 in 1420 mm Low Dump Model 59 in 1500 mm Multi Level Dump 52 in 1320 mm 98 in 2490 mm Multi Level Dump Model Low Dump Model Model 02452 ...

Page 22: ...SPECIFICATIONS 285 MM191 12 89 1 6 ...

Page 23: ...13 TO DISENGAGE HOPPER SUPPORT BAR 2 13 SCRUB BRUSH POSITION LEVER 2 14 SOLUTION FLOW KNOB 2 14 CIRCUIT BREAKERS AND RELAYS 2 14 Page MACHINE OPERATION 2 15 NORMAL SWEEPING OPERATION 2 15 PRE START CHECKLIST 2 15 TO START MACHINE 2 15 TO SWEEP 2 16 TO DUMP HOPPER 2 17 POST OPERATION CHECKLIST ENGINE OPERATING 2 17 TO STOP MACHINE 2 17 POST OPERATION CHECKLIST ENGINE STOPPED 2 17 NORMAL SCRUBBING O...

Page 24: ...OPERATION 2 2 285 MM191 12 89 ...

Page 25: ... use only new approved hydraulic fluid See Hydraulics in the Maintenance section 4 Check the engine oil level 5 Check the radiator coolant level WARNING Hot engine coolant Scalding can result Do not open radiator cap or service cooling system until radiator and engine is cool to the touch 6 Check the main brush adjustment as described in Brushes in the Maintenance section 7 Check the air pressure ...

Page 26: ... 04621 MACHINE COMPONENTS MULTI LEVEL DUMP MODEL SHOWN A Hazard Light H Hopper Support Bar B Overhead Guard I Main Brush Access Door C Steering Wheel J Operator Seat D Engine Cover K Scrub Attachment E Hopper Cover L Front Access Door F Hopper Door M Solution Tank Covers G Side Brush ...

Page 27: ...l Off Idle Fast 1 Fast 2 Hopper Roll Out Hopper Roll In Out Hold Hopper Roll In Side Brush On Hopper Up Hopper Down Hopper Hold Headlights Hazard Light Main Brush Free Float Main Brush Down Main Brush Up Engine Oil Pressure Engine Water Temperature Hydraulic Fluid Temperature Battery Alternator Charging System Hopper Temperature Thermo Sentryt Engine Shutdown Fuel Level ...

Page 28: ...L SYMBOLS cont Filter Shaker Filter Clogged Main Brush On Hourmeter Engine Start Key Switch Side Brush Down Side Brush Up Circuit Breaker 1 Circuit Breaker 2 Circuit Breaker 3 Circuit Breaker 4 Circuit Breaker 5 Circuit Breaker 6 Circuit Breaker 7 ...

Page 29: ...tional Pedal N Hopper Lift and Side Brush Lever C Parking Brake Lever O Main Brush Position Lever D Operator Seat P Steering Wheel E Squeegee Switch Q Instrument Panel F Water Valve Switch R Horn Button G Throttle Lever S Side Brush Position Lever H Hazard Light Switch T Hopper Support Bar I Engine Choke Knob U Scrub Brush Position Lever J Drive Lights Switch V Solution Flow Knob K Diesel Preheat ...

Page 30: ...rd adjustment The operator seat also tilts forward to allow access to the fuel tank The weight lever has three positions One for light operators one for medium weight operators and one for heavy operators Pull the lever up for light operators position the lever horizontally for medium operators and down for heavy operators The backrest angle is adjusted by turning the knob Turn the knob clockwise ...

Page 31: ...e the switch in the bottom position ENGINE CHOKE KNOB The engine choke knob controls the engine choke on gasoline powered machines To close the choke for cold starting pull the choke knob out To open the choke push the knob in DRIVE LIGHTS SWITCH The drive lights switch is present on machines with the operating lights accessory The switch controls the headlights taillights and side brush spot ligh...

Page 32: ...ill extend main brush life The free float position is used when sweeping extremely uneven areas The free float position allows the main brush to follow the uneven surfaces more closely To lower the main brush for normal sweeping conditions pull the lever back and to the left into the Main Brush Down position To lower the main brush for sweeping extremely uneven surfaces pull the lever back and to ...

Page 33: ... the voltage exceeds 14 volts it may be overcharging Undercharging and overcharging are indications that one or more electrical components are in need of repair HYDRAULIC FLUID TEMPERATURE INDICATOR The hydraulic fluid temperature indicator glows when the temperature of the hydraulic fluid in the reservoir exceeds 225_ F 107_ C When the indicator glows an audio alarm will sound for 30 seconds and ...

Page 34: ... only when the machine is equipped with the snow broom accessory To start main brush rotation and vacuum fan suction press the switch To stop main brush rotation and vacuum fan suction press the switch again ENGINE HOUR METER The engine hour meter records the number of hours the machine has been operated This information is useful in determining when to service the machine IGNITION AND START SWITC...

Page 35: ...ER SUPPORT BAR LOW DUMP MODEL A Lift Arm Pin B Support Bar A B 02467 ENGAGED HOPPER SUPPORT BAR MUL TI LEVEL DUMP MODEL A Lift Arm Cam B Support Bar 4 Slowly lower the hopper so the lift arm pin or cam rests on the support bar 5 Turn the engine off 6 Check the support bar to make sure it is securely engaged TO DISENGAGE HOPPER SUPPORT BAR 1 Start the engine 2 Raise the hopper to the fully raised p...

Page 36: ...l of the way in will stop solution flow CIRCUIT BREAKERS AND RELAYS Circuit breakers are resetable circuit protection devices designed to stop the flow of current in the event of a circuit overload Once tripped circuit breakers must be allowed to cool and then manually reset If the overload which caused the circuit breaker to trip is still present in the circuit the circuit breaker will continue t...

Page 37: ...NE NOTE Before starting machine perform the pre start checks 1 LPG powered machines Slowly open the liquid service valve NOTE Opening the service valve too quickly may cause the service valve check valve to stop the flow of LPG fuel If the check valve stops the flow of fuel close the valve wait a few seconds and slowly open the valve once again Diesel powered machines Push the diesel preheat pushb...

Page 38: ...teering wheel too sharply when the machine is in motion The machine is very responsive to the movement of the steering wheel Avoid sudden turns except in emergencies Sweep as straight a path as possible Avoid bumping into posts or scraping the sides of the sweeper Speed up the engine from Fast 1 to Fast 2 when light litter is to be picked up This will improve both litter pickup and hopper loading ...

Page 39: ... Multi level dump model machines Pull the hopper dump lever into the Hopper Roll In position to return the hopper to its normal angle then release the lever 7 Push the hopper lift and side brush lever into the Hopper Down position to return the hopper to its operating position 8 Slowly back the machine away from the dump site or dumpster POST OPERATION CHECKLIST ENGINE OPERATING Check brush patter...

Page 40: ...d machines Slowly open the liquid service valve NOTE Opening the service valve too quickly may cause the service valve check valve to stop the flow of LPG fuel If the check valve stops the flow of fuel close the valve wait a few seconds and slowly open the valve once again Diesel powered machines Push the diesel preheat pushbutton until the preheat indicator glows brightly 2 The machine operator m...

Page 41: ...addition to the solution put down by the machine For best scrubbing results reduce speed to one half maximum machine speed Shut off solution flow to floor 5 ft 1525 mm before making turns Adjust solution flow to floor with solution flow knob to match floor conditions Always raise the rear squeegee before backing machine 1 Stop the engine and set the parking brake before filling solution tanks FOR ...

Page 42: ...he parking brake FOR SAFETY Before leaving or servicing the machine stop on level surface set parking brake and turn off machine 7 Open the front access door 8 Remove the tank drain hose from its retention plug Lower the hose to the floor drain to drain the tank NOTE The tank will not empty with the vacuum fan operating A B C 02748 RECOVERY TANK DRAIN HOSE A Plug B Drain Hose C Access Door 9 Repla...

Page 43: ...e set parking brake and turn off machine 11 LPG powered machines Close the LPG tank liquid service valve POST OPERATION CHECKLIST ENGINE STOPPED Check skirts for damage wear and adjustment Check for wire or string tangled on brushes Drain and clean recovery tank Check vacuum hoses for debris or obstructions Check to make sure LPG tank service valve is closed Check for LPG odor indicating a fuel le...

Page 44: ...hopper inspection door 5 Low dump models Unlatch the vacuum door retainer Press the vacuum door arms down to close the vacuum door A B C D 02749 CLOSING VACUUM DOOR A Inspection Door B Vacuum Door C Door Arm D Retainer multi level dump models Push the vacuum door closed Press the vacuum door arms down to lock the door shut A B C D 02801 CLOSED VACUUM DOOR A Inspection Door B Vacuum Door C Door Arm...

Page 45: ...E HOPPER WITH DOLLY 1 Empty debris hopper 2 Stop the engine and set the machine parking brake FOR SAFETY Before leaving or servicing the machine stop on level surface set parking brake and turn off machine 3 Unlatch and remove the hopper cover 4 Disconnect all wires and vacuum hoses between the hopper and the machine 5 Reposition and latch the hopper cover on the hopper 6 Start the engine raise th...

Page 46: ...SCRUB ATTACHMENT The scrub attachment accessory gives the machine the added flexibility to scrub floors It consists of three groups of parts the scrub attachment the side scrub brush and squeegee and the rear squeegee The scrub attachment and side scrub brush and squeegee are to be removed when sweeping The rear squeegee may be left on the machine in the raised position The scrub attachment takes ...

Page 47: ...engine WARNING Falling hopper Engage hopper support bar before working under hopper 9 Pull the scrub attachment leg locking knobs out swing the legs up into the raised position and release the knobs A B 02754 SCRUB ATTACHMENT LEG A Locking Knob B Leg 10 Start the engine raise the scrub attachment place the hopper support bar in its storage location and lower the scrub attachment Stop the engine 11...

Page 48: ...achment to the quick disconnect station port the previous hose was connected to 16 Connect the small diameter hose from the scrub attachment to the quick disconnect fitting below the quick disconnect station A B C 02810 CONNECTED SCRUB ATTACHMENT HOSES A Quick Disconnect Station B Large Diameter Hose C Small Diameter Hose 17 Slide the side brush squeegee assembly into position in the squeegee brac...

Page 49: ...p hose The hole should be on the side of the hose next to the squeegee nozzle The hole should be free of debris or obstructions TO REMOVE SCRUB ATTACHMENT 1 Drain the scrub attachment solution and recovery tanks WARNING The solution and recovery tanks must be empty during scrub attachment installation and removal to avoid personal injury 2 Drive the machine to the scrub attachment storage area 3 D...

Page 50: ...scrub attachment and engage the hopper support bar Stop the engine WARNING Falling hopper Engage hopper support bar before working under hopper 11 Pull the scrub attachment leg locking knobs out swing the legs down into the down position and release the knobs 12 Start the engine raise the scrub attachment place the hopper support bar in its storage location and lower the scrub attachment Stop the ...

Page 51: ...mper if present and the side brush arm 3 Position the blade mounting frame lift pins in the lift arm slots Push the lift arm hooks over the pins A B C D 02759 LIFT ARM HOOK A Pin B Hook C Mounting Frame D Limiting Chain 4 Position the upper ends of the mounting frame over the cams A B 02760 SECURE MOUNTING FRAME UPPER END A Upper End B Cam 5 Secure each upper end of the mounting frame to the cam w...

Page 52: ...or pin is designed to be a shear pin If the plow strikes a solid immovable object the pin will shear allowing the blade to swing away from the object before the equipment is damaged The blade assembly is mounted on the lift arms of the machine which are free to float upward if necessary Under some conditions snow can be pushed to unused areas and stacked to a considerable height To do this place t...

Page 53: ... the snow blade assembly SNOW BROOM The snow broom accessory gives the machine the added flexibility to remove snow from walks and driveways It consists of two groups of parts the mounting frame and the broom frame and drive assembly The mounting frame is used to mount either the snow blade or snow broom assembly on the machine The broom frame and drive assembly may be positioned so as to sweep sn...

Page 54: ...hole in the mounting frame 8 Connect the snow broom frame to either the right or left side of the mounting frame with a clevis pin depending upon which direction the snow should be swept 9 Connect the tension chain between the top of the upright arm and the peg on the support arm The tension chain helps raise or lower the snow broom A B C D E F G H 02762 SNOW BROOM INSTALLATION A Tension Chain and...

Page 55: ...rate the snow broom The main brush and vacuum fan will not operate The hydraulic fluid normally used to drive them is being diverted to the snow broom Begin sweeping early and often Do not allow snow to accumulate or to become packed and frozen The snow broom becomes ineffective in snow deeper than 4 in 100 mm Slow down in deep snow Snow is thrown at an angle The deeper the snow the steeper the an...

Page 56: ...connect the hose from the machine to the operator side port of the quick disconnect station to reengage the main brush motor A B 02755 RECONNECTED HOSE A Operator Side Port B Hydraulic Hose 6 Disconnect the two limiting chains from the machine frame A B C 02759 LIMITING CHAIN A Pin B Hook C Limiting Chain 7 Remove the upper ends of the mounting frame from the lift arm cams 8 Tilt the lift arm hook...

Page 57: ...vacuum to brush compartment Poor sweeping performance Brush bristles worn Replace brushes Brushes not adjusted properly Adjust brushes Debris caught in brush drive Free mechanism of debris mechanism Main brush drive failure See HYDRAULIC SYSTEM TROUBLESHOOTING Main brush turns slowly or not at all Side brush drive failure See HYDRAULIC SYSTEM TROUBLESHOOTING Side brush turns slowly or not at all H...

Page 58: ...lace hose damaged Little or no solution flow Solution tank empty Fill solution tank to floor Water valve cable broken or Replace and or adjust cable out of adjustment Solution supply lines and Flush solution supply lines spreader tube clogged spreader tube Water valve switch in off position Move switch to on position Water valve solenoid failure Clean or replace solenoid valve Solution flow knob i...

Page 59: ...es before jacking the machine up The front jacking locations are on the flat bottom edge of the machine frame next to the front tires The rear jacking location is the middle flat bottom edge of the rear bumper TO JACK UP MACHINE 1 Empty the debris hopper 2 Stop the engine and set the machine parking brake FOR SAFETY Before leaving or servicing the machine stop on level surface set parking brake an...

Page 60: ...8 Service the machine as required 9 When finished servicing the machine raise the machine off the jack stands 10 Remove the jack stands from under the machine 11 Lower the machine 12 Remove the blocks from the tires MACHINE TIE DOWNS The machine may be tied down at each of the corners of the main frame using tie down brackets supplied in the tie down kit When transporting the machine on a trailer ...

Page 61: ...high tension coil wire and spark plugs 5 Drain the gasoline from the carburetor bowl by removing the carburetor anti diesel solenoid 6 Replace the carburetor drain plug 7B Gasoline and LPG powered machines To store the machine 90 days to 6 months 1 Remove the spark plugs 2 Pour 3 oz 90 cc of clean engine oil into each spark plug hole 3 Remove the ignition coil high tension wire Operate the engine ...

Page 62: ...OPERATION 2 40 285 MM191 NIL ...

Page 63: ...AIR FILTER 3 21 TO REPLACE AIR FILTER ELEMENT 3 22 FUEL SYSTEM GASOLINE 3 23 FUEL FILTER 3 23 CARBURETOR 3 23 Page FUEL SYSTEM LPG 3 24 LPG FUEL SYSTEM 3 24 FUEL TANKS 3 25 TO CHANGE AN LPG FUEL TANK 3 26 FUEL FILTER LOCK 3 26 VAPORIZER REGULATOR 3 26 CARBURETOR 3 26 OIL PRESSURE SWITCH 3 26 LPG FUEL TROUBLESHOOTING 3 27 FUEL SYSTEM DIESEL 3 28 DIESEL FUEL SYSTEM 3 28 FUEL WATER TRAP FILTER 3 28 T...

Page 64: ...AIN BRUSH 3 50 TO REPLACE MAIN BRUSH 3 50 TO CHECK AND ADJUST MAIN BRUSH PATTERN 3 51 SIDE BRUSH 3 52 TO REPLACE SIDE BRUSH 3 53 SKIRTS AND SEALS 3 54 HOPPER LIP SKIRTS 3 54 TO REPLACE HOPPER LIP SKIRTS 3 54 BRUSH DOOR SKIRTS 3 55 TO REPLACE AND ADJUST BRUSH DOOR SKIRTS 3 55 Page REAR SKIRTS 3 56 TO REPLACE AND ADJUST THE REAR SKIRTS 3 56 MAIN BRUSH DOOR SEALS 3 57 HOPPER SEALS 3 57 HOPPER INSPECT...

Page 65: ...tern for correct brush adjustment 2 Gasoline and LPG powered machines below serial number 010750 Check engine ignition timing 3 Gasoline and LPG powered machines below serial number 010750 Torque the cylinder head bolts to the proper specification 4 Torque the rear wheel nuts 5 Perform all 50 hour interval lubrication and maintenance procedures listed in the Maintenance Chart ...

Page 66: ...adjustment 5 Main brush Check for damage wear and 1 adjustment 4 Side brush Check for damage wear and 1 adjustment 21 Fuel water trap filter Drain water 1 diesel Scrub attachment Check squeegee for damage 1 wear and adjustment Check scrub brush for damage 1 wear and adjustment 50 Hours 18 Engine crankcase Change oil and filter element EO 1 5 Main brush Rotate end for end 1 100 Hours 22 Hopper dust...

Page 67: ... and adjust valve 8 For machines serial clearance number 010750 Check and adjust idle speed 1 and above Check and adjust carburetor 1 idle mixture Clean or replace and adjust 4 spark plugs Replace PCV valve Clean PCV hoses tubes and fittings 2 Front wheel bearings Inspect and lubricate MPGP 2 9 Hydraulic fluid reservoir Change hydraulic fluid HYDO 1 17 Hydraulic fluid filter Change filter element ...

Page 68: ... OILS Below 32_F 32_ to 77_ F Above 77_ F Below 0_C 0_ to 25_ C Above 25_ C 10W 20 30 10W 30 The engine oil capacity is 7 qt 6 7 L including the oil filter STEERING GEAR The steering gear controls the steering arm A square head plug has been provided on the left side of the steering gear to check the grease level and to allow filling Check the steering grease level after every 400 hours of operati...

Page 69: ...t lithium base moly disulphide EP grease or a paraffin base grease with organic thickener A B C 02478 LEFT SIDE HOPPER LIFT BEARING A Left Side Access Door B Grease Fitting C Lift Bearing HOPPER DOOR LATCHES The hopper door latches latch the hopper door on multi level dump model machines Two grease fittings are used to lubricate the hopper door latches One grease fitting is on each of the latches ...

Page 70: ...se or a paraffin base grease with organic thickener A B 02754 LEG CASTER A Leg B Grease Fitting SCRUB ATTACHMENT DEBRIS HOPPER The scrub attachment debris hopper collects debris picked up by the scrub brushes The debris hopper pivots on two bearings Each bearing is equipped with a grease fitting Lubricate the bearings with a grease gun after every 200 hours of operation Use a multi purpose water r...

Page 71: ...he HP2060 rated hydraulic fluid in areas which have ambient temperatures above 90_ F 32_ C ATTENTION If a locally available hydraulic fluid is preferred or if products of only one oil company are used the hydraulic fluid used must match closely the viscosity specifications given in the chart for TENNANTr Hydraulic Fluid as well as the other features described Do not substitute automatic transmissi...

Page 72: ... the reservoir to filter hydraulic fluid before it enters the system Replace the strainer after every 800 hours of operation TO DRAIN HYDRAULIC FLUID RESERVOIR AND REPLACE FILTER ELEMENT 1 Stop the engine and set the machine parking brake FOR SAFETY Before leaving or servicing machine stop on level surface set parking brake and turn off machine 2 Allow the hydraulic fluid to cool 3 Unthread and di...

Page 73: ...achine propelling pump is a variable displacement hydraulic piston pump It is driven by the engine via a chain coupling The machine accessories pump is a hydraulic gear pump It is tandem mounted to the hydraulic piston pump After repairing or replacing a hydraulic pump or when system contamination is likely change the hydraulic fluid in the reservoir and the hydraulic fluid filter DIRECTIONAL PEDA...

Page 74: ...ease it The rear wheel should stop rotating as soon as the pedal is released Stop the engine and adjust the spring bracket as required 7 Move the directional pedal into the reverse position and release it The rear wheel should stop rotating as soon as the pedal is released Stop the engine and adjust the spring bracket as required 8 Tighten the jam nuts 9 Adjust the directional pedal linkage so it ...

Page 75: ...st the maximum limited speed loosen the roller bearing nut reposition the roller bearing in its mounting slot and tighten the nut A B C D 02483 SPEED LIMITER BEARING A Speed Limiter Bearing B Retaining Nut C Pump Linkage D Lift Arm Cam HYDRAULIC FLUID LEAKS Fluid escaping at high pressure from a very small hole can be almost invisible and can cause serious injuries Use a piece of cardboard or wood...

Page 76: ...MAINTENANCE 285 MM191 12 89 3 14 04644 HYDRAULIC SCHEMATIC LOW DUMP MODEL ...

Page 77: ...MAINTENANCE 3 15 285 MM191 12 89 04645 HYDRAULIC SCHEMATIC MULTI LEVEL DUMP MODEL ...

Page 78: ...ff switch S 4 failure Replace switch Hydraulic valve failure See HYDRAULIC COMPONENTS TROUBLESHOOTING Solenoid valve failure Hydraulic motor failure See HYDRAULIC COMPONENTS TROUBLESHOOTING Hydraulic motor failure Gear pump failure See HYDRAULIC COMPONENTS TROUBLESHOOTING Hydraulic gear pump Electric lift arm switch S 9 failure Adjust or replace switch Thermo Sentryt tripped Reset or replace Therm...

Page 79: ...S failure TROUBLESHOOTING Hydraulic control valve failure Hydraulic orifice at lift Replace orifice cylinder plugged Lift cylinder failure See HYDRAULIC COMPONENTS TROUBLESHOOTING Hydraulic cylinder failure Hopper overloaded Empty hopper Lift arms binding Replace and or adjust lift arm linkage Gear pump failure See HYDRAULIC COMPONENTS TROUBLESHOOTING Hydraulic gear pump Hopper will not lower Lift...

Page 80: ...ing valve cartridge Hydraulic motor failure Motor leaking Install seal kit Drive link failure Replace drive link Gerotor worn Replace gerotor set Output shaft failure Replace output shaft and bearings Hydraulic gear pump Pump leaking Install seal kit failure Gear set failure Replace gear set Shaft failure Replace gear set Flow divider failure Replace back plate assembly Engine to pump coupling Rep...

Page 81: ...r the engine must be kept from overheating in order to prevent damage to the valves pistons and bearings Check the radiator coolant level after every 100 hours of operation Fill the cooling system through the coolant overflow tank not through the radiator Use soft clean water mixed with permanent type ethylene glycol antifreeze in a one to one ratio to fill the cooling system Deposits of sludge sc...

Page 82: ... Hot engine coolant Scalding can result Do not open radiator cap or service cooling system until radiator and engine is cool to the touch ATTENTION Never pour cold water or cold antifreeze into the radiator of an overheated engine Allow the engine to cool to avoid cracking the cylinder head or block Keep the engine running while adding water AIR INTAKE SYSTEM The importance of maintaining an air f...

Page 83: ...ator by pushing the reset button on the end of the indicator A B C 02172 AIR FILTER RESTRICTION INDICATOR A Restriction Indicator B Indicator Window C Indicator Reset Button AIR FILTER The engine air filter housing includes a dust cap and two dry cartridge type air filter elements The dust cap must be emptied of dirt daily The air filter element must be cleaned and inspected or replaced whenever t...

Page 84: ... filter housing 11 Clean and inspect the seals on the ends of the element They should be unbroken and flexible Remember the safety element must be replaced after the regular element has been damaged or has been serviced three times 12 Install the safety element Make sure the element is seating evenly Tighten the wing nut 13 Using an air hose direct dry clean air maximum 30 psi 205 kPa up and down ...

Page 85: ... below the air filter Replace the filter element as required CARBURETOR The carburetor has two basic adjustments Those adjustments are idle fuel mixture and idle speed Check and adjust idle fuel mixture and idle speed after every 400 hours of operation The idle fuel mixture is controlled by a screw located on the front of the carburetor Turning the screw in clockwise leans the fuel mixture Turning...

Page 86: ...gulator section reduces the LPG fuel pressure to the level required by the carburetor From the vaporizer regulator the LPG fuel is sent to the carburetor where it is finally metered into the air flow which is sent to the engine combustion chamber A B C D E F G 03511 LPG FUEL SYSTEM A Carburetor B Vaporizer Regulator C Fuel Filter Lock D Pressure Relief Valve E Tank Service Valve F LPG Fuel Tank G ...

Page 87: ... designated safe area and the proper personnel should be notified Do not attempt to make repairs to the tank regardless of condition Repairs or disposal must only be made by qualified personnel The care an LPG fuel tank receives has a direct bearing on how long that tank can be used safely LPG fuel tanks must not be dropped or dragged across any surface To move LPG fuel tanks use a hand truck or r...

Page 88: ...he tank service coupling Make sure the service coupling is clean and free of damage Also make sure it matches the machine service coupling 13 Open the tank service valve slowly and check for leaks If an LPG leak is found close the service valve immediately and notify the appropriate personnel 14 If no leaks are found the engine is ready to start FUEL FILTER LOCK The fuel filter lock filters the LP...

Page 89: ... pressure switch failure Replace oil pressure switch Fuel lock valve failure Repair or replace fuel filter lock Vaporizer regulator failure Repair or replace vaporizer regulator Engine runs unevenly Wrong type of fuel Replace vapor withdrawal tank or lacks power tank vapor withdrawal tank with liquid withdrawal tank Plugged fuel filter Replace filter Kinked or restricted fuel line Straighten or re...

Page 90: ...in Tighten the drain knob when diesel fuel appears Replace the fuel filter element and clean the water trap after every 400 hours of operation TO REPLACE FUEL FILTER ELEMENT 1 Stop the engine and set the machine parking brake FOR SAFETY Before leaving or servicing machine stop on level surface set parking brake and turn off machine 2 Open the side and top engine access doors 3 Loosen the unit vent...

Page 91: ...e crankshaft sheave The governor is oil filled It requires no regular inspections Change the oil when performing major engine work Use an SAE rated 10W30 or 10W40 engine oil A B C D E F G H 02460 GOVERNOR A High Speed Stop Screw B Oil Fill Plug C Low Speed Stop Screw D Governor E Oil Level Plug F Surge Screw G Regulation Screw H Throttle Rod The governor is factory set and should not be adjusted u...

Page 92: ...LPG For machines serial number 010750 and above The electronic governor controls engine speed The governor consists of an ignition control assembly and control box located in front of the engine air cleaner and an actuator mounted on the engine The ignition control assembly and control box regulate the actuator which in turn controls the throttle The electronic governor is factory set and is not u...

Page 93: ...ter To check and adjust the ignition timing with a scope refer to the scope manufacturer s instructions To check and adjust the timing with a timing light proceed as follows TO CHECK AND ADJUST IGNITION TIMING For machines below serial number 010750 NOTE Dwell angle must be correct or timing will not be accurate 1 Stop the engine and set the machine parking brake FOR SAFETY Before leaving or servi...

Page 94: ... ft lb 10 to 15 Nm then to 30 to 37 ft lb 40 to 50 Nm then to 60 to 66 ft lb 80 to 90 Nm and then after ten to fifteen minutes torque to 74 to 81 ft lb 100 to 110 Nm Tighten the intake manifold bolts to 15 to 18 ft lb 20 to 24 Nm after every 800 hours of operation 1 2 3 4 5 6 7 8 9 10 03532 CYLINDER HEAD BOLT TIGHTENING SEQUENCE The cylinder head bolts must be retorqued after the engine is put int...

Page 95: ... a feeler gauge after aligning each cylinder on the compression top dead center stroke Adjust them with the engine cool to 0 0071 to 0 0087 in 0 18 to 0 22 mm in the firing order 1 2 3 CRANKCASE VENTILATION SYSTEM Clean the crankcase ventilation hoses tubes and fittings and replace the PCV valve after every 400 hours of operation TUNE UP CHART GASOLINE LPG Idle speed no load 950 50 rpm Fast 1 gove...

Page 96: ... the battery as they may cause a short circuit Replace worn or damaged wires The electrolyte level in regular nonsealed batteries can be checked It must always be above the battery plates Add distilled water to maintain solution at the correct level above the plates but do not overfill Never add acid to batteries only water Keep vent plugs firmly in place at all times except when adding water or t...

Page 97: ...MAINTENANCE 3 35 285 MM191 12 89 04647 ELECTRICAL SCHEMATIC GASOLINE LPG For machines below serial number 010750 ...

Page 98: ...MAINTENANCE 285 MM191 12 89 3 36 05791 ELECTRICAL SCHEMATIC GASOLINE LPG For machines serial number 010750 and above ...

Page 99: ...MAINTENANCE 3 37 285 MM191 12 89 05791 ELECTRICAL SCHEMATIC GASOLINE LPG For machines serial number 010750 and above ...

Page 100: ...MAINTENANCE 285 MM191 6 90 3 38 04643 ELECTRICAL SCHEMATIC DIESEL For machines below serial number 010750 ...

Page 101: ...MAINTENANCE 3 39 285 MM191 6 90 06208 ELECTRICAL SCHEMATIC DIESEL For machines serial number 010750 and above ...

Page 102: ...MAINTENANCE 285 MM191 6 90 3 40 06208 ELECTRICAL SCHEMATIC DIESEL For machines serial number 010750 and above ...

Page 103: ...MAINTENANCE 3 41 285 MM191 6 90 06187 ELECTRICAL SCHEMATIC AUTO SHAKER RFS ...

Page 104: ...MAINTENANCE 285 MM191 6 90 3 42 06187 ELECTRICAL SCHEMATIC AUTO SHAKER RFS ...

Page 105: ...0 The governor belt is driven by the crankshaft sheave and spans the fan drive sheave Check and adjust the belt tension after every 200 hours of operation To adjust belt tension loosen the belt idler mounting bolts Pull the idler away from the machine until the belt is snug then tighten the bolts Do not use a pry bar as it may damage the engine Proper belt tension is obtained when the belt deflect...

Page 106: ... the direction of the arrows This may be done with the dust filter in the machine Always wear eye protection when using compressed air WATER Soak the dust filter in a water and mild detergent solution Rinse the dust filter until it is clean The maximum water pressure allowable is 40 psi 275 kPa Air dry the wet dust filter do not use compressed air NOTE Be sure the dust filter is dry before reinsta...

Page 107: ...tments have been made at the factory and require no regular maintenance If the hopper components are repaired or replaced the hopper must be readjusted for best performance The hopper adjustments must be made in the order given Make all adjustments with the engine off and parking brake engaged If the adjustments are made with the hopper raised be sure to engage the hopper support bar TO ADJUST LOW...

Page 108: ...enter of each of the torque shafts to the floor with the hopper in the operating position A B 00593 TORQUE SHAFT HEIGHT A Torque Shaft B Measured Distance The distance measured should be 6 43 0 12 in 160 5 mm To adjust the height remove one or both of the splined lift arm cams and rotate it or them until the proper dimension is achieved The cams must rest on the sloping edge of the lintel A B C 02...

Page 109: ...er Lift Arm E Tighten the hexagon hopper cam bolts F Reconnect the dump cylinder clevises to the torque arms with the clevis pins removed earlier 4 DUMP CYLINDERS ADJUSTMENT A Start the engine and completely retract the dump cylinders B Stop the engine FOR SAFETY Before leaving or servicing machine stop on level surface set parking brake and turn off machine C Loosen the cylinder clevis jam nuts A...

Page 110: ...ction by adjusting latch stop bolt Do not position stop bolt too high or the door will close too tightly and damage the seal and latches A B C 02484 LATCH STOP BOLT A Lift Arm B Stop Bolt C Hopper E Shim the hopper door latching brackets to adjust the hopper door latch engagement and hopper door seal compression Do not compress the seal too much or the door will close too tightly and damage the se...

Page 111: ... C Threaded Rod D Stabilizer Leg D Thread the clevis onto the threaded rod to raise the stabilizer leg or thread the clevis off the threaded rod to lower the stabilizer leg E Tighten the jam nut against the clevis F Raise the hopper disengage the hopper bar and lower the hopper G Check the position of the stabilizer leg Readjust as required THERMO SENTRYt The Thermo Sentryt is a thermostat that se...

Page 112: ...TO REPLACE MAIN BRUSH 1 Stop the engine and set the machine parking brake FOR SAFETY Before leaving or servicing machine stop on level surface set parking brake and turn off machine 2 Place the main brush position lever in the Main Brush Down position 3 Open the right side main brush door 4 Remove the brush idler arm retaining bolt from the arm hub A B C 00599 REMOVING BRUSH IDLER ARM A Brush Idle...

Page 113: ...rush and main brush raised position the main brush over the chalked area 3 Place the hopper lift and side brush lever into the Side Brush On position and the main brush vacuum fan and filter shaker switch into the bottom Main Brush On position 4 Place the main brush position lever in the Main Brush Down position for 15 to 20 seconds while keeping a foot on the brakes to keep the machine from movin...

Page 114: ... top Tighten the locking wing nut and recheck the main brush pattern Repeat the procedure until the main brush pattern is within the specified range A B 00563 MAIN BRUSH HEIGHT ADJUSTMENT KNOB A Height Adjustment Knob B Wing Nut SIDE BRUSH The side brush sweeps debris from curbs or gutters into the path of the main brush It should be inspected daily for wear or damage Remove any string or wire fou...

Page 115: ...gine and set the machine parking brake FOR SAFETY Before leaving or servicing machine stop on level surface set parking brake and turn off machine 4 Place the side brush position lever in the Side Brush Up position 5 Remove the side brush retaining pin from the side brush hub and shaft by pulling the pin keeper off over the end of the pin A B 02485 SIDE BRUSH A Side Brush B Retaining Pin 6 Slide t...

Page 116: ...r support bar and lower the hopper onto the hopper support bar WARNING Falling hopper Engage hopper support bar before working under hopper 4 Stop the engine FOR SAFETY Before leaving or servicing machine stop on level surface set parking brake and turn off machine 5 Remove the hopper lip retaining strip mounting bolts A B C 00604 HOPPER LIP SKIRTS A Hopper Lip Side Skirt B Retaining Strip C Hoppe...

Page 117: ...arking brake and turn off machine 3 Open the main brush doors 4 Remove the brush door skirt retaining bolts A B C 00570 BRUSH DOOR SKIRT A Brush Door Skirt B Skirt Retaining Strip C Brush Door 5 Remove the skirt retaining strip and the door skirt 6 Position the new door skirt and skirt retaining strip on the brush door 7 Thread the skirt retaining bolts through the brush door the door skirt and in...

Page 118: ...d in TO REPLACE MAIN BRUSH A B C C D 00606 REAR SKIRTS A Brush Idler Arm Hub B Skirt Mounting Bracket C Rear Floor Skirt D Brush Contact Skirt 5 Remove the skirt mounting bracket and the brush contact skirt 6 Remove the rear floor skirt from the skirt mounting bracket 7 Thread the rear floor skirt retaining strip mounting bolts through the retaining strip the new rear floor skirt and into the skir...

Page 119: ... on the top and side portions of the machine frame which contact the hopper They seal the main brush compartment The seals should be inspected for wear or damage after every 100 hours of operation A B C 02457 HOPPER SEALS A Side Seal B Seal Retaining Strip C Top Seal HOPPER INSPECTION DOOR SEAL The hopper inspection door seal is located on the hopper inspection door on low dump model machines It s...

Page 120: ...y 100 hours of operation A B 02482 HOPPER COVER SEAL A Hopper Cover B Cover Seal HOPPER VACUUM FAN SEAL The hopper vacuum fan seal is mounted to the lintel on multi level dump model machines It seals the hopper filter compartment to the vacuum fan intake bracket The seal should be checked for wear or damage after every 100 hours of operation Check to make sure that the seal is making good contact ...

Page 121: ... brake linkage so that the brake pedal travels no more than 1 in 25 mm to fully engage the brakes If the brake pedal travels more than 1 in 25 mm it indicates the brake clevises are not adjusted the same Readjust as necessary 9 Reinstall the brake clevis pins 10 Start the engine and raise the hopper 11 Lower the hopper bar 12 Lower the hopper and stop the engine 13 Remove the machine tire blocks P...

Page 122: ...reader tube Before cleaning the solution spreader tube make sure that the cable controlled flow rate valve is opening fully when the solution flow knob is pulled out A brush and hot water may be needed to remove stubborn clogs A sharp instrument may be used to clear the small distribution holes in the spreader tube A B C 02769 SPREADER TUBE A Recovery Tank B Spreader Tube C Distribution Holes SCRU...

Page 123: ... scrub brush off the drive hub A B C 02770 REMOVING SCRUB BRUSH A Bracket B Idler Arm C Scrub Brush 6 Align the scrub brush drive slots with the drive keys on the drive nuts 7 Slide the scrub brush onto the drive hub 8 Slide the idler hub onto the scrub brush and arm bracket 9 Secure the idler arm with nut 10 Check and adjust scrub brush pattern as described in TO CHECK AND ADJUST SCRUB BRUSH PATT...

Page 124: ...AL SCRUB BRUSH PATTERN A Scrub Brush Pattern B 2 in 50 mm To adjust the width of the pattern adjust the position of the lift linkage clevis on the threaded stud Thread the stud into the clevis to decrease the width Thread the stud out of the clevis to increase the width A B 02747 LIFT LINKAGE A Clevis B Stud If the brush pattern is tapered more than 0 25 in 5 mm the scrub brush must be checked to ...

Page 125: ...ngine and set the machine parking brake FOR SAFETY Before leaving or servicing machine stop on level surface set parking brake and turn off machine 2 Open the front access door 3 Remove the drain hose from its retention plug and lower it to a floor drain NOTE The tank will not empty with the vacuum fan operating A B C 02748 DRAIN HOSE A Retention Plug B Drain Hose C Front Access Door TO CLEAN THE ...

Page 126: ... hopper to draw water solution out of the debris collected in the hopper The debris hopper should be emptied whenever the recovery tank is drained It should be sprayed clean daily To empty the debris hopper raise the scrub attachment with the hopper lift and side brush lever The debris will empty as the unit is lifted and tilted back A B 02754 DEBRIS HOPPER A Vacuum Hose B Debris Hopper The debris...

Page 127: ...ing Pin D Chain E Hook 3 Pull the pin keeper out and remove the two squeegee assembly retaining pins Release the pin keeper 4 Slide the squeegee assembly out of the machine 5 Remove the five squeegee retaining bolts from the squeegee assembly 6 Remove the squeegee blade from the squeegee frame 7 Position a new squeegee blade on the squeegee frame 8 Secure the blade with the blade retainer and reta...

Page 128: ...the squeegee switch into the Squeegee Down position 2 Stop the engine and set the machine parking brake FOR SAFETY Before leaving or servicing machine stop on level surface set parking brake and turn off machine 3 Remove the retaining pin from each end of the squeegee Remove the end brackets A B C D 02773 REMOVING RETAINING PINS A Retaining Pin B End Bracket C Squeegee Blade D Band 4 Open the rear...

Page 129: ...assembly from the squeegee cross bar A B C 04635 CROSS BAR A Cross Bar B Squeegee Frame Nut C Squeegee Assembly 5 Remove the retaining pins from each end of the squeegee Remove the end brackets A B C D 02773 REMOVING RETAINING PINS A Retaining Pin B End Bracket C Squeegee Blade D Band 6 Remove the hair cotter pin from the center of the front retaining band 7 Pull the retaining band back up strip a...

Page 130: ... SAFETY Before leaving or servicing machine stop on level surface set parking brake and turn off machine 4 Check the squeegee It should contact the floor evenly side to side and deflect 0 88 in 20 mm for smooth floors and 1 5 in 40 mm for rough floors If not continue with step 5 A B 03719 SQUEEGEE DEFLECTION A Squeegee B Deflection NOTE The squeegee blades must be new or have a new wiping edge con...

Page 131: ...ustment Bolt C Cross Bar 9 Adjust the squeegee deflection with the two squeegee adjustment studs To increase deflection increase down pressure by adjusting the stud forward A B C 04634 SQUEEGEE STUD A Squeegee B Stud C Jam Nut To decrease deflection decrease down pressure by adjusting the stud backward Loosen the jam nuts on both ends of the rods before making adjustments Tighten the jam nuts afte...

Page 132: ...d string or wire after each use Replace the snow broom when the remaining bristles measure 1 25 in 30 mm or less in length TO REPLACE SNOW BROOM 1 Stop the engine and set the machine parking brake FOR SAFETY Before leaving or servicing machine stop on level surface set parking brake and turn off machine 2 Remove the bolt holding the idler arm to the cross shaft A B C 02763 IDLER ARM A Cross Shaft ...

Page 133: ...T TORQUE CHART 4 3 METRIC BOLT TORQUE CHART 4 3 BOLT IDENTIFICATION 4 3 THREAD SEALANT AND LOCKING COMPOUNDS 4 3 HYDRAULIC FITTING INFORMATION 4 4 HYDRAULIC TAPERED PIPE FITTING NPT TORQUE CHART 4 4 HYDRAULIC TAPERED SEAT FITTING JIC TORQUE CHART 4 4 HYDRAULIC O RING FITTING TORQUE CHART 4 4 ...

Page 134: ...APPENDIX 285 MM191 12 89 4 2 ...

Page 135: ...0 650 678 881 757 984 1026 1334 NOTE Decrease torque by 20 when using a thread lubricant METRIC BOLT TORQUE CHART Thread Class 8 8 Class 10 9 Size Torque ft lb Nm Torque ft lb Nm ______________________________________________________________ M4 2 3 3 4 M5 4 5 6 8 M6 7 9 10 14 M8 18 24 25 34 M10 32 43 47 64 M12 58 79 83 112 M14 94 127 133 180 M16 144 195 196 265 M20 260 352 336 455 M24 470 637 664 ...

Page 136: ...__________ 0 25 0 44 20 9 ft lb 12 Nm 0 38 0 56 18 20 ft lb 27 Nm 0 50 0 75 16 30 ft lb 41 Nm 0 62 0 88 14 40 ft lb 54 Nm 0 75 1 12 12 70 ft lb 95 Nm 1 0 1 31 12 90 ft lb 122 Nm HYDRAULIC O RING FITTING TORQUE CHART Tube Thread Minimum Maximum O D in Size Torque Torque ______________________________________________________________ 0 25 0 44 20 6 ft lb 8 Nm 9 ft lb 12 Nm 0 38 0 56 18 13 ft lb 18 Nm...

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Tennant 285, Operator'S Manual

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