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OPERATION

2-3

255 SERIES II MM189 (12---89)

PREPARATION FOR OPERATION

AFTER UNLOADING AND BEFORE OPERATING

THE MACHINE:

1. Check the machine for shipping damage.

2. Read this manual carefully before operating or

servicing the machine.

FOR SAFETY: Do not operate the machine unless

operation manual is read and understood.

3. Check the hydraulic fluid level in the hydraulic

fluid reservoir, using the dipstick provided.

TENNANT

hydraulic fluid is recommended. If

TENNANT

hydraulic fluid is not available, 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 of the rear tire.

8. Fill the fuel tank, or install an LPG fuel tank on

the machine.

WARNING: Machine can have static

electricity charge. When pouring fuel, spark

can ignite fuel causing fire or explosion. Connect

wire attached to fuel can to machine to discharge

spark before pouring fuel.

Содержание 255 Series II

Страница 1: ...r 255 Series II Sweeper Scrubber...

Страница 2: ...ts will be obtained at minimum costs if D The machine is operated with reasonable care D The machine is maintained regularly per the maintenance instructions provided D The machine is maintained with...

Страница 3: ...ance 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 i...

Страница 4: ...t is 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 seri...

Страница 5: ...oth 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...

Страница 6: ...ABOUT THIS MANUAL 255 SERIES II MM189 12 89 d...

Страница 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 serv...

Страница 8: ...ARNING 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 WARN...

Страница 9: ...f these or any labels become damaged or illegible install a new label in its place 02453 ENGINE FAN LABEL LOCATED ON ENGINE FAN SHROUD BUMPER CHAIN LABEL LOCATED ON UNDERSIDE OF BUMPER LOW DUMP MODEL...

Страница 10: ...HOPPER LIFT ARMS LABEL LOCATED ON HOPPER LIFT ARMS MULTI LEVEL DUMP MODEL ONLY EMISIONS LABEL LOCATED ON LEFT SIDE OF OPERATOR COMPARTMENT HOPPER SUPPORT BAR LABEL LOCATED ON HOPPER SUPPORT BAR FOR SA...

Страница 11: ...DJUSTMENT KNOB 2 10 ENGINE HOUR METER 2 10 Page ENGINE COOLANT TEMPERATURE GAUGE 2 11 ENGINE OIL PRESSURE GAUGE 2 11 BATTERY CONDITION GAUGE 2 11 CLOGGED FILTER LAMP 2 11 IGNITION SWITCH 2 11 SIDE BRU...

Страница 12: ...OOTING 3 16 HYDRAULIC COMPONENTS TROUBLESHOOTING 3 18 Page ENGINE 3 19 ENGINE LUBRICATION 3 19 COOLING SYSTEM 3 19 AIR INTAKE SYSTEM 3 20 AIR FILTER RESTRICTION INDICATOR 3 20 AIR FILTER 3 20 TO REPLA...

Страница 13: ...RECOVERY TANK 3 56 TO DRAIN THE RECOVERY TANK 3 56 TO CLEAN THE RECOVERY TANK 3 56 Page DEBRIS HOPPER 3 57 SIDE SQUEEGEE 3 58 TO REPLACE SIDE SQUEEGEE BLADE 3 58 REAR SQUEEGEE 3 59 TO REPLACE OR ROTA...

Страница 14: ...Group Multi Level Dump 6 11 Fig 7 Stabilizer Leg Group Multi Level Dump 6 12 Fig 8 Side Brush Group Multi Level Dump 6 13 Page Fig 9 Main Brush Lift Group Multi Level Dump 6 14 Fig 10 Front Wheel and...

Страница 15: ...1 Hydraulic Valve Breakdown 62550 8 15 Fig 12 Hydraulic Valve Breakdown 34319 8 16 Fig 13 Hydraulic Solenoid Valve Breakdown 82754 8 17 Fig 14 Hydraulic Cylinder Breakdown 04468 8 18 Fig 15 Hydraulic...

Страница 16: ...GENERAL INFORMATION 255 SERIES II MM189 6 90 x...

Страница 17: ...INE 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 M...

Страница 18: ...SPECIFICATIONS 255 SERIES II MM189 12 89 1 2...

Страница 19: ...ive worm and sector gear Power source manual HYDRAULIC SYSTEM Function operates propelling hopper lift hopper dump main brush drive side brush drive and vacuum fan drive Control valve low dump model s...

Страница 20: ...total 6 3 gal 24 L GENERAL MACHINE DIMENSIONS CAPACITIES Length low dump model 96 in 2440 mm Length multi level dump model 98 in 2490 mm Width low dump model 56 in 1420 mm Width multi level dump model...

Страница 21: ...ATIONS 1 5 255 SERIES II MM189 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 Mode...

Страница 22: ...SPECIFICATIONS 255 SERIES II MM189 NIL 1 6...

Страница 23: ...LOW KNOB 2 13 CIRCUIT BREAKERS 2 13 MACHINE OPERATION 2 14 NORMAL SWEEPING OPERATION 2 14 PRE START CHECKLIST 2 14 TO START MACHINE 2 14 TO SWEEP 2 15 TO DUMP HOPPER 2 15 Page POST OPERATION CHECKLIST...

Страница 24: ...OPERATION 255 SERIES II MM189 12 89 2 2...

Страница 25: ...able 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 n...

Страница 26: ...2746 02453 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 Attachm...

Страница 27: ...Squeegee Up Squeegee Down Solution Flow Idle Fast 1 Fast 2 Engine Start Hopper Roll Out Hopper Roll In Out Hold Hopper Roll In Side Brush On Hopper Up Hopper Down Hopper Hold Headlights Hazard Light M...

Страница 28: ...OPERATION 255 SERIES II MM189 12 89 2 6 INSTRUMENT PANEL SYMBOLS cont Circuit Breaker 1 Circuit Breaker 2 Circuit Breaker 3 Circuit Breaker 4 Circuit Breaker 5 Circuit Breaker 6 Circuit Breaker 7...

Страница 29: ...r Seat R Engine Hour Meter E Squeegee Switch S Engine Coolant Temperature Gauge F Water Valve Switch T Horn Button G Fuel Level Gauge U Engine Oil Pressure Gauge H Throttle Lever V Battery Condition G...

Страница 30: ...SWITCH The squeegee switch is present on machines equipped with the rear squeegee or scrub attachment accessories The switch controls the position of the rear squeegee To raise the rear squeegee plac...

Страница 31: ...To dump the hopper raise the hopper to the desired height with the hopper lift and side brush lever Then push the hopper dump lever forward into the Hopper Roll Out position To hold the hopper in the...

Страница 32: ...switch controls the main brush rotation the vacuum fan and filter shaker motor The switch also controls the scrub brush rotation when the machine is equipped with the scrub attachment and the snow bro...

Страница 33: ...th the filter shaker see Main Brush Vacuum Fan and Filter Shaker Switch If the filter shaker does not clean the filter enough to turn the lamp off clean the filter as described in HOPPER DUST FILTER i...

Страница 34: ...rm 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 fu...

Страница 35: ...olution flow switch is used to start and stop solution flow To increase solution flow pull the knob out To decrease solution flow push the knob in Pushing the knob all of the way in will stop solution...

Страница 36: ...orm 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...

Страница 37: ...de brush position lever into the Side Brush Down position 3 Sweep as required TO DUMP HOPPER 1 Pull the main brush position lever back into the Main Brush Up position 2 Pull the side brush position le...

Страница 38: ...is closed Check for LPG odor indicating a fuel leak Check under machine for leak spots NORMAL SCRUBBING OPERATION A normal scrubbing operation consists of seven typical operations pre start checklist...

Страница 39: ...he machine to the solution filling site TO SCRUB Plan the scrubbing in advance Try to arrange long runs with minimum stopping and starting Do an entire floor or section at one time Pick up oversize de...

Страница 40: ...Brush Up position and the scrub brush position lever into the raise position Move the side brush position lever into the Side Brush Up position 3 Move the hopper lift and side brush lever to the Hopp...

Страница 41: ...machine for leak spots DOUBLE SCRUBBING OPERATION Double scrubbing is a method of removing heavy accumulations of soilage dirt wax or spills It involves making two passes over the area to be cleaned...

Страница 42: ...ion B Vacuum Plug C Hose 9 Start the engine and move the throttle control to the Fast 1 position 10 Place the main brush vacuum fan and filter shaker switch in the Main Brush On position 11 Vacuum the...

Страница 43: ...d vacuum hoses between the hopper and the machine 5 Reposition and latch the hopper cover on the hopper 6 Start the engine raise the hopper and place the hopper lift and side brush lever in the Hopper...

Страница 44: ...per 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...

Страница 45: ...the 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 kno...

Страница 46: ...attachment 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 disconn...

Страница 47: ...ickup 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...

Страница 48: ...the 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 s...

Страница 49: ...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...

Страница 50: ...in 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...

Страница 51: ...from 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 a...

Страница 52: ...e snow broom support arm to the center rear 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 dire...

Страница 53: ...d filter shaker switch should be in the Main Brush On position to drive the snow broom The main brush and vacuum fan will not operate The hydraulic fluid normally used to drive them is being diverted...

Страница 54: ...5 Reconnect 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 Disc...

Страница 55: ...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 mechani...

Страница 56: ...Replace 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 Flu...

Страница 57: ...tires 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 th...

Страница 58: ...ure 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 bl...

Страница 59: ...o cool down to the surrounding temperature Oil adheres to cold metal surfaces much better than hot surfaces 4 Replace the high tension coil wire and spark plugs 5 Drain the gasoline from the carbureto...

Страница 60: ...OPERATION 255 SERIES II MM189 12 89 2 38...

Страница 61: ...AN LPG FUEL TANK 3 25 FUEL FILTER LOCK 3 25 VAPORIZER REGULATOR 3 25 CARBURETOR 3 25 OIL PRESSURE SWITCH 3 25 Page LPG FUEL TROUBLESHOOTING 3 26 GOVERNOR For machines below serial number 038000 3 27 T...

Страница 62: ...SEAL 3 50 HOPPER DOOR SEALS 3 51 HOPPER COVER SEAL 3 51 HOPPER VACUUM FAN SEAL 3 51 BRAKES AND TIRES 3 52 SERVICE BRAKES 3 52 TO ADJUST BRAKE LINKAGE 3 52 PARKING BRAKES 3 52 TIRES 3 52 Page SCRUB ATT...

Страница 63: ...recommended 1 Check the brush pattern for correct brush adjustment 2 Machines below serial number 038000 Check engine ignition timing 3 Machines below serial number 038000 Torque the cylinder head bo...

Страница 64: ...eck for damage wear and 5 adjustment 5 Main brush Check for damage wear and 1 adjustment 4 Side brush Check for damage wear and 1 adjustment Scrub attachment Check squeegee for damage 1 wear and adjus...

Страница 65: ...s 19 Engine For machines Check and adjust valve 8 serial number 038000 clearance and above Check and adjust idle speed 1 Check and adjust carburetor 1 idle mixture Clean or replace and adjust 4 spark...

Страница 66: ...l A grease fitting has been provided on the support bracket for lubrication purposes Lubricate the rear wheel support bearing with a grease gun after every 200 hours of operation Use a multipurpose wa...

Страница 67: ...stant 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 D...

Страница 68: ...grease 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 s...

Страница 69: ...se the 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...

Страница 70: ...into 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 th...

Страница 71: ...he machine 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 t...

Страница 72: ...d 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 7 Move the directional pedal into the reverse position and r...

Страница 73: ...adjust 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 Reta...

Страница 74: ...MAINTENANCE 255 SERIES II MM189 12 89 3 14 04624 HYDRAULIC SCHEMATIC LOW DUMP MODEL...

Страница 75: ...MAINTENANCE 3 15 255 SERIES II MM189 12 89 04625 HYDRAULIC SCHEMATIC MULTI LEVEL DUMP MODEL...

Страница 76: ...on off switch S 4 failure Replace switch Hydraulic valve failure See HYDRAULIC COMPONENTS TROUBLESHOOTING Solenoid valve failure Hydraulic motor failure See HYDRAULIC COMPONENTS TROUBLESHOOTING Hydrau...

Страница 77: ...NENTS failure TROUBLESHOOTING Hydraulic control valve failure Hydraulic orifice at lift Replace orifice cylinder plugged Lift cylinder failure See HYDRAULIC COMPONENTS TROUBLESHOOTING Hydraulic cylind...

Страница 78: ...leaking 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 bear...

Страница 79: ...he compound manufacturer This is important because of the difference in concentration and composition of the cleaning compounds After cleaning flush the system with clean water Whenever a cooling syst...

Страница 80: ...han is needed allows contaminants to enter the engine unnecessarily Clean or replace the air filter element only when the restriction indicator indicates excessive restriction in the system AIR FILTER...

Страница 81: ...ry E Dust Cap F Wing Nut 8 Clean the interior of the air cleaner housing with a damp cloth Clean the element housing sealing surfaces 9 Using an air hose direct dry clean air maximum 30 psi 205 kPa up...

Страница 82: ...cated 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...

Страница 83: ...y regulator 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 f...

Страница 84: ...to a 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 Th...

Страница 85: ...to the 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...

Страница 86: ...Oil 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 uneven...

Страница 87: ...n off machine 3 Check the governor belt tension as described in GOVERNOR BELT 4 Place the throttle lever in the normal or Fast 1 position There should be a 0 03 to 0 06 in 1 to 2 mm space between the...

Страница 88: ...peed operation may cause more rapid wear and necessitate more frequent inspections 1 Remove the distributor cap Clean the cap and examine for cracks carbon runners or corroded terminals If the vertica...

Страница 89: ...uld begin sooner and advance farther than when checking the centrifugal advance alone Stop the engine 8 If the vacuum advance is not functioning properly remove the distributor and check it on a distr...

Страница 90: ...No 4 cylinder Rotate the crankshaft another 180_ and set the valve lash on both valves on No 3 cylinder Check and adjust for machines below serial number 038000 the intake valve clearance from 0 009...

Страница 91: ...p of 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 dist...

Страница 92: ...MAINTENANCE 255 SERIES II MM189 12 89 3 32 04642 ELECTRICAL SCHEMATIC for machines below serial number 038000...

Страница 93: ...MAINTENANCE 3 33 255 SERIES II MM189 12 89 ELECTRICAL SCHEMATIC for machines serial number 038000 and above...

Страница 94: ...MAINTENANCE 255 SERIES II MM189 12 89 3 34 04642 ELECTRICAL SCHEMATIC ACCESSORIES...

Страница 95: ...MAINTENANCE 3 35 255 SERIES II MM189 6 90 06187 ELECTRICAL SCHEMATIC AUTO SHAKER RFS...

Страница 96: ...MAINTENANCE 255 SERIES II MM189 6 90 3 36 06187 ELECTRICAL SCHEMATIC AUTO SHAKER RFS...

Страница 97: ...he 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 mou...

Страница 98: ...site 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 solu...

Страница 99: ...djustments 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...

Страница 100: ...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 heigh...

Страница 101: ...Hopper 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...

Страница 102: ...ng action 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...

Страница 103: ...od 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...

Страница 104: ...The main brush should be replaced when the remaining bristles measure 1 25 in 30 mm in length TO REPLACE MAIN BRUSH 1 Stop the engine and set the machine parking brake FOR SAFETY Before leaving or ser...

Страница 105: ...r some other material that will not blow away easily to a smooth level floor 2 With the side brush and main brush raised position the main brush over the chalked area 3 Place the hopper lift and side...

Страница 106: ...the 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 H...

Страница 107: ...e 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 4 Place the side brush position lever in the Side...

Страница 108: ...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...

Страница 109: ...t The door must be closed for proper adjustment 8 Slide the brush door skirt up or down so that the skirt clears the floor by 0 25 in 5 mm 9 Tighten the skirt retaining bolts 10 Close the brush doors...

Страница 110: ...both main brush doors and on corresponding portions of the main frame They seal the main brush compartment The seals should be inspected for wear or damage after every 100 hours of operation A B 00570...

Страница 111: ...every 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 se...

Страница 112: ...dal 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 Reinsta...

Страница 113: ...e spreader 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 n...

Страница 114: ...rive 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 Sli...

Страница 115: ...e brush A B 00582 NORMAL 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 i...

Страница 116: ...chine 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 Ret...

Страница 117: ...ined 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 02...

Страница 118: ...taining 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 squee...

Страница 119: ...ess 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 t...

Страница 120: ...eegee 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 and squeegee blade off the squeegee frame 8 Replace or rotate the fr...

Страница 121: ...e 5 Check the squeegee lift cable It should be loose when the squeegee actuator is in the extended lower position The squeegee should clear the floor when the lever is in the retracted lift position 6...

Страница 122: ...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...

Страница 123: ...ngled 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...

Страница 124: ...MAINTENANCE 255 SERIES II MM189 6 90 3 64...

Страница 125: ...BOLT 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...

Страница 126: ...APPENDIX 255 SERIES II MM189 12 89 4 2...

Страница 127: ...n 500 650 678 881 757 984 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 _________________...

Страница 128: ...______________ 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 F...

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