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CA4HC WALK-BEHIND TROWEL • OPERATION MANUAL — REV. #1 (06/24/20) — PAGE 39

MAINTENANCE

Trowel Arm Removal

Remove the two remaining Zerk grease fittings and Allen

head screws from the spider assembly (Figure 48).

Figure 48. Trowel Arm Removal

Blade Replacement

It is recommended to replace

all

of the trowel blades at the

same time. If only one or some of the blades are changed,

the machine may wobble or bounce and will not finish

concrete consistently.

1. Place the trowel on a flat, level surface and pitch the

blades as flat as possible.

2. Remove the two bolts and lock washers securing the

blade to the trowel arm (Figure 49), then remove the

blade.

Figure 49. Blade Removal

S

SPIDER

PLATE

TROWEL

ARM

ZERK GREASE

FITTING

ZERK

FITTING CAP

WASHER

NOTICE

Please note the orientation of each blade on the trowel

arm before removal.

BLADE

ARM

HEX HEAD

BOLT

LOCK

WASHER

3. Wire brush and remove all concrete and debris from all

six sides of the trowel arm. This is important to properly

seat the new blade.

4. Install the new blade onto the trowel arm, maintaining

the proper blade orientation as noted during removal.

Secure with the bolts and washers that were removed

earlier.

5. Repeat steps 2–4 for the remaining three blades.

Reassembly

1. Clean the wear plates and thrust collar, and examine

the entire spider assembly. Use a wire brush to remove

any concrete or rust buildup. Replace any spider

components that are damaged or out-of-round.

2. Inspect the bronze trowel arm bushing, and clean

it if necessary. If the bushing is damaged, worn, or

out-of-round, replace it.

3.  Reinstall the trowel arm bushing onto the trowel arm.
4.  Repeat steps 2–3 for each trowel arm.
5.  Make sure the spring tensioner is in the correct position

to exert tension on the trowel arm.

6. Insert all trowel arms with levers (and bronze bushings

already installed) into the spider plate. Align the grease

holes on the bushings with the grease hole fittings on

the spider plate.

7. Lock the trowel arms in place by tightening the Zerk

grease fitting hex head bolts and jam nuts.

8.  Reinstall the blades onto the trowel arms.
9.  Install the stabilizer ring onto the spider assembly.
10.  Lubricate all grease points (Zerk fittings) with premium

lithium 12-based grease, conforming to NLG1 grade #2

consistency.

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Содержание WHITEMAN CA4HC

Страница 1: ... MANUAL THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES MODEL CA4HC WALK BEHIND TROWEL HONDA GX120 GASOLINE ENGINE Revision 1 06 24 20 PN 21768 T o o r d e r g o t o D i s c o u n t E q u i p m e n t c o m ...

Страница 2: ...S Curtis Gehl Pavers Heli Honda ICS PowerGrit IHI Partner Imer Clipper MMD Koshin Rice CH E General Equip ment Amida Coleman NAC Gradall Square Shooter Kent Stanley Tamco Toku Hatz Kohler Robin Wisconsin Northrock Oztec Toker TK Rol Air APT Wylie Ingersoll Rand Doosan Innovatech Con X Ammann Mecalac Makinex Smith Surface Prep Small Line Wanco Yanmar Discount Equipment com is your online resource f...

Страница 3: ...PAGE 2 CA4HC WALK BEHINDTROWEL OPERATION MANUAL REV 1 06 24 20 PROPOSITION 65 WARNING T o o r d e r g o t o D i s c o u n t E q u i p m e n t c o m ...

Страница 4: ... reproductive harm If you are unfamiliar with the risks associated with the particular process and or material being cut or the composition of the tool being used review the material safety data sheet and or consult your employer the material manufacturer supplier governmental agencies such as OSHA and NIOSH and other sources on hazardous materials California and some other authorities for instanc...

Страница 5: ...t 6 Safety Information 7 12 Lifting and Transporting 13 Specifications 14 Dimensions 15 General Information 16 Components Trowel 18 19 Components Engine 20 Setup 21 24 Inspection 25 26 Operation 27 30 Options 31 32 Maintenance 33 39 Troubleshooting Trowel 40 41 Troubleshooting Engine 42 43 NOTICE Equipment specifications and features are subject to change without notice T o o r d e r g o t o D i s...

Страница 6: ...evel 3 Fuel system refueling procedure 4 Operation of controls machine not running 5 Safety controls safety stop switch operation 6 Emergency stop procedures 7 Startup of machine engine choke 8 Maintaining a hover 9 Maneuvering 10 Pitching 11 Concrete finishing techniques 12 Shutdown of machine 13 Lifting of machine lifting bail 14 Machine transport and storage T o o r d e r g o t o D i s c o u n ...

Страница 7: ...EV 1 06 24 20 DAILY PRE OPERATION CHECKLIST Daily Pre Operation Checklist 1 Engine oil level 2 Gearbox oil level 3 Condition of blades 4 Blade pitch operation 5 Safety stop switch operation T o o r d e r g o t o D i s c o u n t E q u i p m e n t c o m ...

Страница 8: ...our words DANGER WARNING CAUTION or NOTICE SAFETY SYMBOLS DANGER Indicates a hazardous situation which if not avoided WILL result in DEATH or SERIOUS INJURY WARNING Indicates a hazardous situation which if not avoided COULD result in DEATH or SERIOUS INJURY CAUTION Indicates a hazardous situation which if not avoided COULD result in MINOR or MODERATE INJURY NOTICE Addresses practices not related t...

Страница 9: ...sured at operator s seat WARNING CANCER REPRODUCTIVE HARM www P65Warnings ca gov P N 38707 WARNING Cancer and Reproductive Harm This equipment may contain or produce chemicals and substances known to cause cancer birth defects and other reproductive harm ALWAYS work in a well ventilated area and ALWAYS wear approved safety equipment GENERAL SAFETY CAUTION DONOToperatethisequipmentwithoutproperprot...

Страница 10: ...oxide This gas is colorless and odorless and can cause death if inhaled The engine of this equipment requires an adequate free flow of cooling air NEVER operate this equipment in any enclosed or narrow area where the free flow of air is restricted If the air flow is restricted it will cause injury to people and property and serious damage to the equipment or engine NEVER operate the equipment in a...

Страница 11: ...tained for a fee by ordering through their website at www aem org Order Form PT 160 KEEP CLEAR ENGINE SAFETY WARNING DO NOT place hands or fingers inside the engine compartment while the engine is running DO NOT operate the engine with heat shields or guards removed Keep fingers hands hair and clothing away from all moving parts to prevent injury DO NOT remove the engine oil drain plug while the e...

Страница 12: ...UEL TRANSPORTING SAFETY WARNING DO NOT allow any person or animal to stand underneath the equipment while it is being lifted NOTICE Some walk behind trowels can be lifted or moved by two people utilizing lifting tubes or other special attachments Generally however they must be lifted using lifting bails and cranes hoists or forklifts DO NOT transport the trowel with float pans attached unless safe...

Страница 13: ...l parts be sent to a recycling center Metal recycling involves the collection of metal from discarded products and its transformation into raw materials to use in manufacturing a new product Recyclers and manufacturers alike promote the process of recycling metal Using a metal recycling center promotes energy cost savings EMISSIONS INFORMATION NOTICE The gasoline engine used in this equipment has ...

Страница 14: ...by the center lifting bail using a crane or other device with adequate lifting capacity WARNING NEVER lift the trowel to unnecessary heights NEVER stand underneath the trowel while it is being lifted Lifting Bail The lifting bail provides an optimal lift point for the trowel When lifting the trowel onto a concrete slab attach a chain or rope to the lifting bail MAKE SURE the capacity of the liftin...

Страница 15: ...30 general use Dimensions L W H 11 7 13 6 13 0 in 297 346 329 mm Dry Net Weight 29 lb 13 kg NOTES 1 Sound pressure and power levels are A weighted measures per ISO 3744 2010 They are measured under operating conditions of the machine which generate the most repeatable but highest values of the sound levels Under normal circumstances the sound level will vary depending on the condition of the mater...

Страница 16: ... PAGE 15 DIMENSIONS Figure 2 CA4HC Dimensions D A B C Table 4 CA4HC Dimensions A Height Lifting Bail 28 0 in 711 mm B Height Handle 36 3 in 921 mm C Width 24 0 in 610 mm D Length 61 2 in 1 555 mm T o o r d e r g o t o D i s c o u n t E q u i p m e n t c o m ...

Страница 17: ...e of your engine If the original engine manual becomes lost or damaged please contact your nearest Multiquip dealer for a replacement Drive System Power is transferred from the engine to the gearbox input shaft via a V belt pulley drive system The pulley engages a centrifugal clutch Gearbox The gearbox is located beneath the engine and transfers power to the spider assembly The gearbox controls th...

Страница 18: ...CA4HC WALK BEHINDTROWEL OPERATION MANUAL REV 1 06 24 20 PAGE 17 NOTES T o o r d e r g o t o D i s c o u n t E q u i p m e n t c o m ...

Страница 19: ...4HC WALK BEHINDTROWEL OPERATION MANUAL REV 1 06 24 20 COMPONENTS TROWEL Figure 3 Trowel Components 4 5 6 9 7 10 15 20 16 19 18 17 11 14 12 13 8 1 3 2 T o o r d e r g o t o D i s c o u n t E q u i p m e n t c o m ...

Страница 20: ...e star wheel counterclockwise to pitch the blades flat no pitch 9 Quick Pitch Trigger Pivots back and forth to adjust blade pitch 10 Guard Ring Protects the rotating blades from damage and protects the operator from injury DO NOT put hands or feet inside the guard ring while the engine is running NEVER attempt to lift the trowel by the guard ring 11 Trowel Arms 4 Blades or float pans are attached ...

Страница 21: ...e engine 6 FuelValve Lever Open to allow the flow of fuel and close to prevent the flow of fuel 7 Oil Drain Bolt Remove to drain oil from the engine crankcase 8 Dipstick Oil Filler Cap Remove to determine if engine oil is low Add oil through this port as recommended in Table 5 9 Choke Lever Aids in starting a cold engine or starting in cold weather conditions The choke enriches the fuel mixture 10...

Страница 22: ... is spring loaded Personal injury or damage can result from improper handling installation or adjustment Use extreme caution when handling this component 1 Make sure that the Quick Pitch trigger Figure 6 has been attached to the upper handlebar and the pitch control cable has slack Figure 6 Quick Pitch Handle Assembly 2 Rotate the T handle knob Figure 6 on the top side of the upper handlebar count...

Страница 23: ...n the cable housing clamp screw and the swivel stop screw Figure 8 Figure 8 Throttle Cable Installation 5 Place the primary throttle return spring between the cable housing clamp and the swivel stop screw Figure 8 6 Feed the cable assembly through the cable housing clamp return spring and swivel stop hole until the cable housing extends under the housing clamp to its far edge Figure 8 7 Adjust the...

Страница 24: ... The Quick Pitch trigger is under spring tension and can snap in the direction of force toward the user if not firmly grasped which may cause bodily injury TRIGGER LOCK TRIGGER 3 Remove any nuts from the pitch cable end Insert the cable through the yoke eyelet Figure 12 Figure 12 Cable to Yoke Attachment 4 Thread the conical nut Figure 12 up to the eyelet Tighten the conical nut by hand to remove ...

Страница 25: ...jacent to the Z clips Figure 13 Float Pan Installation 2 Rotate the blades into position under the Z clips Be sure to rotate the blades in the operational direction of travel or use the engine to rotate the blades into position 3 Secure the blade tie downs to the far side of the Z clip brackets with the tie down knobs 4 Make sure the blade edges are secured under the Z clips and the tie downs are ...

Страница 26: ...mmended oil type listed in Table 5 Refer to Table 2 for maximum engine oil capacity Figure 15 Engine Oil Level DIPSTICK UPPER LIMIT LOWER LIMIT Table 5 Engine OilType Season Temperature OilType Summer 25 C or Higher SAE 10W 30 Spring Fall 25 C 10 C SAE 10W 30 20 Winter 0 C or Lower SAE 10W 10 FUEL Remove the fuel filler cap and inspect the fuel level in the tank If fuel is low replenish with 86 oc...

Страница 27: ...pearance on the sides of the belt Either of these conditions can cause overheating of the belt which may weaken the belt and increase the possibility of it breaking 3 Replace the V belt immediately if any of the aforementioned wear conditions are observed GLAZED OIL SOAKED BROKEN CORD FAILURE CRACKS MISSING RUBBER SIDEWALL WEAR WORN BACK COVER BELT GUARD Inspect the belt guard Figure 18 for damage...

Страница 28: ...l Valve Lever Open 2 Place the throttle lever in the IDLE position Figure 21 Figure 21 Throttle Lever Idle NOTICE DO NOT attempt to operate the trowel until the Safety Inspection and Operation sections of this manual have been read and thoroughly understood FUEL VALVE LEVER ON OFF THROTTLE LEVER IDLE POSITION 3 If starting a cold engine place the choke lever in the CLOSED position Figure 22 Figure...

Страница 29: ...repeat steps 1 6 8 Before operating the trowel run the engine for several minutes and check for fuel leaks and loose components ON OFF ENGINE SWITCH STARTER GRIP TO BEGINTROWELING Place the throttle lever Figure 26 in the RUN position Figure 26 Throttle Lever Run PITCHINGTHE BLADES Standard Handle To pitch the blades upward with the standard handle Figure 27 turn the star wheel clockwise Turn the ...

Страница 30: ...IGGER LOCK FULL PITCH NO PITCH TRIGGER THROTTLE LEVER IDLE POSITION 2 After the engine has cooled place the engine ON OFF switch in the OFF position Figure 30 Figure 30 Engine ON OFF Switch OFF 3 Place the fuel valve lever in the CLOSED position Figure 31 Figure 31 Fuel Valve Lever Closed CONCRETE FINISHINGTECHNIQUES The instructions in this manual are provided as a basic guide to trowel operation...

Страница 31: ...2 Maneuvering the Trowel BACKWARD BACKWARD To move the trowel to the operator s left lift up on the handle To move the trowel to the right push down on the handle REMEMBER If you let go of the trowel simply step away and let the trowel come to a complete STOP before trying to recover it The best method for finishing concrete is to slowly walk backward with the trowel guiding it from side to side T...

Страница 32: ...information Figure 33 Standard Handle STAR WHEEL Quick Pitch Handle Optional The optional Quick Pitch handle Figure 34 allows the operator to quickly and easily adjust blade pitch using a spring loaded trigger handle Refer to the Operation section of this manual for more information Please contact Multiquip unit sales to order this option Figure 34 Quick Pitch Handle TRIGGER T o o r d e r g o t o ...

Страница 33: ...uip parts dealer or importer Combination Blades Standard This trowel is equipped with combination blades Figure 35 which provide optimal performance for both floating and finishing operations These blades are versatile and should satisfy most troweling needs Figure 35 Combination Blade Float Pans Optional Float pans Figure 36 attach to the spider assembly and allow the trowel to float on wet concr...

Страница 34: ...cessary 2 Replace the paper filter element only 1 Service more frequently when used in dusty areas 2 These components should be serviced by your service dealer unless you have the proper tools and are mechanically proficient Refer to your engine shop manual for service procedures 3 For commercial use log hours of operation to determine proper maintenance intervals Table 7 Trowel Maintenance Schedu...

Страница 35: ...ervice a hot engine CAUTION ALWAYS disconnect the spark plug wire from the spark plug and secure it away from the engine before performing trowel maintenance or adjustments ENGINE MAINTENANCE Inspect the engine daily for cleanliness oil or fuel leakage and loose fasteners Air Cleaner The engine air cleaner is equipped with a replaceable high density paper element Refer to Figure 37 for air cleaner...

Страница 36: ...engine causing premature wear and failure NOTICE ALWAYS drain the engine oil while the oil is warm DRAIN BOLT SEALING WASHER OIL FILLER DIPSTICK MAINTENANCE Figure 39 Spark Plug 2 Using a feeler gauge adjust the spark plug gap Figure 39 The gap should measure 0 028 0 031 inch 0 7 0 8 mm 3 To prevent cross threading thread the spark plug into the cylinder hole by hand then tighten securely V Belt 1...

Страница 37: ...PARK ARRESTER SCREEN WIRE BRUSH 5 Reinstall the spark arrester muffler protector and exhaust deflector in reverse order of disassembly TROWEL MAINTENANCE Clean the trowel daily Remove all dust and slurry buildup Makesurelubricationisperformedafteranysteamcleaning Trowel Lubrication Every 8 Hours Regular lubrication is required to maintain your trowel in optimal working condition Perform the follow...

Страница 38: ...locks under the main guard ring for support Any uneven spots in the floor or debris under the trowel blades will cause an incorrect perception of adjustment Ideally a 5 ft 5 ft 1 5 m 1 5 m 3 4 inch thick flat steel plate should be used 2 Pitch the blades as flat as possible Figure 45 The pitch adjustment bolts should barely contact 0 10 inch maximum clearance the lower wear plate All adjustment bo...

Страница 39: ...T DISHED EFFECT ON FINISHED CONCRETE MAINTENANCE Figure 47 Spider Removal 2 Remove the Zerk grease fitting and Allen head screw located on the opposite side of the spider plate Figure 47 3 Carefully lift the upper trowel gearbox assembly off of the spider assembly A light tap with a rubber mallet may be necessary to dislodge the spider from the main shaft of the gearbox S GEARBOX GEARBOX SHAFT THR...

Страница 40: ...r blade orientation as noted during removal Secure with the bolts and washers that were removed earlier 5 Repeat steps 2 4 for the remaining three blades Reassembly 1 Clean the wear plates and thrust collar and examine the entire spider assembly Use a wire brush to remove any concrete or rust buildup Replace any spider components that are damaged or out of round 2 Inspect the bronze trowel arm bus...

Страница 41: ... 50 mm from the blade bar to the trailing edge Combo blades should measure no less than 3 5 89 mm Trailing edge of the blade should be straight and parallel to the blade bar Pitch adjustment Check that all blades are set at the same pitch angle as measured at the spider A field adjustment tool is available for height adjustment of the trowel arms Contact Parts Dept Bent trowel arms Check the spide...

Страница 42: ...ion in manual Clutch slipping or sluggish response to engine speed change Worn V belts Replace V belt Hand clutch out of adjustment Adjust per instructions in maintenance section of this manual Worn or defective hand clutch parts Replace parts as necessary Worn bearings in gearbox Rotate input shaft by hand If shaft rotates with difficulty check the input and output shaft bearings Replace as neces...

Страница 43: ...d Check switch wiring replace switch Ignition coil defective Replace ignition coil Improper spark gap points dirty Set correct spark gap and clean points Condenser insulation worn or short circuiting Replace condenser Spark plug wire broken or short circuiting Replace defective spark plug wiring Difficult to start fuel is available spark is present and compression is normal Wrong fuel type Flush f...

Страница 44: ...ns if applicable Recoil mechanism clogged with dust and dirt Clean recoil assembly with soap and water Spiral spring loose Replace spiral spring Starter malfunctions Loose damaged wiring Ensure tight clean connections on battery and starter Battery insufficiently charged Recharge or replace battery Starter damaged or internally shorted Replace starter Burns too much fuel Over accumulation of exhau...

Страница 45: ...S Curtis Gehl Pavers Heli Honda ICS PowerGrit IHI Partner Imer Clipper MMD Koshin Rice CH E General Equip ment Amida Coleman NAC Gradall Square Shooter Kent Stanley Tamco Toku Hatz Kohler Robin Wisconsin Northrock Oztec Toker TK Rol Air APT Wylie Ingersoll Rand Doosan Innovatech Con X Ammann Mecalac Makinex Smith Surface Prep Small Line Wanco Yanmar Discount Equipment com is your online resource f...

Страница 46: ...OPERATION MANUAL PN 21768 HERE S HOW TO GET HELP PLEASE HAVE THE MODEL AND SERIAL NUMBER ON HAND WHEN CALLING T o o r d e r g o t o D i s c o u n t E q u i p m e n t c o m ...

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