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PAGE 15 — JTNSW20-24HTCSL SERIES RIDE-ON TROWEL • OPERATION MANUAL — REV. #1 (3/24/16) 

GENERAL INFORMATION

JTNSW20HTCSL AND JTNSW24HTCSL SERIES 

RIDE-ON POWER TROWEL FAMILIARIZATION

The JTNSW20HTCSL and JTNSW24HTCSL Series Ride-

On Power Trowels are designed for the floating and finishing 

of concrete slabs. 
Take a walk around your trowel. Take notice of all the 

major components like the engine, blades, air cleaner, 

fuel system, fuel shut-off valve, ignition switch etc. Check 

that there is always oil in the engine, and gear oil in the 

gearbox assembly.
Read all the safety instructions carefully. Safety instructions 

will be found throughout this manual and on the machine. 

Keep all safety information in good, readable condition. 

Operators should be well trained on the operation and 

maintenance of the trowel.
Look at the operator control levers. Grab the control levers 

and move them around a bit. Notice how moving the control 

levers causes the gearboxes and frame to move.
Notice the foot pedal which controls the engine speed. Also 

take a look at the main drive line of the trowel. Take note 

and reference how the belts look. This is the way the belts 

should look when adjusted properly.
Before using your trowel, test it on a flat, watered-down 

section of finished concrete. This trial test run will increase 

your confidence in using the trowel and at the same time it 

will familiarize you with the trowel’s controls and indicators. 

In addition you will understand how the trowel will handle 

under actual conditions.

ENGINE

This trowel is equipped with an air-cooled, 4-stroke, 

overhead valve, 2-cylinder Honda GX630, 20 HP, or GX690, 

24 HP, gasoline engine. Refer to the engine owner’s manual 

for specific instructions regarding engine operation. This 

manual is included with the trowel at the time of shipping. 

Contact your nearest Multiquip Dealer if you need a 

replacement.

BLADES

The blades of the trowel finish the concrete as they are 

swirled around the surface. Blades are classified as 

combination (10 or 8 inches wide) and finish (6 inches 

wide). This trowel is equipped with four blades per rotor 

equally spaced in a radial pattern and attached to a vertical 

rotating shaft by means of a spider assembly.
Figure 2 and Figure 3 show the location and functions of the 

controls, indicators and general maintenance parts. Each 

control may perform more than one function. 

GEARBOXES

The JTNSW20HTCSL and JTNSW24HTCSL ride-on 

trowel consists of two separate gearbox assemblies that 

are enclosed in rugged cast aluminum gear cases. The 

main gear is a high quality bronze and steel composite. 

The worm gear is composed of hardened steel.
Cooling fins are integrated into the gearbox to provide 

maximum cooling for the gearbox oil. The gearbox casing 

holds 50% more oil capacity than competitors, which allows 

more lubrication to be provided to critical points.

STEERING LEVERS

Dual control levers located in front of the operator's seat 

are provided for steering the trowel.
Push the left control lever forward and pull the right control 

lever backward and the trowel will rotate clockwise on 

approximately a center axis. Pull the left control lever 

backward and push the right control lever forward and 

the trowel will rotate counterclockwise. See Table 5 for 

a complete description on the control levers directional 

positioning.

CONSTANT VELOCITY JOINTS (CV-JOINTS)

Constant velocity joints insure the efficient transfer of power 

to the drive shaft and maintain the timing of the gearboxes 

without any chance of slippage.

TRAINING

For training, please use the “"Training Checklist"” located 

in the front of this manual. This checklist is not intended 

to be a substitute for proper training but will provide an 

outline for an experienced operator to provide training to 

a new operator.

Summary of Contents for JTNSW20HTCSL

Page 1: ...T ALL TIMES To find the latest revision of this publication visit our website at www multiquip com Revision 1 3 24 16 Original Version PN 24407 MODELS JTNSW20HTCSL JTNSW24HTCSL RIDE ON POWER TROWELS H...

Page 2: ...ancer birth defects and other reproductive harm Someexamplesofthesechemicalsare Lead from lead based paints Crystalline silica from bricks Cement and other masonry products Arsenic and chromium from c...

Page 3: ...isease cancer birth defects or other 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 r...

Page 4: ...atory Warnings 3 Table Of Contents 4 Training Checklist 5 Daily Pre Operation Checklist 6 Safety Information 7 12 Specifications Dimensions 13 14 General Information 15 Components 16 17 Basic Engine 1...

Page 5: ...els 3 Fuel system refueling procedure 4 Operation of spray and lights 5 Operation of controls machine not running 6 Safety controls safety stop switch operation 7 Emergency stop procedures 8 Startup o...

Page 6: ...RIDE ONTROWEL OPERATION MANUAL REV 1 3 24 16 DAILY PRE OPERATION CHECKLIST Daily Pre Operation Checklist 1 Engine oil level 2 Condition of blades 3 Blade pitch operation 4 Safety stop switch operation...

Page 7: ...equipment will be referenced with hazard symbols which may appear throughout this manual in conjunction with safety messages Warning decals associated with the operation of this equipment are defined...

Page 8: ...NOT WARNING make sure handle is securely attached models make sure T Handle latch is locked engaged ALWAYS NEVER operate this equipment under the influence of drugs or alcohol ALWAYS clear the work ar...

Page 9: ...r around the trowel Make sure it is free of debris and objects DANGEROUS GAS FUMES NOTICE ALWAYS keep the machine in proper running condition Fix damage to machine and replace any broken parts immedia...

Page 10: ...k an explosion could occur WARNING ALWAYS wear safety glasses when handling the battery to avoid eye irritation The battery contains acids that can cause injury to the eyes and skin Use well insulated...

Page 11: ...fetyTowing Regulations before towing your trowel In order to reduce the possibility of an accident while transporting the trowel on public roads ALWAYS make sure the trailer that supports the trowel a...

Page 12: ...his equipment is over it is recommended that the trowel frame and all other metal parts be sent to a recycling center Metal recycling involves the collection of metal from discarded products and its t...

Page 13: ...2 52 132 D Width in cm 39 5 101 39 5 101 Weight lbs kgs Operating 616 279 618 280 Weight lbs kgs Shipping 836 380 838 380 Engine kW HP 15 5 kW 20 8 HP 3600 rpm 16 5 kW 22 1 HP 3600 rpm Fuel Tank gallo...

Page 14: ...aximum 10 ethanol See engine manual for further details Unleaded gasoline Octane rating of 86 or higher Maximum 10 ethanol See engine manual for further details Fuel Consumption 6 liters hr 3600 RPM 6...

Page 15: ...me of shipping Contact your nearest Multiquip Dealer if you need a replacement BLADES The blades of the trowel finish the concrete as they are swirled around the surface Blades are classified as combi...

Page 16: ...operations 6 Left Foot Riser Operator foot rest pedal 7 Spray Nozzle Spray nozzle for retardant 8 Right Foot Pedal Controls blade speed Slow blade speed is accomplished by slightly depressing the foot...

Page 17: ...ngine Air cooled 4 stroke overhead valve 2 cylinder Honda GX630 20 HP or GX690 24 HP gasoline engine 19 Right Side Spider Consists of trowel arms blades wear plate and thrust collar 20 EZ Mover Boss R...

Page 18: ...OFF positionstopsengineoperations 5 Hour Meter Indicates the number hours machine has been in use WARNING Engine components can generate extreme heat To prevent burns DO NOT touch these areas while th...

Page 19: ...se two knobs onto the tower crank levers NOTICE The new trowel cannot be placed into service until the setup installation instructions are completed NOTICE Some models are equipped with adjustable hei...

Page 20: ...ed inTable 4 CAUTION Failure to understand the operation of the trowel could resultinseveredamagetothemachineorpersonalinjury UPPER LIMIT LOWER LIMIT DIPSTICK OIL FILLER CAP NOTICE To prevent extensiv...

Page 21: ...has been completely wiped up and the area surrounding the engine is dry FUEL TANK FUEL CAP INSPECTION V BELT Visually examine the V belts Figure 9 and determine if they have any tiny cracks frayed ha...

Page 22: ...ensure the control handles foot pedal and control panel items can be comfortably accessed 2 When starting a cold engine pull the choke knob Figure 11 out to the closed position In warm weather or when...

Page 23: ...ring a large area 5 Try adjusting the pitch of the blades This can be done with the ride on trowel stopped or while the trowel is moving whatever feels comfortable Test the operation of optional equip...

Page 24: ...should be serviced by your service dealer unless you have the proper tools and are mechanically proficient Refer to the HONDA Shop Manual for service procedures 3 For commercial use log hours of oper...

Page 25: ...could allow unfiltered air into the engine causing premature wear and failure AIR CLEANER COVER OUTER FILTER FOAM INNER FILTER PAPER WING NUT LATCH TAB When performing any maintenance on the trowel o...

Page 26: ...the hook tabs onto the air cleaner cover CAUTION Wear protective equipment such as approved safety glasses or face shields and dust masks or respirators when cleaning air filters with compressed air...

Page 27: ...r the spark plug is seated tighten with a 5 8 inch spark plug wrench to compress the sealing washer 8 When installing a new spark plug tighten 1 2 turn after the spark plug seats to compress the washe...

Page 28: ...re 21 Drive Belt Guard Removal REMOVE DRIVE BELT GUARD REMOVE DRIVE BELT GUARD SCREWS 3 V BELTS 2 2 Once the belt guard has been removed visually inspect both drive belts Figure 22 for signs of damage...

Page 29: ...ARE DRIVE BELT HOLDER SPARE DRIVE BELT HOLDER WELDED BLIND NUT 2 FLAT WASHER 2 LOCK WASHER 2 SCREW 2 7 Ensure all remnants of old drive belt have been removed from the sheaves grooves of the clutch an...

Page 30: ...guard onto frame Secure with bolts 3 and associated hardware BLADE PITCH Matching Blade Pitch for Both Sets of Blades Sometimes it may be necessary to match blade pitch between the two sets of blades...

Page 31: ...meswithallthehardwarenecessary to properly accomplish this maintenance and instructions on how to utilize this tool If a trowel arm adjustment fixture is not available and immediate adjustment is nece...

Page 32: ...any concrete off the trowel with water be careful not to spray a hot engine or muffler An old paint brush or broom may help loosen any concrete that has started to harden Trowel Arm Adjustment Procedu...

Page 33: ...e the trowel arm from the spider plate Figure 32 Removing Zerk Grease Fitting 3 Should the trowel arm inserts bronze bushing come out with the trowel arm remove the bushing from the trowel arm and set...

Page 34: ...se a feeler gauge of 005 0 127 mm Each section should have the same clearance between the round of the trowel arm shaft and the test surface 4 If the trowel arm is found to be uneven or bent replace t...

Page 35: ...Lever Fixture Arm Adjustment Bolt Adjustment Bolt Trowel Arm Adjustment Fixture Locking Bolts Shim Distance 010 in Reassembly 1 Clean and examine the upper lower wear plates and thrust collar Examine...

Page 36: ...hine is put back into operation WARNING Lifting Crush Hazard DO NOT lift trowel with pansattached WARNING ALWAYS install pans either on the work area or on an area that is next to and level with the w...

Page 37: ...PANEL HARNESS P N 23661 MATES WITH SPRAY KIT HARNESS P N 23722 J1 LIGHT KIT HARNESS P N 23721 J2 AND MAIN RELAY CONNECTOR P1 2 1 D SEAT SWITCH F G LEFT FRONT LIGHT RIGHT FRONT LIGHT I SPRAY SWITCH SPR...

Page 38: ...B P1 20 AMP CHARGE COIL GR G GRN G GRN BU BLUE CHASSIS GND M CHASSIS GND BATTERY POSITIVE NEGATIVE CHASSIS GND B W 12VDC K1 MAIN RELAY COIL 30 AMP FUSE W B Y BLK YEL Y YEL 12VDC 12VDC T4 GR GR GR NC B...

Page 39: ...TCH SPRAY PUMP MOTOR 2 GND 8 17 W1B W2B P J1 2 1 P1 2 1 YEL BLK SPRAY KIT HARNESS P N 24232 MAIN PANEL HARNESS P N 23661 BLK NC SEAT HARNESS P N 24230 BLK 3 3 2 1 1 2 W10A W11A W2A YELLOW GREEN 1 25 M...

Page 40: ...rk plug ON OFF switch is shorted Check switch wiring replace switch Ignition coil defective Replace ignition coil Improper spark gap points dirty Set correct spark gap and clean points Condenser insul...

Page 41: ...r clogs Recoil starter malfunctions if applicable Recoil mechanism clogged with dust and dirt Clean recoil assembly with soap and water Spiral spring loose Replace spiral spring Starter malfunctions L...

Page 42: ...ight adjustment of the trowel arms contact Parts Department Bent trowel arms Check the spider assembly for bent trowel arms If one of the arms is even slightly bent replace it immediately Trowel arm b...

Page 43: ...linkage found at the base of the handle Contact your MQ field service manager for instructions Worn components Check for wear of steering bearings and linkage components Replace if necessary Operatin...

Page 44: ...PAGE 44 JTNSW20 24HTCSL SERIES RIDE ONTROWEL OPERATION MANUAL REV 1 3 24 16 NOTES...

Page 45: ...PAGE 45 JTNSW20 24HTCSL SERIES RIDE ONTROWEL OPERATION MANUAL REV 1 3 24 16...

Page 46: ...this publication were in effect at the time of approval for printing Illustrations descriptions references and technical data contained in this document are for guidance only and may not be considered...

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