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MODEL HHXDF4-DF5 RIDE-ON TROWEL (Kubota WG972 Dual Fuel Gasoline/Propane Engine) Revision #5 (08/30/19) To find the latest revision of this publication or associated parts manual, visit our website at: www.multiquip.com THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES. PN: 32651...
SILICOSIS/RESPIRATORY WARNINGS WARNING WARNING SILICOSIS WARNING RESPIRATORY HAZARDS Grinding/cutting/drilling of masonry, concrete, metal and Grinding/cutting/drilling of masonry, concrete, metal and other materials with silica in their composition may give other materials can generate dust, mists and fumes off dust or mists containing crystalline silica. Silica is a containing chemicals known to cause serious or fatal basic component of sand, quartz, brick clay, granite and injury or illness, such as respiratory disease, cancer,...
TRAINING CHECKLIST This checklist lists some of the minimum requirements for machine maintenance and operation. Please feel free to detach it and make copies. Use this checklist whenever a new operator is to be trained or it can be used as a review for more experienced operators.
SAFETY INFORMATION Do not operate or service the equipment before reading Potential hazards associated with the operation of this the entire manual. Safety precautions should be followed equipment will be referenced with hazard symbols which at all times when operating this equipment. may appear throughout this manual in conjunction with Failure to read and understand the safety safety messages.
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SAFETY INFORMATION DECALS Decals associated with the operation of this equipment are defi ned below. DECAL DEFINITION DECAL DEFINITION DANGER DANGER Rotating Blade Hazard Flying Objects Hazard Keep hands, fingers, and feet clear To avoid injury, DO NOT disassemble of engine fan blades and guard rings. spring cylinders without qualified service personnel.
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SAFETY INFORMATION DECAL DEFINITION DECAL DEFINITION PROPANE/LPG TANK LUBRICATION POINT The engine used in this equipment Indicates that lubrication is required where can run on LPG/propane fuel. this icon is displayed. P/N 23809 UNLEADED GASOLINE DANGER The engine used in this equipment Fire Hazard can run on unleaded gasoline.
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SAFETY INFORMATION GENERAL SAFETY NEVER use accessories or attachments that are not recommended by Multiquip for this equipment. Damage CAUTION to the equipment and/or injury to user may result. NEVER operate this equipment without proper protective ALWAYS know the location of the nearest clothing, shatterproof glasses, respiratory protection, fi re extinguisher.
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SAFETY INFORMATION ENGINE SAFETY WARNING If applicable, NEVER use your hand to fi nd WARNING hydraulic leaks. Use a piece of wood or DO NOT place hands or fingers inside engine cardboard. Hydraulic fl uid injected into the compartment when engine is running.
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SAFETY INFORMATION FUEL SAFETY (GASOLINE) ALWAYS fi ll propane tank in a well-ventilated area, away from sparks and open fl ames. LP Gas is odourless and DANGER invisible. DO NOT start the engine near spilled fuel or combustible ...
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SAFETY INFORMATION BATTERY SAFETY TRANSPORTING SAFETY DANGER CAUTION DO NOT drop the battery. There is a possibility that the NEVER allow any person or animal to battery will explode. stand underneath the equipment while lifting. DO NOT expose the battery to open fl ames, sparks, cigarettes, etc.
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SAFETY INFORMATION TOWING SAFETY Avoid sharp turns to prevent rolling. Trailer should be adjusted to a level position at all times CAUTION when towing. Check with your local county or state safety Raise and lock trailer wheel stand in up position when towing regulations, in addition to meeting towing.
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SAFETY INFORMATION EMISSIONS INFORMATION (GASOLINE) NOTICE The engine used in this equipment is a dual fuel engine (gasoline/LPG). The gasoline side of the engine has been designed to reduce harmful levels of carbon monoxide (CO), hydrocarbons (HC) and nitrogen oxides (NOx) contained in gasoline exhaust emissions.
Failure to comply with these lifting the parts manual included with your trowel for part numbers, instructions may result in sling failure and order from your Multiquip parts dealer or importer. and severe personal injury or death. Only qualified personnel with proper training should perform this procedure.
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LIFTING AND TRANSPORTING The Occupational Safety and Health Administration (OSHA) Regulation 29 CFR Part 1926.251 (e)(8)—Removal from service requires that the slings be inspected prior to each use, and removed from service immediately if any of the following conditions are found: ...
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LIFTING AND TRANSPORTING LIFTING PROCEDURE 2. Insert forklift forks through the loops at the ends of the lifting slings (Figure 2). Keep the slings as close The correct lifting slings (Figure 1) have been supplied with to vertical as possible. If the choke angle (Figure 3) is your trowel, in accordance to its weight per Occupational 120 degrees or less, the lifting strength of the slings Safety and Health Administration (OSHA) Regulation...
SPECIFICATIONS (ENGINE) Table 4. Engine Specifications Engine Type Vertical, water-cooled, 4-cycle, dual fuel (gasoline/LPG) Number of Cylinders Bore × Stroke 2.93 × 2.90 in. (74.5 × 73.6 mm) Total Displacement 0.962 liters (58.7 in. Intake System Naturally aspirated 17.5 kW/3,600 min (rpm) ISO Net Continuous 23.5 kW/3,600 min...
(DF) engine. Refer to the engine owner’s manual included with the trowel for specific instructions regarding engine operation. If the original manual is lost or damaged, contact your nearest Multiquip dealer for a replacement. PAGE 23 — HHXDF4-DF5 RIDE-ON TROWEL • OPERATION MANUAL — REV. #5 (08/30/19)
COMPONENTS (TROWEL) Figure 5. HHXDF4-DF5 Front 1. Seat — Place for the operator to sit. The engine will 9. Lights — Six 12-volt LEDs (four in front, two in rear) not start and the blades will not rotate unless the provide better visibility when working indoors.
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COMPONENTS (TROWEL) Figure 6. HHXDF4-DF5 Rear 23. Engine Status Gauge — Multi-cluster gauge indicates 17. Rear Guard — Remove to access the right side the following: of the engine and internal components for service and maintenance. Low pressure oil LED ...
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COMPONENTS (TROWEL) 31 34 Figure 7. HHXDF4-DF5 29. Foot Pedal — Controls blade speed. Slow blade 35. Hydraulic Pressure Test Port — Connect a test speed is obtained by slightly depressing the foot pedal. gauge to the test port to determine hydraulic pressure Maximum blade speed is obtained by fully depressing during operation.
COMPONENTS (ENGINE) Figure 8. Engine Components 1. Radiator/FIller Cap — Holds coolant/water necessary 12. Oil Drain Plug — Remove to drain crankcase to keep the engine at a safe operating temperature. oil. Always dispose of used oil and oil filters in an Remove this cap to add water/antifreeze when cool.
RIGHT SEAT FRAME CONTROLS AND INDICATORS 6. Engine Status Gauge — Multi-cluster gauge indicates the following: a. Low Oil Pressure LED — When ON, indicates that the oil pressure has P/N 32575 dropped to 7 psi (48.3 kPa). This condition will cause the engine to shut down.
INSPECTION There is a Daily Pre-Operation Checklist at the front of 4. If oil is below the ‘Add Engine Oil’ line, add oil up to this manual. Make copies of this checklist and use it on a the upper limit on the dipstick. Allow enough time for daily basis.
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INSPECTION HYDRAULIC OIL HYDRAULIC FLUID FILTER 1. Check the hydraulic oil condition through the hydraulic To determine if the hydraulic fluid filter needs to be changed, oil reservoir (Figure 12) next to the battery. Replace the view the sight gauge above the hydraulic filter located hydraulic oil if dirty or if bubbles are present.
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INSPECTION Propane Tank Removal NOTICE 1. Place the trowel on secure, level ground with the engine Using lower than 87 octane gasoline may cause heavy turned OFF. pinging resulting in engine damage. 2. CLOSE the shutoff valve on the propane tank 4.
SETUP The purpose of this section is to assist the user in setting up a new trowel. If your trowel is already assembled (seat, handles, knobs and battery), this section can be skipped. BATTERY SETUP CAUTION Use all safety precautions specified by the battery manufacturer when working with the battery.
OPERATION STARTING THE ENGINE 2. Insert the ignition key into the ignition switch (Figure 18). OFF ON NOTICE (Unused) This trowel is equipped with a seat switch. The trowel will not start unless an operator is sitting in the seat. WARNING START NEVER disable or disconnect the seat switch.
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OPERATION 7. To select LPG mode, press down on the right side of 9. Keep your foot OFF the foot pedal. Adjust the choke if the fuel selection rocker switch.The GREEN light is the engine is cold, but in all circumstances, start the ON (Figure 20).
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OPERATION TESTING THE SEAT SWITCH 2. With your right foot, quickly depress the foot pedal halfway. Notice that the trowel begins to move in a WARNING forward direction. Return both joystick controls to their neutral position to stop forward movement, then remove NEVER disable or disconnect the seat switch.
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OPERATION 5. Try adjusting the pitch of the blades. This can be done 1. Lift the pitch adjustment handle on either side. with the trowel stopped or while the trowel is moving, Once lifted, that side is now disconnected from the whichever feels more comfortable.
MAINTENANCE Table 7. Engine Maintenance Schedule Every After Every 50 Every 100 Every 200 Every 1000 Every Item Daily Every Year 1000 Hours Hours Hours Hours 2 Years Hours Checking engine oil level Checking replenishing coolant Checking air cleaner necessary element Checking LPG tank...
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MAINTENANCE Table 8. Engine Maintenance Schedule (Continued) Every After Every 50 Every 100 Every 200 Every Every 1000 Every Item Daily 1000 Hours Hours Hours Year Hours 2 Years Hours Cleaning spark plug Checking fuel filter Check fan belt tension damage Changing engine...
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MAINTENANCE Table 9. Engine Maintenance Schedule (Continued) Every After Every 50 Every 100 Every 200 Every Every 1000 Every Item Daily 1000 Hours Hours Hours Year Hours 2 Years Hours Cleaning fuel tank inside Cleaning water jacket and radiator interior Replacing spark plugs...
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MAINTENANCE Table 10. Engine Maintenance Schedule (Continued) Every After Every 50 Every 100 Every 200 Every Every 1000 Every Item Daily 1000 Hours Hours Hours Year Hours 2 Years Hours Replacing LPG fuel hose and clamp bands Replacing coolant hose of vaporizer Replacing vacuum...
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MAINTENANCE MAINTENANCE Yearly (500–600 Hours) When performing any maintenance on the trowel or engine, 1. Check the arm bushings, thrust collar bushings, shaft follow all safety messages and rules for safe operation seals, and belts. Replace if necessary. stated at the beginning of this manual. See the engine 2.
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MAINTENANCE 3. Determine if engine oil is low. Oil should be between WARNING the upper limit and lower limit (add oil) lines. DO NOT remove the drive belt guard 4. If oil is below the ‘Add Engine Oil’ line, add oil up cover until the muffler has cooled.
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MAINTENANCE FUEL FILTER 1. Remove the oil filler cap while draining the oil to allow the engine to drain easily. Replace the engine fuel filter (Figure 30) every year. Refer 2. Remove the drain plug to drain the oil. to the engine manual for specific details on how to perform this operation.
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MAINTENANCE Cleaning Inside the Fuel Tank 8. When installing a new spark plug, tighten 1/2 turn after the spark plug seats to compress the washer. If necessary, drain the fuel inside the fuel tank completely. 9. When reinstalling the original spark plug, tighten Use a spray washer to wash out any deposits or debris that 1/8–1/4 turn after the spark plug seats to compress have accumulated inside the tank.
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MAINTENANCE HYDRAULIC OIL FILTER AIR CLEANER (DAILY) 1. Change the hydraulic oil and filters (Figure 32) after The Kubota WG972 engine is equipped with a replaceable, the first 100 hours of use, then after every 250 hours. high-density, paper air cleaner element. Check the air Use 10-micron absolute synthetic media filters.
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MAINTENANCE RADIATOR/COOLING SYSTEM RADIATOR CLEANING 1. Blow off dirt and dust from the fins and radiator CAUTION with 28 psi (193 kPa) or less of compressed air HOT coolant can cause severe burns. (Figure 34). Be careful to not damage the fins with the NEVER remove the cap while the compressed air.
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MAINTENANCE OIL/WATER SEPARATOR TROWEL LUBRICATION Drain water from the bottom of the fuel filter by loosening the Regular lubrication is required to maintain your trowel drain plug and allowing the water to drain out. Refer to your in optimal working condition. Schedule maintenance engine manual for specific details to perform this operation.
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MAINTENANCE Pillow Block Bearings (Daily) 3. Lubricate the Zerk grease fitting with 1–1½ shots of multipurpose grade grease. Replace the Zerk grease Perform the following lubrication procedure after every fitting cap when finished. 8 hours of use. 4. Repeat steps 1–3 for the remaining grease fittings on 1.
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MAINTENANCE Pitch Adjustment Levers (Monthly) Pitch Tower (Every 6 Months) Perform the following lubrication procedure once a month. Perform the following lubrication procedure once every 6 months. 1. Locate the Zerk grease fitting next to the knob on either pitch adjustment lever (Figure 38). Remove the Zerk 1.
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MAINTENANCE BLADE PITCH ADJUSTMENT A better way to determine which blades need adjustment is to place the machine on a known FLAT surface Maintenance adjustment of blade pitch is made by adjusting (e.g. a steel plate) and pitch the blades as flat as possible. a bolt (Figure 40) on the arm of the trowel blade finger.
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MAINTENANCE Steering Adjustment Figure 41 illustrates incorrect alignment, worn spider bushings, or bent trowel arms. Check that the adjustment The steering assist adjustment should be performed only bolt is barely touching (0.10" max. clearance) the lower by qualified service technicians. For HHX-G5 steering wear plate.
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MAINTENANCE Spider Removal Trowel Blade Removal 1. Locate the cone point square head set screw and Remove the trowel blades by removing the three hex head attached jam nut found on the side of the spider bolts (Figure 44) from the trowel arm. Set the blades aside. assembly (Figure 43).
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MAINTENANCE Checking Trowel Arm Straightness 2. Each trowel arm is held in place at the spider plate by a hex head bolt (Zerk grease fitting) and a roll pin. Trowel arms can be damaged by rough handling (e.g. Remove both the hex head bolt and the roll pin from dropping the trowel on the pad), or by striking exposed the spider plate (Figure 46).
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MAINTENANCE 3. Check the clearance between the round shaft and the 2. Make sure the fixture arm is positioned correctly (up test surface as one of the flat hex sections of the arm or down) for the trowel arm rotation. For trowel arms with CLOCKWISE blade rotation, place the fixture rests on the test surface.
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MAINTENANCE 6. Loosen the locking nut on the trowel arm lever, then WARNING turn the trowel arm adjusting bolt until it barely touches Lifting/crush hazard. NEVER lift the trowel (.010") the fixture adjusting bolt. with float pans attached. 7. Once the correct adjustment is made, tighten the lock nut on the trowel arm to lock it in place.
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MAINTENANCE Installing Float Pans with Latch Pins Many hydraulic problems are a result of low fluid levels. Before checking any other possibilities, make sure the Refer to Figure 54 when installing float pans using latch pins. hydraulic fluid is at the proper level in the hydraulic fluid tank. Checking the Steering Pressure CAUTION This procedure requires two or more people to...
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MAINTENANCE Interpreting the Pressure Reading 5. Remove the pressure gauge and reinstall the access grille. NOTICE DECOMMISSIONING THE TROWEL Charge/steering pressure must NEVER exceed 300 psi nor fall below 150 psi. Pressure that is too high may Decommissioning is a controlled process used to safely result in pressure leaks while pressure that is too low retire a piece of equipment that is no longer serviceable.
TROUBLESHOOTING Troubleshooting (Ride-On Trowel) Symptom Possible Problem Solution Make sure that the stop switch is functioning when the Stop switch malfunction? operator is seated. Replace switch if necessary. Look at the fuel system. Make sure there is fuel being Engine running rough or not at all. Fuel? supplied to the engine.
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TROUBLESHOOTING Troubleshooting (Ride-On Trowel) - continued Symptom Possible Problem Solution Check all electrical connections in the lighting circuit. Wiring? Verify wiring is in good condition with no shorts. Replace defective wiring or components immediately. If +12VDC is present at light fi xture connector when light Lights? switch is activated and light does not turn on, replace Lights (optional) not working.
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TROUBLESHOOTING Troubleshooting (Engine) Symptom Possible Problem Solution Spark plug bridging? Check gap, insulation or replace spark plug. Carbon deposit on spark plug? Clean or replace spark plug. Short circuit due to defi cient spark plug Check spark plug insulation, replace if worn. insulation? Improper spark plug gap? Set to proper gap.
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TROUBLESHOOTING Troubleshooting (Engine) - continued Symptom Possible Problem Solution Air cleaner dirty? Clean or replace air cleaner. Improper level in carburetor? Check fl oat adjustment, rebuild carburetor. Weak in power, compression is proper and does not misfi re. Defective spark plug? Clean or replace spark plug.
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TROUBLESHOOTING Table 13. Troubleshooting (General) Symptom Probable Cause Solution Check engine to find the problem and Engine jammed? repair it. Battery discharged? Charge. Engine will not turn over. Starter malfunctioning? Repair or replace. Wires disconnected? Repair and replace. Increased resistance of moving parts? Repair or replace. Engine turns over slowly Excessively high viscosity engine oil but does not start.
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TROUBLESHOOTING Table 14. Troubleshooting (General) (Continued) Symptom Probable Cause Solution Improper valve clearance? Adjust. Spark knock due to low-octane fuel Use higher-octane fuel and Engine noise. or carbon? remove carbon. Rattles from loosely mounted Retighten. external components? Defective ignition coil? Replace.
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TROUBLESHOOTING Table 15. Troubleshooting (Gasoline and LPG Fuel) Fuel Type Symptom Probable Cause Solution No fuel? Replenish fuel. Check fuel line and carburetor Defective fuel system? Engine turns over at and repair. normal speed but does Over choked? Clean spark plug. not start.
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