Operation Manual SERIES MODEL HHXG5 RIDE-ON TROWEL (B & S VANGUARD DM 950 G GASOLINE ENGINE) Revision #1 (10/25/10) To find the latest revision of this publication, visit our website at: www.multiquip.com THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
Proposition 65 Warning Engine exhaust and some of its constituents, and some dust created by power sanding, sawing, grinding, drillingandotherconstructionactivities contains chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. Some examples of these chemicals are: Leadfromlead-basedpaints. Crystalline silicafrombricks. Cementandothermasonryproducts. Arsenicandchromiumfromchemically treatedlumber.
Silicosis/Respiratory Warnings WARNING WARNING SILICOSIS WARNING RESPIRATORY HAZARDS Grinding/cutting/drilling of masonry, concrete, metal and other materials with silica in their composition may give off dust or mists containing crystalline silica. Silica is a basic component of sand, quartz, brick clay, granite and numerous other minerals and rocks. Repeated and/or substantial inhalation of airborne crystalline silica can cause serious or fatal respiratory diseases, including silicosis.
Table of Contents HHXG5 Ride-On Trowel Proposition 65 Warning............................................ 2 Silicosis/Respiratory Warnings................................. 3 Table Of Contents..................................................... 4 Training Checklist...................................................... 6 Daily Pre-Operation Checklist.................................. 7 Safety Information............................................... 8-13 Dimensions/Specifications (Trowel).................
notes HHXG5 RIDE-ON TROWEL • operation manual — rev.
training checklist TRAINING CHECKLIST This checklist will 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. Training Checklist No, Description 1 Read operation manual completely. 2 Machine layout, location of components, checking of engine and hydraulic oil levels. 3 Fuel system, refueling procedure.
daily pre-operation checklist Daily pre-Operation Checklist 1 Engine oil level 2 Hydraulic oil level 3 Radiator coolant level 4 Condition of blades 5 Blade pitch operation 6 Safety stop switch operation 7 Steering control operation HHXG5 RIDE-ON TROWEL • operation manual — rev.
Safety Information Do not operate or service the equipment before reading the entire manual. Safety precautions should be followed at all times when operating this equipment. Failure to read and understand the safety messages and operating instructions could result in injury to yourself and others. Potential hazards associated with the operation of this equipment will be referenced with hazard symbols which may appear throughout this manual in conjunction with safety messages.
Safety Information geNeRaL SaFeTY CauTION NeveR operate this equipment without proper protective clothing, shatterproof glasses, respiratory protection, hearing protection, steel-toed boots and other protective devices required by the job or city and state regulations. Avoid wearing jewelry or loose fitting clothes that may snag on the controls or moving parts as this can cause serious injury. NeveR operate this equipment when not feeling well due to fatigue, illness or when under medication.
Safety Information TROWeL SaFeTY NOTICE aLWaYS keep the machine in proper running condition. DaNgeR Engine fuel exhaust gases contain poisonous carbon monoxide. 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 free flow of the air is restricted.
Safety Information BaTTeRY SaFeTY NOTICE NeveR run engine without an air filter or with a dirty air filter. Severe engine damage may occur. Service air filter frequently to prevent engine malfunction. NeveR tamper with the factory settings of the engine or engine governor. Damage to the engine or equipment can result if operating in speed ranges above the maximum allowable. FueL SaFeTY DaNgeR DaNgeR DO NOT drop the battery. There is a possibility that the battery will explode.
Safety Information TRaNSpORTINg SaFeTY CauTION NeveR allow any person or animal to stand underneath the equipment while lifting. Ride-on trowels are very heavy and awkward to move around. Use proper heavy lifting procedures and DO NOT attempt to lift the trowel by the guard rings. NOTICE The easiest way to lift the trowel is to utilize the lift loops that are welded to the frame. These lift loops are located to the left and right sides of the operator’s seat.
Safety Information Trailer should be adjusted to a level position at all times when towing. Raise and lock trailer wheel stand in up position when towing. Place chock blocks underneath wheel to prevent rolling while parked. Place support blocks underneath the trailer’s bumper to prevent tipping while parked. Use the trailer’s swivel jack to adjust the trailer height to a level position while parked. eNvIRONmeNTaL SaFeTY NOTICE Dispose of hazardous waste properly.
DIMENSIONS/SPECIFICATIONS (TROWEL) Figure 1. HHX Dimensions Table 1. HHX Specifications SPECIFICATION PARAMETER HHXG5 (VANGUARD) A–Length – in. (cm) 98.00 (249) B–Width – in. (cm) 50.0 (127) C–Height – in. (cm) 54.0 (137.2) Weight – lbs. (kgs.) Operating 1,397 (634) Weight – lbs. (kgs.) Shipping 1,472 (668) 2 tbd 3 Vibration – ft/s2 (m/ s2) tbd Blade Tip Speed – FPM (m/s) 1425 (7.24) Fuel Tank – gallons (liters) 9 (34) Rotor – RPM 40 to 170 Path Width – in.
SPECIFICATIONS (ENGINE) Table 2. HHXG5 Engine Specifications Model Vanguard DM950G Type Gasoline Cylinders 3 Displacement 58.1 cu.in. (952 cc) 31 HP (23.1 kW) @3600 rpm Power (Maximum Output) Bore and Stroke 2.83 in. x 3.07 (72 mm x 78 mm) 70.0 Nm @ 2200 rpm Maximum Torque (Intermittent) Compression Ratio 8.7 : 1 Cooling System Fully jacketed water-cooled 3.2 qt. (3 liters) Engine Oil Capacity 3.5 qt. (3.
GENERAL INFORMATION HHX Ride-On Trowel Familarization Gearboxes The HHX is designed for the floating and finishing of concrete slabs. The HHX consist of two separate gearbox assemblies that are enclosed in rugged cast aluminum gear cases. 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.
CONTROLS AND INDICATORS 1 2 13 6 5 4 12 4 35 8 35 7 3 11 10 9 9 15 14 16 Figure 2. HHXG5 Controls and Indicators (Front) 1. Seat — Place for operator to sit. Engine will not start unless operator is seated. Seat is adjustable, fore and aft for operator comfort. 8. Ignition Switch — With key inserted turn clockwise to start engine. 2. Steering Control Joystick (right side) — Allows the unit to move in either a forward, reverse left or right direction. See page 24 for additional Information.
CONTROLS AND INDICATORS 23 19 25 26 27 18 19 35 35 28 22 29 17 21 20 30 24 Figure 3. HHXG5 Controls and Indicators (Rear) 17. Rear Guard — Remove to access right side of engine and internal components for service and maintenance. 18. Safety-Stop Switch — Shuts down engine when operator is not sitting in seat . 19. Lift Points — Located on both the left and right sides of the main frame. Used when the trowel must be lifted onto a concrete slab. 20.
CONTROLS AND INDICATORS 31 33 35 34 23 39 41 35 36 37 42 32 38 43 40 44 35 Figure 4. HHXG5 Controls and Indicators (Clamshell Open) 31. Radiator/Filler Cap — Holds coolant or water necessary to keep engine at a safe operating temperature. Remove this cap to add water or antifreeze. 38. Battery — Provides +12V DC power to the electrical system 32.
ENGINE COMPONENTS (GASOLINE) Figure 5. Engine Components (Gasoline Engine) The following refer to the basic engine components for reference (Figure 5). Refer to the manufacturer's engine manual for instructions and details of operation and servicing. The engine shown above is a Briggs & Stratton Vanguard GASOLINE engine. 1. Thermostat — Regulates the temperature of the engine coolant. 2. Oil Filler Cap — Remove to add engine oil. linked to the accelerator system. 10.
SETUP Trowel Setup Instructions The purpose of this section is to assist the user in the setting up of a NEW trowel. If your trowel is already assembled (seats, handles, knobs and battery, then this section can be skipped. DANGER Use all safety precautions specified by the battery manufacturer when working with the battery. Flammable, explosive gas. (produces hydrogen gas while charging or during operation). Keep area around battery well ventilated and keep from any fire source.
INSPECTION This section is intended to assist the operator with the initial start-up of the HHX. It is extremely important that this section be read carefully before attempting to use the trowel in the field. the gearbox, and refill with ISO 220 A GMA GR 5 EP oil. FILL PLUG DO NOT use your ride-on power trowel until this section is thoroughly understood. WARNING Failure to understand the operation of the HHX could result in severe damage to the trowel or personal injury.
OPERATION STARTING THE ENGINE 1. Place one foot on the trowel's platform, grab ahold of any part of the frame (NOT THE JOYSTICKS), lift yourself onto the trowel, then sit down in the operator's seat. NOTICE The HHX is equipped with a safety stop switch that will not allow the engine to start unless an operator is sitting in the operator’s seat. The weight of an operator depresses an electrical switch, which allows the engine to start. 2. The foot pedal (Figure 9) controls blade and engine speed.
OPERATION 9. Repeat this section a few times to get fully acquainted with the engine starting procedure. 10. Let the engine idle for 3-5 minutes. If choke is applied, push the choke to the open position as soon as the engine will run smoothly. Steering Two joysticks (Figure 11) located to the left and right of the operator’s seat provide directional control for the HHX Ride-On Power Trowel. Table 3 illustrates the various directional positions of the joysticks and their effect on the ride-on trowel.
OPERATION Blade Pitch Sometimes it may be necessary to match blade pitch between the two sets of blades. There are some signs that this may be necessary. For example, the differences in pitch could cause a noticeable difference in finish quality between the two sets of blades. Or, the difference in blade pitch could make the machine difficult to control. This is due to the surface area in contact with the concrete (the blade set with the greater contact area tends to stick to the concrete more).
mAINTENANCE MAINTENANCE When performing any maintenance on the trowel or engine, follow all safety messages and rules for safe operation stated at the beginning of this manual. See the engine manual supplied with your machine for appropriate engine maintenance schedule and troubleshooting guide for problems. At the front of the book there is a “Daily Pre-Operation Checklist”. Make copies of this checklist and use it on a daily basis. . WARNING Accidental starts can cause severe injury or death. 4.
mAINTENANCE Air Cleaner (Daily) The Briggs and Stratton Vanguard engine is equipped with a replaceable, high-density paper air cleaner element. Check the air cleaner daily or before starting the engine. Check for and correct heavy buildup of dirt and debris along with loose or damaged components, (Figure 13). 2. Remove the oil filler cap and fill engine crankcase with recommended type oil as listed in Table 4. Fill to the upper limit of dipstick. 3. Crankcase oil capacity with oil filter replacement is 3.
mAINTENANCE Oil/Water Separator Drain water from the bottom of the fuel filter by loosening the drain plug and allowing the water to drain out. Refer to your engine manual for specific details to perform this operation. Oil And Fuel Lines 1. Check the oil and fuel lines and connections regularly for leaks or damage. Repair or replace as necessary. 2. Replace the oil and fuel lines every two years to maintain the line's performance and flexibility.
mAINTENANCE (old style clutch) NOTICE This section is intended to aid users in the maintenance of drive assemblies with an old style Comet clutch. A 3/4 X 1 X 3-1/4 inch wooden block may assist in helping to hold the lower pulley apart during removal and replacement of belt). Checking The Drive Belt The drive belt needs to be changed as soon as it begins to show signs of wear. DO NOT reuse a belt under any circumstances.
mAINTENANCE (old style clutch) Upper Pulley Drive Belt Lower Pulley Fixed Face 1. If necessary, refer to Removing Drive Belt Instructions. Ensure all remnants of old belt have been removed from pulleys. 2. Remove the 2 bolts that secure the drive belt carrier. (Figure 20) This will allow free movement of the belt for installation. Take care with to not contaminate the relplacement belt with grease or dirt. 3. Remove the 5/8 Bolt from the Upper Drive Pulley.
mAINTENANCE (old style clutch) Spare Drive Belt Replacement To replace a spare drive belt, be prepared to disconnect the CV-joint from the left-side gearbox. See Figure 21. NOTICE It will be necessary to disconnect the CV-Joint from the left-side gearbox coupler. This means the removal of the three screws that secure the CV-Joint to the gearbox. 1. Place the trowel on suitable supports and observe all safety precautions. 2. Remove Left-side End Grate and open Left "Clamshell" 3.
mAINTENANCE (old style clutch) How It Works (Figure 25) CENTRIFUGAL FORCE LOW OUTPUT SPEED DRIVE PULLEY DISTANCE MOVEABLE FACE TRAVELS MOVEABLE FACE IS CONTROLLED BY A SPRING AND BELT TENSION Condition A: • Engine Idling • Drive Pulley: Small • Driven Pulley: Large • Belt: Loose and Stationary LOW ENGINE RPM DRIVEN PULLEY Condition B: • Engine Accelerating MOVABLE FACE IS CONTROLLED BY ROLLER WEIGHT ARMS AND SPRINGS HIGH OUTPUT SPEED DRIVE PULLEY • Drive Pulley: Small But Increasing • Driven
mAINTENANCE (old style clutch) Clutch This clutch system provides a high pulley ratio (a low gearso to speak) to start out and a low pulley ratio ( a high gear- so to speak) for a high speed operation, with infinite variation between the two. This means that it will not be necessary to give full throttle in order to "break the blades/pans loose". The machine can slowly be brought up to speed. The torque sensitive pulley (Figure 27) utilizes a spring and cam bracket.
mAINTENANCE (new style clutch) NOTICE This section is intended to aid users in the maintenance of drive assemblies with a new style Multi-Clutch. The clutch will not shift correctly if the belt width is below 1.14". Measure the CVT belt every 100 hours of use to make sure it is within the specified tolerance. See Figure 28. CVT BELT Checking The Drive Belt The drive belt needs to be changed as soon as it begins to show signs of wear. DO NOT reuse a belt under any circumstances.
mAINTENANCE (new style clutch) 2. Disconnect the left-side CV Axle from the left-side gearbox and the lower drive pulley coupler. See Figure 30. CLUTCH UPPER DRIVE PULLEY/CLUTCH UPPER PULLEY LOWER DRIVE PULLEY CV AXLE CVT BELT GEARBOX COUPLER COUPLER LOWER PULLEY Figure 32. Upper Pulley Belt Installation 3. Reconnect left-side CV Axle Assembly. to the left side gearbox and lower drive pulley coupler. See Figure 30. LEFT-SIDE GEARBOX Figure 30. Remove Left-Side CV Axle 3.
mAINTENANCE (new style clutch) How it works The Multi-Clutch functions much like a standard CVT system. As the engine RPM’s increase, the drive or primary clutch closes, forcing the belt to ride outwards on the drive sheaves. The closing of the drive clutch also forces the belt to open the driven or secondary sheaves.The opening and closing of these sheaves creates a ratio variation… hence CVT or Continuously Variable Transmission.
mAINTENANCE (TROWEL) Blade Pitch OPERATING POSITION Matching Blade Pitch for Both Sets of Blades DISENGAGED (ONE SIDE) Sometimes it may be necessary to match blade pitch between the two sets of blades. There are some signs that this may be necessary. For example, the differences in pitch could cause a noticeable difference in finish quality between the two sets of blades, or, the difference in blade pitch could make the machine difficult to control.
mAINTENANCE (TROWEL) Look at the machine while it is running, do the guard rings “rock up and down” relative to the ground? Do the pitch control towers rock back and forth? Spider Plate too high. Conversely, adjusting bolts that are too low will not allow the blades to be pitched high enough for finishing operations.
mAINTENANCE Trowel Arm Adjustment Use the following procedure to check and adjust trowel arms, and check for worn or damaged components when it becomes apparent that the trowel is finishing poorly or in need of routine maintenance. Figure 36 illustrates the "correct alignment " for a spider plate (as shipped from the factory). Trowel Arm Gearbox Mounting Bar Look for the following indications. Trowel arm alignment, worn spider bushings or bent trowel arms may the cause.
mAINTENANCE 2. Loosen the jam nut and cone point square head set screw. 3. Carefully lift the upper trowel assembly off of the spider assembly. A slight tap with a rubber mallet may be necessary to dislodge the spider from the main shaft of the gearbox. Spider Plate Trowel Blade Removal Roll Pin Remove the trowel blades by removing the three hex head bolts (Figure 38) from the trowel arm. Set blades aside. Trowel Arm Hex Head Bolt Lock Washer Hex Head Bolt (Zerk Fitting) Figure 40.
mAINTENANCE Checking Trowel Arm Straightness Trowel arms can be damaged by rough handling, (such as dropping the trowel on the pad), or by striking exposed plumbing, forms, or rebar while in operation. A bent trowel arm will not allow the trowel to operate in a smooth fluid rotation. If bent trowel arms are suspect, check for flatness as follows, refer to Figure 42 and Figure 43: Lever Mounting Slot (Left Arm Shown) Roll Pin Hole Blade Attachment Bolt Hole (1 of 3) Flat of D-Shaft (Top of Arm) 3.
mAINTENANCE Re-Assembly NOTICE Arms with CLOCK-WISE blade rotation use the fixture arm in the UP position (A in Figure 45). Arms with COUNTER CLOCK-WISE blade rotation use the fixture with the fixture arm in the DOWN position. (B in Figure 45). 3. Unscrew the locking bolts on the adjustment tool and place the trowel arm into the fixture channel as shown in Figure 46 A thin shim may be required to cover the blade holes on the trowel arm.
mAINTENANCE Refer to Figure 47 when installing pans onto finisher blades. Tie-Down Knob Tie-Down, Blade Checking Steering Pressure CAUTION This procedure will require two or more people. The trowel will need to be "run up" while remaining stationary or otherwise held in position. If a "hover" is difficult to maintain the trowel can be butted up to 2 or 3 stakes or to some other none-moveable items. 1.
mAINTENANCE 30 00 Steering Pressure Adjustment 20 00 1000 150 100 50 200 250 300 bar psi 4000 5000 WIKA Figure 48. Steering Pressure Check The left steering valve's factory setting is 230 PSI, however some operators may prefer a more responsive steering (higher pressure required; 300 PSI maximum) and some operators may prefer a "softer feel" (lower pressure required; not less than150 PSI) Figure 49.
decommissioning trowel Decommissioning Trowel/Components Decommissioning is a controlled process used to safely retire a piece of equipment that is no longer serviceable. If the equipment poses an unacceptable and unrepairable safety risk due to wear or damage or is no longer cost effective to maintain, (beyond life-cycle reliability) and is to be decommissioned, (demolition and dismantlement), the following procedure must take place: 1. Drain all fluids completely.
WIRING DIAGRAM (ENGINE) 1 2 RIGHT-SIDE RETARDANT SPRAY PUMP MOTOR RIGHT-SIDE RETARDANT SPRAY SWITCH 3 4 C LEFT-SIDE RETARDANT SPRAY PUMP MOTOR LEFT-SIDE RETARDANT SPRAY SWITCH PUMP MOTOR BLK RED PUMP MOTOR RIGHT FRONT LIGHT P14 2 2 1 1 5 BLK WHT DS1 RIGHT LIGHT F M F 1 2 P13 1 2 M A F BLK M F RED BLK RED D 1 2 1 2 P9 BLK RED M B P17 BLK 1 1 BLK WHT BLK 2 2 RED 1 1 GND 7 BLK WHT F DS3 LEFT FRONT LIGHT P18 RED 6 DS2 RIGHT REAR LIGHT E RED/YEL GN
WIRING DIAGRAM (ENGINE) 23 26 35 20 24 21 25 1 22 11 34 28 18 19 36 3 17 13 15 27 12 29 7 30 31 6 14 16 32 2 3133 10 5 4 CONNECTOR ORIENTATION (FRONT VIEW) 2 1 A B 1 2 4 1 5 2 I C D E 6 3 J RELAY ORIENTATION F G H 1 2 L 9 8 85 87 1 2 3 1 2 4 5 6 3 4 M N 87a 85 30 87a 87 30 86 86 K HHXG5 RIDE-ON TROWEL • operation manual — rev.
TROUBLESHOOTING Troubleshooting (Ride-On Trowel) Symptom Engine running rough or not at all. Safety stop switch not functioning. possible problem Stop switch malfunction? Make sure that the stop switch is functioning when the operator is seated. Replace switch if necessary. Fuel? Look at the fuel system. Make sure there is fuel being supplied to the engine. Check to ensure that the fuel filter is not clogged. Ignition? Check to ensure that the ignition switch has power and is functioning correctly.
TROUBLESHOOTING Troubleshooting (Ride-On Trowel) - continued Symptom Lights (optional) not working. Retardant spray (optional) not working. Steering is unresponsive. Operating position is uncomfortable. Linkage on Twin Pitch Tower not working. Clutch slipping or sluggish response to engine speed change. possible problem Solution Wiring? Check all electrical connections in the lighting circuit. Verify wiring is in good condition with no shorts. Replace defective wiring or components immediately.
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 deficient spark plug insulation? Check spark plug insulation, replace if worn. Improper spark plug gap? Set to proper gap. Fuel reaching carburetor? Check fuel line. Water in fuel tank? Flush or replace fuel tank. Fuel filter clogged? Replace fuel filter.
TROUBLESHOOTING Troubleshooting (engine) - continued Symptom Weak in power, compression is proper and does not misfire. Weak in power, compression is proper but misfires. Engine overheats. Rotational speed fluctuates. Recoil starter malfunctions. (if applicable) Starter malfunctions. possible problem Air cleaner dirty? Clean or replace air cleaner. Improper level in carburetor? Check float adjustment, rebuild carburetor. Defective spark plug? Clean or replace spark plug.
Operation Manual HERE’S HOW TO GET HELP PLEASE HAVE THE MODEL AND SERIAL NUMBER ON-HAND WHEN CALLING UNITED STATES Multiquip Corporate Office 18910 Wilmington Ave. Carson, CA 90746 Contact: mq@multiquip.com MQ Parts Department Tel. (800) 421-1244 Fax (800) 537-3927 Mayco Parts 800-427-1244 310-537-3700 Fax: 800-672-7877 Fax: 310-637-3284 Warranty Department 800-306-2926 310-537-3700 Fax: 800-672-7877 Fax: 310-637-3284 Service Department 800-421-1244, Ext. 279 310-537-3700, Ext.
