OPERATION MANUAL SERIES MODEL HHXD5 RIDE-ON TROWEL (B & S VANGUARD DM 950 DT DIESEL ENGINE) Revision #2 (05/04/12) 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 HHXD5 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............................
NOTES HHXD5 RIDE-ON TROWEL • OPERATION MANUAL — REV.
TRAINING CHECKLIST TRAINING CHECKLIST This checklist will list 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 HHXD5 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 Figure 1. HHX Dimensions Table 1. HHX Specifications SPECIFICATION PARAMETER HHXD5 (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 1,440 (658) Weight – lbs. (kgs.) Shipping 1,515 (692) Blade Tip Speed – FPM (m/s) 1425 (7.24) Fuel Tank – gallons (liters) 9 (34) Rotor – RPM 40 to 170 Path Width – in.
SPECIFICATIONS Table 2. Noise and Vibration Emissions Guaranteed ISO 11201:2010 Based Sound Pressure Level at Operator Station in dB(A) Guaranteed ISO 3744:2010 Based Sound Power Level in dB(A) Whole Body Vibration Per ISO 2631-1:1997+A1:2010 in m/s2 A(8) 98 120 0.06 NOTES: 1. Sound Pressure and Power Levels are “A” weighted Measures per ISO 226:2003 (ANSI S1.4-1981). They are measured with the operating condition of the machine which generates the most repeatable but highest values of the sound levels.
GENERAL INFORMATION HHX RIDE-ON TROWEL FAMILARIZATION BLADES The HHX is designed for the floating and finishing of concrete slabs. The blades of the ride-on power trowel finish the concrete as they are swirled around the surface. Blades are classified as combination (10 or 8 inches wide), finish (6 inches wide). The HHX is equipped with five blades per rotor equally spacedin a radial pattern and attached to a vertical rotating shaft by means of a spider assembly. Take a walk around your trowel.
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. HHXD5 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. 2. Steering Control Joystick (right side) — Allows the unit to move in either a forward, reverse left or right direction. 8. Ignition Switch — With key inserted turn clockwise to start engine. 9.
CONTROLS AND INDICATORS 23 19 25 26 27 18 19 35 35 28 22 29 17 21 20 30 24 Figure 3. HHXD5 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. 24.
CONTROLS AND INDICATORS Figure 4. HHXD5 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. Blade Speed Pedal — Slow blade speed is accomplished by slightly depressing the foot pedal while maximum blade speed is accomplished by fully depressing the pedal. 40.
ENGINE COMPONENTS (DIESEL) 6 5 7 13 12 4 8 14 3 15 11 16 10 2 17 1 9 9 18 Figure 5. Engine Components (Diesel 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 Diesel engine. 1. Fuel Filter — Prevents dirt and other debris from entering the Fuel Injection system. 2.
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. box oil capacity is 1 U.S. Gallon, (3.79 liters). If additional oil is required, unscrew the oil fill plug located on top of the gearbox, and refill with ISO 220 A GMA GR 5 EP oil. DO NOT use your ride-on power trowel until this section is thoroughly understood.
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 3. Keep your foot OFF the foot pedal. If the engine is cold, adjust the choke but in all circumstances, start the engine at idle (without touching foot pedal). 4. Insert the ignition key into the ignition switch . 5. Turn the ignition key clockwise to the (start) position.
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 4 illustrates the various directional positions of the joysticks and their effect on the ride-on trowel. 4.
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). AIR CLEANER BODY Use high quality detergent oil classified "For Service CF, or CF-4". Fill to the upper limit of dipstick. Do not over-fill. 3.
MAINTENANCE Oil/Water Separator 1. Check and clean battery terminals for corrosion. 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. 2. Check and keep battery electrolyte between upper and lower limits indicated on the battery. Never operate or recharge without sufficient fluid in the battery. Oil And Fuel Lines 1.
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) CENTRIFUGAL FORCE LOW OUTPUT SPEED DRIVE PULLEY DISTANCE MOVEABLE FACE TRAVELS MOVEABLE FACE IS CONTROLLED BY A SPRING AND BELT TENSION How It Works (Figure 26) Condition A: • Engine Idling • Drive Pulley: Small • Driven Pulley: Large • Belt: Loose and Stationary LOW ENGINE RPM DRIVEN PULLEY MOVABLE FACE IS CONTROLLED BY ROLLER WEIGHT ARMS AND SPRINGS HIGH OUTPUT SPEED DRIVE PULLEY Condition B: • Engine Accelerating • Drive Pulley: Small But Increasing • Driven Pull
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. 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 PULLEY 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. Figure 30. Remove Left-Side CV Axle 3. If the belt is not being reused (recommended), CUT the drive belt. Ensure all belt remnants are removed from the pulleys.
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 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 Look at the machine while it is running, do the guard rings “rock up and down” relative to the ground? high. Conversely, adjusting bolts that are too low will not allow the blades to be pitched high enough for finishing operations. Do the pitch control towers rock back and forth? If, after making Blade Pitch adjustments the machine is still finishing poorly, blades, trowel arms, and trowel arm bushings may be suspect and should be looked at for adjustment, wear, or damage.
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) 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 00 Steering Pressure Adjustment 20 30 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 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. These may include oil, Diesel, hydraulic oil and antifreeze.
FUEL SYSTEM DIAGRAM PAGE 46 — HHXD5 RIDE-ON TROWEL • OPERATION MANUAL — REV.
NOTES HHXD5 RIDE-ON TROWEL • OPERATION MANUAL — REV.
WIRING DIAGRAM (ENGINE) PAGE 48 — HHXD5 RIDE-ON TROWEL • OPERATION MANUAL — REV.
WIRING DIAGRAM (ENGINE) HHXD5 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 Engine will not start or start is delayed, although engine can be turned over. At low temperatures engine will not start. Engine fires but stops soon as starter is switched off. Engine stops by itself during normal operation. Low engine power, output and speed. Possible Problem Solution No Fuel reaching injection pump? Add fuel. Check entire fuel system. Defective fuel pump? Replace fuel pump.
TROUBLESHOOTING Troubleshooting (Engine) - continued Symptom Low engine power output and low speed, black exhaust smoke. Engine overheats. Possible Problem Solution Air filter blocked? Clean or replace air filter. Incorrect valve clearances? Adjust valves per engine specification. Malfunction at injector? See engine manual. Too much oil in engine crankcase? Drain off engine oil down to uppermark on dipstick.
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.
