Safe operation depends on reliable equipment and proper operating procedures. Performing the checks and services described in this manual will help to keep your Gradall Carrier In reliable condition and use of the recommended operating procedures can help you avoid accidents.
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Form 8149 G-660C Carrier Operator’s Manual This page shows the differences between the G-660C and the G-660C (F) model Gradall. The primary differences are with the power units and the pump systems. The G-660C (F) uses the GM 3-53T engine in the upperstructure and a choice of Ford 429, GM 6V-53T or GM 8.2L in the carrier.
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T h i s O p e r a t i o n & L u b r i c a t i o n M a n u a l and with safe operating procedures for the Gradall G - 6 6 0 C U p p e r s t r u c t u r e O p e r a t i o n & L u b r i c a t i o n w h e e l e d e x c a v a t o r u n d e r c a r r i a g e .
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SAFETY HIGHLIGHTS Read and understand this manual and “CIMA Off-Highway Truck Safety Manual” before starting, operating or performing maintenance procedures on this carrier. Do not permit this carrier to be driven by an operator who cannot read English unless these manuals have been read and explained to him and his full understanding is determined.
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SAFETY HIGHLIGHTS Learn to recognize ‘PINCH POINTS’ Counterweight & Another Object Boom Cradle Boom Boom Holes Bucket & Linkage Upperstructure & Carrier Learn to recognize “PINCH POINTS” and stay clear of them. Getting caught in a pinch point can cause serious injury or death.
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If it differs, or if you aren’t sure, machine. Such items can cause other workers to contact your Gradall distributor before you run approach the machine without your knowledge and y o u r u n i t .
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SAFETY HIGHLIGHTS Be particularly careful if this is not the machine you usually operate. Read the manuals listed on page 2 and then operate the unit in a safe, open area to become familiar with the controls. Learn and follow your employer’s safety rules. Travel off-highway grades...
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. Center boom over rear of chassis and rest boom If one or more wheels indicate brake failure, or bucket on the ground. DO NOT DRIVE THE GRADALL HYDRAULIC EXCAVATOR. Apply down...
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SAFETY HIGHLIGHTS Always apply digging brake to prevent carrier Know overall height of your unit before traveling m o v e m e n t w h i l e o p e r a t i n g u p p e r s t r u c t u r e . A p p r o a c h u n k n o w n c l e a r a n c e s l o w l y.
INSTRUMENTS AND INDICATORS Fuel Gage Oil Pressure Wheel Lock Control Indicator Light (glows Air Pressure Gage (for front portion of air brake *10. to indicate failure of front axle portion of system) wheel lock control system) Hi / Lo Beam Indicator Wheel Lock Control Indicator Light (glows to *11.
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CONTROLS 6x6 UNITS 6x4 UNITS Windshield Washer Switch Choke Knob Head, Tail & Clearance Light Switch Engine Stop Handle (diesel engine only) Windshield Wiper Switch Headlight Hi/Lo Beam Switch Heat Vent Control Knob (down for defrost) Clutch Pedal Heat Control Knob (up for hot) Brake Valve Pedal Heater Fan Switch Accelerator Pedal...
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CHECKS AND SERVICES BEFORE STARTING ENGINE Complete all required maintenance before driving the carrier Use extreme caution when checking items beyond your nomal reach. an appoved safety ladder. Check fluid level in windshield washer reservoir on rear wall in carrier cab. Add windshield washer solvent as necessary.
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Lubricate unit as indicated on lubrication chart. Check fuel level and replenish has necessary. refuel work shift minimize condensation. Engine should turned while refueling. Be sure area is free of open flame, sparks o any condition which could cause fuel to ignite. Check engine coolant level and replenish as necessary.
ENGINE OPERATION NOTE: If engine is being started at beginning of work shift be sure to perform all “CHECKS AND SERVICES BEFORE STARTING ENGINE” Starting Ford Engine seconds, release key and allow starting motor to Be sure main transmission is in neutral and cool for a few minutes before trying again.
Cold weather starting aids Diesel engine ignition is accomplished by heat it would be impractical to attempt to provide generated when fuel/air mixture compressed specific instructions for their use in this manual within the cylinders. Because this heat may be Carefully follow instructions...
CHECKS AFTER STARTING ENGINE (To be performed at beginning of each work shift) Complete all required maintenance before driving Check operation of windshield washer and put. Proper output is approximately 14 V. with wiper. engine running at 2000 RPM. Check all lights and turn signals for proper water temperature gage.
BRAKE SYSTEM The air brake system includes a service brake, an emergency brake, a parking brake and a digging brake. The system may also include an optional wheel lock control system to minimize skidding. Wear safety belt to avoid being thrown diver’s seat duing...
order in the event of a defect in the wheel lock treadle valve will apply service brakes to the wheels control system, more lights will glow of the forward and rear tandem axles. There will be c o n t i n u o u s l y t o c a l l a t t e n t i o n t o t h e c o n d i t i o n . n o b r a k i n g o n t h e w h e e l s o f t h e f r o n t a x l e .
DIGGING BRAKE APPLICATION If the air pressure gages indicate some system pressure remaining, it may be possible to drive the unit a short distance to remove it from a hazardous p o s i t i o n ( u s e f i r s t g e a r a n d l o w r a n g e o n l y ) . If carrier cannot be moved, direct traffic around carrier until warning flags, flares or lights can be displayed.
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Remote control braking element to that ice which may form in cold weather. A control screw located on the bottom of the valve three positions, AUTOMATIC, MANUAL DRAIN and SHUT OFF. The digging brake is applied by the control toggle in the carrier cab.
STEERING SYSTEM Conventional steering Remote control steering Your unit is equipped with a travel/ steering joystick The power steering system provides low effort in the upperstructure cab. Upperstructure engine steering under normal conditions greater must be running to provide power for remote control in the event of a blowout or soft ground.
POWER TRAIN The power train furnished on 6x4 carriers (units The major variations found on 6x6 carriers (units having two driving axles at rear) includes the engine, having two driving axles at rear and a third driving clutch, transmission, auxiliary transmission, rear axle in front) are the substitution of a front driving tandem axles and the necessary propeller shafts to axle in place of a non-driving front axle and the...
Transfer Case (for 6x6 units only) The transfer case is a gearbox located between the transmission and rear tandem axles. It functions Do not shift transfer case speed range or with the transmission to regulate torque (power) engage front axle drive while carrier is being delivered to the front and rear driving axles.
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SHIFTING GEARS gear position. Apply light, even pressure till Smooth, efficient gear shifting depends simultaneous, coordinated use of accelerator,pedal, gears mesh fully and then release clutch as in step clutch pedal and shift levers. It is also important that shifting occur at the proper time with respect to Shift to third, fourth and fifth gears by repeating c a r r i e r p o w e r r e q u i r e m e n t s a n d e n g i n e s p e e d .
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Because downshifting places an additional strain on When shifting both main auxiliary drive line components it is recommended that the transmissions while the carrier is moving, it is double clutching method be used for downshifting important to select the proper range and gear the main as well as the auxiliary transmission.
REMOTE CONTROL NOTE: Remote control is to be used for positioning unit at job site, not for over-the-road travel. Preparing Carrier for Remote Control Operation Apply parking brake. Be sure to keep feet clear of clutch pedal when moving DIGGING BRAKE toggle to Start carrier engine...
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Precautions for Remote Control Operation Never tow load using remote control drive. Be sure of clear visibility in direction of travel; use a signalman to compensate for blind spots. Always give audible signal before moving unit. Be sure upperstructure swing brake functions Never permit bucket to drag while moving unit.
PARKING THE GRADALL P r e c a u t i o n s : Avoid parking on banks or near an excavation. chine with boom in air. Avoid parking on roads or highways. If it can- Park on level ground and block wheels.
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Refer to vendor component literature in service manual for additional lubrication and maintenance requirements.
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LUBRICANT SYMBOLS Refer to vendor component literature in service manual SYMBOLS for additional lubrication and maintenance requirements. = Fitting CG - Grease, High Temp → = Other Service GO - Gear Oil EO - Engine Oil Daily Lubrication & Maintenance Clutch Pedal Pivot Spring Anchor Pin King Pin Bearings...
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6x6 CARRIER LUBRICATION & MAINTENANCE DIAGRAM Refer to vendor component literature in service manual for additional lubrication and maintenance requirements.
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LURICANT SYMBOLS Refer to vendor component literature in service manual SYMBOLS for additional lubrication and maintenance requirements. CG - Grease, High Temp = Fitting → GO - Gear Oil = Other Service EO - Engine Oil No . of Points Clutch Pedal Pivot Radiator Filter cap (check coolant level and Transfer Case Shift Lever Pivots...
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Recommended Lubricants & Capacities * Refer to manufacturer’s service literature for this information. **Capacities are approximate - check level to be sure. Replacement Filter Elements W&S Part No. Oil Filter (Ford) ....................................7721-3044 Oil Filter (Detroit Diesel)................................8307-4446 Primary Fuel Filter (Ford) (on frame)............................8307-4447 Secondary Fuel Filter (Ford) (on frame) ............................
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SECURING BOOM/BUCKET FOR TRAVEL Position for buckets narrower than boom rest Positlon for buckets wider Position for buckets with same than boom rest width as boom rest IF YOU GET STUCK If unit becomes stuck in soft ground you can use the rear to prevent tipping) and imbed bucket in ground.
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Gradall Industries, Inc. 406 Mill Ave SW New Philadelphia OH. 44663 Phone: (330) 339-2211 Customer Support Toll Free: (800) 445-4752 Fax: (330) 339-3579...
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