Safe operation depends upon reliable equipment and proper operating procedures. Performing the checks and services described in this manual will help to keep your Gradall R Excavator/Scaler in reliable condition and use of the recommended operating procedures can help you avoid accidents.
Gradall Hydraulic Excavator Safety Manual If you have any questions regarding the excavator, Any optional equipment instructions furnished contact your Gradall Distributor. He is familiar All instructional decals and plates with the unit and will be happy to help you.
SAFETY HIGHLIGHTS Read and understand this manual, the EMI Hydraulic Excavator Safety Manual, the Gradall Hydraulic Excavator Safety Manual and all instructional decals and plates before starting, operating, or performing mainte- nance procedures on this machine. Keep these manuals in cab.
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SAFETY HIGHLIGHTS (CON’T) Learn to recognize ‘PINCH POINTS Boom Holes Boom Cradle Stay clear of PINCH POINTS. Getting caught in a pinch point can cause serious injury or death. Access Covers Boom Bucket & Linkage Upperstructure & Carrier Counterweight & Another object...
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Never carry a water can, equipment, or other worker ’s tools or personal items on the in this manual. If it differs, or if you aren’t sure, contact your Gradall distributor before you run machine Such items can cause other workers to your unit.
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SAFETY HIGHLIGHTS (CON’T) Learn and follow your employer’s safety rules. 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. REPOSITION UNIT FOR EXCAVATOR OPERATION ONLY UNDER FOLLOWING CONDITIONS: Travel system in proper speed range Signal persons positioned to observe and...
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SAFETY HIGHLIGHTS (CON’T) Travel on off-highway grades is re- commended only under the following AVOID WELDING ON OR AROUND conditions: MACHINE UNLESS AIR LINES ARE Boom retracted and level PROTECTED FROM HEAT. ATTACH Tires properly inflated GROUND CABLE ONLY TO PIECE BEING WELDED.
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SAFETY HIGHLIGHTS (CON’T) THIS MACHINE IS A SCALER IT IS NOT A CRANE This unit has been designed specifically for scaling operations. It is not intended for lifting and/or maneuvering loads. Attempting to lift and/or maneuver loads may cause structural damage and/or loss of control of load. Always sound horn to warn others of unexpected machine movements (horn button is located at top of left joystick.)
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SAFETY HIGHLIGHTS (CON’T) Do not operate with bystanders or other workers near machine. Avoid injury! Always relieve pressure trap- ped in circuits before disconnecting, re- moving or installing hydraulic components. Pressure can be maintained in hydraulic circuits long after the engine has been shut down. This pressure can cause oil (or items such as pipe plugs) if pressure is not “shoot out”...
ELECTRONIC COMPONENT, IT MUST BE TEMPORARILY REMOVED. 8099-3177 Located on left cab wall Part No. 8099-3177 OPERATING CONTROLS GRADALL SCALER PRIOR TO WELDING, THE VEHICLE 1. SOUND HORN INTERFACE HARNESS MUST BE DISCONNECTED 2. JOYSTICK ON/OFF LEVER ARM REST UP = OFF...
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DECALS INSIDE CAB (CON’T) FOR SAFE OPERATION OF MACHINE AND TO MINIMIZE RISK OF SERIOUS INJURY: 1. BEFORE OPERATING,READ OPERATOR AND SAFETY MANUALS, UNDERSTAND ALL CONTROLS IN CAB AND CLEAR LOOSE OBJECTS OFF MACHINE, SOUND HORN BEFORE STARTING ENGINE. 2. STABILITY IS DECREASED DURING TRAVEL. DO NOT TRAVEL WITH BOOM EXTENDED OVER SIDE.
DECALS INSIDE CAB (CON’T) MACHINE TRAVEL OPERATION A) WITH RIGHT SIDE ARM REST IN THE DOWN POSITION, START THE POWERUNIT. B) SELECT TRAVEL SPEED RANGE (HIGH OR LOW) ON CONTROL PANEL. C) INCREASE ENGINE RPM TO FULL THROTTLE (2300 RPM), PULL STEERING WHEEL BACK TO COMFORTABLE POSITION.
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DECALS OUTSIDE CAB (CON’T) 8021-3098 8041-3018 Located near engine compartment & inside valve compartment cover Located on both sides of boom & Left Cab Wall Part No. 8021-3098 Part No. 8041-3018 8021-3097 Located on each side of boom Part No. 8021-3097 8021-3095 Located inside radiator cap cover 8031-3037...
DECALS OUTSIDE CAB (CON’T) THE GRADALL COMPANY 406 MILL AVENUE S.W. NEW PHILADELPHIA, OHIO TOP OFF COOLING SYSTEM AT EXPANSION TANK U.S.A. FOR INITIAL FILL OF COOLING SYSTEM: MODEL 1. FILL SYSTEM THROUGH RADIATOR SERIAL NO. TOP TANK & INSTALL CAP.
OPERATOR’S CAB Seat Adjustment The operator’s seat includes several adjustments to comfort and reduce fatigue. Adjust seat to suit your individual characteristics before starting engine. Perform all seat adjustments with engine stopped. Accidental actuation of controls can cause serious accidents. It may become necessary to revise some adjustments to find the most comfortable operating position.
OPERATOR’S CAB (CON’T) Heater conditions may require more frequent element washing/replacement. A noticeable reduction of air The cab is equipped with a heater located behind flow from deflector vents indicates a need to service operator’s seat. Engine coolant supply to heater is filter elements.
CONTROL AND INSTRUMENT IDENTIFICATION Test your controls before operating. The control pattern illustrated is the standard Gradall control pattern. If your machine controls have been modified to any other pattern, be certain you are familiar with 1heir functions before operating and ensure that control diagram in cab is changed to show the actual pattern.
CONTROL AND INSTRUMENT IDENTIFICATION (CON’T) Gauge Panel R.P.M. INDICATOR RPM/X1000 ENGINE OIL PRESSURE An electronic monitor caution signal indi- P.S.I ENGINE cates a condition which could cause serious COOLANT TEMPERATURE damage to your unit. Correct cause of signal WATER °F before continuing operation FUEL LEVEL HYDRAULIC...
CHECKS & SERVICES BEFORE STARTING ENGINE (To be performed at beginning of each work shift.) Complete all required maintenance before operating unit. enter these ports, it can shorten the life of o-rings, seals, packing and bearings. Use extreme caution when checking When adding fluids or lubricants, refer to lubrication items beyond your normal reach.
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CHECKS & SERVICES BEFORE STARTING ENGINE (CON’T) Always stop engine when refueling. Be sure area is free of open flame, sparks or any condition which could cause fuel or fuel vapor to ignite. Check for the presence of a fully charged fire Check fuel level symbol on gauge panel and re- extinguisher on wall behind operator’s seat.
ENGINE OPERATION Starting Diesel Engine from Cab Right hand console should be in the up position. Set the park brake by pulling up on the park brake lever. Turn the key to the ON position. Gauges on the panel assembly will light up, and the check engine light will glow for about 2 seconds then go out.
WARM UP & OPERATIONAL CHECKS (To be performed at beginning at each work shift) Complete all required maintenance before operating unit. The safety, efficiency and service life of your Observe hydraulic oil return filter caution light. excavator will be increased by performing the Normally, symbol will go out when hydraulic oil following operational checks while the engine and reaches approximately 60°F.(15.6°C.).If symbol is still...
BRAKE SYSTEM kPa), low speed range is selected, and travel pedal is General in neutral position The air brake system includes a service brake and a When brake system pressure is above 65 psi, high parking brake. Both portions of the system operate in speed range is selected and brake pedal is depressed.
POWER TRAIN General The drive axle (located at front of scaler) is equipped with hydrostatic drive. Operation Always bring unit to a complete stop The hydrostatic drive provides low and high travel before reversing direction. An abrupt speed ranges controlled by the High/Low Travel Speed change of direction will reduce stability Switch located on control console.
SCALER CARRIER LUBRICATION & MAINTENANCE DIAGRAM CAUTION Service intervals are based on machine usage of 1500 hours annually. Use of your unit may vary significantly and you must adjust service frequency for your usage to obtain maximum service life. Frequency headings in the following schedule indicate a calendar limit and an operating hour limit.
LUBRICATION & MAINTENANCE TORQUE CHART Check torque using an accurate torque wrench to apply maximum torque value shown. DO NOT EXCEED MAXIMUM TOROUE. Exceeding maximum torque may cause failure of fastener. Recommended Lubricants & Capacities 9.8 gallons AF/CC (anti-freeze/water) 37.1 29.6 quarts 28.0 * Capacities are approximate;...
EXCAVATOR HAND SIGNALS Standard Signals - When excavator work conditions require hand signals, they shall be provided or posted conspicuously for the use of both signalman and operator. No excavator motions shall be made unless signals are clearly understood by both signalman and operator.
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EXCAVATOR HAND SIGNALS (CON’T) MOVE SLOWLY - Place one hand motionless in CLOSE BUCKET - Hold one hand closed and THIS FAR TO GO - With hands raised and open ront of hand giving motion signal (Raise load stationary. Rotate other hand m small vertical circle inward.
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Hydraulic Equipment 406 Mill Avenue, S.W. New Philadelphia, Ohio USA 44663 PHONE: (330) 339-2211 FAX: (330) 339-8468 WEB SITE: www.gradall.com CALIFORNIA CALIFORNIA Proposition 65 Warning Proposition 65 Warning Battery posts, terminals and related accessories contain lead and lead Diesel engine exhaust and some of its...
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