IMPORTANT SAFETY NOTICE 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 Materials Handler in reliable condition and use of the recommended operating procedures can help you avoid accidents. Because some procedures may be new to even the experienced operator we recommend that this manual be read, understood and followed by all who operate the unit.
INTRODUCTION General Related Manuals & Decals This manual provides important information to familiarize you with safe operating procedures and operator maintenance requirements for the Gradall Loed 534B Materials Handler. Sublications are furnished materials handler to provide concerning safety, replacement parts, procedures, theory of operation components. Replacement manuals, instruction plates can be ordered from Materials Handler Distributor.
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SAFETY HIGHLIGHTS Read and understand this manual, the Gradall Loed/Materials Handler Safety Manual and all instructional decals and plates before starting, operating or performing maintenance procedures on this equipment. Operators of this equipment must have successfully, completed a training program in the safe operation of this type of material handling equipment. Most safety notes included in this manual involve characteristics of the Model 534B Loed/Materials Handler.
OPERATOR’S CAB The standard cab is open on three sides and includes an overhead guard to provide protection from falling objects. Never operate the handler unless the overhead guard is in place and in good condition. A fully enclosed cab with Plexiglass windows and a lockable door is available as an option. The cab door can be secured in the fully opened or closed position. Be sure the door is fully secured when operating the handler.
CHECKS AND SERVICES BEFORE STARTING ENGINE (To be performed at beginning of each work shift) enter these ports, it can shorten the life of o-rings. seals, packings and bearings. Use extreme caution when checking items beyond your normal reach. Use an approved safety ladder. When adding fluids or changing filter elements, refer to the lubrication section of this manual to determine the proper type to be used. Before removing filler caps or fill plugs, wipe all dirt and grease away from the ports.
ENGINE OPERATION NOTE: If engine is being started at beginning of work shift be sure to perform all “ CHECKS AND SERVICES BEFORE STARTING ENGINE” (Page 6). Starting Engine installed ether starting aid, fully raise and depress starting aid knob one time only before cranking engine. If you use a different starting aid, be sure to follow manufacturer’s instructions carefully. Excessive ether may damage engine. 1.
Stopping the Engine Operate engine at idle speed for a few minutes before turning it off. This allows engine coolant and lubricating oil to carry excessive heat away from critical engine areas. cylinder walls and dilute lubricant in crankcase. To stop engine, allow engine to run at idle for a few minutes and then turn key counterclockwise to stop position. Be sure to remove key from ignition switch before leaving cab.
BRAKE SYSTEM Service Brakes General The brake system furnished on The handler includes a service brake, parking brake and Mico lock. The power-assisted hydraulic service brake is applied only to front wheels of handler. Because service braking and “inching” (slow travel) functions overlap, some features of inching will be discussed here. Refer to Drive Train Section for additional information on inching travel.
To release parking brake, push parking brake lever forward (to horizontal position). Parking Brakes The parking brake locks the front axle by means of a cable actuated brake caliper acting on a brake disc attached to the axle input yoke. Always apply parking brake before leaving cab. Neither leaving the unit in gear nor applying the Mico Lock will prevent unit from rolling. Refer to page 17 for parking procedure. Parking brake tension can be increased by turning knob at end of lever clockwise.
DRIVE TRAIN General Transmission The drive train provides two and four wheel drive and includes the engine, torque converter, transmission, propel shaft and front and rear driving axles. The transmission provides three speed ranges for both forward and reverse travel. Inching travel is directly related to drive train functions and will be discussed in this section. Gear mph 1st 2.8 2nd 6.0 3rd 15.9 3rd* 17.9 kmph 4.5 9.6 25.6 28.
Rear Driving Axle travel functions only in first and second gears. There is no hydraulic flow to drive motors in third gear. The rear driving axle includes planetary hubs which are powered by hydraulic motors mounted on the inner face of the hubs. Hydraulic flow to drive motors is provided only in first and second gear speed ranges. Drive motors are free-floating in third gear. Inching travel is controlled by the service brake/inching travel pedal.
MATERIAL HANDLING Leveling To Level Handler: Position machine in best location to lift or place 1. load and apply brake. The handler is designed to permit tilting main frame eight degrees to left or right to compensate for uneven ground conditions. Raising the boom (loaded or unloaded) when handler is leaning to the side can cause machine to tip over with little or no warning. 2. Observe level indicator to determine whether machine must be leveled. Note position of indicator for later realignment. 3.
Attachments A serial number plate is attached to all attachments and indicates maximum capacity for that attachment. However, the capacity shown on this plate may be incorrect in relation to your machine. Although the carriage/fork combination is most frequently used, a number of other attachments are available for use with the handler. can be provided for light duty work. A truss boom is available to extend maximum reach and height and can be fitted with a winch when required.
OPERATING PROCEDURES & TECHNIQUES This section highlights some common procedures and discusses areas which may be new to even the experienced operator. With boom raised above horizontal, forks can be removed from a load by moving boom control lever back and to the left until forks move rearward horizontally. Hydraulic Controls With boom lowered below horizontal, forks can be inserted under a load by moving boom control lever back and to the right until forks move forward horizontally.
Rated Capacity Chart Boom Extension Numbers across bottom of chart (0' to 22') and numbers parallel to boom (2' to 18') represent boom extension as measured from fully retracted position to extended position. These numbers do not reflect total boom length, only the number of feet of extension from fully retracted position. Number decals on boom section number two (4, 8 12, 16 and 20) relate directly to boom extension. The largest number which can be read from operator’s seat indicates total boom extension.
based on hydraulic limitations, the maximum load may be handled anywhere within reach of machine. Never use “tipping” method to determine safe lifting capacity. This could cause the load to fall or the machine to tip over. Truss Boom/Winch Capacity Lift capacity for a truss boom or a truss boom/winch combination. If furnished with the handler, is shown on the Attachment Capacity plate.
LUBRICATION & MAINTENANCE DIAGRAM Lubricate Notes • Lubricate points indicated by dotted leaders on both sides of unit. • Intervals shown are for normal (8 hour day) usage and conditions. Adjust intervals for abnormal usage and conditions. • • • Clean lubrication fittings before lubricating. • Clean filter and air cleaner housing using diesel fuel. Dry components thoroughly using a lint free cloth. 20). • Check lubricant levels when lubricant is cool.
Daily or Every 10 Hours Lube Symbol No. of Points 1. Carriage Tilt Cylinder Pivots CG 2 2. Boom Extension Cable Sheave CG 1 3. Boom Slide Bearings (extend boom fully and coat all wear paths on boom sections 2 and 3 - retract and extend boom fully three times and wipe excess grease from bearings) CG 5. Boom Hoist Cylinder Pivots CG 7. Boom Retraction Cable Sheave CG 1 Front Boom Slide Bearings (check retaining bolt torque - 12 13. Front Hub Drain Plugs (dram and refill) GO 2 15.
Recommended Lubricants & Capacities Application Symbol When Used Grade Specifications Capacities** English Liters Engine Crankcase EO (engine oil) All year 10W-30 - 12 quarts 7.8 Engine Cooling System 50% water/50% anti-freeze All year Permanent - 24 quarts 22.7 Transmission ATF (automatic trans. fluid) All year - 20 quarts 18.9 40gallons 151.4 Fuel Tank DF (diesel fuel) All year #2 ATF-FM DEXRON A.S.L.E. No. H-215* Hydraulic System HF (Hydraulic fluid) All year - A.P.I.
HAND SIGNALS Standard Signals - When handler work conditions require hand signals, they shall be provided or posted conspicuously for the use of both signalman and operator. No handler motions shall be made unless signals are clearly understood by both signalman and operator. Special Signals - When signals for auxiliary equipment functions or conditions not covered are required, they shall be agreed upon in advance by the operator and signalman.