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. Separate publications are furnished with materials handler to provide informati concerning safety, replacement parts, maintena procedures, theory of operation and ven components.
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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 successfull 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. variations in operator size. The adjustment release/lock lever is located beneath front edge of seat. Wear seat belt at all times. An optional windshield wiper is available for use with enclosed cabs. An ON/OFF control switch is located on the wiper motor. Never operate the handler unless the overhead guard is in place and in good condition.
CHECKS AND SERVICES B E F O R E S TA R T I N G E N G I N E (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.
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 cylinder walls and dilute lubricant in crankcase. 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. To stop engine, allow engine to run at idle for a few minute and then turn key counterclockwise to stop position. Be sure to remove key from ignition switch before leaving cab.
BRAKE SYSTEM General Service Brakes 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.
3. Pull Mico Lock lever back to lock position (lever vertical) and then release brake pedal. To release parking brake, push parking brake lever forward (to horizontal position). To Release Mico Lock Parking brake tension can be increased by turning knob at end of lever clockwise. Release Mico Lock by pushing lever forward to release position (lever horizontal). Parking Brakes Always apply parking brake before leaving cab.
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.
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. This pedal has three separate functions: 1.
MATERIAL HANDLING Leveling To Level Handler: The handler is designed to permit tilting main frame eight degrees to left or right to compensate for uneven ground conditions. 1. Position machine in best location to lift or place load and apply brake. 2. Observe level indicator to determine whether machine must be leveled. Note position of indicator for later realignment. Raising the boom (loaded or unloaded) when handler is leaning to the side can cause machine to tip over with little or no warning. 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. A material bucket 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.
O P E R AT I N G P R O C E D U R E S & T E C H N I Q U E S With boom raised above horizontal, forks can be remove from a load by moving boom control level back and to the left until forks move rearward horizontally. This section highlights some common procedures and discusses areas which may be new to even the experienced operator.
Rated Capacity Chart Boom Extension Numbers across bottom of chart (0 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 Lubrication Notes l Lubricate points indicated by dotted leaders on both sides of unit. l Clean lubrication fittings before lubricating. l Intervals shown are for normal (8 hour day) l Clean filter and air cleaner housing using diesel fuel. Dry components thoroughly using a lint free cloth. l Check lubricant levels when lubricant is cool. l Drain engine and gear operation when lubricant is hot. usage and conditions. Adjust abnormal usage and conditions.
Daily or Every 10 Hours Lube No. of Symbol Points 2 1. Carriage Tilt Cylinder Pivots CG 1 2. Boom Extension Cable Sheave CG 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) 8 5. Boom Hoist Cylinder Pivots CG 2 7. Boom Retraction Cable Sheave CG 1 8. Boom Pivot CG 1 9. Compensating Cylinder Pivots CG 2 10. Boom Head/Carriage Pivot CG 2 14. Carriage Tilt/Machine Level Lever Pivot CG 16.
Recommended Lubricants & Capacities *Specific hydraulic fluid specifications are shown below. **Capacities are approximate - check level to be sure. Hydraulic Fluid Specifications: Grade, ASTM Grade, AGMA Gravity, ° API Color, ASTM Flash Point COC, ° F Fire Point, COC. ° F Pour Point, ° F 215 1 31.0 2.0 440 490 -30 Viscosity: SUS at 100°F SUS at 210°F Viscosity Index Aniline Point, °F Foam Test, ASTM Neutralization Number 215 48.0 105 222 Pass 1.4 Carbon Residue, Rams. wt 0.4 Zinc, wt% 0.