JLG 723A Service Manual - Manual (Page 47)

4-3 L2906H, 2906H, 3507H, 619A, 723A, 29.6LP, 29.6, 35.7
Cab and Covers
4.2 SAFETY INFORMATION
4.3 OPERATOR CAB
4.3.1 Operator Cab Description
The welded metal cab features a modular design, allowing
for a relatively quick, simple exchange of the entire cab
and/or component parts. The cab is bolted directly to the
frame.
The operator cab is a protective structure. The cab itself
contains rollover protective and falling object protective
structures (ROPS/FOPS) for the operator.
To help ensure optimum safety, protection and
performance, replace the cab if it is damaged. Refer to
the appropriate parts manual for ordering information.
The cab contains the seat, operating controls, numerous
panels, steering and brake components, and more.
Covers and mirrors on the machine exist for safety,
protection and appearance. They are relatively simple to
remove and replace.
4.3.2 Serial Number Decal
The cab serial number decal is located inside the cab,
under the seat. Information specified on the serial
number plate includes the cab model number, the cab
serial number and other data. Write this information down
in a convenient location to use in cab correspondence.
4.4 CAB COMPONENTS
4.4.1 Steering Wheel
a. Steering Wheel Removal
1. Park the machine on a firm, level surface, fully
retract the boom, lower the boom, place the
transmission control lever in (N) NEUTRAL, engage
the park brake and shut the engine OFF.
2. Place a Do Not Operate Tag on both the ignition key
switch and the steering wheel, stating that the
machine should not be operated.
3. Open the engine covers. Allow the system fluids to
cool.
4. Properly disconnect the battery.
5. Carefully pry the center button (1) out of the steering
wheel.
6. Mark the steering wheel and shaft to ensure proper
installation. Remove the nut (2) securing the steering
wheel (3) to the splined steering column shaft.
7. Use a steering wheel puller to remove the steering
wheel (3) from the splined shaft.
b. Steering Wheel Installation
1. Install the steering wheel (3) onto the splined
steering column shaft.
2. Secure the steering wheel with the nut (2).
3. Press the center button (1) onto the steering wheel.
4. Properly connect the battery.
5. Close and secure the engine covers.
6. Remove the Do Not Operate Tags from both the
ignition key switch and the steering wheel.
WARNING
DO NOT service the machine without following all
safety precautions as outlined in the “Safety Practices”
section of this manual.
WARNING
DO NOT weld, grind, drill, repair or modify the cab in
any way. Any modification or damage to cab structural
components requires cab replacement.
MAH0430
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