4.3
3507, 3508, 3509, 3512, 3513, 4007, 4008, 4009, 4012, 4013
Cab and Covers
4.2
OPERATOR’S CAB
4.2.1
Serial Number Decal
The cab serial number decal is located inside the cab,
below 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.
4.3
CAB COMPONENTS
4.3.1
Steering Column and Orbitrol Valve
a. Orbitrol Valve Removal
1. Park the machine on a firm, level surface, level the
machine, 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 steering wheel, stating that the machine
should not be operated.
3. Open the engine cover. Allow the system fluids to
cool.
4. Disconnect the battery negative (-) cable at the
battery negative (-) terminal.
5. Remove the lower dash panel.
6. Label, disconnect and cap the four hoses (
1
) from
the side of the steering valve (
2
). Cap the fittings on
the steering valve. Label, disconnect and plug the
load sense hose (
3
) at the front of the steering valve.
Cap the fitting on the steering valve.
7. Remove the steering wheel (
4
), disconnect and
remove the display panel bracket (
5
), disconnect and
remove the accessory lever (
6
) and transmission
control lever (
7
), loosen and remove the locking bolt
(
8
) for the steering column adjustment, loosen and
remove both steering column pivot bolts and nuts.
8. Support the steering valve, and remove the four hex-
head capscrews and four lockwashers.
9. Remove the steering assembly (
9
) through the dash
panel opening.
Note: DO NOT
disassemble the orbitrol valve. The
orbitrol valve is not serviceable and must be replaced in
its entirety, if defective.
WARNING:
DO NOT
service the
machine without following all safety
precautions as outlined in the “Safety
Practices” section of this manual. Failure to
follow the safety practices may result in death
or serious injury.