JLG 3507 Service Manual page 38

Cab and Covers
IMPORTANT: During the full throttle check:
• DO NOT operate any hydraulic function.
• DO NOT steer or apply any pressure to the steer-
ing wheel.
• Keep the transmission in (N) NEUTRAL.
2. Check the engine rpm at full throttle. If the rpm is not
2340 ±50 rpm, readjust the throttle limit-stop screw
at the throttle pedal within the cab.
4.3.4 Joystick Assembly Replacement
a. Joystick Assembly 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 engine to cool.
4. Disconnect the battery negative (-) cable at the
battery negative (-) terminal.
5. Remove the two capscrews. Remove the bottom
cover. Disconnect the electrical connections and
remove the four self-tapping screws from the bottom
of the joystick assembly.
6. Remove the joystick assembly.
b. Joystick Assembly Installation
1. Set the joystick assembly into the armrest support.
2. Install the four self-tapping screws. Connect the
electrical connections.
4.6
3. Connect the battery negative (-) cable to the battery
negative (-) terminal.
4. Test the boom joystick functions:
a. Move the joystick handle rearward, activating the
boom lift function. The boom should RISE.
b. Move the joystick handle forward, activating the
boom lower function. The boom should LOWER.
c. Move the joystick handle to the right, activating
the boom extend function. The boom should
EXTEND.
d. Move the joystick handle to the left, activating the
boom retract function. The boom should
RETRACT.
MZ0470
e. Move the joystick rocker switch forward activating
the boom extend function. The boom should
EXTEND.
5. Install the bottom cover and secure using two lens-
head capscrews.
6. Close and secure the engine cover.
4.3.5
a. Park Brake 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 the steering wheel, stating that the
machine should not be operated.
3. Block the wheels.
4. Remove the cover from around the park brake lever.
5. Disconnect the park brake electrical connector
switch.
3507, 3508, 3509, 3512, 3513, 4007, 4008, 4009, 4012, 4013
Parking Brake
MZ1490
Courtesy of Crane.Market