JLG 4394RT Service Manual - Manual (Page 99)

SECTION 3 - CHASSIS, PLATFORM & SCISSOR ARMS
3121249 – JLG Lift – 3-63
Assembly Removal
NOTE: Applies to both front and rear of machine.
REMOVAL:
SUPPORT THE LEVELING JACKS ASSEMBLY BEFORE ATTEMPT-
ING ANY REMOVAL AND/OR ASSEMBLY PROCEDURES.
1. Disable machine operation and block all wheels.
2. Remove covers from leveling jack cylinders (refer to
Figure 3-35., Leveling Jack Cylinder Removal).
3. Disconnect, cap and label hydraulic lines connected
to leveling jack cylinders. Disconnect and label all
electrical wiring attached to cylinder and switches.
4. Remove the four bolts (2), nuts (3) and washers (4).
5. Carefully lower assembly from the supports (9).
6. Supports can be removed from chassis by removing
the four bolts (5), nuts (6) and washers (7).
INSTALLATION:
1. Follow Removal Steps in reverse.
NOTE: Torque bolts (5) to 280 lb-ft (379.6 Nm).
2. Uncap and reconnect hydraulic lines and electrical
wires to cylinders and switches.
3. Operate leveling jacks to ensure proper operation.
2
3
4
4
5
6
7
7
8
1
9
1. Leveling Jacks Assembly
2. Bolt, 1/2"-13NC x 1 3/8"
3. Nut
4. Washer
5. Bolt, 3/4" - 10NC x 3 1/4"
6. Nut
7. Washer
8. Plate
9. Support
Figure 3-36. Leveling Jacks Assembly