JLG 4394RT Service Manual - Manual (Page 40)

SECTION 3 - CHASSIS, PLATFORM & SCISSOR ARMS
3-4 – JLG Lift – 3121249
REMOVAL:
SHUT MACHINE OFF, BRACE AXLES AND CHALK WHEELS TO
PREVENT MACHINE FROM MOVING DURING REPAIRS.
1. Disconnect, cap and label all hydraulic lines
attached to Drive Motor (6). If applicable, disconnect
all electrical wiring.
2. With axle raised and supported, remove the Tires (1)
from the Drive Hub (3) by removing the 9 Lugnuts
(2).
3. Remove the Drive Hub (3) and Drive Motor (6) from
the axle by removing the 6 Bolts (4) and Washers
(5).
4. The Drive Motor (6) can be removed from the Drive
Hub (3) by removing the 2 Nuts (7) and Washers (8).
INSTALLATION:
1. Follow "Removal" procedures in reverse order.
2. Refer to Table 3-1, Wheel Torque Chart when torque-
ing Lugnuts (2).
NOTE: For detailed information on the Drive Hub and Drive
Motor, refer to Section 3.4, Drive Hub (Fairfield) and
Section 3.5, Drive Motor (Sauer).
2
1
4
5
3
7
8
6
1. Tire & Rim
2. Lugnuts
3. Drive Hub (Fairfield)
4. Bolt, 5/8"-11NC x 1 3/4"
5. Hardened Washer, 5/8"
6. Drive Motor (Sauer)
7. Nut, 1/2"-13NC
8. Hardened Washer, 1/2"
NOTE: Rear Axle Shown
Figure 3-2. Drive Assembly - (Fairfield/Sauer)