JLG 18RS Service Manual - Manual (Page 50)

SECTION 3 - CHASSIS & TURNTABLE
3-12 – JLG Lift – 3121284
4. Place the balance plate (set) inside the end cover with
the pin orientated to fall in with the hole of its bottom.
Use a plastic hammer.
Lubricate spacer and install in the balance plate hole.
Parts are correctly assembled when at pressing the front
surface of balance plate by thumbs downwards, the bal-
ance plate jumps up itself as a result of spring force.
5. Mount the end cover (set) carefully over both studs.
Make sure that the port face of end cover coincides with
the orientated drain port.
6. Install the screws in End cover. Torque the screws 6-7
daNm (5-6 lbs-in.).
7. Install O-ring on drain plug. Tighten plug with Allen key
S6 with torque 2.0 - 2.5 daNm (1.7-2.2 lbs-in.).
Installation
1. Align the splines of the drive motor shaft with the
splines in the drive brake and secure in place with the
retaining bolts. Torque the bolts to 37 ft.lbs. (51 Nm).
2. Connect the hydraulic lines to the drive motor as tagged
during removal. Torque the fittings to 60 ft.lbs. (82 Nm).
3.7 SWING MOTOR
IF THE HYDRAULIC SYSTEM FLUID BECOMES OVERHEATED [IN EXCESS OF
200°F (93.3°C)], SEALS IN THE SYSTEM CAN SHRINK, HARDEN OR CRACK,
THUS LOSING THEIR SEALING ABILITY.