JLG 450A_AJ Series II Service Manual User Manual
Page 94
SECTION 3 - CHASSIS & TURNTABLE
3-54
– JLG Lift –
3121290
3.
Press new dirt and water seal (20) into housing (18)
outer bearing counterbore. Press in dirt and water seal
(20) until flange is flush against housing.
4.
Place housing (18) assembly into a soft jawed vise with
coupling shaft bore down, clamping against mounting
flange.
5.
Assemble a new backup ring (17), new backup washer
(25), and new seal (16) with seal lip facing toward inside
of motor, into their counterbores in housing (18).
6.
Install thrust washer (14) and thrust bearing (15).
NOTE: Motor requires one thrust washer (14) with thrust bearing
(15). Coupling shaft seats directly against thrust bearing.
7.
Apply masking tape around splines or keyway on shaft
(12) to prevent damage to seal.