JLG 680S Service Manual - Manual (Page 52)

SECTION 3 - CHASSIS & TURNTABLE
3-4 – JLG Lift – 3121234
3.3 DRIVE MOTOR (2WD) (PRIOR TO S/N
83331)
Replacing the Drive Shaft Seal
1. Remove snap ring.
2. Change the shaft seal and check its sliding surface
(drive shaft) and housing, grease the sealing ring.
3. Be careful while you seal the drive shaft, use an
adhesive tape.
4. Assemble the sealing ring, fitting tool holds the cor-
rect position of the sealing ring in the pump housing.
5. Assemble the snap ring.
6. Assemble the snap ring in the correct position.
NOTE: This description shows how to change the drive shaft
sealing ring but isn’t the way of serial assembly. the
sealing ring is assembled together with the taper
roller bearing from inside the pump housing normally
to get a secure condition. If you decide to repair the
pump in the shown way be very careful while han-
dling so that the drive shaft will not be damaged dur-
ing disassembly of the shaft sealing ring.