JLG 450AJ Service Manual - Manual (Page 33)

SECTION 2 - PROCEDURES
3120869 – JLG Lift – 2-17
2. Remove port plugs and drain oil from pump.
3. Use a permanent marker pen to mark a line across
the mounting flange, gear housing and end cover.
This will assure proper reassembly and rotation of
pump.
4. Remove key from drive shaft if applicable.
5. Clamp the mounting flange in a protected jaw vise
with the pump shaft facing down.
6. Loosen the four metric hex head bolts.
7. Remove pump from vise and place on clean work
bench, remove the four hex head bolts and spacers
if applicable.
8. Lift and remove end cover.
9. Carefully remove gear housing and place on work
bench. Make sure the rear bearing block remains on
the drive and idler shafts.
10. Remove rear bearing block from drive and idler
shafts.