JLG 150HAX ANSI Service Manual - Manual (Page 115)

SECTION 5 - HYDRAULICS
3120679 – JLG Lift – 5-19
5.7 HYDRAULIC GEAR PUMP
Disassembly
DO NOT GRIP ON OR NEAR ANY MACHINED SURFACES DURING
ASSEMBLY OR DISASSEMBLY.
1. Place the pump in a vise with the drive shaft pointing
down. Match mark all sections. Be sure to align
these marks when reassembling.
2. Use a socket wrench to remove the four hex nuts,
studs, and washers.
3. Lift off the port end cover. If prying is necessary, be
careful not to damage the machined surfaces.
Dowel pins will remain in either port end cover or
gear housing. Do not remove the dowel pins.
4. Remove the thrust plate. Examine and replace if
necessary.