JLG 80HX_HX+6_HXER ANSI Service Manual - Manual (Page 47)

SECTION 3 - CHASSIS & TURNTABLE
3120271 – JLG Lift – 3-9
Cleaning and Inspection
1. Clean all parts thoroughly.
2. Closely inspect all parts for excessive wear, cracks,
and chips. Replace parts as necessary.
3. Discard seals and o-rings.
4. Closely inspect bearings and bearing contact sur-
faces. Replace as necessary.
NOTE: Bearings may be reused if, after thorough inspec-
tion, they are found to be in good condition.
Assembly
NOTE: Lubricate all seals, o-rings, cylinder of power plate
and piston with clean hydraulic oil prior to assembly.
1. Use the reverse of the disassembly procedure with
the following notes and additions.
2. Worn o-rings and damaged or worn teflon back-up
rings must be replaced prior to assembly.
3. If replacement of bleeder (19) is necessary, install 1/
2 to 3/4 turns beyond finger tight.
4. Assemble piston (14) into power plate (20) using a
shop press, being careful not to damage the o-rings
or teflon back-up rings. Visually align the center of
the cutouts in the piston with the torque pin (9) holes
in the power plate.
Figure 3-2. Drive Brake, Ausco - Machines Built Prior to October 1987