Piston Disassembly - JLG T500J Service And Maintenance Manual

7. Install T-seal (5) and wear ring (6) on piston (3).
6
5
3
Figure 5-19. Piston Disassembly
8. Screw the piston (3) on to rod end. Do not dislodge or
damage seals.
9. Install locknut (14) on the rod.
10. Remove cylinder rod from holding fixture.
11. Position cylinder barrel in a suitable holding fixture.
INSERTING ROD OFF-CENTER CAN DAMAGE PISTON AND CYLINDER BARREL
SURFACES. USE EXTREME CARE WHEN INSTALLING CYLINDER ROD, HEAD,
AND PISTON.
12. Clamp barrel securely and support rod. Insert piston end
into barrel cylinder. Do not damage or dislodge seal.
13. Continue pushing rod into barrel until cylinder head
gland can be inserted into barrel cylinder.
14. Screw the cylinder head gland into the barrel using a
tool and tighten until punch mark matches.
3121200
SECTION 5 - BASIC HYDRAULIC INFORMATION & SCHEMATICS
8
7
8
MAE29230
Figure 5-20. Cylinder Head Installation
15. After the cylinder has been reassembled, the rod should
be pushed all the way in (fully retracted) prior to the
reinstallation of any holding valve or valves.
16. Install the solenoid valve and fittings in the rod port
block, using new o-rings as applicable.
MAE29530
5-17