Inspection, Inspection -17 – JLG 340AJ Service Manual User Manual
Page 149
SECTION 4 - BOOM & PLATFORM
3121259
– JLG Lift –
4-17
17.
Remove the main pressure seal (205).
18.
Remove the thrust washer (304) from the end cap (4)
and shaft (2).
19.
Remove the O-ring (304.1) from its groove in the end
cap (4) and shaft (2).
20.
Remove the outside diameter piston seal (202) from the
piston.
21.
Remove the inside diameter piston seal (200).
Inspection
PRIOR TO ASSEMBLY OF ACTUATOR, THESE STEPS MUST BE CLOSELY FOL-
LOWED TO ENSURE PROPER OPERATION OF THE ACTUATOR.
1.
Clean all parts in a solvent tank and dry with com-
pressed air prior to inspecting.
2.
Carefully inspect all critical areas for any surface finish
abnormalities: Seal grooves, bearing grooves, thrust sur-
faces, shaft surface, housing bore and gear teeth.
SMALL OR MINOR SURFACE SCRATCHES CAN BE CAREFULLY POLISHED.