Service manual

HYDRAULIC CYLINDERS (Cont’d)
Assembly
Use the following tools to assembly the cylinder:
MEL1396 – Seal Installation Tool
MEL1033 – Rod Seal Installation Tool
Piston Ring Compressor
Spanner Wrench
Wash the cylinder parts in solvent and air dry them.
Inspect the cylinder parts for nicks, scratches or other
damage. Replace any damaged parts.
Always install new O–rings and seals during assembly.
Lubricate all O–rings and seals with hydraulic oil during
installation.
Install the new seal on the tool and slowly stretch it until
it fits the piston [A].
Allow the seal to stretch for 30 seconds before installing
it on the piston.
Standard Piston: Install the seal (Item 1) [B] and O–ring
(Item 2) [B] on the piston (Item 3) [B].
Cushion Piston: Install the seal and O–ring on the piston
(Item 1) [C].
Use a ring compressor to compress the seal to the correct
size. Leave the piston in the compressor for about three
minutes.
Install the rod seal on the rod seal tool [D].
Rotate the handles to collapse the rod seal [D].
NOTE: During installation the O–ring side of the seal
must be toward the inside of the cylinder.
A
P–07424
C
P–07438
1
D
P–07427
853, 853H Loader
–2–17– Service Manual
B
P–07430
3
2
1