Perform hydraulic cylinder repair in a clean work area to prevent contaminants from
causing equipment failure. Failure to comply may result in damage to equipment.
Using overhead lifting device with nylon sling, move hydraulic cylinder assembly to a vertical position with
plunger (Figure 1, Item 1) facing upward. Securely block hydraulic cylinder in vertical position.
Perform Steps 2 through 10 to remove plunger from sleeve.
Remove retaining ring (Figure 1, Item 2) from sleeve (Figure 1, Item 3).
Figure 1. Retaining Ring Removal.
Retaining rings, piston rings, seals, wear rings, guide rings, wipers, and wiper
retainers should be noted by name and installed position immediately after
removal and replacement parts from parts kit tagged to aid in installation.
Wiper retainer and seal should come out as plunger is lifted a few inches. If not,
apply a three-inch strip of tape at a 45-degree angle to a cleaned section of
plunger. Lower and again lift plunger to remove wiper retainer and seal.
Lift plunger (Figure 2, Item 1) to expose wiper retainer (Figure 2, Item 3) and seal (Figure 2, Item 4). Lower
plunger and remove nylon sling. Remove wiper retainer and seal from plunger. Remove wiper
(Figure 2, Item 2) from wiper retainer. Discard wiper, wiper retainer, and seal. Remove tape from plunger, if