jcb JS200 Service Manual page 371

Section E
76 - 6
Reconditioning (continued)
Jig Usage (continued)
4. Outer guide jig fitting
5. Press-fitting
6. Removal of jig
9803/6400
Hydraulics
Hydraulic Rams
Put the plate on the outer guide jig and then continue to
push the plate by hand until the seal ring touches the
outer guide jig.
Be sure to set the seal ring straight on the inner guide jig.
Continue to press the plate on the outer guide jig by
hydraulic press until the seal ring fits into the groove.
Be sure to press the plate carefully so that the seal ring will
fit straight on the inner guide jig and into the groove.
Finish this work quickly.
After confirming that the seal ring is completely fitted into
the piston groove, remove the jigs in the following order.
1. Remove the press rod.
2. Remove the plate.
3. Remove the outer guide jig.
4. Remove the inner guide jig.
The fitting of the seal ring is completed at this stage.
Next, correct the fitting of the seal ring using the correction
jig.
Section E
76 - 6
Issue 1