jcb JS200 Service Manual page 372

Section E
76 - 7
Reconditioning (continued)
Jig Usage (continued)
7. Correction jig preparation
8. Inserting the piston
9. Press fit
*
Correction range
9803/6400
Hydraulics
Hydraulic Rams
Set the correction jig underneath the press.
Apply a thin coat of lubricant to the tapered section of the
correction jig and place the jig with the tapered section
facing up.
Be careful that no dust, chipped metal and lint adheres to
the jig.
Slowly insert the piston, with the seal ring fitted, into the
correction jig.
Insert the piston evenly inside the correction jig.
Press rod
Correction jig
Piston
Press the piston slowly with a press rod that has
smaller diameter than the piston, until the seal ring fits
correctly in the groove.
Note: Stop pressing temporarily for three to five
seconds when the piston reaches the point of
correction and then repress the piston to the end.
Section E
76 - 7
Issue 2*