75 - 7
Assembly JS200/JS240 (continued)
e. After tightening the piston nut BB, insert the steel ball
CC and install the set screw DD, tighten it to the
specified torque, then stake the set screw in two
places with a punch EE.
5. Retraction side cushion assembly (dipper ram)
Where there is a cushion at the retraction side (end of
piston rod JJ) assemble the cushion bearing as follows:
a. Expand the slit of the cushion seal HH and place the
seal on the end of the piston rod JJ.
b. Insert the cushion ring KK on the P surface and
install the stopper LL.
Note: While fitting the stopper LL, take care that it does not
break.
c. More the cushion ring KK to the right until it is in
contact with the stopper LL.
d. Tap the snap ring GG with a plastic hammer to install.
e. Install the piston nut FF after assembling the snap
ring GG.
Section E
Hydraulics
9803/6400
Section E
75 - 7
Issue 1
Hydraulic Rams
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