jcb JS 200 Series, Service Manual

Page: 508 / 531

5 - 2
Section J
Track and Running Gear
9803/6400
Section J
5 - 2
Issue 2*
Grease Cylinder (continued)
Removal (continued)
! !
WARNING
RECOIL UNITS ARE DANGEROUS. They must not be
dismantled without using suitable tools to compress the
spring safely. The spring pressure can cause serious
injury if suddenly released. Scrap units must be made
harmless by compressing the spring in a hydraulic press
and cutting through the end of the shaft before slowly
releasing the pressure.
TRACK 1-10
Note: If it becomes necessary to dismantle the recoil spring
assembly, the following procedure should be used.
5. Prepare the jig for Recoil Spring Disassembly.
Place the re-coil spring unit as shown.
Jack up the hydraulic jack
A and compress the Recoil
Spring B .
6. Remove the Recoil Spring.
Pull out the Spring Pin C and remove the castellated nut
D . Let the jack A down to relieve the pressure on the
recoil spring B .
Remove the components from the jig, firstly the yoke E ,
spring
B
and finally, the grease cylinder
F
.
Replacement
1. Reassembly of Components.
a. Set the components in the jig, firstly the grease
cylinder
F , then place the spring B on top, and
finally, the yoke E .
b. Extend jack A and compress recoil spring B .
c. Install the castellated nut D on the threaded section
of the grease cylinder F which protrudes through
the yoke E . Tighten nut D , aligning the castellations
with the pin hole.
d. Remove the recoil spring assembly from the jig.
See " Recoil Spring Installation" .
e. Renew and install spring pin C .
f. Release jack A carefully and allow recoil spring B
to expand. Remove assembly from the jig.
B
A
B
E
D
C
F
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