![background image](http://html1.mh-extra.com/html/jcb/js130/js130_service-manual_3610745367.webp)
75 - 5
Assembly
Note:
See
Torque Setting Figures
.
Clean each part in a suitable solvent and dry using
compressed air.
Inspect all parts and renew as required.
Care must be taken not to let dust or dirt adhere to parts
after cleaning and that parts do not become dented,
scratched or damaged.
Fit new 'O'-rings, and seals when assembling together with
a new back up ring.
Take care to install the back up ring in the proper position.
Apply grease or hydraulic oil to all new oil seals and 'O'-
rings, and clean hydraulic fluid to all sliding parts before
installation.
1
Cylinder head assembly.
a
Assemble the bushing
A
using a jig
B
and
press
C
.
b
Assemble the wiper ring
D
using a jig
E
and press
C
.
c
Assemble the back up ring
F
and U-ring
G.
2
Buffer ring assembly.
Note:
After installing the square ring
K
in the groove, bend
the buffer ring
FF
into a U-shape
J
and set it in the groove
H
, then press on the outer circumference of the ring to fit it
into place. Bending the ring in too small a radius causes
wrinkles which remain in the ring after installation. Keep the
bending radius at 6 mm or greater. Make sure there are no
wrinkles in the ring after installation.
Note:
Be careful to install the seal in the proper direction.
Installing it backwards causes extremely high pressure to
build up between it and the U-ring and could cause
deformation of the cylinder head.
a
Install the snap ring
M
to prevent the bushing
A
from coming off.
Section E
Hydraulics
9803/6410
Section E
75 - 5
Issue 1
Hydraulic Rams
C
B
A
E
D
G
F
C
FF
J
M
K
H
A
FF
Summary of Contents for JS130
Page 65: ...Section 3 Section 3 9803 6410 Issue 1 9 1 9 1 Routine Maintenance Component Location Diagram...
Page 118: ......
Page 119: ...3 1 Section C Electrics 9803 6410 Section C 3 1 Issue 1 Layout Operator s Cab...
Page 142: ...5 3 Section C Electrics 9803 6410 Section C 5 3 Issue 1 Pump Control FLOW CHART...
Page 207: ......
Page 209: ......
Page 210: ...3 4 Section E Hydraulics 9803 6410 Section E 3 4 Issue 2 Schematics Shuttle Block...
Page 532: ...Contents Page No Technical Data 1 1 i Engine 9803 6410 i Issue 1 Section K Section K...