JCB Ram Sealing Procedure
To fit new rod seal:
Use seal fitting tool (892/00334) to fit rod seals, the size
(diameter) and position of pins
A
is determined by the
diameter and radial width of the rod seal being fitted.
The pins are screwed into threaded holes in the tool body,
the spacing of the holes is designed to suit small or large
diameter rod seals.
1
Open the tool as shown at
B
and insert the new rod
seal, the seal must be fitted behind the two front pins
but in front of the rear pin as shown.
Note
: Make sure the seals are fitted the correct way round,
as shown at
P
and
Q
.
2
Close the tool as shown at
C
. The seal must form a
reniform (kidney shape).
3
Before fitting the rod seals check the seal grooves are
free of contamination and sharp edges,
4
Locate the seal in the end cap groove, shown at
D,
when the seal is in position, open the tool to release the
seal. Make sure the seal is correctly installed in its
groove and remove the tool.
5
Fit rod wiper seal
P
into seal groove. Make sure the seal
is correctly installed as shown.
Note
: Some rod wipers, ie power track rod, may use a metal
encased seal which is pressed into the housing. Care must
be taken to ensure the seal is square before it is pressed in.
Sleeve
E
must be used to protect the rod seals from damage
when fitting end cap onto the piston rod. There are various
sizes of sleeve, see
Service Tools
. Make sure the hexagon
on the end cap is towards the eye end of the rod.
89 - 1
Section E
9803/3280
Section E
89 - 1
Issue 1
Hydraulic Rams
B
C
D
A
161750
Q
P
153212
A187361
E
