13 - 4
Assembly (cont’d)
3
Coat shaft
C
with grease. Insert the shaft into roller
H
or
J
. Apply grease to new 'O'-rings
G
and install them on
shaft
C
.
4
Install new floating seals
F
into brackets
D
and
E
. Coat
the metallic face of each seal with engine oil.
5
Press mounting brackets
D
and
E
onto shaft
C
and
partially insert new locking wires
B
.
Wrap sealing tape around one plug
A
with one thread
remaining uncovered. Install this plug, but leave the
other one out until after pressure testing (step 6).
6
Connect compressed air pipe
V
to the vacant plug
A
port. Using extreme care to prevent water entering the
assembly, lower it into a tank of water.
Apply air pressure of 1.9 bar (28 lbf/in
2
) and check that
there are no bubbles leaking from the unit. If leakage
occurs dismantle and re-assemble, taking extra care
when fitting new seals.
Section J
Track and Running Gear
9803/6020
Section J
13 - 4
Issue 1
Bottom Roller
J
G
C
G
H
F
B
E
B
A
D
C
D,E
JS01600
A
A
Summary of Contents for JS70
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Page 189: ...Section E Section E Hydraulics 9803 6020 Issue 1 33 4 33 4 Control Valves Control Valve 291360...
