•
Remove the MCS Valve Assembly
(
31
)
and Spring (
30
)
from the rear of the Head Assembly (
12
).
•
Once removed check the condition of Rod Seal (
12
) and discard if damaged.
•
Check the condition of Lip Seal (
18
)
,
Lip Seal (
21
)
and Bearing Tape
(
20
)
on the Piston assembly
(
19
).
Remove and discard if damaged.
•
Check the condition of the O ring (
24
)
on the Ejector Nozzle
(
23
). Remove and discard if damaged.
•
It should not be necessary to remove the Ejector Nozzle (
23
)
from the Piston Assembly (
19
).
Assemble in reverse order noting the following points:
•
Place Rod Seal (
16
)
onto the insertion rod (07900-00685) ensuring correct orientation.
•
Locate the guide tube (07900-01085) into the rear of the Head Assembly (
12
) then push insertion rod,
with the Rod Seal in place, through the guide tube to install the seal in the Head Assembly.
•
Pull the insertion rod out followed by the guide tube.
•
The chamfered edge of the Seal Retainer (
17
) must face forward with the gap in the two o’clock position.
•
Ensuring the correct orientation, lubricate and fit Lip Seal (
18
), Lip Seal (
21
)
and Bearing Tape (
20
) onto
the Piston Assembly (
19
).
•
Screw the piston sleeve (07900-01086) into the rear of the Head Assembly (
12
)
and lubricate the cylinder
bore. Attach the piston bullet (07900-00670) onto the Piston Assembly (
19
) thread. Lubricate the piston
bullet and the Piston Assembly shaft and the seals.
•
Push the Piston Assembly (
19
)
with the seals
through the piston sleeve and into the rear of the Head
Assembly (
12
). The Piston Assembly should be inserted into the Head Assembly as far as it will go. Remove
the piston bullet from the Piston Assembly and remove the piston sleeve from the Head Assembly.
•
Pulling Head Adapter (
1o
) must be fully tightened onto the Piston Assembly (
19
) before tightening
Locknut (
8
)against it.
•
Reprime in accordance with the instructions on page #.
6.1.3 Air Chamber and Pneumatic Piston Assembly
•
Clamp the Head Assembly (
12
)
of the inverted tool in a vice with soft jaws.
•
Remove the Air Chamber Sleeve (
57
).
•
Using a wrench, unscrew the Air Chamber (
56
)
including O Ring (
55
)
and remove from the Handle Base
(
46
)
and Pneumatic Piston Assembly (
52
).
•
Remove the Pneumatic Piston Assembly (
52
) together with Guide Ring (
52a
), O Ring (
52b
)
,
Lip Seal (
52c
)
and the Exhaust Valves (
52d
)
to (
52g
).
•
Engage the seal extractor (07900-00677) into the Intensifier Seal Assembly (
51
) and then withdraw this
from the Hydraulic tube of the Head Assembly (
12
).
Assemble in reverse order noting the following points:
•
Seals should be checked for damage and replaced as necessary. Lubricated pneumatic seals with
Molykote 55M grease (07992-00075) and hydraulic seals with Molykote 111 grease (07900-00755).
•
Ensure that the Air Chamber (
56
)
is screwed fully into the Handle Base (
46
) so that there are no visible
gaps between the parts.
6.1.4 Air Valve, Handle Base and Handle Assembly
•
Remove the Air Chamber (
56
) and Pneumatic Piston Assembly (
52
) as described above.
•
Using spanner (07900-00672) and location spigot assembly (07900-00706), unscrew Clamp Nut (
50
) and
remove together with the Top Plate (
49
), Air Tube Assembly (
54
) and Valve Rod Assembly (
53
).
•
Remove the Handle Base (
46
)
from the Handle Assembly
(
33
).
•
Push the Valve Seat (
48
) from the Handle Base (
46
), together with O Rings (
47
).
•
Pull the Valve Spool Assembly (
37
), (
38
), (
40
) and (
41
) form the Handle Assembly (
33
). Remove O Ring
(
39
) from the Handle counterbore.
ENGLISH
19
