11
2013 & 2014 series Pneudraulic Installation Tools
(HK978)
Disassembly (continued)
PISTON ASSEMBLY AND FRONT GLAND ASSEMBLY
REMOVAL
1. Thread the Polyseal Insertion Tool into the head.
2.
2013 Series
:
Thread the Piston Assembly Tool
(P/N
123111-5
) onto the piston.
2014 Series
:
Thread the Piston Assembly Tool
(P/N
123111-12
) onto the piston.
3. Use a brass drift to push out the piston from the
front. Allow clearance, with stand-off, as the piston
leaves the tool.
4. Remove the Piston Assembly Tool, spacer, and
Polyseal Insertion Tool.
NOTE
:
Inspect the piston for wear, scoring, and
damage. Replace if necessary.
5. Inspect all seals and parts; replace if necessary.
6. Remove trigger cable assembly by driving out the
pin with a punch. Remove trigger pin to disconnect
the cable from trigger.
CAUTION: Take care to not scratch the
piston, rod, or cylinder when removing.
CAUTION: If piston and gland seals must
be reused: during disassembly, install the
Polyseal Insertion Tool (P/N 121694-202) in
the rear of handle to prevent damaging the
seals.
Figure 2
