10
255 Blankdraulic Installation Tool (HK1014)
Disassembly (continued)
15. Remove the muffler end cap, bottom exhaust
gasket, muffler, and O-ring. (Figure 3)
16. Tap the cylinder head down into the cylinder
assembly and remove the retaining ring.
17. Screw button-head screws into the cylinder head,
and carefully pry on them to remove cylinder head.
18. Push air piston all the way down in the cylinder,
remove tool from vise, and lay on its side. Hold the
self-locking nut with a 9/16” socket and extension,
and use a 7/64” hex key to remove the piston
screw.
(Figures 4 & 9)
19. Secure the cylinder assembly and handle upside-
down in a vise again.
20. Use pliers to grip the self-locking nut and pull out
the air piston and rod assembly from the handle and
cylinder assemblies.
21. Use a 1-3/8” socket and extension to remove the
gland assembly. The handle and cylinder assemblies
will now separate.
22. Push the piston rod out of the handle. (Figure 3)
23. Remove the Retaining Ring and Spacer (P/Ns
505939
and
123904
) from the gland assembly, then
remove the Polyseal (P/N
506611
). (Figure 9)
The tool has been properly disassembled. Store all
re-usable
parts (screws and disassembled components)
in a clean, dry area.
CAUTION: Do NOT re-use seals, wipers, or
rings; irreparable tool damage could occur.
Discard these parts and use replacements
(see
Kits & Accessories
).
CAUTION: Take care to not scratch the
piston, rod, or cylinder when removing.
504127 Button
Head Screw (
3
)
116585 Muffler
End Cap
505025 Retaining Ring
126941-2 Gasket
115554 Muffler
500777 O-ring
111959 Cylinder Head
115556 Cylinder Assy.
116173 Gland Assy.
125641 Handle & Sleeve Assy.
500873 O-ring
100315 Air Piston
112414 Piston Rod
501460 Quad Ring
(See Figure 10)
(See Figure 10)
Figure 3
CAUTION: Take care to not scratch the
cylinder when removing.
CAUTION: Use a plastic or wooden drift to
avoid damaging the handle bore.
O-ring
500823
(
Note orientation
of Polyseal.
)
Polyseal
506160
Front Gland
126081
Wiper Housing
123138
Wiper Seal
505894
Back-up Ring
126088
Assembly Bullet
123111-1
Spacer
123112-1
Figure 2
