Instruction manual

Huck-Spin® Series Tooling (HK1076) Alcoa Fastening Systems
28
Refer to appropriate illustrations
and general maintenance. The
following procedure is for com-
plete assembly. Always replace
seals, wipers, O-rings and back-up
rings of disassembled subassem-
blies.
Cylinder & Piston Assemblies
(Figures 28-32)
1. Inspect and clean out seal
grooves at base of Cylinder.
2. Liberally apply lubricant to O-
rings and Step Seals, and install
as shown in Figure 29.
NOTE: Before installing
Step Seals, be sure that
notch of seal is oriented
toward inside of Cylinder as
shown.
3. Inspect and clean out Piston
seal groove. (Figure 30)
4. Liberally apply lubricant to O-
ring, and install in groove.
5. Slightly stretch GLYD Ring seal (no more
than needed for installation), liberally apply
lubricant to it, then install it over O-ring in
Piston groove.
6. Slide Glyd Ring Compressor, Huck part num-
ber 123496, completely over Piston to
compress the GLYD Ring into the Piston
groove.
7. Slide Dump Valve through Piston flange.
Important: Flats of Valve must be posi
-
tioned toward the unthreaded end of
Piston as shown.
Inspect and clean
out Seal grooves.
Install Step Seals
so that notches of
Seals are toward
inside of Cylinder.
O-rings
Step
Seals
Figure 29
Dump Valve
flats must
face rearward
Slide GLYD Ring
Compressor
completely across
Piston to press
GLYD Ring into
the Piston groove
O-ring
GLYD Ring
123496 GLYD
Ring Compressor
Figure 30
A
A
SSEMBLY
SSEMBLY