Huck 2480 SERIES, Instruction Manual, Page: 18 / 34

2480 & 2481 series Tooling
(HK970)
Alcoa Fastening Systems
18
Refer to Figures 8, 8a, 8b, 8c, 8d, 9, 10 and 11 and
MAINTENANCE : General Precautions - - clean out
O-ring grooves and reinstall perishable parts
(seals, etc.) - - see below.
Use service kit,
2480KIT .
NOTE - The small inner ring insert of
POLY-SEALS must remain positioned as
shown. If it is forced out of seal body, it
may be pinched against gland inner edge.
A damaged seal will permit leakage.
1. Thinly coat SUPER 0-LUBE, or equiv
alent, on seals and mating surfaces.
Assemble O-rings and back-up rings
to piston, front gland, and rear gland
as shown in Fig. 8. See caution above
- - press POLY-SEAL into front gland
housing.
Figure 8
2. See FIGURE 8a - - thread piston
assembly tool onto piston. Lubricate
POLY-SEAL inside diameter and exter
nal diameters of piston and piston
assembly tool. Press evenly against
gland cap to slide front gland assem
bly over piston assembly tool and into
piston. Slide wiper onto piston as
shown. Install dump valve into piston
as shown.
3. Thread piston insertion tool into cylin
der. Lightly coat internal surfaces of
tool and cylinder with lubricant -
-
FIGURE 8a.
Figure 8a
A
A
SSEMBLY
SSEMBLY
CAUTIONS:
Do not use TEFLON®* tape on pipe
threads. Pipe threads may cause tape
to shred resulting in tool malfunction.
(Slic-Tite is available in stick form as
Huck P/N 503237.)
Insure tool has been properly assem-
bled prior to use.
CAUTION: Always make sure the large
flats of the dump valve face the rear of
the tool. (See Fig. 8a)
CAUTION: Be carefull that POLY-SEAL
does not hang up on the edge of the
piston chamfer. Seal will be damaged
and leakage may result.