MODEL 244/244OS TOOL
HUCK FASTENERS
10
10. 244 Model: (Fig. 1 & 9)
Unscrew End Cap (21) from Head, Plug & Seat
Assembly (15) with 1 9/16 open end wrench.
244OS Model: (Fig. 10)
Loosen and remove Locknut (92) from Piston Stop
(89). Unscrew Piston Stop (89) from End Cap (21),
then unscrew End Cap from Head, Plug & Seat
Assembly (15) with 1 9/16 open end wrench.
11. 244 Model: (Fig. 2a)
Place Spacer (123112-2) on piston and thread on
Piston Assembly Tool (123111-2) onto piston. Tap or
press piston assembly out of head.
NOTE:
Piston will push out front and rear gland
assembly.
244OS Model: (Fig. 2b)
Place Spacer (123112-8) on piston and thread on
Piston Assembly Tool (123111-8) onto piston. Tap or
press piston assembly out of head.
NOTE:
Piston will push out front and rear gland
assembly.
12. Remove Nose Adapter (9) from front of Head, Plug &
Seat Assembly (15). (Figs. 1 & 9) (Fig. 10 for 244OS
Model).
13. If Seat (74) is damaged, contact your Huck
representative. If Seat Assembly (80) is damaged, it
can be removed by using Seat Removal Tool (126136)
optionally available.
NOTE
: Seats should not be reused. They should be
replaced.
14. With a small punch and hammer, drive Roll Pin (4) that
retains the Trigger (5) from the Handle (1). Remove
Trigger Pin (3). Remove ball cable end from Throttle
Arm (68) and pull Cable Assembly (2) out of Handle
(1). (Fig. 3)
15. Remove Pivot Screw (64) and Lever Guard (94) from
Throttle Arm (68). Remove Throttle Arm. Pull Throttle
Valve (67) out of cylinder. Remove Spring (65) (Fig3).
16. Remove Bleed Plug (40) from handle (Fig3).
17. Hold tool inverted in vice. Unscrew three Button Head
Screws (55) with 1/8 hex key (Fig3).
18. Remove Bottom Plate (56), Gasket (54) and Muffler
(57) (Fig3).
19. Remove Retaining Ring (62) from Cylinder Assembly
(51) (Fig3).
20. Install Screws (55) into Cylinder Head (60). Carefully
pry under screws to remove cylinder head.
21. Push air piston all the way down in cylinder, lay tool on
its side. Hold Locknut (58) with a 9/16 socket and
extension and with 7/64 hex key, remove piston Screw
(34).
22. Grip Locknut (58) under Air Piston with pliers and pull
piston and rod assembly from handle and cylinder
assembly.
CAUTION:
Care must be taken not to scratch piston
rod or cylinder during removal.
24. Turn cylinder and handle upside down and secure in a
vise.
25. With a 1 3/8 socket and extension, remove Gland
Assembly (41). Handle and cylinder will now separate
(Fig3).
123112-8 SPACER
123111-8
PISTON ASSEMBLY
TOOL
Fig. 2a
Fig. 2a
Main Piston Tool Assy
Kit (123110-11)
Fig. 2b
Fig. 2b
Main Piston Tool Assy
Kit (123110-10)
SPACER
123112-2
PISTON ASSEMBLY
TOOL
123111-2
5
4
3
2
1
86
23
64
63
62 61 60 59 58
57
56 55
54
53
52
51
50
41
40
39
33
SECTION A-A
C
C
A
A
66
65
66
67
68
34
94
FIG. 2
FIG. 3
