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18 ► IW12 User Manual
ITEM
NO.
PART
NO. QTY DESCRIPTION
41 12176 4 CAPSCREW, 5/16-18 × 7/8 HEX
SOCKET HD
42 08067 1 HAMMER
43 20257 1 HAMMER FRAME
44 08069 2 HAMMER PIN
45 22728 1 ANVIL – 3/4 IN. SQUARE DRIVE
STANDARD
20263 1 ANVIL – 3/4 IN. SQUARE DRIVE 12-IN.
EXTND
46 29087 1 HAMMER CASE ASSY
22729 1 IMPACT MECHANISM – HEAVY DUTY
47 20258 1 HAMMER CASE BUSHING (LAND)
35445 1 HAMMER CASE BUSHING
(UNDERWATER)
48 00149 1 O-RING (LAND & UNDERWATER) *
49 20262 1 RETAINING RING
50 21408 1 THRUST BEARING RACE
51 09878 1 THRUST BEARING
52 20259 1 RETAINER
53 00936 2 ADAPTER, 1/2 SAE TO 3/8 NPT MALE
54 06971 2 LOCKNUT, 10-24
55 17275 1 DECAL, GPM
56 03693 1 DECAL, CLOSED-CENTER
06345 2 PLASTIC PLUG (NOT ILLUSTRATED)
08073 1 SEAL KIT – LAND MODEL
22729 1 IMPACT MECHANISM – HEAVY DUTY
35451 1 IMPACT MECHANISM – HEAVY DUTY
U/W
* Part of Seal Kit
ITEM
NO.
PART
NO. QTY DESCRIPTION
1 73311 1 MAIN HOUSING ASSY(INCL ITEM 3)
ALSO INCL BALL STOP 19454 AND
STEEL BALL 51185 NOT PICTURED
2 08012 1 NAME TAG
3 08014 2 DU BUSHING – GARLOCK 14DU12
4 07988 1 SPRING
5 07982 1 SPRING REST
6 07985 1 SPRING
7 07993 1 RELIEF POPPET
8 07986 1 RELIEF SEAT
9 73046 1 VALVE SPOOL
10 00145 4 LOCKWASHER, 5/16-IN.
11 06533 1 O-RING *
12 22063 1 SPOOL CAP (UNDERWATER)
13 00026 1 O-RING *
14 23678 1 HEADED PUSH PIN
15 07996 1 TRIGGER
16 00025 1 CAPSCREW, 10-24 × 1-3/4 HEX
SOCKET HD
17 08002 1 REVERSING SPOOL
18 01211 2 O-RING *
19 08015 2 BACK-UP RING *
20 08016 1 RETAINING RING
21 04939 1 LEVER
22 00720 1 SETSCREW, 1/4-20 × 3/8
23 07997 1 MOTOR CAP ASSY – INCL ITEM 3
24 07989 1 IDLER GEAR ASSY – INC. ITEM 25
25 07978 1 IDLER GEAR BUSHING
26 07991 1 IDLER SHAFT
27 08001 1 MAIN SHAFT
28 00717 1 O-RING *
29 00429 1 NUT, 5/16-18
30 19453 1 RELIEF ADJUSTMENT SCREW
31 00682 8 CAPSCREW, 3/8-16 × 1-3/4 HEX
SOCKET HD (STAINLESS STEEL,
UNDERWATER)
32 01459 8 LOCKWASHER, 3/8
33 08023 1 O-RING *
34 22064 1 WIPER *
35 08017 1 O-RING *
36 09396 1 BACK-UP RING *
37 07987 1 BACK-UP WASHER
38 00166 1 RETAINING RING
39 08019 2 THRUST RACE
40 08020 1 THRUST BEARING
HEAVY DUTY IMPACT MECHANISM PARTS LIST
HEAVY DUTY PARTS LIST