User guide

UT8420 1" H.D. Impact Wrench with 8” Extended Anvil
Page No 3
June 2011 Ver 1.00
Ref No Part No Description
1 8420-01 Hexagonal Screw (4)
2 8420-02 Washer (8)
3 8420-03 Hammer Case
4 8420-04 D Type Assistant Handle
5 8420-05 Hexagonal Screw (4)
6 8420-06 Washer (4)
7 8420-07 Gasket
8 8420-08 Oil Seal
9 8420-09 Anvil Bushing
10 8420-10 Retaining Ring
11 8420-11 O-Ring
12 8420-12 Anvil
13 8420-13 Hammer Bushing
14 8420-14 Hammer Dog
15 8420-15 Cam
16 8420-16 Hammer Cage
17 8420-17 Bearing
18 8420-18 Motor Housing
19 8420-19 Bearing (2)
20 8420-20 Front End Plate
21 8420-21 Rotor Blade (6)
22 8420-22 Rotor
23 8420-23 Pin
24 8420-24 Cylinder
Ref No Part No Description
25 8420-25 Rear End Plate
26 8420-26 Gasket
27 8420-27 Back Handle-Inside Trigger
28 8420-28 Regulator Pin
29 8420-29 Hexagonal Screw
30 8420-30 Washer
31 8420-31 Valve Bushing
32 8420-32 O-Ring
33 8420-33 Regulator Body
34 8420-34 Steel Ball
35 8420-35 Spring
36 8420-36 Throttle Valve Bushing
37 8420-37 Throttle Valve Pin
38 8420-38 Throttle Valve
39 8420-39 Spring
40 8420-40 O-Ring
41 8420-41 Air Inlet
42 8420-42 Air Inlet Screen
43 8420-43 Hose Connector
44 8420-44 Hexagonal Screw (4)
45 8420-45 Spring Pin
46 8420-46 Trigger Pin
47 8420-47 Trigger-Inside