1/4 IN. DR. MINI AIR RATCHET
OWNER’S MANUAL
Stock Number M637
SPECIFICATIONS:
Square Drive (IN.).....................................1/4
Working torque (FT./LBS) .............................5-12
Air pressure (P.S.I.) ...................................90
Average air consumption (C.F.M.) .........................4
Free speed (R.P.M.) ..................................250
Bolt capacity (IN.) ....................................5/16
Air inlet (N.P.T.).......................................1/4
Hose size (I.D.)....................................3/8 in.
Weight (LBS) ........................................1.2
Specifications are subject to change without notice.
WARNING!
READ, UNDERSTAND AND FOLLOW ALL INSTRUCTIONS AND
WARNINGS BEFORE OPERATING THIS TOOL. FAILURE TO DO
SO MAY RESULT IN PERSONAL INJURY AND/OR PROPERTY
DAMAGE AND WILL VOID WARRANTY.
REPLACEMENT PARTS
INDEX DESCRIPTION QTY INDEX DESCRIPTION QTY
1 Housing 1
2 Anvil Bushing 1
3 Trigger 1
4 Trigger Pin 1
5 O-ring 1
6 O-ring 1
7 Valve Stem 1
8 Spring 1
9 Air Regulator 1
10 O-Ring 1
11 O-Ring 1
12 Nut 1
13 Muffle Cover 1
14 Air Inlet 1
15 Bearing 1
16 End Plate 1
17 Set Pin 2
18 Rotor 1
19 Rotor Blade 4
20 Cylinder 1
21 Rotor Spacer 2
22 Front Plate 1
23 Set Pin 1
24 Bearing 4
25 Thread Ring Gear 1
26 Planet Gear 3
27 Gear Pin 3
28 Gear Plate 1
29 Clamp Nut 2
30 Bushing 1
31 Ratchet Housing 1
32 Needle Bearing 1
33 Crank Shaft 1
34 Drive Bushing 2
35 Ratchet Yoke 1
36 Reverse Knob 1
37 Spring 2
38 Lock Pin 2
39 Washer 1
40 Ratchet Anvil 1
41 Spring 2
42 Steel Ball 2
43 Pin 1
44 Thrust Washer 1
45 "C" Retainer Ring 1
46 Spring 1
47 Steel Ball 1
48 Ratchet Pawl 1
© Copyright 2017 WILMAR CORPORATION,
P.O. Box 88259 Tukwila, WA 98138