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
