PARTS LIST FOR
SDR4A
SINGLE REDUCTION
RIGHT ANGLE COMPACT
SERIAL "A"
7 7
6 6
5 5
2 2
3 3
4 4
2 2
17
17
16
16
1 1
15
15
Fig.
Part
No.
No.
Description
1.
76021 Clamp Bushing
2.
SP75921 Gear Set 1/4"-28 Thread
3.
SP75919 Angle Head (Includes Figure 4 & 5)
4.
ESD1333 Grease Zerk
5.
75985 Ball Bearing (2)*
6.
75929 Input Shaft
7.
75947 Steel Spring Pin
8.
75909 Attachment Retainer
9.
75924 Body
10.
10042 Needle Bearing
11.
75903 Clamping Adapter
12.
14394 O-Ring
13.
75944 Retaining Ring
14.
74327 Bearing
15.
SP75931-3A Carrier (2100 RPM models only)
SP75931-3B Carrier (3500 RPM models only)
SP75931-2A Carrier (2500 RPM models only)
SP75931-2B Carrier (4700 RPM models only)
SP75931-1A Carrier (2800 RPM models only)
SP75931-1B Carrier (4100 RPM models only)
SP75931-1C Carrier (5700 RPM models only)
16.
77187 Planetary Gear Bearing (2100, 2500, 2800, 3500, 4100 &
4700 RPM models only)
17.
74304-18 Planetary Gears (2100 RPM models only)
74304-176 Planetary Gears (2500 RPM models only)
74304-17PM Planetary Gears (2800 RPM models only)
74304-16 Planetary Gears (3500 RPM models only)
74304-15 Planetary Gears (4100 RPM models only)
74304-14 Planetary Gears (4700 RPM models only)
74304-12A Planetary Gears (5700 RPM models only)
18.
74318-1 Gear Case
19.
74351-6 Sun Gear (4100 RPM models only)
74350-6 Sun Gear (4700 RPM models only)
74379 Sun Gear (5700 RPM models only)
20.
74321 Wear Plate
21.
65470 Ball Bearing
22.
74337 Front End Plate
23.
ME9A14 Steel Ball
24.
74333-7 Rotor (2800 RPM models only)
74333-9 Rotor (3500 & 5500 RPM models only)
74333-6S Rotor (4100 & 4700 RPM models only)
74333-5 Rotor (2100 RPM models only)
74333-6 Rotor (2500 RPM models only)
25.
SP74303 Vane Set
26.
74346 Roll Pin (2)*
27.
SP74367 Cylinder
28.
74366 Rear End Plate
29.
74364 Ball Bearing
Form ZCE846
SERIES DRILLS,
9 9
8 8
22
22
21
21
20
20
45
45
19
19
18
18
36
36
31
31
35
35
32
32
34
34
33
33
14
14
13
13
11
11
12
12
10
10
28
28
26
26
27
27
26
26
24
24
23
23
25
25
41
41
40
40
39
39
38
38
37
37
Fig.
Part
No.
No.
30.
21529 Snap Ring
31.
74400 Straight Housing
32.
74018 Torr Pin
33.
FAR25-11A Lever
34. SPPT100-300 Locking Lever Assy
35.
76030 Roll Pin
36.
74402 Grip
37.
67408 Warning Label
38.
IM3100-22 Valve Seat
39.
SDR-20 Tipper
40.
41217 Spring
41.
69007 O-Ring
42.
76025 Muffler Material
43.
74403 Exhaust Plate
44.
66244R Adapter
45.
30375 Grease Fitting
Not Shown:
Non-Reversing Motor Assembly (Includes Figures 22-31)
SP74333-5NA (2100 RPM models only)
SP74333-6NA (2500 RPM models only)
SP74333-7NA (2800 RPM models only)
SP74333-9NA (3500 and 5700 RPM models only)
SP74333-6SNA (4100 and 4700 RPM models only)
SP76006 Compact Right Angle Attachment 1/4"-28 Thread
28
*Order Quantity As Required
FURNISH CATALOG, SERIAL,
AND MODEL NUMBER
WHEN ORDERING PARTS
30
30
29
29
44
44
43
43
42
42
Assembly Requirements
Fig.
Torque / Specification
1
20 in-lbs
3
15-20 ft-lbs
8
50-60 in-lbs
11
15-20 ft-lbs
18
15-20 ft-lbs
44
20-25 ft-lbs
Description
(Includes Figures 1-10)
Threadlocker
Loctite 243
Loctite 243
None
Loctite 243
Loctite 243
Loctite 243
2021June15/C
Date