Scag Power Equipment ST 12B Technical Manual page 24

TRANSAXLE ASSEMBLY
Ref.
No.
Part No.
Description
ST
12B
ST
13K
ST
17KA
ST
18B
ST
18KH
1 770071A
Case, Transaxle
X X
X X X
2 778136
Gear, Spur (15 Teeth)
X X
X X X
2A
3
3A
778145
778199
786071
Gear, Spur (12 Teeth)
Gear, Spur (15 Teeth)
Spacer
X X
X
X
X
X
X
X
4
778200 Gear, Spur (20 Teeth)
X X
X X X
5 778202 Gear, Spur (28 Teeth)
X
X X X X
6 778203 Gear, Spur (22 Teeth)
X X X X
X
7 778205 Gear, Spur (30 Teeth)
X X X
X X
8 778206
Gear, Spur (35 Teeth)
X X X
X X
9
10
778204
778201
Gear, Spur (25 Teeth)
Gear, Spur (25 Teeth)
X X X
X
X
X
X
X
11
11A
778207
786072
Gear, Spur (37 Teeth)
Spacer
X
X
X
X
X X
X
12
778154
Gear, Bevel (42 Teeth)
X X
X X
X
13 784266 Collar, Shift
X X X X X
14 786083 Sprocket (18 Teeth)
X X X X
X
15 786082 Sprocket (9 Teeth)
X X X
X X
16 776204 Shaft, Counter
X X
X X X
17
778176 Bevel Pinion. Input
X X X
X X
18
786074
Spacer
X X
X X X
19 778138 Pinion, Output
X X X X
X
20 778139 Gear, Output
X X X X
X
21 790003 Disk, Brake
X X X
X X
22 792089A Key
X X
X X X
23 780071 Bearing, Thrust
X
X X X X
25 788040 Ring, Retaining
X X X X
X
26 780105A Bushing, Flanged
X X X
X X
27 780118A
Bushing, Flanged
X
X X X X
28 786081 Chain, Roller (No. 41 Chain, 24 Links)
X X X X
X
29 780072 Washer, Thrust
X X X X
X
30
780122 Bearing, Needle
X X X
X X
31
792077
Ball, Steel
X X
X X X
32 780139 Washer, Thrust
X X X X X
33 792078 Screw, Set, 3/8-16 x 3/8
X X X
X X
34
35
792079
792073
Spring
Screw, Hex Hd. Thread Forming,
1/4-20 X 1-1/4
X
X
X
X
X
X
X
X
X
X
36 780108 Washer, Thrust
X X X X
X
37 780121 Bearing, Ball
X X X
X X
38 780113 Washer, Flat
X X
X X X
39 780119 Bearing, Ball
X X X X
X
41
788051 Ring, Square Cut
X X X
X X
42
788057
Ring, Square Cut
X
X X X X
43 780112 Bearing, Needle
X X X X
X
44 780114
Washer, Flat
X
X X X X
45t
780114
Washer
X X X X X
46 788053
Ring, Square Cut
X X
X X X
47 772084
Cover, Transaxle
X X X
X X
48 784290
Rod & Fork Assembly, Shift
X X X X X
49 776135 Shaft, Input
X X X X
X
50 776183A
Shaft, Brake
X
X X X X
51 790007
Plate, Brake Pad
X X X X
X
52
790006 Pad, Brake
X
X X X X
53 786026 Pin, Dowel
X X X X
X
54
792075 Locknut, 5/16-24
X X
X X X
55 792076 Washer, Flat
X X X X X
56 790016
48003
48160
Lever, Brake
Transaxle Assy,, Complete
Transaxle Assy., Complete
X
X
X
X
X
X
X
X
X
X
t Required only with these axles that have machined down diameter in snap-ring area:
774558 - 25-1/4" Long
774506 - 13-1/4" Long
774621 - 22-5/8" Long
774620 - 12-7/8" Long
25