Cub Cadet 53AB5BBP750 User Manual
Hydrostatic Zero-Turn
Riding Mower
MODEL
23HP
53AB5BBP750
50" Stamped Deck
ILLUSTRATED PARTS LIST
This Page Left Blank Intentionally
2
TABLE OF CONTENTS
50" Formed Cutter Deck . . . . . . . . . . . . . . . . . . . . . . . 4 and 5
Hydro Pump Assembly. . . . . . . . . . . . . . . . . . . . . . . . 6 and 7
Brake Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 and 9
Fuel Tank Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Rear Bumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Front Caster Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Wheel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Control Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 14 and 15
Drive Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Seat Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
23 HP Kohler Engine Assembly . . . . . . . . . . . . . . . 18 and 19
23 HP Electrical Engine Assembly . . . . . . . . . . . . . . . . . . . 20
Floor Panel Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Lift Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 and 23
Assembly Pump Right Hand. . . . . . . . . . . . . . . . . . . . . . . . 24
Assembly Pump Left Hand . . . . . . . . . . . . . . . . . . . . . . . . . 25
Frame Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3
50" Formed Cutter Deck - Figure 1
5
32
37
48
55
46
29
28
6
19
10
30
25
2
43
11
19
44
57
54
6
14
50
58
20
51
33
62
64
37
3
18
31
59
53
24
21
19
34
33
38
47
13
62
1
15
22
14
9
59
61
36
27
6
35
17
65
49
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6
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6
67
56
60
68
39
66
17
69
70
62
23
42
45
63
40
6
8
16
7
6
12
12
41
52
26
GD: 02000420-12/14/04
4
50" Formed Cutter Deck - Parts List for Figure 1
Ref.
No. Part No. Description Qty.
1 00003107 Cotter Pin, .125 Dia x 1.0 2 36 01008593 Idler Arm Assembly 1
2 00008495 Capscrew, 3/8-16 x 1-3/4 1 37 01008620 Self Tapping Screw 5/16-18 x .750 6
3 00012226 Grease Fitting, 1/4-28, 90° 1 38 00012428 Hex Nut, 1/2-13, Insert Lock 4
4 00012470 Cable Tie, 3/16 x .05 x 7.4 1 39 01009102 Hinge Pin, .375 x 14.06 1
5 00013406 Hex Cap Screw, 5/16-18 x 3/4 1 40 01009253 Flat Washer, .390 x 1.5 x .134 1
6 00022560 Hex Nut Flange lock, 3/8-16 12 41 01009705 Chute Deflector 1
7 00027279 Nut 7/16-14, Nylock 1 42 01010168 Hi-Lift Blade, 17.9 3
8 00034167 Hex Cap Screw, 3/8-16 x 5.00 1 43 01010173 Spacer, .39 ID x .875 OD x 1.00 1
9 01005011 V-Belt, B-Section 1 44 02000407 Deck Assembly 50" 1
10 00060078 Grease Fitting, 1/4-28 x 3/16 1 45 02000402 Flange Hex Nut, 3/4-16 3
11 01009635 Extension Spring, 1.0 OD x 5.00 1 46 02000417 Spring Tension Rod Assembly 1
12 01000372 Carriage Bolt, 3/8-16 x .75 Lg 5 47 02000481 Hex Cap Screw, 3/4-16 x 8.00 1
13 01000375 Roller Pin, 1/2 Dia x 7.31 Lg 1 48 02000626 Left Hand Belt Cover 1
14 01000385 Front and Rear Roller 3 49 02000667 Right Hand Belt Cover 1
15 01000387 Torsion Idler Spring 1 50 618-3129B Blade Spindle Assembly 3
16 01000393 Flat Washer, .469 ID x .875 OD x .105 1 51 01004109 Tension Rod Stop Bracket 1
17 01000628 Screw, TT, 1/4-20 x .5, Hex Index Washer 7 52 703-3511 Finger Guard 1
18 01000635 Hex Flange Lock Nut, 5/16-18 1 53 710-1852 Spindle Bolt 3/4-16 x 5.37 2
19 01000723 Flat Washer, .406 ID x 1.0 OD x .105 3 54 712-0641 Hex Nut, M16-1.5 2
20 01001169 Short Roller 2 55 721-04041 Adaptor, Water Nozzle 1
21 01001745 Pin, 5/8 Dia x 1.2 Lg 4 56 703-1890 Deck Wheel, 5.00 Dia. 2
22 01002010 Carraige Screw, 3/8-16 x 1.25 1 57 736-0760 Lock Washer, 17 x 23.8 x 1.9 2
23 01002564 Spacer, .76 ID x 2.00 OD x .477 3 58 737-04003B Nozzle, Deck Water 2
24 01003123 Spacer, .812 ID x .218 Lg. 2 59 737-3000 Grease Fitting 3
25 01003245 Spacer, .39 ID x .625 OD x 2.75 1 60 738-3056 Shoulder Screw .498 x 1.53 2
26 01003253 Torsion Spring 1 61 738-3172 Shoulder Screw .68 x 2.11 1
27 01004081 Flat Pulley with Flanges 1 62 748-3065 Spindle Spacer 6
28 01004101 Idler Pulley, 4.06 OD with Deep Flange 1 63 750-3119 Spacer .406 ID x 1.00 OD x 0.38 1
29 01004118 Shoulder Screw, .50 x .27 Lg; 3/8-16 1 64 02000653 V-Belt, 1/2 x 91 LG 1
30 01004751 Roller Pin Rod 1 65 02000668 Skirt, Center, 50" 1
31 01005201 V-Pulley, 4.75 OD 1 66 02000669 Skirt, Right Hand, 50" 1
32 01006181 Idler Arm Assembly, Flat Top Bearing 1 67 783-04470 Chute Mounting Bracket 1
33 01006535 Pulley, A Sect x 4.90 3 68 777S30145 Decal, Danger Hands & Feet 1
34 01006680 Spacer, .760 ID x 1.75 OD x 1.969 1 69 02000813 Spindle Plate 3
35 01008456 Spacer .760 ID x 1.5 OD 1 70 02000762 Self Tapping Screw 5/16-18 x 1.00 12
Ref.
No. Part No. Description Qty.
5
Hydro Pump Assembly - Figure 2
5
3
10
17
19
15
14
6
7
4
16
11
1
8
18
9
8
13
12
GD: 01004266-03/29/01
6
Hydro Pump Assembly
Ref.
No. Part No. Description Qty.
1 00006144 Hex Cap Screw, 3/8-16, 1 4
2 00012529 Protective Hose Cover (not shown) 1
3 00013131 Hex Cap Screw, 1/4-20, .75 2
4 00017665 Filter Head 3/4 includes: 1
01004166 33 Micron Filter
5 00022560 Hex Nut Flange Lock, 3/8-16 8
6 00030261 Cap, Hydro Oil Tank 1
7 00031994 Decal Oil Only 20W50 1
8 01000372 Carriage Bolt, 3/8-16 x .75 LG. 4
9 01004516 Hydraulic Tank Assembly 1
10 01001650 Mounting Plate Oil Filter 1
11 01004192 Oil Pan Drain w/ Seal and Plug 1
12 01004267 Gearbox to Tank Hose Assembly 2
13 01004268 Tank to Filter Hose Assembly 1
14 01004269 Filter to Left Hand Pump Hose
15 01004270 Filter to Right Hand Pump Hose
16 01004272 Fitting, 45° 1
17 01006959 Fitting Tee, 3/4 x 1/2 x 1/2 1
18 01004702 Fitting Elbow, 1/2 x 1/2 1
19 01006353 Fitting, 3/8 NPT, 1/2 Flare 2
- Parts List for Figure 2
1
Assembly
1
Assembly
NOTE: Lubricant, SAE 20W50 Gallons, 3.25
7
Brake Assembly - Figure 3
25
33
16
9
29
15
7
22
4
5
2
1
17
21
13
12
30
23
18
10
11
24
8
14
19
26
20
6
27
28
GD: 01001609-04/21/03
8
Brake Assembly
- Parts List for Figure 3
Ref.
No. Part No. Description Qty.
1 00006131 Hex Nut, 3/8-16 4
2 00009678 Clevis Pin, 3/8 x 1, 1/8 2
3 00011888 HHCS, Standard, 3/8-16 x 3-1/2 1
4 00021955 Yoke, 3/8-16, Female 2
5 00021956 Hair Pin, 3/8"-1/2" 2
6 00012226 Grease Fitting, 1/4-28, 90° 1
7 01000100 Shoulder Nut 2
8 00022560 Nut, Flange Lock, 3/8-16 3
9 01000628 Screw, TT, 1/4-20 x .5, Hex Index
Washer
10 01000723 Flat Washer, .406 ID x 1.0 OD x .105 4
11 01000872 Flat Washer, .411 x 1.25 x .100 2
12 01002751 Spacer, .39 ID x .63 OD x 1.75 1
13 01002771 Hair Pin, INT .072 x 1.12 Lg. 4
14 01002772 Spacer, .375 x .50 x 1.02 Lg. 1
15 01002980 Mounting Shaft, Bellcrank 1
16 01003591 Holder Shaft, Park Brake 2
17 01003410 Rod Connector, 3/8 OD x 33 2
18 01003593 Brake Bracket 1
19 01008886 Rod Brake, Connect To Handle 1
20 01003417 Connecting Rod, 3/8 OD x 5.75 2
21 01003595 Weldment, Brake Handle 1
22 01003574 Brake Spring, Neutral 2
23 01003575 Brake Spring, Force 2
24 01003576 Brake Hose, Center 2
25 01003716 Grip, Park Brake 1
26 01003730 Weldment Hub, Brake Bearing
Includes:
01004265 Bearings 2
27 01002511 Jam Nut, 3/8-16 2
28 00012173 Lock Nut, Nylon Insert, 3/8-16 2
29 01006350 Shaft collar, .625 ID x 1" OD x .438 Lg 2
30 01008889 Park Brake Mounting Bracket 1
4
1
9
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