Cub Cadet 53AI8CTZ750 User Manual
Hydrostatic Zero-T urn
Commercial Riding Mower
Professional Turf Equipment
72" Fabricated Deck
ILLUSTRATED PARTS LIST
1
TABLE OF CONTENTS
Frame Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
72" Fabricated Cutter Deck . . . . . . . . . . . . . . . . . . . . . . . . . .4 and 5
72" Spindle Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 and 7
Hydro Hose and Pump Assembly . . . . . . . . . . . . . . . . . . . . 8 and 9
Brake Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 and 11
Fuel Tank Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Rear Bumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Front Caster Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . .14 and 15
Control Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 and 17
Wheel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Seat/Floor Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
37 HP Kawasaki Engine Assembly . . . . . . . . . . . . . . . . . .20 and 21
Electrical Assembly Kohler. . . . . . . . . . . . . . . . . . . . . . . .22 and 23
Lift Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 and 25
Decal Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
MODELS LISTED IN THIS MANUAL
37HP Tank
53AI8CTZ750
2
Frame Assembly- Figure 1 and Parts List
Ref.
No. Part No. Description Qty.
1 00002528 Hex Cap Screw 3/8-16 x 2.00 2
2 00012152
3 00022560 Hex Nut, 3/8-16 Flange Lock 11
4 01000372 Carriage Bolt, 3/8-16 x .75 Long 7
5 01000643 Carriage Bolt, 3/8-16 x 1 2
6 01001170 Rubber Bumper, .62 OD x .22 Thick 4
7 01001776 Clevis Pin, .500 Dia. x 2.50 Lg. 1
8 01002511
9 01003282
10 01003993 Linch Pin, 3/16 Dia. 2
11 01005160 Plug, Square Tube 2
12 01007779 Bracket Assembly, Frame, Front 1
13 01008225 Push Retainer, 3/8 4
14 01010119 Nut, 1/2-13, Flangelock 1
15 02002655 Spacer, .51 ID x .75 OD x 1.40 1
16 02003055 Lift Index Bracket 1
17 02003074 HitchPin, .120 Dia. x 3.0 1
18 02003501 Wear Plate, 1.25 x 5.00 1
19 02003505 Flat Head Cap Screw, 1/4-20 x .75 2
20 02003541 Frame Assembly 1
21 02003563 Carriage Bolt, 1/2-13 x 3.00 1
Lock Nut w/Nylon Insert
Nut, 3/8-16, Jam
Clevis Pin, .625 Dia x 4.375 Long
GD: 02003025-10/16/06
2
2
2
3
72" Fabricated Cutter Deck - Figure 2
GD: 02002933-10/26/06
4
72" Fabricated Cutter Deck - Parts List for Figure 2
Ref.
Part No. Description Qty.
No.
1 00011925 Hex Cap Screw, 3/8-16, 3.75 6
2 00012158
3 00012428 Lock Nut, Nylon Insert, 1/2-13 4
4 00014608 Lock Nut, Nylon Insert, #10-32 16
5 00017778
6 00022560 Flange Lock Hex Nut, 3/8-16 61
7 01000343
8 01000372 Carriage Bolt, 3/8-16 x .75 Lg. 44
9 01000385 Front Roller 4
10 01000398 Wheel Spacer 6
11 01000643 Carriage Bolt, 3/8-16 x 1 2
12 01001169 Grass Catcher Roller 2
13 01001745 Pin, 5/8 Dia. x 1.2 Lg. 4
14 01002010
15 01003253 Torsion Spring, 0.4ID x 2.16Lg 1
16 01004304 Hex Index Washer Screw, 3/8-16, .5 8
17 01004685 Belt Cover Support 2
18 01005364 Deck Roller Mount Bracket 3
19 01005260
20 01005437 Outer Belt Cover Support Assembly 2
21 01005869
22 01008514
23 01008526
24 01009102 Pin, .375 x 14.06 1
25 01009300 Chute Bracket 1
26 01009705 Chute Deflector 1
27 01009843
28 01010119 Nut, 1/2-13, Flangelock 1
29 02000109
30 02000110
31 02002534 72 Deck Assembly 1
32
02002800 J-Hook w/ Threaded Roller 1
33 02002831 Right Hand Deck Belt Cover 1
34 02002832 Left Hand Deck Belt Cover 1
35 02002919
36 02002918
37 712-0641 Hex Nut, M16-1.5 2
38 721-04041 Water Nozzle Adaptor 1
39 736-0760 Lock Washer, 17 x 23.8 x 1.95 2
40 737-04003B Deck Water Nozzle 2
Flat Washer, 3/8
Phillips Head Screw, #10-32 x 1/2
Complete Wheel, 5.00 Dia.
Carriage Screw, 3/8-16 x 1.25
Anti-Scalp Wheel Front Mount Bracket
T-Handle Latch Draw
Chute Bracket
Finger Guard
Discharge Baffle Weldment
Pillow Block, Steel
Pillow Block, Bronze
Right Hand Deck Weldment Bracket
Left Hand Deck W eldm ent Bracket
6
16
6
7
4
4
1
1
1
3
1
1
1
5
72" Fabricated Deck Spindle Assembly - Figure 3
GD: 02003628-10/30/06
6
72" Fabricated Deck Spindle Assembly
Ref.
Part No. Description Qty.
No.
1 00005763 Hex Nut, 7/16-14 1
2 00008495 Hex Cap Screw, 3/8-16 x 1-3/4 2
3 00011438 Hex Cap Screw, 3/8-16 x 1-1/2 12
4 00011861 Hex Cap Screw, 3/8-16 x 2-1/2 1
5 00011925
6 00012158
7 00022560 Flange Lock Hex Nut, 3/8-16 18
8 00060078 Grease Fitting, 1/4-28 x 3/16 2
9 00083192 Idler Washer 1
10 01000302 Shoulder Screw, 7/16-14 1
11 01000364 Hex Carriage Screw, 3/8-16, 1.75 1
12 01000380 Flange Hex Nut, 3/4-16 3
13 01000387
14 01000389 Lock Washer, 7/16 1
15 01000392 Flat Washer, .781 ID 2.00 OD, .105 1
16 01000393 Flat Washer, .469 ID, .875 OD, .105 1
17 01000643
18 01000723
19 01002564 Spacer, .76 ID x 2.0 OD x .477 1
20 01002751
21 01002771 Cotter Pin, .072 x 1.12 Long 2
22 01003123 Spacer .812 ID x .268 LG 2
23 01003245
24 01004081 Flat Pulley 1
25 01004101
26 01004304 Screw, TT, 3/8-16 x .50, 2
27 01005434
28 01005388
29 01007499 V-Pulley, 5.75 OD 3
30 01007786
01000308
31 01007937
32 01007938
33 01008018
34 01008081
35 01008618
36 01008252
37 01008270
38 01008542 Hex Cap Screw, 3/4-16, 7.50 2
39 02000568 Bahia Blade, 25.0, .756 ID 3
40 02000726 Extension Spring, 1.0 x OD x 5.00 1
41 02000920 Aluminum Spindle Assembly 3
42 02001574
43 02003489 Idler Arm Assembly includes: 1
01000308 Bearing Sleeve 2
44 756-3045 Idler Pulley, 5.06 Dia. 1
Hex Cap Screw, 3/8-16, 4.00
Flat W asher , 3/8
Torsion Idl er Spring
Carriage Bolt, 3/8-16 x 1
Flat Washer, .406 ID, 1.0 OD, .105
Spacer, .39 ID x .63 OD x 1.75
Spacer, .39 ID x .625 OD x 2.75
Idler Pulley, 4.06 OD
Aluminum Spindle Support Plate
Hex Cap Screw, 3/4-16, 9.00
Idler Arm Assembly, Deck
Bearing Sleeve
V -Belt, B Section x 124.0 LG
V -Belt, B Section x 99 .25 LG
Spacer, .760 ID x 2.00 OD x .330
V -P ulley, 6.360 OD x .750 Bore, Cast
Tension Idler U-Bracket
Handle Tension Weldment
Tension Idler Handle Grip
Spring Tension Rod
- Parts List for Figure 3
1
12
1
1
6
1
1
1
3
1
1
2
1
1
3
1
1
1
1
1
7
Hydro Hose and Pump Assembly - Figure 4
Pump & Motor Systems
3/4" Hose
16.0" LG.
3/4" Hose
12.0" LG.
Pilot &Drain Systems
Motor Mount Systems
3/4" Hose
11.0" LG.
3/4" Hose
12.0" LG.
3/4" Hose
12.0" LG.
3/4" Hose
16.0" LG.
GD: 02002830-10/05/06
8
Hydro Hose and Pump Assembly- Parts List for Figure 4
Ref.
Part No. Description Qty.
No.
1 00012157 W asher lock 3/8 zinc 2
2 00012428 W asher lock 3/8 zinc 8
3 00020628 Key, 3/16" x 7/8" 2
4 00022560
5 00030261 Cap, Hydro Oil Tank 1
6 00034167 Hex Cap Screw 3/8-16 x 5.00 2
7 01000369 Hex Cap Screw, 3/8 -16 x 1.25 2
8 01000372 Carriage Bolt, 3/8-16 x .75 LG. 5
9 01000642 Carriage Bolt, 3/8-16 x 5.50
10 01000643 Carriage Bolt, 3/8-16 x 1 5
11 01002010 Carriage Screw, 3/8-16 x 1.25 4
12 01001618
13 01004192 Oil Pan Drain Plug w/ Seal 1
14 01006948
15 01007309
16 01008449
17 02000296 Grommet Fitting, .54 ID x .78 OD 1
18 02000401 Spring Extension, .740 OD x 2.656 2
02000841
19 02000905
01009631
20 02000906
21 01009631
22 02001151
23 02001160
24 02001169
25 02001172
26 02001178
27 02001179
28 02001492
29 02001715
02002003
30 02002257
31 02002258
32 02002557
33 02002703
34 02002899
35 02002967
36 02002968
37 750-3119 Spacer .406 ID x 1.0 OD 2
38 -39 02001175 Tee Fitting, 1/2 2
40 02002392
NOTE: Lubricant, 02002058 Quarts, 2.00
Flange Lock Hex Nut, 3/8-16
Strut Frame
Hydro Wheel Motor Backup Plate
Hex Nut, 3/8-24
Socket Head Capscrew, 1/2-13; 6-1/2
Socket Low Head Cap Screw, 1/4-20 x 0.75
Hydro Pump, BDP-12, RH
Kit, Fan
Hydro Pump, BDP-12, LH
Kit, Fan
Fitting Elbow Spur, 5/8 x 1/2
Fitting Elbow, 9/ 16 x 1/2
Fan Pump Shroud
Hydro Pump Pulley
Short Pressure Hose Assembly
Long Pressure Hose Assembly
Hydro Motor Frame Assembly
Adaptor Fitting, 8 x 10
Adaptor, 8 x 8
Hydraulic In-Tank Filter includes:
Replacement Filter
Fitting, 3/4 ORB x 1/2 Tube
Hydraulic Tank Assembly
Rear Cable Mounting Bracket
Hydro Motor, Left Hand Assembly w/ Brake & Drum
Hydro Motor, Right Hand Assembly w/ Brake & Drum
Fuel Hose, .50 ID x .75 OD (in inches)
Hose Clamp, 1/2
22
2
2
2
8
2
1
1
1
1
1
4
2
2
2
2
1
4
4
1
1
1
1
2
1
1
79
12
9
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