Cub Cadet 53AI8CTW750 Setup guide

Hydrostatic Zero-Turn
Commercial Riding Mower
Professional Turf Equipment
ILLUSTRATED PARTS LIST
54" Fabricated Deck

2
TABLE OF CONTENTS
Frame Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
54" Fabricated Cutter Deck. . . . . . . . . . . . . . . . . . . . . 4 and 5
54" 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
54" Wheel Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Seat/Floor Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . 19
23HP Kawasaki Engine Assembly . . . . . . . . . . . . . 20 and 21
Lift Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 and 23
23HP Electrical Assembly Kawasaki . . . . . . . . . . . . . . . . . 24
MODELS LISTED IN THIS MANUAL
23HP Tank,
53AI8CTW750

3
Frame Assembly
GD: 02002665-03/29/07
- Figure 1 and Parts List
Ref.
No. Part No. Description Qty.
101005810 Hex Cap Screw 3/8-16 x 2.00 2
200012152 Lock Nut w/Nylon Insert 2
300022560 Hex Nut, 3/8-16 Flange Lock 10
401000372 Carriage Bolt, 3/8-16 x .75 Long 7
501000643 Carriage Bolt, 3/8-16 x 1 2
601001170 Rubber Bumper, .62 OD x .22 Thick 6
701001776 Clevis Pin, .500 Dia. x 2.50 Lg. 1
801002511 Nut, 3/8-16, Jam 1
901003282 Clevis Pin, .625 Dia x 4.375 Long 2
10 01003993 Linch Pin, 3/16 Dia. 2
11 01005160 Plug, Square Tube 2
12 01008225 Push Retainer, 3/8 4
13 01010119 Nut, 1/2-13, Flangelock 1
14 02002599 Frame Assembly 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 02003749 Wear Plate, 1.25 x 5.00 1
19 02003505 Flat Head Cap Screw, 1/4-20 x .75 2
20 02003524 Bracket Assembly, Frame, Front 1
21 02003563 Carriage Bolt, 1/2-13 x 3.00 1

4
54" Fabricated Deck Assembly - Figure 2
GD: 02002927-03/15/07

5
54" Fabricated Deck Assembly - Parts List for Figure 2
Ref.
No. Part No. Description Qty.
100011925 Hex Cap Screw, 3/8-16, 3.75 4
200012158 Flat Washer, 3/8 4
300012428 Lock Nut, Nylon Insert, 1/2-13 5
400013406 Hex Cap Screw, 5/16-18 x 3/4 1
500014608 Lock Nut, Nylon Insert, 10-32 16
600017778 Phillips Head Screw, 10-32 16
700022560 Hex Nut, 3/8-16 Flange Lock 50
800083192 Idler Washer 1
901000343 Complete Wheel, 5.00 Dia. 4
10 01000372 Carriage Bolt, 3/8-16 x .75 Lg. 37
11 01000385 Front Roller 5
12 01000398 Wheel Spacer 4
13 01000635 Hexflange Lock Nut, 5/16-18 1
14 01000643 Carriage Bolt, 3/8-16 x 1 7
15 01001745 Pin, 5/8 Dia. x 1.2 Lg. 4
16 01002010 Carriage Screw, 3/8-16 x 1.25 4
17 01003253 Spring Torsion, 0.4 ID x 2.16 LG 1
18 01003254 Defllector Chute Rod 1
19 01004109 Tension Rod Stop Bracket 1
20 01004304 Hex Index Washer Screw, 3/8-16, .5 8
21 01004685 Cover Support 2
22 01005364 Roller Mount Bracket 3
23 01005260 Anti-Scalp Wheel, Front Mount Bracket 2
24 01005256 Left Hand Front Roller Mount Bracket 1
25 01005258 Right Hand Front Roller Mount Bracket 1
26 01005437 Outer Belt Cover Support Assembly 2
27 01005869 T-Handle Draw Latch 4
28 01006693 Deflector Chute 1
29 01008226 Deflector Chute Bracket 1
30 01008633 Left Hand Mount, Deck Bracket Assembly 1
31 01008635 Deck Bracket Assembly 1
32 01008644 Finger Guard 1
33 01009300 Chute Bracket 1
34 02000109 Pillow Block 2
35 01006961 Hex Cap Screw, 1/2-20 x 7.50 1
36 02002299 Lock Nut, Nylon Insert, 1/2-20 1
37 02002528 54 Deck Assembly 1
38 02002799 J-Hook w/ Threaded Roller 1
39 02002836 Right Hand Belt Deck Cover 1
40 02002837 Left Hand Belt Deck Cover 1
41 712-0641 Hex Nut, M16-1.5 2
42 721-04041 Water Nozzle Adaptor 1
43 736-0760 Lock Washer, 17 x 23.8 x 1.95 2
44 737-04003B Deck Water Nozzle 2

6
54" Fabricated Deck Spindle Assembly - Figure 3
GD: 02003630-11/01/06

7
54" Fabricated Deck Spindle Assembly - Parts List for Figure 3
Ref.
No. Part No. Description Qty.
100005763 Hex Nut, 7/16-14 1
200008495 Hex Cap Screw, 3/8-16 x 1-1/4 2
300011438 Hex Cap Screw, 3/8-16 x 1-1/2 12
400011925 Hex Cap Screw, 3/8-16, 4.00 1
500012158 Flat Washer, 3/8 12
6756-3045 Idler Pulley, 5.06 Dia. 1
700022560 Hex Nut, Flange Lock, 3/8-16 18
800060078 Grease Fitting, 1/4-28 x 3/16 2
900083192 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 Torsion Spring Idler 1
14 01000389 Lock Washer, 7/16 1
15 01000392 Flat Washer, .781 ID, 2.00 OD, .105 3
16 01000393 Flat Washer, .469 ID, .875 OD, .105 1
17 01000643 Carriage Bolt, 3/8-16 x 1 1
18 01000723 Flat Washer, .406 ID, 1.0 OD, .105 6
19 01003123 Spacer, .812 ID x .218 LG 4
20 01003245 Spacer, .39 ID x .625 OD x 2.75 1
21 01005737 Idler Arm Assembly, Deck Spindle includes: 1
01000308 Bearing 2
22 01003532 Spindle Assembly, Aluminum Fab Deck 3
23 01004081 Flat Pulley 1
24 01004101 Idler Pulley, 4.06 OD w/Deep Plan Flanges 1
25 01004118 Shoulder Screw, .50 x .27 LG, 3/8-16 1
26 01004415 Spacer, .760 ID x 2.000 OD x 1.1 4
27 01005434 Plate Support, Cast Aluminum Spindle 3
28 01005201 V Pulley, 5.25 OD 1
29 01005213 Hex Cap Screw, 3/4-16, 7.00 2
30 01005337 Hi-Lift Blade, 19.0, 0.756 3
31 01005375 V Belt, A Section x 114.3 1
32 01005378 V Belt, B Section x 87.3 1
33 01005388 Hex Cap Screw, 3/4-16, 9.00 1
34 01005616 V Pulley, 5.00 OD 3
35 01005690 Rod Fab Deck Spring Tension 1
36 02003489 Idler Arm Assembly includes: 1
01000308 Bearing 2
37 02003712 Spring Extension, .94 OD x 7.57 1

8
Hydro Hose and Pump Assembly
Pump & Motor Systems
3/4" Hose
11.0" LG.
3/4" Hose
16.0" LG.
3/4" Hose
16.0" LG.
3/4" Hose
12.0" LG.
3/4" Hose
12.0" LG.
3/4" Hose
12.0" LG.
Pilot &Drain Systems
Motor Mount Systems
GD: 02002828-03/13/07
- Figure 4

9
Hydro Hose and Pump Assembly- Parts List for Figure 4
Ref.
No. Part No. Description Qty.
102002392 Hose Clamp, 1/2 12
200012428 Washer lock 3/8 zinc 8
300020628 Key, 3/16" x 7/8" 2
400022560 Flange Lock Hex Nut, 3/8-16 22
500030261 Cap, Hydro Oil Tank 1
601000364 Hex Carriage Screw, 3/8-16, 1.75 2
701000369 Hex Cap Screw, 3/8 -16 x 1.25 4
801000372 Carriage Bolt, 3/8-16 x .75 LG. 6
901000643 Carriage Bolt, 3/8-16 x 1 4
10 01002010 Carriage Screw, 3/8-16 x 1.25 4
11 01001618 Strut Frame 2
12 01004192 Oil Pan Drain Plug w/ Seal 1
13 01006948 Hydro Wheel Motor Backup Plate 2
14 01007309 Hex Nut, 3/8-24 2
15 01007791 Socket Head Capscrew, 1/2-13; 3-1/2 8
16 01009775 Hydro Motor Spacer 2
17 02000296 Grommet Fitting, .54 ID x .78 OD 1
18 02000401 Spring Extension, .740 OD x 2.656 2
19 02000841 Socket Low Head Cap Screw, 1/4-20 x 0.75 2
20 02000905 Hydro Pump, BDP-12, RH 1
01009631 Kit, Fan 1
21 02000906 Hydro Pump, BDP-12, LH 1
01009631 Kit, Fan 1
22 02001151 Fitting Elbow Spur, 5/8 x 1/2 1
23 02001160 Fitting Elbow, 9/16 x 1/2 4
24 02001169 Fan Pump Shroud 2
25 02001172 Hydro Pump Pulley 2
26 02001176 Short Pressure Hose Assembly 2
27 02001177 Long Pressure Hose Assembly 2
28 02001489 Hydro Motor Frame Assembly 1
29 02001715 Adaptor Fitting, 8 x 10 4
30 02002003 Adaptor, 8 x 8 4
31 02002257 Hydraulic In-Tank Filter includes: 1
02002258 Replacement Filter 1
32 02002557 Fitting, 3/4 ORB x 1/2 Tube 1
33 02002703 Hydraulic Tank Assembly 1
34 02003826 Rear Cable Mounting Bracket 2
35 02002967 Hydro Motor, Left Hand Assembly w/ Brake & Drum 1
36 02002968 Hydro Motor, Right Hand Assembly w/ Brake & Drum 1
37 00083192 Idler Washer 2
38 -- Fuel Hose, .50 ID x .75 OD (in inches) 79
39 02001175 Tee Fitting, 1/2 2
40 00006168 Flat Washer, 3/8 2
NOTE: Lubricant, 02002058 Quarts, 2.00

10
Brake Assembly
GD: 02002926-03/22/07
- Figure 5

11
Brake Assembly - Parts List for Figure 5
Ref.
No. Part No. Description Qty.
100012577 Washer, 1/2 Zinc 1
201000643 Carriage Bolt, 3/8-16, 1.00 1
300011450 Shoulder Bolt, 1/2 x 1/2 1
400014608 Lock Nut, Nylon Insert, 10-32 3
500022560 Flange Lock Hex Nut, 3/8-16 6
600030906 Phillips Head Machine Screw, 10-32 x 5/8 3
701000372 Carriage Bolt, 3/8-16 x .75 2
801000443 Screw Button Head, 1/4-20 x .5 18
901000628 Screw, TT, 1/4-20, 0.5, Hex Index Washer 10
10 01000930 Washer, .508 ID x 1.0 OD x .020 4
11 02003841 Centering Bracket 1
12 01008198 Left Hand Brake Cable 1
13 01008225 Push Retainer, 3/8 2
14 01008531 Screw, #10-32 x 0.500 2
15 01008539 U-Nut, 1/4-20 18
16 02000362 Bag, Debris Storage 1
17 02002797 Lower Panel, LH 1
18 02002796 Lower Panel, RH 1
19 02002823 Control Panel Cover, LH 1
20 02002889 Control Panel Cover, RH 1
21 02002864 Brake Cable Mounting Bracket 2
22 02002874 Cup Holder 1
23 02002971 Control Panel, LH 1
24 02002972 Control Panel, RH 1
25 02003010 Parking Brake Grip 1
26 02003603 Shoulder Bolt, 1/2 x 1.00, 3/8-16 2
27 02003725 Washer, 3/16 2
28 02003770 Brake Cable, LH 1
29 02003774 Brake Cable, RH 1
30 02003776 Brake Cable Bracket 1
31 02003782 Brake Lever 1
32 00013131 Screw, Hex, Cap, 1/4-20 x .75 1
33 01002766 Lock Nut, 1/4-20 1

12
Fuel Tank Assembly
GD: 02001910-01/11/07
- Figure 6 and Parts List
Ref.
No. Part No. Description Qty.
102003809 Fuel Cap, 3.5, Tethered 2
200012470 Cable Tie 2
301000723 Flat Washer, .406 ID, 1.0 OD, .105 8
401000368 Hex, Cap Screw, 3/8-16, .88 8
500012157 Lock Washer, 3/8 8
602003842 Fuel Tank 2
701000600 Flat Washer, 1.4 x .630 x .0515 1
801007425 Fuel Fitting 2
902001908 Fuel Hose Assembly includes: 1
-- Hose, 1/4" Fuel Line (in inches) 88
00012235 Clamp, Union 5
01003473 Tee Fitting, Fuel 1
10 02002253 Grommet, Fuel Tank 2
11 01000215 Hose Clamp, SAE #4: 1/4-5/8, SS 1

13
Rear Bumper
GD: 02003564-10/25/06
- Figure 7 and Parts List
Ref.
No. Part No. Description Qty.
100012428 Hex Nut, 1/2-13, Insert Lock 2
200022560 Nut, Hex 3/8-16 Flange Lock 2
300030046 HHCS, 1/2-13, 3.00 2
401009992 Bar, Weight 2
502002536 Hitch Bracket 1
602003570 Carriage Bolt, 3/8-16 x 3.00 2
702003634 Rear Bumper 1

14
Front Caster Assembly
GD: 02002820-10/04/06
- Figure 8

15
Front Caster Assembly - Parts List for Figure 8
Ref.
No. Part No. Description Qty.
100012577 Washer, 1/2 x 1 Shim 2
200023287 Nut, 1/2-20, Center Lock 2
300060078 Grease Fitting, 1/4-28 x 3/16 3
401000678 Nut, Jam, 1.0-14, Insert Lock 1
501002620 Cup Bearing 4
601002621 Bearing Cone 4
701002622 Seal 2
801002624 Ring Seal 4
901002626 Slotted Nut, 3/4-16 2
10 01002627 Cotter Pin, 5/32, 1.25 2
11 01003123 Spacer, .812 ID x .218LG 4
12 01006294 Bell Washer, 1.25 ID x 2.5 x .157 2
13 01006309 Hex Cap Screw, 1-14 x 5.0 1
14 01006347 Grease Cap, 1.986 OD 2
15 01006912 Wheel Spacer 2
16 01006961 HHCS, 1/2-20, 7.50 2
17 01007407 Yoke, Caster Wheel 2
18 01009997 Retainer Extension, Self Locking 1
19 02000439 Front Axle Assembly 1
20 02000588 Flat Washer, 1.00 ID 2
21 02000589 Spacer, 1.005 ID x 1.25 OD x 3.6 1
22 02002821 Wheel, 13 x 6.50 x 6.0, Beige, includes 2
02002108 Tire 1
02002106 Roller Bearings 2
02002107 Retainer Bushings 2

16
Control Assembly
GD: 02002550-02/12/07
- Figure 9

17
Control Assembly - Parts List for Figure 9
Ref.
No. Part No. Description Qty.
Ref.
No. Part No. Description Qty.
100002528 Hex Cap Screw, 3/8-16 x 2.00 427 01007312 Spacer, .625 OD x .385 ID x 1/2 2
200012186 Hex Nut, 1/4-20 128 01007734 Tu r n b u ck l e 2
300013131 Hex Cap Screw, 1/4-20, .75 1 29 732-0470A Extension Spring, .53 OD x 4.75 1
400013198 Hex Cap Screw, 5/16-18 x 2.00 230 01008367 B/Joint, 3/8-24, Left Hand Female 2
500013416 HHCS, 1/4-20 x 1.00 131 01009322 Shoulder Bolt, 1/4 x 1/4 2
600021958 Grease Fitting, 1/4-28, 45 degree 232 01009377 Nut w/ Star Washer, 10-24 2
700022560 Hex Nut, 3/8-16, Lock Flange 12 33 01009560 Control Rod, 3/8 x 17.312 2
800061053 Washer, 3/8, SS 234 02000069 Screw, Shoulder Control Rod 3
902003666 Hex Cap Screw, 3/8-16 x 3.50 35 02002931 Lapbar Control Assembly, LH 1
10 01000372 Carriage Bolt, 3/8-16 x .75 801004265 Bearing 2
11 01000450 Hex Jam Nut, 3/8-24 436 02002542 Brake/Control Rod 2
12 01000451 B/Joint, 3/8-24, Right Hand Female 237 02002543 Lapbar Control Arm 1
13 01000600 Flat Washer, 1.4 x .630 x .0515 238 02002545 Lapbar Pivot Bracket 2
14 01000628 Screw, TT, 1/4-20, 0.5, Hex Index Washer 339 02002555 Lapbar Control Shaft Assembly 1
15 01000635 Nut, Lock, HexFlange, 5/16-18 940 02002657 Lapbar/Brake Control Mounting Bracket 1
16 01000960 Belle Washer, .325 x .930 x .045 241 02002932 Lapbar Control Assembly, RH 1
17 01001170 Rubber Bumper, .62 OD x .22 Thick 201004265 Bearing 2
18 010 02511 Nut, 3/8-16, Jam 442 02003024 Lapbar Assembly includes: 2
19 01002766 Hex Flange Lock Nut, 1/4-20 202002549 Control Handle Pivot Tube 2
20 01002986 Nut, 3/8-24, Jam, LH Third 202002662 Grip, 1.0 2
21 01003561 Nut, Hex, Center Lock, M8 443 02003419 Bushing, .310 x .172 x .688 x .06 4
22 01003947 U-Nut, 3/8-16, .75 244 02003653 Cylinder Return to Neutral 2
23 01004003 Flat Washer, 5/8 Nylon 445 02003664 Spacer, .405 ID x 1.0 OD x .72 1
24 01004129 Spacer, .385 ID x .75 OD x .875 246 02003885 Side Panel, Control, Left 1
25 01005851 External Washer, 3/8 247 02003880 Side Panel, Control, Right 1
26 01006350 Shaft Collar 248 710-0262 Carriage Bolt, 5/16-18 x 1.50 4

18
54" Wheel Assembly
2
1
GD: 02002669-10/04/06
- Figure 10 and Parts List
Ref.
No. Part No. Description Qty.
100012187 Lug Nut, 1/2-20 8
202002668 Wheel Assembly, 24 x 12.00-12, Beige
Includes:
2
00073975 Tire, 24 x 12.00-12
Rim, 12 Dia x 8.50 width
OPTIONAL TIRES
01002182 Wheel Assembly, 24 x 12.00-12, Turf Saver
01004473 Tire, 24 x 12.00-12, Turf Saver

19
Seat/Floor Panel Assembly
GD: 02002559-03/22/07
- Figure 11 and Parts List
Ref.
No. Part No. Description Qty.
Ref.
No. Part No. Description Qty.
100002528 Hex Cap Screw 3/8-16 x 2.00 117 01002766 Lock Nut, 1/4-20 2
200006131 Hex Nut, 3/8-16 218 01008140 Deck Lift Spring, Left Hand 1
300012158 Washer AR 19 01009459 Shoulder Bolt, .375 x 1.50 2
4712-04063 Nylock Nut, 5/16-18 220 02002091 Shoulder Bolt, 1/2 x 3/4, 3/8-16 1
500012168 Lock Washer, 5/16 421 02002335 Floor Panel Assembly 1
600012178 Hex Cap Screw, 5/16-18 x 1/2 422 02002714 Foldable Rops Assembly 1
700012428 Nut, 1/2-13, Nylon Insert 423 02002942 Seat w/ Seat Belt & Suspension 1
800013131 Screw, Hex, Cap, 1/4-20 x .75 224 02002963 Rubber Stop with Washer 4
900021956 Hair Pin, 3/8-1/2 225 02002964 Standard Cap Screw, #10-24 x .75 4
10 00022560 Flange Lock, Hex Nut, 3/8-16 426 02002344 Seat Plate Assembly 1
11 01000226 Hex Cap Screw, 1/2-13 x 3.50 427 02003748 Seat Latch Bracket 1
12 01000372 Carriage Bolt, 3/8-16 x .75 Long 228 02003732 Latch Lever Bracket 1
13 01000523 Nut, #10-24, Nylon Lock 429 02003739 Latch Bracket 1
14 01000628 Screw, TT, 1/4-20, 0.5, Hex Index Washer 230 02003745 Adjustable Stud 1
15 01000873 Washer, .536 ID x .930 OD x .05 831 01000723 Flat Washer, .406 ID, 1.0 OD, .105 2
16 01001170 Rubber Bumper, .62 OD x .22 Thick 232 02004062 Cable Support 1

20
23HP Kawasaki Engine Assembly - Figure 12
GD: 02003523-11/08/06
Description Part Number
Air Filter KM-11013-7020
Air Filter (Inner) KM-11013-7019
Fuel Filter KM-49019-7001
Oil Filter KM-49065-2078
Spark Plug (23HP) KM-BPR4ES