Cub Cadet 53AI8CT8050 User Manual
Hydrostatic Zero-Turn
Commercial Riding Mower
Professional Turf Equipment
72" Fabricated Deck
ILLUSTRATED PARTS LIST
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 Kawasaki . . . . . . . . . . . . . . . . . . . . 22 and 23
Lift Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 and 25
FXT00V 37HP Engine Breakdown . . . . . . . . . . . . . . . . . . . . 26-37
Right and Left Hand Wheel Motor Breakdown . . . . . . . . 38 and 39
Right Hand BDP-12 Hydraulic Pump Breakdown. . . . . . 40 and 41
Left Hand BDP-12 Hdraulic Pump Breakdown. . . . . . . . 42 and 43
Decal Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
MODELS LISTED IN THIS MANUAL
37HP Tank
53AI8CT8050
2
Frame Assembly
- Figure 1 and Parts List
Ref.
Part No. Description Qty.
No.
1 00012152
2 00022560 Hex Nut, 3/8-16 Flange Lock 10
3 01000372 Carriage Bolt, 3/8-16 x .75 Long 7
4 01000643 Carriage Bolt, 3/8-16 x 1 2
5 01001170 Rubber Bumper, .62 OD x .22 Thick 6
6 01001776 Clevis Pin, .500 Dia. x 2.50 Lg. 1
7 01002511
8 01003282
9 01003993 Linch Pin, 3/16 Dia. 2
10 02005101 Lift Index Bracket 1
11 01005810 Hex Cap Screw 3/8-16 x 2.00 1
12 01007776 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 02003074 HitchPin, .120 Dia. x 3.0 1
17 02003505 Flat Head Cap Screw, 1/4-20 x .75 2
18 02003536 Frame Assembly 1
19 02003563 Carriage Bolt, 1/2-13 x 3.00 1
20 02003749 Wear Plate, 1.25 x 5.00 1
Lock Nut w/Nylon Insert
Nut, 3/8-16, Jam
Clevis Pin, .625 Dia x 4.375 Long
GD: 02005313-12/20/07
2
1
2
3
72" Fabricated Cutter Deck - Figure 2
GD: 02004857-01/24/08
4
72" Fabricated Cutter Deck - Parts List for Figure 2
Ref.
Part No. Description Qty.
No.
1 00011925 Hex Cap Screw, 3/8-16, 4.00 2
2 00012158 Flat Washer, 3/8 2
3 00012428 Lock Nut, Nylon Insert, 1/2-13 5
4 00014608 Lock Nut, Nylon Insert, #10-32 16
5 00017778
6 00022560
7 01000343 Complete Wheel, 5.00 Dia. 6
8 01000372 Carriage Bolt, 3/8-16 x .75 Lg. 35
9 01000385 Front Roller 4
10 01000398 Wheel Spacer 4
11 01000643 Carriage Bolt, 3/8-16 x 1 6
12 01001169 Grass Catcher Roller 2
13 01001745
14 01002010 Carriage Screw, 3/8-16 x 1.25 7
15 01003253 Torsion Spring, 0.4ID x 2.16Lg 1
16 01004304 Hex Index Washer Screw, 3/8-16, .5 8
17 01004684
18 01004707
19 01005438 Outer Belt Cover Support Assembly 2
20 01005869
21 01008526 Finger Guard 1
22 01009102 Pin, .375 x 14.06 1
23 01009705
24 01009842 Discharge Baffle Weldment 1
25 01010119
26 02000109
27 02000110
28 02002800
29 02004410
30 02004403
31 02002911
32
02002912
33 02004833 Shoulder Bolt, .625 x 3.00 x 3/8-16 2
34 02005696 Baffle, 72" Adjustment 1
35 02004868
36 02004869
37 02004872 72" Deck Assembly 1
38 02004874
39 02005195 Chute Baffle 1
40 01008049
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_04003C Deck Water Nozzle 2
Phillips Head Screw, #10-32 x 1/2
Flange Lock Hex Nut, 3/8-16
Pin, 5/8 Dia. x 1.2 Lg.
Belt Cover Support
Deck Roller Mount Bracket
T-Handle Latch Draw
Chute Deflector
Nut, 1/2-13, Flangelock
Pillow Block, Steel
Pillow Block, Steel
J-Hook w/ Threaded Roller
Right Hand Deck Belt Cover
Left Hand Deck Belt Cover
Right Hand Deck Lift Bracket
Left Hand Deck Lift Bracket
Right Hand Front Adjustment Skirt
Left Hand Front Adjustment Skirt
Chute Deflector Bracket
Carriage Bolt, 3/8-16 x 4.00
16
54
4
2
3
4
1
2
3
1
1
1
1
1
1
1
1
1
2
5
72" Fabricated Deck Spindle Assembly - Figure 3
GD: 02004950-12/20/07
6
72" Fabricated Deck Spindle Assembly
Ref.
Part No. Description Qty.
No.
1 00005763 Hex Nut, 7/16-14 1
2 00008495
3 00011438 Hex Cap Screw, 3/8-16 x 1-1/2 12
4 00011861 Hex Cap Screw, #/8-16 x 2-1/2 1
5 00011925 Hex Cap Screw, 3/8-16, 4.00 1
6 00012158
7 00022560 Flange Lock Hex Nut, 3/8-16 20
8 00060078
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 Carriage Bolt, 3/8-16 x 1 3
18 01000723
19 01002751
20 01002771
21 01003123
22 01003245
23 01004478
24 01007499 V-Pulley, 5.75 OD 3
25 01007786 Idler Arm Assembly includes: 1
01000308 Bearing Sleeve 2
26 01007937 V-Belt, B Section x 124.0 Lg 1
27 01008018
28 01008222
29 01008247 Handle Tension Weldment 1
30 01008270 Tension Idler Handle Grip 1
31 01008542 Hex Cap Screw, 3/4-16, 7.50 2
32 01008543
33 01010014
34 02000568 Bahia Blade, 25.0, .756 ID 3
35 02000920 Aluminum Spindle Assembly 3
36 02001574 Spring Tension Rod 1
37 02003489 Idler Arm Assembly includes: 1
01000308
38 02004063 Adaptor Plate 1
39 02004069 Extension Spring, .94 OD x 7.72 Lg 1
40 02004377 V-Belt, B Section x 107.0 1
41 02004379 V-Pulley, 7.450 OD x .750 Bore, Cast 1
42 02004447 Idler Pulley, 4.06 OD 1
43 02005077 Idler Pulley, 4.06 Dia. 1
44 02005079 Idler Pulley, 5.06 Dia. 1
45 00002528 Hex Cap Screw, 3/8-16 x 2.00 1
Hex Cap Screw, 3/8-16 x 1-3/4
Flat Washer, 3/8
Grease Fitting, 1/4-28 x 3/16
Torsion Idler Spring
Flat Washer, .406 ID, 1.0 OD, .105
Spacer, .39 ID x .63 OD x 1.75
Cotter Pin, .072 x 1.12 Long
Spacer .812 ID x .268 LG
Spacer, .39 ID x .625 OD x 2.75
Aluminum Spindle Support Plate
Spacer, .760 ID x 2.00 OD x .330
Tension Idler U-Bracket
Hex Cap Screw, 3/4-16, 9.50
Spacer, .76 ID x 2.0 OD x .790
Bearing Sleeve
- Parts List for Figure 3
1
12
2
1
6
1
2
2
1
3
3
1
1
1
2
7
Hydro Hose and Pump Assembly
Pump & Motor Systems
- Figure 4
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: 02004445-01/10/08
8
Hydro Hose and Pump Assembly- Parts List for Figure 4
Ref.
Part No. Description Qty.
No.
1 02002392
2 00012428 Washer lock 3/8 zinc 8
3 00020628 Key, 3/16" x 7/8" 2
4 00022560
5 00030261 Cap, Hydro Oil Tank 1
6 01002539 Hex Cap Screw 3/8-16 x 4.50 2
7 01000369 Hex Cap Screw, 3/8 -16 x 1.25 2
8 01000372 Carriage Bolt, 3/8-16 x .75 LG. 6
9 01009906 Carriage Bolt, 3/8-16 x 5.00 2
10 01000643 Carriage Bolt, 3/8-16 x 1 4
11 01002010 Carriage Screw, 3/8-16 x 1.25 4
12 01002593
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
19 02000841
20 02000905
01009631
21 02000906
01009631
22 02001151
23 02001160
24 02001169
25 02001172
26 02001178
27 02001179
28 02004648
29 02001715
30 02002003
31 02002257
02002258
32 02002557
33 02002701
34 02002899
35 02004442
36 02004441
37 00083192 Idler Washer 2
38 -39 02001175 Tee Fitting, 1/2 2
40 00006168
NOTE: Lubricant, 02002058 Quarts, 2.00
Hose Clamp, 1/2
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)
Flat Washer, 3/8
12
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
2
9
Brake Assembly
- Figure 5
10
GD: 02002926-10/31/07
Brake Assembly
Ref.
No.
1 00012577 Washer, 1/2 Zinc 1
2 01000643 Carriage Bolt, 3/8-16, 1.00 1
3 00011450 Shoulder Bolt, 1/2 x 1/2 1
4 00014608 Lock Nut, Nylon Insert, 10-32 3
5 00022560 Flange Lock Hex Nut, 3/8-16 6
6 00030906
7 01000372 Carriage Bolt, 3/8-16 x .75 2
8 01000443
9 01000628
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 02002785 Lower Panel, LH 1
18 02002786 Lower Panel, RH 1
19 02002806 Control Panel Cover, LH 1
20 02002852 Control Panel Cover, RH 1
21 02002864 Brake Cable Mounting Bracket 2
22 02002874 Cup Holder 1
23 02002969 Control Panel, LH 1
24 02002970 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 02005151 Brake Lever 1
32 00013131
33 01002766 Lock Nut, 1/4-20 1
- Parts List for Figure 5
Part No. Description Qty.
Phillips Head Machine Screw, 10-32 x 5/8
Screw Button Head, 1/4-20 x .5
Screw, TT, 1/4-20, 0.5, Hex Index Washer
Screw, Hex, Cap, 1/4-20 x .75
3
18
10
1
11
Fuel Tank Assembly
- Figure 6 and Parts List
Ref.
Part No. Description Qty.
No.
1 00012470 Cable Tie 2
2 01000215 Hose Clamp, SAE #4: 1/4-5/8, SS 1
3 01000600 Flat Washer, 1.4 x .630 x .0515 1
4 01007425 Fuel Fitting 2
5 02001908 Fuel Hose Assembly includes: 1
-- Hose, 1/4" Fuel Line (in inches) 88
00012235 Clamp, Union 5
01003473 Tee Fitting, Fuel 1
6 02002253
7 02003842
8 02005013 Hex Cap Screw, 3/8-16 x .500 8
9 751-3124D
Grommet, Fuel Tank
Fuel Tank
Fuel Cap, 3.5
GD: 02001910-12/11/07
2
2
2
12
Rear Bumper
- Figure 7 and Parts List
Ref.
Part No. Description Qty.
No.
1 00011459 Flat Washer, 1/2 2
2 00012428 Hex Nut, 1/2-13, Insert Lock 2
3 00022560 Nut, Hex 3/8-16 Flange Lock 2
4 00030046 HHCS, 1/2-13, 3.00 2
5 01000643 Carriage Bolt, 3/8-16 x 1.00 2
6 02004118
7 02004120 Hitch Bracket 1
Bumper Assembly
13
GD: 02005021-11/19/07
1
Front Caster Assembly
- Figure 8
14
GD: 02005312-10/11/07
Front Caster Assembly -
Ref.
Part No. Description Qty.
No.
1 00012577 Washer, 1/2 x 1 Shim 2
2 00023287 Nut, 1/2-20, Center Lock 2
3 00060078
4 01000678
5 01002620 Cup Bearing 4
6 01002621 Bearing Cone 4
7 01002622 Seal 2
8 01002624 Ring Seal 4
9 01002626 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
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 01007342 Yoke, Caster Wheel 2
18 01009997 Retainer Extension, Self Locking 1
19 02000588 Flat Washer, 1.00 ID x 2.00 OD x .075 2
20 02000589
21 02002821 Wheel, 13 x 6.50 x 6.0, Beige, includes 2
02002108 Tire 1
02002106 Roller Bearings (per tire) 2
02002107 Retainer Bushings (per tire) 2
22 02005308 Front Axle Assembly 1
Parts List for Figure 8
Grease Fitting
Nut, Jam, 1.0-14, Insert Lock
Bell Washer, 1.25 ID x 2.5 OD x .180
Spacer, 1.005 ID x 1.25 OD x 3.6
3
1
2
1
15
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