Cub Cadet 53AI8CT8050 Setup guide

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

2
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

3
Frame Assembly
GD: 02005313-12/20/07
- Figure 1 and Parts List
Ref.
No. Part No. Description Qty.
100012152 Lock Nut w/Nylon Insert 2
200022560 Hex Nut, 3/8-16 Flange Lock 10
301000372 Carriage Bolt, 3/8-16 x .75 Long 7
401000643 Carriage Bolt, 3/8-16 x 1 2
501001170 Rubber Bumper, .62 OD x .22 Thick 6
601001776 Clevis Pin, .500 Dia. x 2.50 Lg. 1
701002511 Nut, 3/8-16, Jam 1
801003282 Clevis Pin, .625 Dia x 4.375 Long 2
901003993 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

4
72" Fabricated Cutter Deck - Figure 2
GD: 02004857-01/24/08

5
72" Fabricated Cutter Deck - Parts List for Figure 2
Ref.
No. Part No. Description Qty.
100011925 Hex Cap Screw, 3/8-16, 4.00 2
200012158 Flat Washer, 3/8 2
300012428 Lock Nut, Nylon Insert, 1/2-13 5
400014608 Lock Nut, Nylon Insert, #10-32 16
500017778 Phillips Head Screw, #10-32 x 1/2 16
600022560 Flange Lock Hex Nut, 3/8-16 54
701000343 Complete Wheel, 5.00 Dia. 6
801000372 Carriage Bolt, 3/8-16 x .75 Lg. 35
901000385 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 Pin, 5/8 Dia. x 1.2 Lg. 4
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 Belt Cover Support 2
18 01004707 Deck Roller Mount Bracket 3
19 01005438 Outer Belt Cover Support Assembly 2
20 01005869 T-Handle Latch Draw 4
21 01008526 Finger Guard 1
22 01009102 Pin, .375 x 14.06 1
23 01009705 Chute Deflector 1
24 01009842 Discharge Baffle Weldment 1
25 01010119 Nut, 1/2-13, Flangelock 2
26 02000109 Pillow Block, Steel 3
27 02000110 Pillow Block, Steel 1
28 02002800 J-Hook w/ Threaded Roller 1
29 02004410 Right Hand Deck Belt Cover 1
30 02004403 Left Hand Deck Belt Cover 1
31 02002911 Right Hand Deck Lift Bracket 1
32 02002912 Left Hand Deck Lift Bracket 1
33 02004833 Shoulder Bolt, .625 x 3.00 x 3/8-16 2
34 02005696 Baffle, 72" Adjustment 1
35 02004868 Right Hand Front Adjustment Skirt 1
36 02004869 Left Hand Front Adjustment Skirt 1
37 02004872 72" Deck Assembly 1
38 02004874 Chute Deflector Bracket 1
39 02005195 Chute Baffle 1
40 01008049 Carriage Bolt, 3/8-16 x 4.00 2
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

6
72" Fabricated Deck Spindle Assembly - Figure 3
GD: 02004950-12/20/07

7
72" 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 1-3/4 1
300011438 Hex Cap Screw, 3/8-16 x 1-1/2 12
400011861 Hex Cap Screw, #/8-16 x 2-1/2 1
500011925 Hex Cap Screw, 3/8-16, 4.00 1
600012158 Flat Washer, 3/8 12
700022560 Flange Lock Hex Nut, 3/8-16 20
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 Idler Spring 1
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 Flat Washer, .406 ID, 1.0 OD, .105 6
19 01002751 Spacer, .39 ID x .63 OD x 1.75 1
20 01002771 Cotter Pin, .072 x 1.12 Long 2
21 01003123 Spacer .812 ID x .268 LG 2
22 01003245 Spacer, .39 ID x .625 OD x 2.75 1
23 01004478 Aluminum Spindle Support Plate 3
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 Spacer, .760 ID x 2.00 OD x .330 3
28 01008222 Tension Idler U-Bracket 1
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 Hex Cap Screw, 3/4-16, 9.50 1
33 01010014 Spacer, .76 ID x 2.0 OD x .790 1
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 Bearing Sleeve 2
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

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: 02004445-01/10/08
- 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
601002539 Hex Cap Screw 3/8-16 x 4.50 2
701000369 Hex Cap Screw, 3/8 -16 x 1.25 2
801000372 Carriage Bolt, 3/8-16 x .75 LG. 6
901009906 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 Strut Frame 2
13 01004192 Oil Pan Drain Plug w/ Seal 1
14 01006948 Hydro Wheel Motor Backup Plate 2
15 01007309 Hex Nut, 3/8-24 2
16 01008449 Socket Head Capscrew, 1/2-13; 6-1/2 8
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 02001178 Short Pressure Hose Assembly 2
27 02001179 Long Pressure Hose Assembly 2
28 02004648 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 02002701 Hydraulic Tank Assembly 1
34 02002899 Rear Cable Mounting Bracket 2
35 02004442 Hydro Motor, Left Hand Assembly w/ Brake & Drum 1
36 02004441 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: 02002926-10/31/07
- Figure 5