Cub Cadet 1525 User Manual
Parts Manual
Series 1500
Hydrostatic Lawn Tractor
Models 1525
CUB CADET LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
PRINTED IN U.S.A. FORM NO. 769-00578
(11/02)
-2-
MODELS 1525
TABLE OF CONTENTS
DESCRIPTION PAGE
Axle, Front ...................................................... . 6
Battery ............................................................. 16
Brake Pedal ..................................................... 12
Head Lamp ...................................................... 18
Mower Deck, 38-inch........................................ 22
Pedal Controls ................................................. 12
Dash Panel ...................................................... 16
Drive System ................................................... 4
Electrical Sysytem ........................................... 26
Engine
Air Filter/ Muffler Gasket ...............................
Cooling .........................................................
Carburetor/Intake Manifold ..........................
Engine Control ..............................................
Cylinder/Crankcase ......................................
Piston/Crankshaft .........................................
Engine Electrical/Ignition ..............................
Fuel Pump/Filter ...........................................
Lubrication ....................................................
Electric Starter ..............................................
Valve/Camshaft ............................................
37
33
36
35
28
30
34
38
32
39
31
DESCRIPTION PAGE
Engine Accessories ......................................... 15
Fender ............................................................. 10
Frame .............................................................. 8
Fuel Tank ......................................................... 10
Grille ................................................................ 18
Hood ................................................................ 18
Deck Lift Handle/Linkage ................................. 11
Muffler .............................................................. 15
PTO Clutch ............................. ..... ...... .............. 20
Seat ................................................................. 14
Side Panels ..................................................... 18
Steering ........................................................... 6
Transmission, Hydrostatic ............................... 24
Wheels, Front & Rear ...................................... 3
NOTE, For painted parts, please ref er
to the list of color codes below. Please
add the appli c able co lor co de , where ve r
needed, to the part number to order a
replacement part. For instance, if a part,
numbered 700-xxxx, is painted Cub
Yellow, the part number to o rder would
be 700-xxxx-0716.
Cub Yellow: 0716
Cub Beige: 0499
Powder Black: 0637
-3-
WHEELS
1
2
3
4
REF.
NO.
1 734-3189 Tire, Turf, Cub Cadet 20 x 9 x 8 2
2 634-0246A Rim Assembly, 8.0 x 6.19 (4-Lug) 2
3 712-3050 Lug Nut, 7/16-14 8
4 741-3032 Bearing, Ball, .75 ID x 1.75 OD 4
5 634-3015 Rim Assembly, Bead Lock, 6 x 4.5 2
6 731-3020 Hub Cap 2
7 734-3186 Tire, Turf, Cub Cadet 15 x 6 x 6 2
— 737-0224 Gease Fitting 2
— 734-0255 Valve, Tubeless Air 4
PART
NUMBER DESCRIPTION QTY.
4
7
5
6
-4-
19
27
20
DRIVE SYSTEM
A
18
18
1
A
42
3
2
28
21
13
B
34
B
B
33
36
B
23
29
49
35
39
17
11
22
31
18
8
45
47
12
5
40
41
48
46
52
37
8
50
25
44
26
6
36
4
16
10
36
7
32
30
51
23
35
36
Attach Spring (732-1716) Here
9
44
9
24
43
38
14
15
36
23
-5-
DRIVE SYSTEM
REF.
PART
NO.
NUMBER DESCRIPTION QTY.
1 17840 Bracket, Mounting, Transaxle 2
2 618-0365 Hub Assembly, Wheel 2
3 618-0667 Transmission, Hydrost atic 1
4 629-0949A Harness Assembly, Ground & Rev erse 1
5 683-0251 Bra cket Assembly, Idler, Center Dbl 1
6 710-0176 Hex Cap S crew, 5/16-18, 2.75, Gr 5 4
7 710-0227 Screw, #8-18, 0.500 2
8 710-0344 Hex Cap Sc rew, 3/8-16, 1.50, Gr5 3
9 710-0726 Screw, 5/16-12, 0.75 6
10 710-0599 Screw, 1/4-20, 0.5 1
11 710-3007 Screw, #12-24, 0.375 3
12 710-3011 Hex Cap Screw, 3/8-16, 2.25, Gr5 1
13 710-3103 Hex Cap Screw, 5/16-18, 2.00, Gr5 1
14 711-0677 Ferrule, 5/16-18 x .312 Dia 1
15 711-0832 Ferrule, 3/8-24 x .375 Dia 1
16 712-0291 Nut, Hex Lock, 1/4-20 1
17 712-0333 Nut, Hex, 1/2-20, Gr2 1
18 712-0431 Nut, Flange Lock, 3/8-16 4
19 712-1329 Nut, 3/4-16, Grb, Hx 2
20 712-3004A Nut, Flange Lock, 5/16-18, Gr5 5
21 712-3010 Nut, Hex, 5/16-18, Gr5 1
22 712-3017 Nut, Hex, 3/8-16, Gr8 3
23 714-0104 Pin, Cotter, .072 Dia. x 1.13 Lg 2
24 714-0111 Pin, Cotter, 3/32, 1.0 1
25 725-0157 Cable, Tie, 3/16 x .05 x 7.4 2
26 725-1644 Switch, Spring, Short 1
27 726-0154 Tie, Cable, Push Mount 7.5 Lg 1
28 726-0320 Plate, Insulator Nut 1
29 731-1449A Fan, Blade, 10” 1
30 732-0209 Spring, .48 OD x 2.03 Extension 1
31 732-0429A Spring, Extension, .50 Dia x 3.97 Lg 1
32 732-0716 Spring, Extension, .59 OD x 4.00 Lg 1
33 732-0729 Ring, Wire 1
34 732-0994 Spring, Extension, .500 Dia x 7.0 Lg 1
35 732-3118 Spring, Extension, 3/8 OD x 1.44 Lg 1
36 736-0140 Washer, Flat, .385 x .62 x .063 3
37 736-0169 Washer, Lock, 3/8 , Regular Duty 1
38 736-0275 Washer, Flat, .344 x .688 x .065 1
39 736-0921 Washer, Lock, 1/2 , Regular Duty 1
40 736-3010 Washer, Flat, .407 x .812 x .135 Hdn 1
41 738-0372B Spacer, Shoulder, 1.00 x .38 x .38 1
42 747-1149 Rod, Hydro Bypass 1
43 747-1150 Rod, Brake, Hydro 1
44 747-1151 Rod, Control, Hydro 1
45 750-0535 Spacer, .376 ID x .625 OD x .2 2 1
46 754-0640 Belt, V Type, Poly 1
47 756-0116 Pulley, Idler, V Type x 3.06 Dia 2
48 756-0981A Pulley, Idler, Flat 2.75 OD 1
49 756-1166 Pulley, Input, 5.0 Dia 1
50 783-0810 Bracket, Transmission, Torque Hydro 1
51 783-1019 Bracket, Actuator, Switch 1
52 756-0978A Pulley, Engine, 3.56 Dia. 1
29
14
18
-6-
STEERING
4
30
28
23
1
25
19
20
11
7
15
8
10
17
22
3
7
9
2
19
9
13
5
27
6
12
21
26
24
-7-
STEERING
REF.
NO.
1 710-0514 Hex Cap Screw, 3/8-16, 1.00, Gr5, Std 2
2 711-1408 Link, Drag, RH 1
3 711-1409A Link, Drag, LH 1
4 712-0237 Nut, Hex Lock, 5/16-24 1
5 712-0240 Nut, Jam, 7/16-20, Gr2 2
6 712-0241 Nut, Hex, 3/8-24, Gr5 2
7 712-0431 Nut, Flange Lock, 3/8-16 4
8 712-0459 Nut, Flange Lock, 7/16-20 1
9 712-3004A Nut, Flange Lock, 5/16-18 2
10 717-1550D Gear, Steering, 11/90 Ratio 1
11 717-1554 Gear, Pinion , Steering 1
12 723-0610 Ball Joint, 7/16-20 2
13 736-0169 Washer, Lock, 3/8 , Regular Duty 2
14 736-0242 Washer, Bell, .340 x .872 x .060 1
15 736-3084 Washer, Flat, .510 x 1.120 x .060 1
16 737-3007 Grease, Alvania Ep 2 1
17 738-0372B Spacer, Shoulder, 1.00 x .38 x .38 2
18 738-1194 Shaft, Steering, .625 OD x 25.00 Lg 1
19 741-0475 Bushing, Plastic, .380 ID 2
20 741-0656 Bearing, Hex Flange, 5/8 1
21 683-0605 Axle Assembly, LH .750 Dia 1
22 683-0606 Axle Assembly, RH .750 Dia 1
23 712-0417A Nut, Hex, Flange, 5/8-18 2
24 714-0162 Pin, Cot, 5/32, 1.25 2
25 719-05 83 Axle, Pivot, Cast .750 Dia 1
26 736-0866 Washer, Flat, .755 x 1.92 x.060 2
27 738-10 11 Spacer, Shoulder, .500 x 2.230, 3/8-16 2
28 731-3209 Wheel, Steering, Soft Grip, Three Spoke 1
29 731-32 10 Cover, Steering Wheel 1
30 736-04062 Washer, Flat , .344 x 1.5 x .10 1
PART
NUMBER DESCRIPTION QTY.
-8-
FRAME
5
18
5
13
5
16
5
5
10
13
23
12
18
16
22
10
7
14
6
21
2
725-04039
REF. ONLY
5
1
19
4
17
6
20
15
8
5
17
18
9
11
3
-9-
FRAME
REF.
NO.
1 17962 Plate, Switch 1
2 683-0304A Frame Assembly, Lower 1
3 683-0612 Bumper Assem bly 1
4 710-0224 Screw, Hex Wa sh. Hd. Tapp, 10-16 x .5 2
5 710-0604A Screw, Self-tapping, 5/16-18, 0.625 20
6 710-1260A Screw, 5/16-18, 0.750 2
7 710-1652 Screw, Hex Wash. Hd. Tapp, 1/4-20 x 0.625 1
8 711-0332 Pin, Clevis, .50 D ia x .78 Lg 2
9 712-0431 Nut, Flange Lock, 3/8-16 2
10 712-0459 Nu t, Flange Lock, 7/16-20 2
11 714-0145 Pin, Cl ick, .092 x 1.64 Lg 2
12 722-30 22 Foam Tape, .625 x .25 18
13 732-04035 Spring, Compression, 1.28 OD x 3.125 Lg 2
14 736-0222 Washer, Lock, Ext 1/4 2
15 736-0331 Washer, Bell, .390 x 1.13 x .062 2
16 736-0407 Washer, Bell .45 x 1.00 x .062 2
17 738-0143 Sh oulder Screw, 3/8-16 2
18 738-1020 Shoulder Screw .625 x .500, 7/16-20 2
19 783-0726B Bracket, Pivot, Support RH 1
20 783-0727A Bracket, Pivot, Support LH 1
21 783-0728 Bracket, Pivot, Bar 1
22 783-1462 Frame, Upper, Cub 1500 1
23 783-14 63 Bracket, Frame, Seat 1
PART
NUMBER DESCRIPTION QTY.
-10-
FENDER & FUEL TANK
5
2
9
14
6
2
10
3
13
15
12
1
8
REF.
NO.
1 710-0260A Bolt, Carriage, 5/16-18 x .62 Lg 2
2 710-0726 Screw, 5/16-12, 0.75 8
3 710-0895 Screw, 1/4-15, 0.750 9
4 712-3004A Nut, Flange Lock, 5/16-18 2
5 731-2616 Cover, Fender, RH 1
6 731-2617 Cover, Fender, LH 1
7 736-3078 Washer, Flat, .349 x 1.00 x .063 2
8 783-0677 Bracket, Lift, Adjustment 1
9 783-0715B Bracket, Seat, Mount 2
10 783-1461 Fender 1
11 726-3046 Clip, Ratchet, .250 Dia 12
12 735-0697 Pad, Foot, LH 1
13 735-0698A Pad, Foot, RH 1
14 751-0819A Tank, Fuel 1
15 751-3124B Cap, Fuel 1
PART
NUMBER DESCRIPTION QTY.
11
1
7
4
7
4
-11-
LIFT ASSEMBLY
1
17
9
21
10
20
22
REF.
NO.
1 683-0197B Shaft Assembly, Lift 1
2 711-0332 Pin, Clevis, .50 Dia x .78 Lg 2
3 712-0206 Nut, Hex, 1/2-13, Gr5 2
4 712-0431 Nut, Flange Lock, 3/8-16 2
5 712-3004A Nut, Flange Lock, 5/16-18, Gr5 2
6 712-3083
7 714-0104 Pin, Cotter, .072 Dia. x 1.13 Lg 2
8 714-0111 Pin, Cotter, 3/32, 1.0 2
9 714-0145 Pin, Click, .092 x 1.64 Lg 2
10 716-0106 E-ring, .625 Dia. Shaft 2
11 720-0311 Grip, Handle 1
12 732-0874 Spring, Torsion 1
13 736-0160 Washer, Flat, .53 x .93 x .050 2
14 736-0275 Washer, Flat, .344 x .688 x .065 2
15 736-0921 Washer, Lock, 1/2 , Regular Duty 2
16 736-3019 Washer, Flat, .531 x 1.062 x .134 2
17 736-3084 Washer, Flat, .510 x 1.120 x .060 3
18 738-0138A Screw, Hex Cap, 5/16-18x.620 Gr2 2
19 738-0143 Shoulder Screw, 3/8-16 2
20 741-0225
21 741-0715
22 746-0968 Cable, Lift, 16.16 Lg 2
23 747-1111A Handle, Lift 1
24 747-1130B Rod, Deck, Front Adjustment .5" Dia 1
25 756-1154 Pulley, Roller 2
26 783-0678A Lift, Arm 2
27 783-0720A Bracket, Adjustment, Front Deck Rod 1
28 736-0204 Washer, Flat, .344 x .62 2
PART
NUMBER DESCRIPTION QTY.
25
5
28
8
10
14
21
12
B
Nut, Hex
Bearing, Hex
Bearing,
7
20
25
11
18
B
26
Lock
, 1/2-13, Gr8, Nylon
Flange 2
Flange
, Snap .500 ID
23
13
4
22
18
A
19
24
5
28
A
2
2
8
26
4
19
3
15
17
13
2
3
15
16
9
27
6
12
-12-
PEDAL ASSEMBLY
10
6
6
11
23
19
17
26
REF. ONLY
25
8
7
10
2
10
29
27
22
5
24
9
13
21
10
15
24
16
18
30
20
4
14
3
28
Hook to Flange
In Frame (783-065 0)
11
1
9
23
19
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