Page 1
SCHEMATIC
TRACTOR - - MODEL NUMBER PO1538D
A
AMMETER
(OPTIONAL)
RED
B
G
L
IGNITION
SWITCH
BLACK
RED
BLACK
BATTERY
RED
FUSE
WHITE
RED
M
STARTER
BLACK
SOLENOID
S
M
A1
CLUTCH / BRAKE
(PEDAL UP)
WHITE
A2
SEAT SWITCH
(NOT OCCUPIED)
BLACK
GROUNDING
CONNECTOR
SPARK
PLUG
(2 PLUGS ON
TWIN CYL. ENGINES)
BLACK
GAP
BLUE
BLACK
BLACK
HOUR
METER
(OPTIONAL)
FUEL
LINE
BLACK
WHITE
ATT'MENT CLUTCH
(CLUTCH OFF)
BLACK
IGNITION
UNIT
IGNITION SWITCH
CIRCUITPOSITION
OFF
M+G+A1
B+A1RUN/LIGHT
B+A1RUN
B + S + A1START
“MAKE”
NONE
A2+L
NONE
NONE
28 VOLTS AC MIN. @ 3600 RPM
(CHARGING SYSTEM DISCONNECTED)
DIODE
14 VOLTS AC MIN. @ 3600 RPM (LIGHTS OFF)
FUEL SHUT-OFF SOLENOID
(IF SO EQUIPPED)
ORANGE
CHARGING SYSTEM OUTPUT
3 AMP DC @ 3600 RPM
RED
LIGHTING SYSTEM OUTPUT
5 AMP AC @ 3600 RPM
NOTE
YOUR TRACTOR IS
EQUIPPED WITH A SPECIAL
BROWN
ALTERNATOR SYSTEM.
THE LIGHTS ARE NOT
CONNECTED TO THE
BATTERY, BUT HAVE THEIR
OWN ELECTRICAL SOURCE.
BECAUSE OF THIS, THE
BRIGHTNESS OF THE LIGHTS
WILL CHANGE WITH ENGINE
SPEED. AT IDLE THE LIGHTS
WILL DIM. AS THE ENGINE IS
SPEEDED UP, THE LIGHTS
NON-REMOVABLE
CONNECTIONS
WILL BECOME THEIR BRIGHTEST.
REMOVABLE
CONNECTIONS
WIRING INSULATED CLIPS
NOTE: IF WIRING INSULATED CLIPS WERE REMOVED FOR
SERVICING OF UNIT, THEY SHOULD BE REPLACED TO
PROPERLY SECURE YOUR WIRING.
ALTERNATOR
BLACK
HEADLIGHTS
27
Page 2
REPAIR PARTS
ELECTRICAL
42
24
TRACTOR - - MODEL NUMBER PO1538D
22
21
41
33
30
27
43
27
25
27
27
26
40
16
16
48
52
8
27
2
1
28
29
90
28
Page 3
REPAIR PARTS
ELECTRICAL
TRACTOR - - MODEL NUMBER PO1538D
KEY PART
NO. NO. DESCRIPTION
1 163465 Battery
2 74760412 Bolt Hex Hd 1/4-20unc X 3/4
8 176689 Box Battery
16 176138 Switch Interlock
21 175685 Harness Asm Light W/4152j
22 4152J Bulb Light #1156
24 4799J Cable Battery 6 Ga 11"red
25 146147 Cable Battery
26 175158 Fuse 20 AMP
27 73510400 Nut Keps Hex 1/4-20 Unc
28 4207J Cable Ground 6 Ga 12"black
29 121305X Switch Plunger Nc Gray
30 175566 Switch Ign
33 140401 Key Ign
40 179720 Harness Ign
41 71110408 Bolt Blk Fin Hex 1/4-20
42 131563 Cover Terminal Red
43 178861 Solenoid
48 140844 Adapter Ammeter
52 141940 Protection Wire Loop
90 180449 Cover Terminal Battery
NOTE: All component dimensions given in U. S.
inches 1 inch = 25.4 mm.
29
Page 4
REPAIR PARTS
CHASSIS
30
TRACTOR - - MODEL NUMBER PO1538D
212
17
24
29
18
208
26
26
31
25
209
11
209
15
209
26
9
25
6
16
24
5
5
209
8
209
53
12
28
51
52
55
57
54
1
13
33
206
3
35
37
10
2
38
3
205
38
3
35
34
26
205
145
37
208
chassis-pl.lt_34
30
Page 5
REPAIR PARTS
CHASSIS
TRACTOR - - MODEL NUMBER PO1538D
KEY PART
NO. NO. DESCRIPTION
1 174620 Chassis
2 176554 Drawbar, Stretch
3 17060612 Screw 3/8-16 x 3/4
5 155272 Bumper, Hood/Dash
6 174643X014 Saddle Silkscreen
8 155138 Clip Retainer Slide-On
9 168347X011 Dash
10 72140608 Bolt, Carriage 3/8-16 x 1
11 174996 Panel Dash LH
12 145660 Clip Tinnerman Grille P.L
13 172105X010 Panel Slkscr Dash RH
15 74180512 Screw Mach TRHD 5/16-18uncx3/4
16 73510500 Nut Keps 5/16-18 Unc
17 159639x428 Hood
18 184921 Bumper Hood
24 74780616 Bolt Fin Hex 3/8-16unc X 1 Gr. 5
25 19131312 Washer 13/32 X 13/16 X 12 Ga
26 73800600 Nut Lock Hex w/Ins 3/8-16 Unc
28 179101 Grille/Lens Asm.
29 140273X599 Lens Grille Private Label
30 169465X428 Fender
31 136619 Bracket Fender Repl 109873x
33 179716X428 Footrest Pnt LH
34 179717X428 Footrest Pnt RH
35 72110606 Bolt Rdhd Sht Sqnk 3/8-16 X3/4
37 17490508 Screw Thdrol 5/16-18 x 1/2 TYT
38 175710 Bracket Asm. Pivot Mower
51 73800400 Nut Lock W/Insert 1/4-20unc
52 19091416 Washer 9/32 x 7/8x16 Ga.
53 144697 Bracket Grille Lh
54 161464 Screw Hex 8-18 x 7/8
55 144696 Bracket Grille Rh
57 74780412 Bolt Fin Hex 1/4-20 unc x .75
145 156524 Rod Pivot Chassis/Hood
205 17490608 Screw Thdrol 3/8-16 x 1/2
206 170165 Bolt Shoulder 5/16-18
208 17670608 Screw Thdrol 3/8-16 x 1/2
209 17000612 Screw Hex Wsh Thdrol 3/8-16
212 156229 Insert Lens Refl ect
--- 5479J Plug Button Blk 359 Dia Choke
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm.
31
Page 6
REPAIR PARTS
0
DRIVE
TRACTOR - - MODEL NUMBER PO1538D
10
13
14
112
16
52
21
8
250
30
4
32
11
12
57
170
51
63
212
59
7
61
12
18
113
51
5
18
6
6
32
30
52
6
56
41
38
39
66
65
64
50
27
49
47
70
116
55
202
15
48
151
51
15
77
96
26
24
78
76
62
35
29
36
37
34
28
22
3
79
26
1
75
250
19
25
2
77
74
26
27
120
36
35
53
drive-saddle_25
32
Page 7
REPAIR PARTS
DRIVE
TRACTOR - - MODEL NUMBER PO1538D
KEY PART
NO. NO. DESCRIPTION
1 - - - - - - - Transaxle Dana Model D4360-139
(Order parts from transaxle manu-
facturer)
2 146682 Spring Return Brake
3 123666X Pulley Transaxle 18"tires
4 12000028 Ring Retainer # 5100-62
5 121520X Strap Torque 30 Degrees RH
6 17060512 Screw 5/16-18 x 3/4
7 162240 Plate Rod Shift T/a
8 131679 Rod Shifter Blk
10 76020416 Pin Cotter 1/8 X 1 Cad
11 105701X Washer Plate Shf 388 Sq Hole
12 19151216 Washer 15/32 X 3/4 X 16 Ga
13 74550412 Bolt 1/4-28 unf Gr. 8 w/Patch
14 10040400 Washer Lock Hvy Helical 1/4
15 74490544 Bolt Hex Flghd 5/16-18 Gr. 5
16 73800500 Nut 5/16-18
18 74780616 Bolt Fin Hex 3/8-16unc X 1 Gr. 5
19 73800600 Nut lock Hex w/Ins 3/8-16 Unc
21 106933X Knob Rd 1/2-13 Plstc Thds Blk
22 130804 Rod Brake LT
24 73350600 Nut Hex Jam 3/8-16 Unc
25 106888X Spring Rod Brake 2 00 Zinc
26 19131316 Washer 13/32 X 13/16 X 16 Ga
27 76020412 Pin Cotter 1/8 X 3/4 Cad
28 175765 Rod Brake Parking LT/YT
29 71673 Cap Brake Parking Black
30 174973 Bracket Transmission
32 74760512 Bolt Fin Hex 5/16-18 x 3/4
34 175578 Shaft Asm Pedal Foot Nibbed
35 120183X Bearing Nylon Blk 629 Id
36 19211616 Washer 21/32 X 1 X 16 Ga
37 1572H Pin Roll 3/16 X 1"
38 179114 Pulley Composite Flat
39 74760648 Bolt Fin Hex 3/8-16 x 3
41 175556 Keeper Belt Idler
47 127783 Pulley Idler V Groove Plastic
KEY PART
NO. NO. DESCRIPTION
48 154407 Bellcrank Clutch Grnd Drv STL
49 123205X Retainer Belt Style Spring
50 72110612 Bolt Carr Sh 3/8-16 x 1-1/2 Gr. 5
51 73680600 Nut Crownlock 3/8-16 Unc
52 73680500 Nut Crownlock 5/16-18 unc
53 105710X Link Clutch 7 66
55 105709X Spring Return Clutch 6 75
56 17060620 Screw 3/8-16 x 1-1/4
57 160855 V-Belt Ground Drive 9530
59 169691 Keeper Belt Chassis Span Ctr
61 17120614 Screw 3/8-16 x .875
62 8883R Cover Pedal Blk Round
63 175410 Engine Pulley LT/YT
64 173937 Bolt Hex 7/16-20 x 4 Gr 5
65 10040700 Washer Lock Hvy Hlcl Spr 7/16
66 154778 Keeper Belt Engine
70 134683 Guide Belt Mower Drive RH
74 109505X Spacer Axle
75 121749X Washer 25/32 X 1 1/4 X 16 Ga
76 12000001 E-ring #5133-75
77 123583X Key Square 2 0 X 1845/ 1865
78 121748X Washer 25/32 X 1-5/8 X 16 Ga
79 2228M Key Woodruff
96 4497H Retainer Spring 1"
112 19091210 Washer 9/32 X 3/4 X 10 Ga
113 127285X Strap Torque 90 Degrees LH
116 72140608 Bolt Rdhd Sq Neck 3/8-16 x 1
120 73900600 Nut Lock Flg 3/8-16
150 175456 Spacer Retainer Lt
151 19133210 Washer 13/32 x 2 x 10 Ga.
170 178394 Keeper, Belt Transaxle
202 72110614 Bolt Carr Sh 3/8-16 x 1-3/4 Gr.5
212 145212 Nut Hex Flg Lock
250 17060612 Screw 3/8-16 x 3/4
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
33
Page 8
REPAIR PARTS
STEERING
37
44
51
TRACTOR - - MODEL NUMBER PO1538D
38
12
39
1
41
42
37
36
54
91
43
68
29
15
15
15
88
71
29
17
82
29
46
8
6
9
2
7
9
5
3
40
47
65
85
11
10
68
13
46
8
85
32
26
28
30
6
9
67
67
67
47
7
9
5
4
43
43
6
8
34
Page 9
REPAIR PARTS
STEERING
TRACTOR - - MODEL NUMBER PO1538D
KEY PART
NO. NO. DESCRIPTION
1 140044X428 Wheel Steering
2 175131 Axle Asm
3 169840 Spindle Asm LH
4 169839 Spindle Asm RH
5 6266H Bearing Race Thrust Harden
6 121748X Washer 25/32 x 1-5/8 x 16 Ga
7 19272016 Washer 27/32 x 1-1/4 x 16 Ga
8 12000029 Ring Klip #t5304-75
9 3366R Bearing Col Strg Blk
10 175121 Link Drag
11 10040600 Washer Lock Hvy Hlcl Spr 3/8
12 73940800 Nut Hex Jam Toplock 1/2-20
13 136518 Spacer earing Axle Front
15 145212 Hexfl ange Lock
17 180641 Shaft Asm Strg
26 126847X Bushing Link Drag Blk LR
28 19131416 Washer 13/32 x 7/8 x 16 Ga
29 17060612 Screw 3/8-16 x 3/4
30 76020412 Pin Cotter 1/8 x 3/4 Cad
32 130465 Rod Tie Wire Form 19 75 Mech
36 155099 Bushing Strg 5/8 Id Dash
37 152927 Screw
38 140045X428 Cap Wheel Steer Ayp
39 19183812 Washer 9/16 x 2-3/8
40 7810H Nut Lock Center 3/8-24un
41 100711L Adaptor Wheel Strg
42 145054X428 Boot Dash Mtl Steering Blk
43 121749X Washer 25/32 X 1 1/4 X 16 Ga
44 180640 Extension Steering
46 121232X Cap Spindle Fr Top Blk
47 183226 Fitting Grease
51 73540400 Nut 1/4-28
54 71130420 Bolt Hex 1/4-28 x 1-1/4
65 160367 Spacer Brace Axle
67 72110618 Bolt RDHD SQNK 3/8-16 x 2-1/4
68 169827 Brace Axle
71 175146 Steering Asm.
82 169835 Bracket Susp Chassis Front
85 133835 Fastener Christmas Tree
88 175118 Bolt Shoulder 7/16-20
91 175553 Clip Steering
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm.
35
Page 10
REPAIR PARTS
ENGINE
TRACTOR - - MODEL NUMBER PO1538D
2
32
3
72
1
78
44
46
16
81
38
14
78
13
4
33
31
40
29
37
33
OPTIONAL EQUIPMENT
Spark Arrester
KEY PART
NO. NO. DESCRIPTION
1 170551 Control Th/ch Flag
2 17720408 Screw Hex Thd Cut 1/4-20 x 1/2
3 - - - - - - - - Engine, B&S 282H07
(Order parts from engine manufac-
turer)
4 137352 Muffl er Exhaust B&S
13 165291 Gasket Eng 1 313 Id Tin Plated
14 148456 Tube Drain Oil Easy
16 11050600 Washer Lock Ext Tooth 3/8
23 169837 Shield BRN/DBR Guard
29 137180 Kit Spark Arrestor (Flat Scrn)
31 184900 Tank Fuel Front
32 140527 Cap Asm Fuel
45
23
KEY PART
NO. NO. DESCRIPTION
33 123487X Clamp Hose
37 137040 Line Fuel 20"
38 181654 Plug Drain Oil
40 124028X Bushing Snap Nyl Blk Fuel Line
44 17670412 Screw Thdrol 1/4-20 x 3/4
45 17000612 Screw Hex Wsh Thdrol 3/8-16
46 19091416 Washer 9/32 X 7/8 X 16 Ga
72 183906 Screw Scocket Head 5/16-18 x 1
78 17060620 Screw 3/8-16 x 1-1/4
81 73510400 Nut Keps Hex 1/4-20 Unc
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
36
Page 11
REPAIR PARTS
SEAT
TRACTOR - - MODEL NUMBER PO1538D
1
8
14
16
15
24
26
25
9
8
9
7
10
7
5
6
22
2
21
5
23
13
17
KEY PART
NO. NO. DESCRIPTION
1 127426X Seat
2 140551 Bracket Seat Pivot
3 71110616 Bolt Hex 3/8 - 16 X 1
4 19131610 Washer 13/32 X 1 X10Ga.
5 145006 Clip Push-In Hinged
6 73800600 Nut Lock Hex w/Ins 3/8 - 16
7 124181X Spring Seat Cprsn 2 250 Blk Zi
8 17000616 Screw 3/8-16 x 1.5
9 19131614 Washer 13/32 X 1 X 14 Ga
10 182493 Pan Pnt Seat (Blk)
12 121246X Bracket Pnt Mounting Switch
13 121248X Bushing Snap Blk Nyl
12
4
3
KEY PART
NO. NO. DESCRIPTION
14 72050412 Bolt Rdhd Sht Nk 1/4 - 20 X 1 -1/2
15 134300 Spacer Split .28 X .96
16 121250X Spring Cprsn
17 123976X Nut Lock 1/4 Lge Flg
21 171852 Bolt Shoul der 5/16-18 Unc-2A
22 73800500 Nut Lock Hex w/Ins 5/16 - 18
23 71110814 Bolt Hex
24 19171912 Washer 17/32 X 1-3/16 X 12 Ga
25 127018X Bolt Shoul der 5/16-18 X .62
26 10040800 Washer Lock Hvy Hlcl Spr 1/2
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm.
37
Page 12
REPAIR PARTS
DECALS
8
9
7
3
TRACTOR - - MODEL NUMBER PO1538D
2
12
4
14
16
6
8
15
1
KEY PART
NO. NO. DESCRIPTION
1 181251 Decal, Clutch/Brake Eng/Fr
2 187580 Decal, Replacement
3 184768 Decal, Engine HP
4 170563 Decal Warning
6 157140 Decal, Fender Danger English
7 158168 Decal Ins Str Wh
8 172200 Decal, Fender 5 Sp.
9 158166 Decal Fender
WHEELS & TIRES
1
2
6
5,8
4,10
7
3,9
17
11
KEY PART
NO. NO. DESCRIPTION
12 181552 Decal, Hood RH
14 181553 Decal, Hood LH
15 145005 Decal, Caution, Battery
16 157163 Decal, Oper Sdl P/L Gear Dr Eng
17 136832 Decal, V-Belt Sch.
- - 138311 Decal, Handle Lft Height Adj.
- - 187570 Manual, Owner's English
- - 187571 Manual, Owner's French
KEY PART
NO. NO. DESCRIPTION
1 59192 Cap, Tire valve
2 65139 Stem, Valve
3 106222X Tire, Front
4 59904 Tube, Front (Service item only)
5 106732X624 Rim assembly, 6"front
6 278H Fitting, Grease (Front wheel only)
7 9040H Bearing, Flange (Front wheel only)
8 106108X624 Rim assembly, 8" rear
9 124635X Tire, Rear
10 7152J Tube, Rear (Service item only)
11 104757X428 Cap, Hub Axle
- - 144334 Sealant, Tire (10 oz. Tube)
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
38
Page 13
REPAIR PARTS
MOWER LIFT
TRACTOR - - MODEL NUMBER PO1538D
7
8
5
13
13
11
19
31
32
13
4
6
12
13
19
31
32
KEY PART
NO. NO. DESCRIPTION
1 159460 Wire Asm Inner/Sprg w/plunger
2 159471 Shaft Asm Lift RH
3 105767X Pin Groove 1 500 Zinc
4 12000002 E Ring #5133-62
5 19211621 Washer 21/32 X 1 X 21 Ga
6 120183X Bearing Nylon Blk 629 Id
7 109413X Grip Handle Bicycle Matte Blk
8 124526X Button Plunger Black
11 139865 Link Lift LH Fixed Length
12 139866 Link Lift RH Fixed Length
13 4939M Retainer Spring
15 173288 Link Front
16 73350800 Nut Jam Hex 1/2-13 Unc
17 175689 Trunnion
18 73800800 Nut Lockw/Wsh 1/2-13 Unc
19 139868 Arm Suspension Rear
20 163552 Retainer, Spring
31 169865 Bearing Pvt Lift
32 73540600 Nut Crownlock 3/8-24
3
2
20
15
1
6
5
4
20
18
17
16
20
20
15
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm.
39
Page 14
REPAIR PARTS
MOWER DECK
TRACTOR - - MODEL NUMBER PO1538D
152
151
158
21
153
157
154
153
67
156
55
123
155
54
89
107
69
122
40
2
4
56
3
8
113
146
36
89
40
150
45
108
36
33
31
53
32
148
68
2
110
1
109
30
21
88
87
89
26
28
25
24
96
97
21
2
2
86
16
3
2
15
29
14
21
23
5
6
4
19
21
149
13
11
10
27
9
8
40
Page 15
REPAIR PARTS
MOWER DECK
TRACTOR - - MODEL NUMBER PO1538D
KEY PART
NO. NO. DESCRIPTION
1 170280 Mower Housing Assembly
2 72140506 Bolt Carriage 5/16-18 x 3/4
3 138017 Bracket Asm Fr. Sway Bar
4 169970 Bracket Deck Sway Bar 38"/42"
5 4939M Retainer Spring
6 178024 Bar Sway Deck
8 850857 Bolt 3/8-24 x 1.25 Grade 8
9 10030600 Washer, Lock 3/8
10 140296 Washer, Hardened
11 138497 Blade Mower
13 137645 Shaft Assembly, Mandrel, Vented
(Includes Key Number 6)
14 128774 Housing, Mandrel, Vented
15 110485X Bearing, Ball, Mandrel
16 174493 Stripper, Vented Mower Deck
19 132827 Bolt, Shoulder
21 73680500 Nut
23 137607 Bracket, Mower Defl ector
24 105304X Cap, Sleeve
25 123713X Spring, Torsion, Defl ector
26 110452X Nut, Push
27 106736X428 Shield, Defl ector
28 19111016 Washer 11/32 x 5/8 x 16 Gauge
29 106735X Rod, Hinge
30 173984 Screw Thdrol.
31 129963 Washer, Spacer
32 153532 Pulley, Mandrel
33 178342 Nut, Toplock
36 131494 Pulley, Idler, Flat
40 73680600 Nut, Crownlock 3/8-16 Unc
45 4497H Retainer
53 130840 Brake Assembly
54 178515 Washer, Hardened
55 133840 Idler Arm Assembly
56 165723 Spacer, Retainer
KEY PART
NO. NO. DESCRIPTION
67 106932X Knob
68 144200 V-Belt, 42" Mower
69 76020312 Pin, Cotter 3/32 x 3/4
86 7631J Runner, LH
87 128772 Runner, RH
88 19111216 Washer 11/32 x 3/4 x 16 Ga
89 19131612 Washer 13/32 x 1 x 12 Ga.
96 74930620 Bolt 3/8-16 x 1-1/4 Mulcher
97 73930600 Nut Centerlock 3/8-16 Unc
107 133502 Spacer Retainer
108 133503 Stiffener, Idler Arm
109 74760640 Bolt, Hex Hd 3/8-16 x 2-1/2
110 142587 Upstop Deck Front 38"
113 17060512 Screw 5/16-1/ x 3/4
122 131289 Rod, Brake LH
123 169971 Rod, Brake RH
146 165891 Bolt Carriage Idler
148 169022 Spring Return Idler
149 165898 Retainer Spring Yellow
150 19091216 Washer 9/32 x 3/4 x 16 Ga.
151 169670 Bracket Clutch Cable
152 172758 Clutch Cable 38"/46"
153 169674 Washer Flat 3/8" Type B
154 169675 Spring Retainer
155 169671 Spring Retention LVR CLTCH CAB
156 169672 Spacer Clutch Cable
157 169669 Rod Clutch Cable 3/8"
158 17720408 Screw Hex Thd Cut 1/4-20 x 1/2
- - 130794 Mandrel Assembly (Includes Housing, Shaft and Shaft Hardware Only
- Pulley Not Included)
- - 170317 Replacement Mower, Complete
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
41
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