TRACTOR - MODEL NUMBER SPGT25H48A, PRODUCT NUMBER 954 57 03-90
SCHEMATIC
AMMETER
(OPTIONAL)
RED
IGNITION
SWITCH
BLACK
BROWN
RED
BATTERY
A
RED
FUSE
WHITE
BLACK
S
B
M
G
A1
A2L
CG
B
RED
F
H
E
A
BLACK
D
ORANGE
PTO (DISENGAGED)
BLACK
WHITE
CLUTCH / BRAKE
BLACK
(PEDAL UP)
RED
BLACK
RED
WHITE
SOLENOID
ELECTRIC CLUTCH
85 86
87
RED
M
STARTER
BLACK
30
BLACK
BLACK
87A
GREEN
SEAT SWITCH
(NOT OCCUPIED)
FUEL
LINE
BLUE
GREEN
BLACK
HOUR
METER
(OPTIONAL)
IGNITION
UNIT
OPERATOR
PRESENCE
RELAY #1
BLACK
SPARK PLUGS
ON TWIN CYL. ENGINES)
BLACK
GAP
(2 PLUGS
IGNITION SWITCH
OFF
CIRCUITPOSITION
M + G + A1
B + S + A1START
“MAKE”
B + A1ON + LIGHTS
B + A1ON
NONE
L + A2
NONE
NONE
WIRING INSULATED CLIPS
NOTE: IF WIRING INSULATED
CLIPS WERE REMOVED FOR
SERVICING OF UNIT, THEY
SHOULD BE REPLACED TO
PROPERLY SECURE YOUR
WIRING.
FUEL SHUT-OFF
CHARGING SYSTEM OUTPUT
16 AMP DC @ 3600 RPM
RED
87
87A
8586
30
RELAY
REMOVABLE
CONNECTIONS
SOLENOID
RED
REGULATOR
PTO SWITCH
CIRCUITPOSITION
OFF
NON-REMOVABLE
CONNECTIONS
C + G, B + H
C + F, B + E, A + DON
YELLOW
ALTERNATOR
28 VOLTS AC @ 3600 RPM (REGULATOR DISCONNECTED)
BROWN
HEADLIGHTS
G
FC
E
H
B
A
D
BLACK
35
REPAIR PARTS
TRACTOR - MODEL NUMBER SPGT25H48A, PRODUCT NUMBER 954 57 03-90
ELECTRICAL
22
24
27
79
21
41
42
43
40
81
27
33
30
25
D
.
C
.
A
M
P
E
R
E
S
10
11
45
89
46
50
27
26
12
2
1
8
12
16
29
55
28
36
TRACTOR - MODEL NUMBER SPGT25H48A, PRODUCT NUMBER 954 57 03-90
ELECTRICAL
KEY PART
NO. NO. DESCRIPTION
1 144927 Battery
2 74760412 Bolt Hex Head 1/4-20 x 3/4
8 7603J Tray, Bat tery
10 145211 Bolt Btr Frt 1/4-20 X 7.5 zinc
11 150109 Holdown Battery Front Mount
12 145769 Nut Push Nylon 1/4"
16 176138 Switch Interlock Push-In
21 175688 Harness Headlight w/Bulbs
22 4152J Bulb Light
24 185464 Cable, Battery
25 146149 Cable, Battery
26 108824X Fuse
27 73510400 Nut Keps Hex 1/4-20 Unc
28 170697 Cable, Ground
29 160784 Switch, Plunger
30 175566 Switch, Ign
33 140401 Key
40 170238 Harness, Ignition
41 17720408 Screw 1/4-20 x 1/2
42 131563 Cover, Terminal Red
43 178861 Solenoid
45 122822X Ammeter
46 169635 Hourmeter Snap-In
50 174651 Switch, PTO
79 175242 Socket, Light Bulb
81 109748X Relay Asm.
89 169639 Bracket Snap-In
NOTE: All component dimensions given in U.S. inches.
1 inch = 25.4 mm.
37
TRACTOR - MODEL NUMBER SPGT25H48A, PRODUCT NUMBER 954 57 03-90
CHASSIS AND ENCLOSURES
157
14
153
130
165
162
47
17
21
141
161
158
37
17
58
28
47
17
20
19
2
17
166
86
91
17
138
43
56
99
5
130
144
36
34
68
35
7
7
16
17
140
148
31
130
18
122
150
159
39
6
33
17
45
122
17
156
8
146
156
17
17
139
1
17
167
7
30
139
32
36
142
50
44
47
130
143
152
156
17
130
17
17
17
17
24
38
TRACTOR - MODEL NUMBER SPGT25H48A, PRODUCT NUMBER 954 57 03-90
CHASSIS AND ENCLOSURES
KEY PART
NO. NO. DESCRIPTION
1 180375 Rail, Frame RH
2 175282 Drawbar, Gt
5 163976X428 Dash
6 157882 Dash Asm., Lower
7 17720408 Screw, Thd Cut 1/4-20 x 1/2
8 184668 Support, Battery
14 175259X417 Hood Asm., Pnt
16 121794X Cover, Access
17 17060612 Screw, 3/8-16 x 3/4
18 175289X428 Grille
19 19131312 Washer 13/32 x 13/16 x 12 Ga.
20 74780616 Bolt, Fin Hex 3/8-16 x 1
21 73800600 Nut, Lock Hex w/Ins. 3/8-16 Unc
24 179717X417 Footrest, RH
28 179716X417 Footrest, LH
30 145052 Saddle, Hydro 1995
31 161419 Bracket, Supt 1-pc VGT Steering
32 161327 Bracket, Pivot Chassis LH
33 161326 Bracket, Pivot Chassis RH
34 177018 Plate Asm. Engine Chassis
35 19111116 Washer 11/32 x 11/16 x 16 Ga.
36 17060512 Screw 5/16-18 x 3/4
37 178510X417 Fender, Pnt.
39 175278 Bracket, Axle Front
43 136939 Bracket, Spnsn Front Lh
44 136940 Bracket, Spnsn Front Rh
45 176018 Bracket Asm., Susp Chassis Rh
47 17490608 Screw Thdrol 3/8-16 x 1/2 TYT
50 175476 Bracket, Chassis Front
56 176016 Bracket Asm., Susp Chassis Lh
58 183569 Bracket Asm., Fender
KEY PART
NO. NO. DESCRIPTION
68 17490508 Screw, Thd 5/16-18 x 1/2
86 74780716 Bolt, Fin Hex 7/16-14 Unc x 1
91 180374 Rail, Frame Lh
99 177143 Rod By Pass
122 161464 Screw Hex Wshd 8-18 x 7/8
130 171875 Screw HWHD Hi-Lo #13-16 x 3/4
138 179125X428 Cupholder YTGT
139 171873 Bolt Shoulder 5/16-18 TT
140 163806 Magnet YTGT
141 163805 Stricker Plate YTGT
142 161897 Bracket Dash RH
143 169847X428 Skirt Grill RH
144 161900 Bracket Dash LH
146 169848X428 Skirt Grill LH
148 164655 Extrusion Bumper
150 161237 Duct Heat Hood
152 177956 Shield Browning
153 179761 Light Box Asm. w/Lens
156 17000512 Screw 5/16-18 x 3/4
157 161840 Lens, Bar
158 17670608 Screw Thdrol 3/8-16 x 1/2
159 17000612 Screw 3/8-16 x 3/4
161 179612X428 Console Fuel Window
162 142432 Screw 1/4-1/2
165 183554 Bracket Support Tank
166 73680700 Nut, Crownlock 7/16-14Unc
167 184672 Bushing Snap
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
39
TRACTOR - MODEL NUMBER SPGT25H48A, PRODUCT NUMBER 954 57 03-90
DRIVE
55
52
129
48
120
146
61
130
42
135
137
6
46
68
64
37
38
73
123
94
22
56
133
148
111
89
23
126
94
120
98
89
125
124
152
38
37
36
35
34
29
131
151
58
77
114
39
40
114
41
89
132
77
74
65
117
50
128
48
121
117
2
117
143
20
147
70
127
120
153
142
122
9
7
69
33
drive_6-vgt
3
145
106
107
1
108
2
145
138
3
112
69
33
40