AYP Q12538B Parts List

SCHEMATIC

TRACTOR - - MODEL NUMBER Q12538B

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

GAP

(2 PLUGS ON

TWIN CYL. ENGINES)

BLACK

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

REPAIR PARTS

ELECTRICAL

42

24

TRACTOR - - MODEL NUMBER Q12538B

2221

41

33

30

27

43

27

25

27

27

26

40

16

16

48

8

28

27

2

1

29

28

REPAIR P ARTS

ELECTRICAL

TRACTOR - - MODEL NUMBER Q12538B

KEY P ART
NO . NO . DESCRIPTION

1 144925 Battery 12 Volt 25 Amp
2 74760412 Bolt Hex Hd 1/4-20unc X 3/4
8 156417 Case Battery Mech Hiinge
16 153664 Switch Interlock Push-In
21 166181 Harness Asm Light W/4152j
22 4152J Bulb Light #1156
24 4799J Cable Battery 6 Ga 11"red
25 146147 Cable Battery
26 166180 Fuse 15 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 163968 Switch Ign
33 140403 Key Ign
40 170217 Harness Ign
41 71110408 Bolt Blk Fin Hex 1/4-20
42 131563 Cover Terminal Red
43 145673 Solenoid
48 140844 Adapter Ammeter
52 141940 Protection Wire Loop

NOTE: All component dimensions given in U. S.

inches 1 inch = 25.4 mm.

29

REPAIR P ARTS

CHASSIS

TRACTOR - - MODEL NUMBER Q12538B

212

208

26

30

31

25

17

24

29

18

24

25

26

3

11

209

9

15

3

5

5

209

8

3

58

53

12

51

28

54

52

55

57

33

206

26

6

16

3

35

37

10

2

38

3

3

35

38

3

34

26

3

1

13

145

37

208

30

REPAIR P ARTS

CHASSIS

TRACTOR - - MODEL NUMBER Q12538B

KEY PART
NO. NO. DESCRIPTION

1 169831 Chassis
2 169061 Drawbar, Stretch
3 17060612 Screw 3/8-16 x 3/4
4 19131216 Washer 13/32 X 3/4 X 16 Ga.
5 155272 Bumper, Hood/Dash
6 155924X011 Saddle Silkscreen Flt Sdl
8 155138 Clip Retainer Slide-On
9 168347X011 Dash
10 72140608 Bolt, Carriage 3/8-16 x 1
11 155927 Panel Dash LH
12 145660 Clip Tinnerman Grille P.L
13 172107X010 Panel Slkscr Dash RH
14 17490608 Screw Thdrol 3/8-16x1/2 Ty-tt
15 74180512 Screw Mach TRHD 5/16-18uncx3/4
16 73510500 Nut Keps 5/16-18 Unc
17 159639X602 Hood
18 126938X 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 140434 Grille/Lens Asm.
29 140273X599 Lens Grille Private Label
30 169465X602 Fender
31 136619 Bracket Fender Repl 109873x
33 105476X602 Footrest Pnt LH Perf
34 105475X602 Footrest Pnt RH Perf
35 72110606 Bolt Rdhd Sht Sqnk 3/8-16 X3/4
37 17490508 Screw Thdrol 5/16-18 x 1/2 TYT
38 169834 Bracket Asm. Pivot Mower Rear
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
58 150127 Duct Air Engine PL/LT
145 156524 Rod Pivot Chassis/Hood
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 Reflect

--- 5479J Plug Button Blk 359 Dia Choke
NOTE: All component dimensions given in U.S. inches

1 inch = 25.4 mm.

31

REPAIR P ARTS

DRIVE

57

TRACTOR - - MODEL NUMBER Q12538B

51

51

10

13

14

112

77

52

52

21

61

63

8

51

47

50

26

51

72

70

116

55

202

150

48

151
51

12

7

12

18

113

11

204

30

32

170

6

4

3

79

61

32

51

30

52

59

61

42
56

41

42

5

18

6

62

35

40

38

42

39

36

34

66

65

64

27

49

37

145

96

26

24

19

25

2

77

1

75

74

78

76

29

28

22

26

27

36

35

53

32