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Allis Chalmers Models D-10, D-10 Series III, D-12, D-12 Series III Shop Manual

SHOP MANUAL
ALLIS-CHALMERS
MODELS D-10, D-10 Series Ill, D-12 AND D-12 Series Ill
The tractor serial number is stamped on the left front of the torque tube.
The engine serial number is
stamped on the rear left side of the engine block.
All models are available in both standard or high clearance design. All types use adiustable front axles.
D-10 tractors have narrower tread than D-12 tractors.
IMPORTANT
At t
r
actor Serial Numbers Dl0-3501 and D12-3001, numerous changes
were made in D-10 and D-12 tractors. D-10 Series Ill and D-12 Series Ill
tractors, beginning at tractor serial number Dl0-'9001 and D12-9001, also
incorporate numerous additional changes. Where service procedure or
s
pec
i
f
i
cations are affected, changes are noted in the text of this manual
by serial number range. Check serial
-
number of tractor prior to reference
to manual.
INDEX (By Starting Paragraph)
Prior to Serial
Tractor Serial
Prior to Serial
Tractor Serial
Hoa. Dl0..3501
Hos. Dl0..3501 & Up,
Hos. Dl0..3501
Hos. Dl0..3501 & Up,
& Dl2-3001
Dl2-3001 & Up
& Dl2-3001
Dl2-3001 & Up
BELT PULLEY
BRAD:S
87
87B
Valve
Guides
. . .. .. . ... .. ..
18
Valve Springs
.....
.......
.
19
Valve Timing ..
......
......
23
18
19
23
Adju
a
tment
...........
.
... .
Drums R&R
...........
.
....
Reline
...............
..
....
CARBURETOR
.........
'
.
.
...
.
CLUTCH
Engine Clutch ..••
.....
.
....
Engine Clutch Shaft ...
.
....
COOLING SYSTEM
Pump
...............
..
....
Rad1ator
................
.. .
DIFFERENTIAL
..........
.
...
.
ELECTRICAL SYSTEM
Generator, Regulator
.......
Starting Motor
........
.
....
ENGINE
Assembly R&R
............
.
Cam Followe
r
s ...•
.......
•.
Camshaft
..................
Connecting Roda & Bearings ..
Crankshaft and Bearings
....
Cylinder Head
.............
Cylinder Sleeves
...........
Flywheel
..................
Fly
wheel Timing Marks
....
.
Front OU Seal
..............
Ignition Timing
.............
Main Bearings
.............
OU Pan
...................
OU Pump
..................
Piston and Rod Removal.
....
Piston Pins
................
Pistons and Rings
........
..
Rear Oil Seal
..............
Rocker Arms
...............
Tappets ..••••.•..•..•••••.
Timing Gears
..............
Thnlng Gear Cover
........
.
Valves and Valve Seats
....
2
85
86A
86
39
62
65
58
57
79
soc
60D
15
20
26
30
31
16
28
34
35
32
60B
31
36
37
27
29
28
33
21
20
23
22
17
85
86A
86
39A
62
65
58
57
79
61B
61C
15
20
26
30
31
16
28
34
35
32
61A
31
36
37
27
29
28
33
21
20
23
22
17
FINAL DRIVE
Bevel Gears. Adjuat
....
•.. .
78
Bull Gear. Renew ,
.....
....
81
Bull Pinion Bearings, Adjuat..
82
Bull Pinion, Renew
....
.....
84
Differential ..•
.......
•••...
79
Wheel Axle Sha1ts, Renew..
.
·
81
FRONT SYSTEM AND
STEERING
Adjuatable Axle
......
.....
1
Heavy Duty
.
Front
Axle. . ... .
3
Manual Steering System
....
4
Power Steering System
.....
GOVERNOR
Adjuatment
.. . ... .. .. ..
....
55
Overhaul
....
.....
.....
. . ..
56
IGNITION SYSTEM
Battery Ignition Tlmlng
......
Distributor
................
.
POWER LlFT SYSTEM
Pump Overhaul (Plunger Type)
Gear Type (Camshaft Driven)
Gear Type (Pto Driven)
....
Pump R&R (Plunger Type) .••
Gear Type (Camshaft Driven)
Gear Type (Pto Driven).. .
Valves (Plunger Pump)
......
Gear Type (Camshaft Driven)
Gear Type (Pto Driven) ... .
Work Cylinders
............
POWER TAKE-OFF
.........
.
RANGE TRANSMISSION
.....
.
STEERING GEAR .••••
....
•..•
TRANSMISSION (MAIN)
60B
60A
90
94
89
93
89
96
97
87
4
78
81
82
8
4
79
81
l
3
4
10
55
56
61A
61
106
105
109
115
87B
66
4
Bevel Pinion Shaft
......
•.•.
75
75
Main Shaft • .
....
....
. . . . .
74
74A
Reverse Idler •
.............
77
77
Shifter
Assembly
... .. .. .. ..
73
73
"lndlcatea feature not available within Serial Number range.