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Allis Chalmers Models 170, 175 Shop Manual

SHOP MANUAL
ALLIS-CHAMBERS
MODELS 170, 175
Models 170 and 175 tractors are available In single wheel tricycle, dual wheel
tricycle or adjustable front axle version. Model 170 and early 175 are equipped with
either a 226
.
cubic Inch non-diesel or 236 cubic Inch dlesel engine. Late Model 175 Is
equipped with either a 226 cubic inch non-diesel or a 248 cubic inch diesel engine.
INDEX (By Starting Paragraph)
BRAKES
................
165
CARBURETOR
Gasoline .
.
.
.......
• .
..
.
.
80
CLUTCH
Engine Clutch
......
Engine Clutch Shaft ..
"Power Director" Clutch
COOLING SYSTEM
120
124
131
Radiator.
.
......
.
.
.
..
.
.
.
107
WaterPump
.....
.
.. ...
109, 110
DIESEL FUEL SYSTEM
Filters andBleeding .
Injection Pump
......
Nozzles
..........
ELECTRICAL
. 85
. 96
.88
Alternator.
.
.
.
..
...
,
.
.
.
.
.
118
Sl)ark Plugs
........
.....
115
Distributor
.....
.
.. .
.
.
...
116
Starting Motor
....
.. •
...
.
.
119
Voltage Regulator
..........
USA
ENGINE (DIESEL)
Assembly, R&R. .. . . . .
.....
Cam Followers
.
.
..
........
. 26
. 37
. 54
Camshaft
............
Connectin
g
Rods & Bearings
.
Crankshaft & Bearings
..
.
.
Cylinder Head
.
.
.
Fl
yw
heel
......
. 62
. 64
..58
.. 71
.. 41
.. 64
Front Oil Seal
...
Main Bearings ..
OilPan
............
.
.. 73
. 76
... 60
......
56
Oil Pump
........
Piston Pms
.......
Piston & Rod Removal .
Piston & Rings
........
.
....
58
Rear Oil Seal
.........
• .. . . 69
RockerArms ..
..
.
.
.
....
39
S
pe
ed Adjustment .
. . .. . . . 96
TimingGear Cover.
..
. ..
.
41
TimingGear
s
.. ..
.......
45
Valve Guid
es
... .
.. •
....
33
Valve & Valve Seats
..•.. . . 30
Valve Sp
.rings.
.
. .
.. •
. ..
.
35
ENGINE (NON-DIESEL)
Assembly
R&R
.
... .
.
..
.
.
.
..
25
Cam Followers
.. ..
. .
.. .
. ..
.
36
Cam Shaft
.
.
..
.
.. . ..
...
.
.
52
Connecting Rods &Bearings
.....
61
Crankshaft
&
Bearings
.
..
...
..
63
Cylinder Head
.
....
.
.
....
..
27
Cylinder Sleeves
............
57
Fl
yw
heel
...
.
.
..
.
.
.. .
...
. 70
Front Oil Seal
.
.
.
.
.
.
...
...
.40
Governor
.....
..........
105
Ignition Timing
.. . .
.
....
..
.
117
MainBearings
.............
63
OilPan
.................
72
OilPump
................
74
Piston Pms .
...
..
.
.
.....
.
. 59
Piston &
Rod
Removal
.
.
.. ...
.
. 56
Piston
&
Rings
.
....
.
. .
.
...
. 68
Rocker Arms ..
........
... .38
Spark Plugs
..............
116
SpeedAcljustment
..........
105
Timing Gear Cover.
..
.
. . .
....
40
TimingGear
s
..............
42
Valve
Guid
e .. .
.
..
.
.
.
.
32
Valves
&
Valve Seats.
.
. 29
Valve Springs.
.
.
...
..
34
FINAL DRIVE AND DIFFERNTIAL
Bevel Gears, Adjust
..........
148
Bull Gear, Renew
.
.. . ..
.
...
.
156
BullPinion, Renew
.....
156
Differential, Overhaul ...
152
Final
Drive Units, R&R
....
159
Wheel Axle Shafts
....
.
.
.
..
.
156
FRONT SYSTEM
AcljustableAxle
.............
5
Dual W11eel Tricycle
...
.
...
.
...
3
Single Wheel Tricycle
. .
.
..
.
.
.
..
1
GOVERNOR (
NON-DIESEL)
....
105
IGNITION SYSTEM
Distributor
.....
.
....
116
Ignition Timing .
.
... ...
.
117
Spark Plugs ..
......
..
....
115
"POWER-DIRECTOR"
Clutch
.............
.
Pump
.............
.
Shafts and Gears .
.......
POWER LIFf SYSTEM
131
136
134
Checks & Adustments ... • .
175
Control VaJves
.. . . ... . . .
190
Pump
..
......
....
. . .
185
ThreePointLiftSystem ..•
....
191
POWER-TAKEOFF
..........
170
STEERING SYSTEM
..........
11
TRANSMISSION
Bevel Pinion Shaft .
.....
145
Countershaft
.
.
..
.
.. .
.
146
InputShaft .
.....
.
144
Reverse Idler
. ..
.
. ...
. .
.
..
147
Shifter Assembly
...........
141
CONDENSED SERVICE DATA
GENERAL
Gasoline
Engine Make .
....
.....
Own
Cylinders
..........
. .4
Bore-Inches
.........
.4
Stroke-Inches
........
. �
Displacement-Cubic Inches..226
Piston Removed From ... .. Above
Main Bearings, Number of ... 3
Main Bearings Adjustable? .. No
Rod Bearings Adjustable? .
..
No
Cylinder Sleeves
. .
..
. ...
Wet
TUNE UP
Diesel
Perkins
4
3.
875
5
236
Above
5
No
No
D
ry
Firing Order
..........
1 -2-4-3
1-3-4-2
Valve Tappet Gap (Hot)
2
Intake
.....
.
..0.010-0.012 0.010
Exhaust
....
.. . ..
.. 0.014-0.016 0.010
Diesel
Perkins
4
3.
975
5
248
Above
5
No
No
Dry
1-3-4-2
0.010
0.010
TUNE-UP Cont.
Valve Seat & Face
Intake
.............
30
Exhaust
............
45
Ignition Distributor Make ... D-R
Mark Indicating:
Retarding Timing
.......
See
Full Advanced Timing
..
..
Paragraph
Mark Location
.. ...
.
..
117
Breaker
Point
Gap
....
.
.
.0.
022
Spark Plug Gap
.
....
.
.
.
0.025
Injection Pump Make
.
.
. ..
-
Iajection Pump Timing
.. .
Compression Pressure
at Cranking Speed.
Low Idle RPM
.
.
High Idle RPM ..
Full Load RPM. .
.160
. 525
. 2000
.1800
45
45
45
45
CAV
CAV
See Paragraph 98
390-410
600
2000
1800
390-410
600
2000
1800