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SHOP MANUAL
MASSEY -FERGUSON
MO
DEL
S
MF230-MF235-MF240-MF245-MF250
Tractor serial number is stamped on a name plate attached to the side of instrument console. Diesel engine serial number
is stamped on right side of cylinder block near the fuel lift pump. Gasoline engine serial number is stamped
on
a plate
attached to left side of cylinder block above the distributor.
INDEX
(By Starting Paragraph)
BRAKES
Disc Type
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
173
Shoe Type
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
171
C
LU
T
C
H
(Engine)
Adjustment
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
110
Dual Clutch ...
.
.
.
.
.
.
.
.
.
.
.
.
.
.
113
Split Torque Clutch
.
.
.
.
.
.
.
.
.
.
.
116
Tractor Split
.
.
.
.
.
.
.
.
.
.
.
..
.
.
.
.
112
DIFFERENTIAL
Bevel Drive Gears
.
.
.
..
.
..
.
.
.
.
163
Di
fferen
t
ial Lock
.
.
.
.
.
.
.
.
.
.
..
.
160
R&R and Overhaul
.
.
.
.
.
.
.
.
.
.
.
158
ELECTRICAL SYSTEM
Alternator & Regulator
.
.
.
.
.
.
.
101
Starting Motor
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
107
Wiring Diagrams
.
.
.
.
.
.
.
.
.
.
.
.
.
239
ENGINE (Diesel)
Assembly, R&R
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
56
Camshaft
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
71
Connecting Rods & Bearings
.
.
.
.
75
Cooling System
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
82
Crankshaft & Bearings
.
.
.
.
.
.
.
.
.
76
Cylinder Head .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
57
Oil Pump .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
81
Pistons, Sleeves & Rings
.
.
.
.
.
.
.
73
Timing Gears .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
65
ENGINE (Gasoline)
Assembly, R&R
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
25
Camshaft
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
36
Connecting Rods & Bearings
.
.
.
.
40
Cooling System
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
50
Crankshaft & Bearings
.
.
.
.
.
.
.
.
.
41
Cylinder Head
.
.
.
.
.
.
.
.
.
..
.
..
.
. 26
Governor
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
48
Ignition
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
53
Oil Pump
.
.
.
.
..
.
.
.
.
.
.
.
.
.
.
.
.
.
.
44
Pistons, Sleeves & Rings .
.
.
.
.
.
.
38
Timing Gears
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
35
FRONT AXLE
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
1
FUEL SYS
T
E
M
(Diesel)
Bleeding
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 86
Filters
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
85
Injector Nozzles
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
89
Injector Pump
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
97
Timing
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
98
FUEL SYSTEM (Gasoline)
Carburetor
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
46
HYDRAULIC SYSTEM
Adjustments .
.
..
.
.
.
.
.
.
.
.
.
.
.
.
.
194
Auxiliary Pump
.
.
.
.
.
.
.
.
.
.
.
.
.
.
232
Auxiliary Valve
.
.
.
.
.
.
.
.
.
.
.
.
.
.
235
General
.
.
...
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 184
DUAL DIMENSIONS
HYDRAULIC
SYSTEM
Cont.
Lift Cover
.
..
.
..
.
.
.
.
.
.
.
.
.
.
.
.
.
207
Main Hydraulic Pump
.
.
.
.
.
.
.
.
223
Reservoir & Filter
.
.
.
.
...
.
.
.
.
.
185
System Checks .
.
.
.
.
.
.
..
.
.
.
.
.
.
187
Trouble-Shooting
.
.
.
.
.
.
.
.
.
.
.
.
.
186
POWER TAKE-OFF (Independent)
Clutch Unit
.
.
.
.
.
.
.
.
.
.
.
.
.
..
.
.
180
Operation
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
178
Output Shaft
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
179
POWER TAKE-OFF (Live)
Ground Speed Gears
.
.
.
.
.
.
.
.
.
. 176
Output Shaft
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 175
REAR AXLE
With Planetary Final Drive
.
.
.
.
167
Without Planetary Final Drive .165
STEERING SYSTEM
Hydrostatic Type
.
.
.
.
.
.
.
.
.
.
.
.
.
.
18
Manual Type
.
.
.
.
.
.
.
.
.
.
.
..
.
.
.
.
.
3
Power Assist Type
.
.
.
.
.
.
.
.
.
.
.
.
.
.
6
TRANSMISSION
Eight Speed
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
127
Manual Shuttle
.
.
.
.
.
.
.
.
.
.
..
.
. 136
Multi-Power
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
145
Six Speed
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
119
This service manual provides specifications in both Metric
(SI)
and
U.S.
Customary systems of measurement. The first
specification
is
given in the measuring system perceived by us to be the preferred system when servicing a particular
c
o
mp
o
n
e
n
t,
while the second specification (given in parenthesis) is the converted measurement. For instance, a specifica
t
ion of
"0.28
mm
(0.011
inch)" would indicate that we feel the preferred measurement is the metric system of measure
ment and the
U.S.
Customary equivalent of
0.28
mm is
0.011.
2