INDEX
Reading edition
APage No.
Air cleaner, 122
Allocation of maintenance by echelons, 40
Ammunition box carrier, 169
Armature bearing special lubrication, 145
Auxiliary brake, 12
B
Battery, lighting system, horn
battery
check electrolyte level, 181
installation, 185
removal, 181
description, 181
horn
adjustment, 190
description, 190
ignition and light switch
installation, 188
removal, 188
service headlights
adjustment, 185
blackout, 186
marker, 187
taillights
blackout stop and taillight, 187
service stop and taillight, 187
wiring
cable system, 190
removal and installation, 190
Brake system
brake shoe installation, 151
brake shoe removal, 150
front wheel brake, 151
rear wheel brake
adjustment, 149
linkage, 149
C
Carburetor
adjustment, 116
bowl cleaning, 120
installation, 118
removal, 118
Chains and sprockets
chain oilers, 109
chain repair tool, 113
countershaft sprocket replacement, 114
engine sprocket replacement, 113
front chain adjustment, 105
front chain replacement, 111
rear chain adjustment, 107
rear chain replacement, 111
rear wheel alinement, 107
Clutch
control adjustment, 85
description, 86
disk and spring inspection, 91
disk installation, 93
disk removal, 90
maintenance and adjustment, 86
release bearing
installation, 95
removal, 95
spring tension adjustment, 89
Controls and operation
controls
auxiliary brake (front wheel), 12
carburetor choke, 13
clutch, 10
foot starter crank, 12
gasoline valve, 9
gear shifter, 12
ignition and light switch, 12
instrument panel signal lights, 13
service brake (rear wheel), 12
spark, 10
steering damper, 12
throttle, 10
driving precautions
avoid low gear operation, 17
braking, 17
high‐speed tips, 17
engine prestarting instructions, 13
operation of vehicle
starting on level ground, 16
starting on uneven or soft ground, 16
running‐in new engine (or vehicle), 19
starting engine
behavior of instrument panel signal lights, 15
cold engine, 14
engine with dead battery, 15
hot engine, 15
warm engine, 14
stopping and parking vehicle
parking vehicle, 18
stopping vehicle, 17
stopping the engine, 16
towing vehicle to start engine
engine starting with dead battery, 18
D
Data, tabulated
engine, 72
vehicle specifications, 7
capacities, 8
performance, 7
Description
battery, lighting system, horn, 181
clutch, 86
engine, 72
generating system, 142
ignition system, 129
intake and exhaust system, 122
tires, wheels and hubs, 193
transmission, 96
Description of vehicle, 7
E
Echelon system of maintenance allocation, 40
Engine
carbon removal, 74
data, 72
description, 72
head, gasket replacement
installation, 74
removal, 73
installation, 82
oil feed pump replacement, 77
removal, 78
tune‐up, 72
valve tappet adjustment, 74
Exhaust system, 126
F
First echelon preventive maintenance services
after‐operation and weekly service, 25
at‐halt service, 24
before‐operation service, 21
during‐operation service, 23
purpose, 20
Fuel system
carburetor
installation, 118
removal, 118
carburetor adjustment
complete readjustment of carburetor, 116
low speed adjusting needle, 116
carburetor bowl cleaning, 120
fuel pipe
installation, 121
removal, 121
fuel strainer
cleaning, 120
install strainer assembly, 120
remove strainer assembly, 120
general, 115
throttle control wire adjustment
closed throttle, 118
open throttle, 118
G
Generating system
armature bearing special lubrication, 145
commutator cleaning, 143
cut‐out relay, 147
description, 142
generator installation, 147
generator removal, 145
Generator removal and installation, 145, 147
H
Horn, 190
I
Ignition system
circuit breaker and timer assembly installation, 133
recommended recheck of ignition timing, 135
removal, 133
circuit breaker points
adjustable contact point installation, 131
adjustable contact point removal, 131
adjustment, 131
breaker lever installation, 131
breaker lever removal, 130
coil to timer wire
installation, 138
removal, 138
condenser
installation, 133
removal, 131
description, 129
spark coil
installation, 140
removal, 139
spark control adjustment, 139
spark plugs
cleaning, 129
point adjustment, 129
replacement, 129
type, 129
Installation procedure
air cleaner, 126
ammunition box carrier, 169
battery, 185
battery box, 173
carburetor, 118
circuit breaker and timer assembly, 133
circuit breaker lever, 131
circuit breaker points, 131
clutch release bearing, 95
coil to timer wire, 138
condenser, 133
control wire housings, 166
engine, 82
engine head gasket, 74
exhaust pipe, 127
foot starter, 98
fork assembly, 158
front wheel, 196
fuel pipe, 121
fuel strainer assembly, 120
fuel tank, 175
generator, 147
handle bar assembly, 163
ignition and light switch, 188
instrument panel cover, 191
jiffy stand, 177
luggage carrier, 170
mudguards, 171
muffler assembly, 127
oil tank, 176
outer front chain guard, 167
rear chain guard, 169
rear stand, 176
rear wheel, 199
saddle post, 178
safety guards, 178
scabbard carrier, 169
skid plates, 180
spark coil, 140
spark control wire, 166
speedometer, 192
spring forks, 154
starter crank springs, 101
steering damper, 161
throttle control wire, 165
tires, 195
tool box and bracket assembly, 173
upper bumper springs, 155
upper coil springs, 155
wiring, 190
Instrument panel
indicator lights, 191
panel cover
installation, 191
removal, 191
speedometer
installation, 192
removal, 192
Intake and exhaust system
air cleaner
general, 122
installation, 126
maintenance, 123
removal, 125
service, 122
air cleaner mounting bracket replacement, 126
description
exhaust, 122
intake, 122
exhaust system
muffler assembly installation, 127
muffler assembly removal, 126
pipe installation, 127
hose and carburetor fitting
installation, 125
removal, 125
Introduction
scope of manual, 3
supersession of quartermaster manuals, 3
L
Lighting system, 181
Lubrication
introduction, 30
lubrication guide, 30
general, 30
lubrication notes, 30
oilcan points, 34
supplies, 30
warning light, 34
M
Maintenance allocation
allocation of maintenance by echelons
clutch, 40
controls and linkage, 40
electrical group, 41
engine (V‐45″ twin engine), 41
exhaust group, 42
miscellaneous, 42
suspension (front), 43
suspension (rear), 43
tires, 44
transmission, 44
vehicle assembly, 44
scope of maintenance, 39
Manual, scope of, 3
O
Organization tools and equipment, 60
P
Preventive maintenance services
first echelon, 20
second echelon, 45
R
References
explanatory publications
automotive materiel, 200
list of publications for training, 200
maintenance and repair, 200
protection of materiel, 200
storage and shipment, 200
standard nomenclature lists, 200
Removal procedure
air cleaner, 125
ammunition box carrier, 169
battery, 181
battery box, 172
carbon, 74
carburetor, 118
circuit breaker and timer assembly, 133
circuit breaker lever, 130
condenser, 131
control wire housings, 166
engine, 78
engine head gasket, 73
foot starter, 98
fork assembly, 155
front wheel, 195
fuel pipe, 121
fuel strainer assembly, 120
fuel tank, 174
generator, 145
handle bar assembly, 162
ignition coil to timer wire, 138
instrument panel cover, 191
jiffy stand, 176
luggage carrier, 170
mudguards, 170, 171
muffler assembly, 126
oil tank, 175
outer front chain guard, 167
rear chain guard, 169
rear stand, 176
rear wheel, 198
release bearing (clutch), 95
saddle post, 178
safety guards, 178
scabbard carrier, 169
skid plates, 180
spark coil, 139
spark control wire, 166
speedometer, 192
spring forks, 154
starter crank spring, 98
steering damper, 161
throttle control wire, 164
tires, 193
tool box and bracket assembly, 173
upper bumper springs, 155
upper coil springs, 155
Road test chart of maintenance operations, 49
S
Second echelon preventive maintenance
road test chart, 47
maintenance operation, 49
services
first echelon participation, 45
frequency, 45
general procedures, 45
specific procedures, 47
Sheet metal and equipment
battery box
installation, 173
removal, 172
carriers
ammunition box carrier installation, 169
ammunition box carrier removal, 169
fuel tank
installation, 175
removal, 174
chain guards
outer front chain guard installation, 167
outer front chain guard removal, 167
rear chain guard installation, 169
rear chain guard removal, 169
jiffy stand
installation, 177
removal, 176
luggage carrier
installation, 170
removal, 170
mudguard (front)
installation, 171
removal, 170
mudguard (rear)
installation, 171
removal, 171
oil tank
installation, 176
removal, 175
rear stand
installation, 176
removal, 176
saddle post
description, 178
installation, 178
removal, 178
safety guards
installation, 178
removal, 178
scabbard carrier
installation, 169
removal, 169
skid plates
installation, 180
removal, 180
tanks
fuel tank, 173
general, 173
oil tank, 173
tool box
box and bracket assembly installation, 173
box and bracket assembly removal, 173
Spark plugs, 129
Speedometer
installation, 192
removal, 192
Steering control
control wire housings
installation, 166
removal, 166
fork assembly (complete)
installation, 158
removal, 155
rocker plate studs, 160
forks (springs)
installation, 154
removal, 154
handle bar controls
install throttle control wire, 165
remove throttle control wire, 164
handle bars
installation of assembly, 163
removal of assembly, 162
spark control wire
installation, 166
removal, 166
steering damper
installation, 161
removal, 161
upper coil springs and upper bumper springs
installation, 155
removal, 155
Stowage on vehicle (tools and equipment), 35
T
Tabulated data
engine, 72
vehicle specifications, 7
capacities, 8
performance, 7
Tires, wheels, and hubs
description, 193
front wheel
hub adjustment, 197
installation, 196
removal, 195
rear wheel
installation, 199
removal, 198
rims and spokes, 195
tires
description, 193
installation, 195
removal, 193
Tools and equipment stowage on the vehicle
vehicle equipment, 36
vehicle spare parts, 38
vehicle tools, 35
Transmission
control linkage
adjustment, 97
checking gear shifter control linkage, 96
transmission shifted to adjust front drive chain, 96
description, 96
foot starter
installation, 98
removal, 98
installation, 101
removal, 99
starter crank springs
installation, 98
removal, 98
Trouble shooting
brakes, 70
electrical system, 68
engine
instruction, 61
tests to determine mechanical condition, 63
engine lubricating system, 64
fuel system, 65
generating system, 68
ignition system, 66
introduction, 61
steering, 71
transmission and clutch, 69
wheels and chains, 69
W
Wheels and hubs, 195
Wiring, 190
[A.G. 300.7 (17 Aug. 1943)]
By order of the Secretary of War: G. C. MARSHALL, Chief of Staff.
Official: J. A. ULIO, Major General, The Adjutant General.
Distribution: R9 (4): IR 5, 7 and 17 (5): Bn 9 (2): IBn 5, 6, 7 and 17 (5): C9 (8): IC 5, 6, 7 and 17 (5)
(For explanation of symbols, see FM 21–6)
RAPD3OEC43–81M
PUBLICATIONS DEPARTMENT ‐ RARITAN ARSENAL