TM-9-2910-226-34
PUMP, FUEL, METERING AND DISTRIBUTING, ASSEMBLY
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT, MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS
JUNE 1974
TM-9-2910-226-34 - Page 22 of 208
TM 9-2910-226-34
arrangement. The camshaft also includes gearing for
the distribution function. The fuel injection pump
contains a single-plunger, multioutlet hydraulic
head assembly and is designed to be driven at
crankshaft speed on four-cycle engines.
b.
The purpose of the fuel injection pump is to
deliver accurately metered quantities of fuel under
high pressure to the spray nozzle for injection into
the engine cylinders.
c.
An integral mechanical-centrifugal type
governor controls fuel delivery as a function of
engine speed. It is driven directly from the rear of
the pump camshaft without gearing.
d.
The fuel supply pump is the positive
displacement type. It is gear driven by the metering
and distributing fuel injection pump camshaft. It
provides fuel to the hydraulic head for injection and
cooling, and fuel to the engine flame heater system.
e.
The timing device is the mechanical-centrifugal
type. It is driven clockwise by the engine camshaft
at crankshaft speed.
f.
The fuel density compensator (when used) is
mounted on the governor housing. The fuel density
compensator automatically varies the quantity of
fuel delivered to the engine so that the maximum
power output of the engine remains constant
regardless of the type of fuel being used.
1-6. Injection Pump Housing.
a.
The aluminum
housing is cast with an integral three-hole flange for
mounting the advance unit. It has several drilled
holes that interconnect to form passages for the flow
of lubricating oil supplied to the fuel injection pump
from the engine.
b.
A quill shaft pad cover (F, fig. 1-13) on the
bottom of the housing provides for removal of the
quill shaft assembly during disassembly. A timing
window in the upper part of the housing covers the
marked plunger gear, which is used for timing
during assembly and disassembly. A timing pointer
(D, fig. 1-14) at front of fuel injection pump, alines
with a mark on timing device hub (C, fig. 1-14) to
show port closing position.
F
A
B
C
D
E
G
H
J
K
L
M
N
A
B
C
D
E
G
H
K
L
M
N
KEY to fig. 1-13
Typical Injection Pump
Code 13, C, D, E, F, G
Overflow valve assembly
Fuel control unit assembly
Fuel control rod
Fuel shutoff rod assembly
Timing window cover solenoid shutoff assembly.
Quill shaft pad cover
Camshaft driven gear
Shaft spacer
Quill shaft retaining screw
Quill shaft bushing
Quill shaft
Plunger sleeve pin
Plunger sleeve
Injection Pump
Code A
Overflow valve assembly
Fuel control unit assembly
Fuel control rod
Fuel shutoff solenoid
Timing window cover solenoid shutoff assembly.
Quill shaft pad cover
Camshaft driven gear
Shaft spacer
Quill shaft retaining screw
Quill shaft bushing
Quill shaft assembly
Plunger sleeve pin
Plunger sleeve
F
J
1-14
Back to Top
