Section II. CRANE ENGINE SPEED GOVERNOR ASSEMBLY
53.
Crane Engine Speed Governor Assembly
51. General
The crane engine speed governor assembly is a
Cleaning, Inspection, and Repair
centrifugal, flyball-type. With this type of governor, it is
the interaction of the two forces employed that achieves
a. Cleaning. Clean all parts with an approved
the regulation desired. The first is the centrifugal force
cleaning solvent.
developing in the balls inside the governor. This force is
b. Inspection and Repair.
transferred to the carburetor throttle controls, tending to
(1) Inspect all parts for excessive wear and
close the throttle as the speed of the engine increases.
other damage. Replace defective parts.
The second force is exerted by the governor spring and
Replace all gaskets
tends to hold the throttle in wide open position. When
(2) Inspect the ball driver on the governor
these two forces are in balance, the engine is operating
shaft for possible need of replacement. If
at the pre set governor speed.
needed, heat the driver to remove
brazing, and press the driver from the
52.
Crane Engine Speed Governor Assembly
shaft. Press a new driver on the shaft and
secure it by brazing.
Removal and Disassembly
54.
Crane Engine Speed Governor Assembly
a. Removal. Remove the crane engine speed
Reassembly and Installation
governor assembly from the engine (TM 5-3810-207-
20).
a. Reassembly. Reassemble the crane engine
b. Disassembly. Disassemble the crane engine
speed governor assembly in the reverse of the
speed governor assembly in the numerical sequence as
numerical sequence as illustrated on figure 5.
illustrated on figure 5.
b. Installation. Install the crane engine speed
governor assembly on the engine (TM 5-3810207-20).
Section III. CRANE ENGINE FUEL TANK
55. General
plugged. Apply 8 to 5 psi of air pressure
to the tank. Turn leak uppermost and
The crane engine fuel tank is a 50 gallon, steel
repair by welding. Test again for leaks.
constructed tank, mounted on the left side of the cab
underneath the deck plate.
Warning: Be sure tank is
completely filled with water to
56. Crane Engine Fuel Tank Removal
prevent fumes from gathering and
causing an explosion.
a. Drain the crane engine fuel tank (TM 5-8810-
207-10).
(3) Remove the fuel tank cap slowly until the
b. Remove the fuel lines and level gage (TM 5-
air pressure is relieved.
3810-207-20).
(4) Drain the water from the tank.
Dry
c. Remove the crane engine fuel tank from the
thoroughly.
underside of the deck plate as instructed on figure 6.
(5) Replace or repair a defective tank.
57. Crane Engine Fuel Tank Cleaning, Inspection,
58. Crane Engine Fuel Tank Installation
and Repair
a. Cleaning. Clean the fuel tank with live steam.
a. Install the crane engine fuel tank on the
Dry thoroughly.
underside of the deck plate in the reverse of the
b. Inspection and Repair.
instructions on figure 6.
(1) Inspect the fuel tank for rust, small leaks;,
b. Install the fuel lines and level gage (TM5-3810-
cracks, and other damage.
207-20).
(2) To locate leaks, fill the tank with water
c. Fill the crane engine fuel tank (TM 5-3810-207-
with all but one outlet closed or
10).
TAQO 5030A
34
