74. Crane Engine Distributor Assembly Reassembly
Crane Engine Distributor Assembly Cleaning,
Inspection, and Repair
a. Cleaning. Clean all parts with a dry, lint free
a. Reassembly. Reassemble the distributor in the
reverse of the numerical sequence as illustrated on
cloth and compressed air.
b. Inspection and Repair. Inspect all parts for
b. Installation. Install the distributor (TM 5-3810-
excessive wear or damage. Replace or repair all
Section VIII. CRANE ENGINE RADIATOR ASSEMBLY
air or water under pressure from the fan side of the core.
c. Clean the overflow line with compressed air.
d. Plug all openings in the radiator.
The crane engine radiator assembly is a one piece core
e. Insert air hose in radiator outlet pipe and caulk
unit mounted on the front engine support. Coolant is
circulated from the coolant pump to the radiator where it
around the hose.
is cooled, and then recirculated through the coolant
f. Immerse the radiator in water and apply 5 psi air
pressure to the radiator.
76. Crane Engine Radiator Assembly Removal
g. Watch for signs of air bubbles.
a. Drain the radiator (TM 5-3810-207-10).
h. Remove the radiator from the water and
b. Remove the oil cooler (TM 5-3810-207-20).
disconnect air hose.
i. Replace or repair a damaged or defective
c. Disconnect radiator hoses (TM 5-3810-207-20).
d. Remove fan guard and shroud (TM 5-3810-207-
78. Crane Engine Radiator Assembly Installation
. Remove the radiator
on figure 11.
77. Crane Engine Radiator Assembly Cleaning,
a. Install the radiator
on figure 11.
Inspection and Repair
b. Install fan guard and shroud (TM 5-3810-207-
a. Flush the inside of the radiator with an approved
cleaning solvent. Avoid high pressure so as not to
c. Connect the radiator hoses (TM 5-3810-207-20).
damage the radiator core.
d. Install the oil cooler (TM 5-3810-207-20).
b. Clean the radiator core with compressed
e. Fill the radiator (TM 5-3810-207-10)
Section IX. CRANE ENGINE WATER PUMP ASSEMBLY
lower engine block to complete the cooling water cycle.
80. Crane Engine Water Pump Assembly Removal
The crane engine water pump assembly is an
impeller-type pump. The pump, which is belt-driven
from the crankshaft, incorporates a carbon-type shaft
seal with a spring-loaded bellows for proper tension.
a. Removal. Remove the water pump (TM 5-
The total pump output of hot water from the engine
block is circulated through the radiator and then returned
b. Disassembly. Disassemble the water pump in
numerical sequence as illustrated on figure12