C4, TM 9-2350-230-12
CHAPTER 9
ORGANIZATIONAL MAINTENANCE-POWER PLANT
AND HULL
Section 9-1. POWER PLANT
9-1.
General
to prevent damage to the power plant and/or power plant
compartment. Personnel should be stationed at the
a. This
section
contains
organizational
front, rear, and both sides of the power plant for
maintenance procedures for the removal/installation of
observation of clearances and to assist during the lifting
the power plant, engine mount, and engine mount
operation.
supports.
a. Lift power plant upwards and to the rear to
9-2.
Power Plant Removal Preliminary Prep-
remove from compartment.
Check constantly to
arations
maintain clearance during the lift-ing operations.
NOTE. The power plant removal and installation are
b. Test stands or mounting frames should be used
to be coordinated with a support ing maintenance unit
if available. However, it is possible to set the power plant
only if removal is for replacement of engine or
transmission. Prior to removal or installation, make
contact with the steel engine oil pan and the coolant
certain that all necessary manpower and equipment are
crossover tube.
available.
c. Do not drain or disconnect cooling system hoses
a. It is recommended that four men be assigned to
when removing power plant unless vehicle is equipped
the removal and installation of the power plant.
with a winterization kit.
b. The hoisting equipment used to remove and
9-5.
Operating Power Plant When Removed
install the power plant should have a minimum lifting
From Vehicle
capacity of 3500 pounds, minimum reach of 9 feet, and
a. Operation of the power plant, when re-moved
minimum lift of 10 feet. Hoisting equipment should be
from the vehicle, enables maintenance personnel to
movable or provisions made to move the vehicle as the
inspect the control and drive components by hand-
power plant is being removed.
operating the control link-ages on the transmission
without any injurious effects to the mechanisms.
c. Allow ample room to work on all sides of power
plant after it is removed from vehicle.
b. Special extension fuel input and return hoses,
fittings, and wiring harnesses (fig. 9-10) are supplied to
9-3.
Power Plant Removal Procedure
facilitate operation of the power plant when removed
from vehicle.
Four properly trained men can remove the power plant in
approximately twenty-five minutes.
The removal
CAUTION: If power plant is operated while
procedures are sequenced in progressive order and are
mounted on blocks, watch closely to prevent power plant
coordinated for accomplishment by two, two-man teams.
Team "one" to accomplish all opera-tions from top of
vehicle.
Team "two" to accomplish all operations
9-6.
Performing Stall Test
accessible from the ground.
Power plant removal
Refer to table 8-17, item 64 for stall test procedures.
9-4.
Lifting Power Plant From Vehicle (Fig-
9-7.
Power Plant Installation Preliminary
ure 9-5)
Preparations
NOTE.
Proper positioning of the lifting sling is
a. Preparation of Power Plant Compartment. With
necessary
to
balance
the
power
plant
the
power
plant
out
of
the
9-1