TM 06858B 06859D-34
REMOVAL AND INSTALLATION OF MAJOR COMPONENTS
(c) Remove front housing. doors and top
a. The engine and generator are rigidly bolted
(d) Disconnect fuel lines to fuel strainer.
together at the engine flywheel housing. This assem-
filter assembly, secondary fuel filter, and remove
bly is mounted on the skid base at three points. the
front engine trunnion and the two generator feet. Ro-
tation and cooling of the generator is accomplished
(e) Drain hydraulic sump and disconnect
by a blower and coupling disc assembly which is
hydraulic lines to hydraulic pump assembly (precise
bolted to the engine flywheel. This arrangement al-
generator sets only).
lows the engine and generator to be removed as an
assembly or independently of each other.
(f) Tag and disconnect electrical leads to
engine accessories and remove any clamps securing'
b. To remove the engine. it is first necessary
leads to engtine.
to remove the radiator and shell assembly and dis-
assemble the front housing assembly. rear housing
(g) Remove air cleaner assembly and
assembly. and relay table (including relay table
components, see Section HI, Chapter 5). Engine
accessories may either be removed or remain on
(h) Disconnect starting aid tube assembly
the engine during removal.
from engine intake manifold.
c. To remove the generator. remove the rear
(i) If winterization kits are installed, tag
housing assembly with cooling grille as a single unit.
and disconnect electrical leads to engine sensors and
The relay table with the two side brackets can be
disconnect coolant lines from engine oil pan.
removed as a unit by removing four bolts at base of
side brackets and disconnecting wiring harness.
Prior to loosening the bolts \vhich couple the genera-
tor housing to the engine flywheel housing. the
engine supporting bracket must be installed between
Do not use a lifting device of less than
the engine rear lifting bracket and the center support
1000 lb. capacity.
d. In rare cases, it may be beneficial to remove
(2) Attach a suitable lifting device to engine
the engine and generator as an assembly. To accom-
plish this, the housing assembly must be disassem-
bled completely (a combination of the disassembly of
(3) Disconnect enqine crankcase oil drain tube
sub-paragaphs b. and c. above) and the center sup-
from fitting in skid base.
port assembly removed. The lifting mechanism must
be so arranged as to support both the engine and the
generator to avoid undue stress on the engine-
(2). and access cover (3).
ENGINE ASSEMBLY REMOVAL AND IN-
(5) Remove scre\vs (4), lochwashers (5) and
air inlet screen (6).
lockplate (9) and pressure plate (10).
(1) Refer to the operator and organizational
maintenance manual and accomplish the following.
(a) Drain engine lubricating and cooling
Take slack from hoisting sling prior to
loosening generator and engine coupling
To avoid short circuits which could dam-
age equipment or injure personnel, always
disconnect negative battery cable before
performing maintenance on the electrical
(7) Remove screws (11) and lockwasher (12).
(h) Remove radiator. radiator hoses,
shell assembly, and shutter assembly.