Section Ill. GENERAL MAINTENANCE
units), or to TM 5-6115-42-12 (60KW units).
Refer to TM 9-2330-205-14 for the M200A1
generator trailer, and to TM 9-2320-211-10 for
the diesel engine generator sets refer to TM
general maintenance of the M54A2 cargo truck.
6-6115-239-10, or TM 5-6115-247-15 (45KW
Section IV. REMOVAL AND INSTALLATION OF MAJOR COMPONENTS AND AUXILIARIES
5-8. Switchbox (PU-699/M)
5-6. Distribution Box Assembly
a. Disconnect cables from switchbox, and in-
a. Disconnect power cable and ground strap
stall covers on connector-receptacle.
from distribution box.
b. Loosen turnbuckles of holddown assemblies
b. On PU-407/M and PU-699/M trailer units
until hooks can be removed from handles of
remove mounting hardware from under fender
securing distribution box to fender.
c. With adequate lifting device, lift switchbox
c. On PU-408/M and PU-700/M cargo truck
from its mounting base on trailer fender.
remove mounting hardware from under skid plat-
d. Install replacement switchbox in reverse or-
form securing distribution box to skid.
der of removal.
d. Remove support
brace (fig. 1-3(1) from
mounting bracket on side of distribution box.
5-9. Diesel Engine Generator
e. With suitable lifting device, lift distribution
box from trailer fender of PU-407/M or PU-
To remove diesel engine generator unit from the
generator trailer or truck, four men and a device
699/M unit (or from skid platform of PU-408/M
capable of lifting 5,000 pounds are required
a. Removal Front Generator Trailer (PU407/
f. Install replacement distribution box on
trailer or truck in reverse order of removal.
(1) Lower front and rear landing legs and
set trailer handbrakes.
5-7. Synchronizer-Assembly (PU407/M)
a. Loosen turnbuckles of hold-down assemblies
until hooks can be disengaged.
b. Remove cables from synchronizer assembly
distribution boxes, cable reels, fuel cans, fire ex-
and install covers on connection.
tinguishers, and portable accessory boxes from
c. With adequate lifting device, lift syn-
their mounting bracketsi on trailer.
chronizer assembly from its base mounting frame
(3) Remove bolts holding DE generator unit
on trailer fender.
skid base to trailer frame.
d. Install replacement synchronizer assembly
(4) Remove DE generator unit mounting
in reverse order of removal.
support pins from DE generator unit skid base.