g. Cooling System. Any signs of overheating may
electrical insulation in high humidity or salt water areas
requires constant exercise of preventive measures.
indicate sand or dust has clogged the system passages.
Although the wiring on the crane and the carrier has
Flush the system with clean water. Clean radiator cases
been specially treated to resist fungus and rot, frequent
and fins of foreign matter with compressed air.
inspections are necessary to find worn spots in the
insulation which, unless repaired, would allow short-
NOTE
circuit conditions to develop.
If it is necessary to use air pressure to clean obstructions
b. Protection from Rust and Corrosion. Rust and
from the lines, use a reverse flow of air to flush the
system. Too much air pressure will rupture the flues in
corrosive conditions at any point on the unit must be
the radiator.
corrected immediately. Clean all rust and paint the bare
surfaces. Place a light film of lubricant on polished or
h. Air Cleaners. Check the air cleaner more often than
machined metal surfaces.
under normal conditions.
2-23. Operation at High Altitudes
The crane-shovel will operate satisfactorily at high
2-22. Operation in High Humidity and Salt Water
altitudes without special attention.
Areas
a General Prevention of rust and deterioration of
Section VI. OPERATION OF AUXILIARY MATERIEL USED IN CONJUNCTION WITH
THE CRANE AND CARRIER
a pressurized cylinder valve assembly, manifold and
2-24. General This section covers the description and
fittings, and control cable assembly. The quick-start
operation of auxiliary equipment supplied for use with the
control is located in the operator's cab of the crane
carrier and crane but not necessary for the basic
carrier, and is mounted on the right side of the cab near
functioning of the carrier and crane.
the operator's seat.
b. Operation. The quick-start is operated by placing
2-25. Carrier Cab Personnel Heater
a fuel cylinder, on the valve assembly head. With the
a. General The carrier cab is equipped with a heating
fuel cylinder in position, pull control lever (3, fig.2-14) up
system that provides heat for the interior of the operator's
for 1 or 2 seconds filling chamber in the valve body.
cab. The heater is the circulating hot water type and is
Push down on control, releasing shot into manifold. Wait
mounted beside the operator's seat.
3 seconds and engage starter. Release second shot
b. Operation. To operate the personnel heater, place
while engine is turning. When started and engine falters
the heater switch (40, fig. 2-14) in the ON position. Make
or is dying out, give extra shots to keep engine running.
sure shut-off cock on engine is open so coolant can
c. Maintenance. Check cylinder (Full cylinder
circulate.
weight 37 ounces, empty cylinder weight 17 ounces).
Check all connections and mounting for tightness. Clean
2-26. Crane Cab Personnel Heater
filter screen at 1/8-inch pipe threat opening and orifices
periodically.
a. Description. The crane cab is equipped with a
heating system that provides heat for the interior of the
2-28. Crane Quick-Start System
operator's cab. The heater is the circulating hot water
type and is mounted on the cab floor behind the
a. Description. The quick-start system consists of a
operator's seat.
pressurized cylinder, valve assembly, tube and fittings,
b. Operation. To operate the personnel heater, place
release lever, and control cable. It is located in the left
the heater switch (fig. 2-20) in the ON position. Make
rear corner of the crane cab above the battery box.
sure shut-off cock on engine is open.
b. Operation. To operate the quick-start system
2-27. Carrier Quick-Start System
assembly, pull out the control knob and push in as
a. Description. The quick-start system consists of
directed in paragraph 2-27b.
2-46
