Section XXIX. CARRIER WINTERIZATION EQUIPMENT
262. General
The gas-fired liquid heater (A, fig. 16) mounted to
the front crossmember just in front of the right front
wheel, is used as a cold-weather engine starting aid by
use of an electric powered circulating pump, heats and
circulates the engine coolant throughout the engine
cooling system and the jacket on the oil pan. The gas-
fired fresh air heater, mounted to the rear of the carrier
engine housing heats the operator's cab, battery box
and window defrosters. A fuel pump, lines, filter and
fittings furnish fuel for the heater assemblies. A radiator
shutter is supplied and is also used as a cold-weather
engine starting aid.
263. Heater Fuel Pump Filter Element Service
Service both heater fuel pump filter elements as
instructed in figure 162.
264. Heater Fuel Pump Screen Service
Service both heater fuel pump screens as in tructed
s
in figure 162.
Figure 162. Carrier heater fuel pump screen and
fuel pump filter service.
265. Heater Fuel Pump and Filter
heater are identical and maintenance
a. Removal and Installation. Remove and install
instructions are the same for both units.
the fuel pump and filters as instructed on figure 166.
(2) Remove the two screws (1 figure 163) on
each side of the name plate (3) and
b. Cleaning and Inspection.
separate the box assembly (4) from the
(1) Clean all parts with an approved
control box panel (24).
Inspect the
cleaning solvent and dry thoroughly.
assembly Visually for wiring defects and
(2) Inspect all mounting hardware for
faulty parts. Check the circuits, using the
damage. Replace damaged mounting
wiring diagram (fig. 164). Replace any
hardware as necessary.
units
that
are
obviously
faulty.
(3) Inspect the fuel pumps and filters for
Disassemble and test the control box
breaks, leaks, and other damage.
components as follows.
Replace fuel pumps and filters as
necessary.
b. Circuit Breaker.
(4) Inspect the fuel pump for proper
(1) To remove the circuit breaker (12, fig.
operation.
Replace a defective fuel
163) disconnect the electrical leads from
pump.
the terminals. Tag leads to facilitate
reassembly. Remove the two mounting
266. Heater Control Boxes
screws (2) from the panel and remove the
circuit breaker.
a. General.
(2) To test, connect the circuit breaker to a
(1) The control boxes for both the engine
test circuit which will supply 200 percent
liquid heater and the cab fresh air
rated current. Press in the
AGO 6819A
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