(1) Clean all hoses, lines, and fittings with an
approved cleaning solvent and dry
thoroughly.
(2) Inspect the hoses, lines, and fittings for
damaged threads, wear, signs of leakage
or other damage.
(3) Replace any damaged or defective
parts.
270. Cab and Components Heater Assembly
a. Removal and Installation. Remove and install
cab heater as instructed on figure 166.
b. Cleaning and Inspection.
(1) Clean the heater and mounting hardware
with an approved cleaning solvent and dry
thoroughly.
(2) Inspect the heater and mounting hardware
for breaks, or other damage.
(3) Inspect heater for proper operation.
(4) Replace or repair mounting hardware as
Figure 165. Carrier engine liquid heater assembly,
necessary.
removal and installation.
(5) Replace a defective or damaged heater.
ware with an approved cleaning solvent
271. Cab Heater Duds and Defrosters
and dry. thoroughly.
(2)
Inspect the heater and mounting hardware
a. Removal and Installation. Remove and install
for breaks, or other damage.
heat ducts and defrosters as instructed on figure 167.
(3)
Inspect the heater for proper operation.
(4)
Replace or repair mounting hardware as
b. Cleaning and Inspection.
necessary.
(1) Clean all parts in an approved cleaning
(5)
Replace a defective heater as necessary.
solvent and dry thoroughly.
(2) Inspect the defroster boxes for bends,
268. Engine Heater Electric Coolant Pump
breaks and other damage. Repair or
replace a defective defroster box as
a. Removal and Installations. Remove and install
necessary.
electric coolant pump as instructed on figure 166.
(3) Inspect all duct work and hardware for
damage. Replace damaged or defective
b. Cleaning and Inspection.
parts as necessary.
(1) Clean the coolant pump and mounting
(4) Replace a damaged or defective heat
hardware with an approved cleaning
control.
solvent and dry thoroughly.
(2) Inspect the pump and mounting hardware
272. Radiator Shutter Assembly
for breaks or other damage.
(3) Replace a defective pump or damaged
a. Removal and Installation. Remove and install
hardware.
carrier radiator shutter assembly as instructed on figure
269. Engine Heater Coolant Lines, Hoses and
Fittings
b. Cleaning and Inspections
(1) Clean the radiator shutter with an
a. Removal and Installation. Remove and install
approved cleaning solution.
engine heater coolant hoses and fittings as shown in
(2) Inspect the radiator shutter for breaks,
bends, and other damage. Repair or
replace damaged radiator shutter and
b. Cleaning and Inspection.
mounting hardware as necessary.
AGO 6819A
181
