(6) Check that the exhaust does not smoke and check heater for erratic operation.
If heater smokes or
operates erratically, adjust the carburetor.
needle (1) on carburetor 1/8 turn clockwise to
reduce fuel flow.
If smoking persists, turn fuel needle an
additional 1/8 turn clockwise. Allow to run for
one minute and observe heater operation.
Continue to turn fuel needle 1/8 turn clockwise
until heater performs satisfactorily.
heater is burning smoothly, there should be
little or no smoke from the exhaust.
If heater operates erratically or improperly, turn
fuel needle (1) 1/8 turn counterclockwise to
increase fuel flow. Allow to run for one minute
and observe heater operation. If necessary,
continue to turn fuel needle 1/8 turn
Figure 4-3. Adjusting Carburetor.
SECTION II. UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
This section lists the preventive checks and services to be performed quarterly by Unit Maintenance personnel. Refer to