4-17.
OPTIONAL HEATER OPERATION (cont)
Stewart-Warner combustion cabin heater (optional, see Table 9-3).
WARN ING
LIMIT HEATER GROUND OP ER A TION TO FIVE
MIN UTES WITH THE ENGINE RUNNING TO
PRE VENT IN GES TION OF ENGINE AND EX -
HAUST FUMES INTO AIR CRAFT CABIN
(PARA GRAPH 2-2).
Steps 1. through 8. ap ply to ground op er a tion of the heater with the
en gine not run ning.
1. Set fuel shut off valve to OPEN po si tion.
2. Set mix ture con trol in IDLE CUT OFF po si tion.
3. Set fuel boost pump switch in ON po si tion.
4. Set heater con trol switch in PRIME po si tion (2 sec onds).
5. Set heater con trol switch in HEAT po si tion.
6. Po si tion push-pull con trol to reg u late cabin tem per a ture.
7. Set heater con trol switch to OFF po si tion to dis con tinue heater
op er a tion.
8. Set fuel shut off valve to CLOSED po si tion.
Steps 1. through 4. ap ply to in-flight op er a tion of the heater.
1. Set heater con trol switch in PRIME po si tion (2 sec onds).
2. Set heater con trol switch in HEAT po si tion.
3. Po si tion push-pull con trol to reg u late cabin tem per a ture.
4. Set heater con trol switch to OFF po si tion to dis con tinue heater
op er a tion.
Normal Procedures
Pilot's Flight Manual
Reissued:
16 Jan 2019
4-25
This Document contains technical data subject to EAR. See WARNING and classifications on first page.
SCHWEIZER
Model 269C Helicopter
FAA Approved
CSP Book 1 CSP-C-1.indd 113
8/4/19 12:45 PM
