SECTION 4
CESSNA
NORMAL PROCEDURES
MODEL 172S NAV III
STARTING ENGINE (With External Power)
1. Throttle Control - OPEN 1/4 INCH
2. Mixture Control - IDLE CUTOFF (pull full out)
3. STBY BATT Switch:
a. TEST - (Hold for 20 seconds, verify green TEST lamp
does not go off)
b. ARM - (Verify that PFD comes on)
4. Engine Indication System - CHECK PARAMETERS (Verify
no red X's through ENGINE page indicators)
5. BUS E Volts - CHECK (Verify 24 VOLTS minimum shown)
6. M BUS Volts - CHECK (Verify 1.5 VOLTS or less shown)
7. BATT S Amps - CHECK (Verify discharge shown (negative))
8. STBY BATT Annunciator - CHECK (Verify annunciator is
shown)
9. AVIONICS Switch (BUS 1 and BUS 2) - OFF
10. MASTER Switch (ALT and BAT) - OFF
11. Propeller Area - CLEAR (Verify that all people and
equipment are at a safe distance from the propeller)
12. External Power - CONNECT to ground power receptacle
13. MASTER Switch (ALT and BAT) - ON
14. BEACON Light Switch - ON
15. M BUS VOLTS - CHECK (Verify that approximately 28
VOLTS is shown)
NOTE
If engine is warm, omit priming procedure steps 16
thru 18 below.
16. FUEL PUMP Switch - ON
17. Mixture Control - SET to FULL RICH (full forward) until
stable fuel flow is indicated (approximately 3 to 5 seconds),
then set to IDLE CUTOFF (full aft) position.
18. FUEL PUMP Switch - OFF
19. MAGNETOS Switch - START (release when engine starts)
(Continued Next Page)
4-14 U.S.
172SPHAUS-03