Carburetor Maintenance - Piper PA-44-180 SEMINOLE Maintenance Manual

DISTRIBUTION.

CARBURETOR MAINTENANCE.

For any information on the carburetor ice detector refer to Chapter 71.
In general, little attention is required between carburetor overhauls. However, it is recommended that the
following items be checked during recommended inspection periods of the engine.
1. Check tightness and safety of all nuts and screws which fasten the carburetor to the engine.
2. Check all fuel lines for tightness and evidence of leakage.
3. Check throttle and mixture control rods and levers for travel, tightness and safety.
4. Clean the fuel inlet screen. (Refer to Figure 73-1.)
5. Remove the plug at the aft position of the carburetor and drain any accumulation of foreign matter.
6. Check carburetor air box for wear and full travel of heat door.
GROUND RUNNING WITH THE COWLING REMOVED: MAXIMUM
POWER GROUND RUNNING IS LIMITED TO TWO (V MINUTES OR
CYLINDER HEAD TEMPERATURE OF 475°F, WHICHEVER IS REACHED
FIRST. AIRCRAFT WITHOUT CYLINDER HEAD TEMPERATURE GAUGE
MUST NOT BE OPERATED AT MAXIMUM POWER WITH COWLING
REMOVED. PROLONGED GROUND RUNNING WITH THE COWLING
REMOVED COULD CAUSE LOCAL HOT SPOTS IN THE CYLINDERS AND
IRREVERSIBLE ENGINE DAMAGE.
A570
MIXTURE ADJUSTMENT
PIPER AIRCRAFT
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
— Note —
— CAUTION —
FUEL PRESSURE CONNECTION
Figure 73-1. Carburetor
3F3
FUEL INLET
IDLE SPEED ADJUSTMENT
THROTTLE ARM
Revised: May 15, 1989
7 3 - 11 - 0 0
Page 73-01