Piper PA-28-161, Maintenance Manual

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PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 1
Nov 30/06 4K13
73-20-00
CONTROLLING
WARNING: FAILURE TO CONSULT APPLICABLE VENDOR PUBLICATION(S), WHEN SERVICING
OR INSPECTING VENDOR EQUIPMENT INSTALLED IN PIPER AIRCRAFT, MAY
RENDER THE AIRCRAFT UNAIRWORTHY. (SEE INTRODUCTION - SUPPLEMENTARY
PUBLICATIONS.)
1. Carburetor
A. Maintenance
The carburetor requires little attention between overhauls. Check the following items 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 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.
(7) Check the adjustment of the idle mixture and idle speed. (Refer to paragraphs B and C, below.)
B. Idle Mixture Adjustment (Refer to Figure 1.)
(1) After performing the standard engine starting procedure, operate the engine for at least two
minutes between 800 to 1200 RPM to insure proper engine warm-up.
(2) Draw back on the cockpit throttle control lever to obtain a reading of approximately 550 RPM
on the tachometer.
Carburetor
Figure 1