Condenser Removal; Condenser Installation - Piper Navajo Chieftain PA-31-350 Service Manual

NAVAJO CHIEFTAIN SERVICE MANUAL
c. Slide the pulley assembly onto the tapered shaft and secure with washer and self-locking
capscrew. Torque the capscrew to 180 to 240 inch-lbs.
NOTE
If the clutch is not engaged while tightening the capscrew, insert a
spanner wrench into the holes provided in the armature face.
d. Spin the pulley by hand to check for any interference between the field and rotor-pulley
assemblies. A rubbing noise can be heard as the pulley rotates if there is interference. The rotor-pulley
assembly must be removed and the mounting of the field assembly adjusted until the interference is
eliminated.
14-112. CONDENSER.
14-113. CONDENSER REMOVAL. Thecondenserislocatedintherightnacelleaftofthefirewall.
between
stations 121.00 and 136. 75.
a. Remove the access panels on both sides and in front of air scoop.
b. Disconnect the activating rods from the air scoop and remove air scoop assembly panel.
c. With the system completely discharged, disconnect the two lines on the inboard side of the
condenser.
NOTE
Cap the open lines to prevent moisture and dust from
contaminating the system.
d. Remove the screws which hold the condenser to the mounting brackets. (Let the condenser lay in
the nacelle.)
e. Remove the mounting brackets from the longitudinal bulkheads.
f. Remove the condenser from the nacelle. being careful not to bend the fins of the core or damage the
connecting tubes. Cap the lines till reinstalled.
NOTE
Protect the condenser core fins during handling. Insure that the fins are
not bent or crumpled. This would cause a low efficiency of the con-
denser. If fins are bent. comb the fins with an air conditioning comb.
These can be purchased locally at any air conditioning dealer.
14-114.
a.
b.
c.
CONDENSER INSTALLATION.
Place condenser in the right nacelle with the line connections on the inboard side.
Install the mounting brackets to the longitudinal bulkhead with the flanged side up.
Attach the condenser to the mounting brackets.
NOTE
It is advisable to change the receiver-dehydrator whenever the
system has been open to the atmosphere.
Reissued: 9/23/80
4 H11A
ACCESSORIES AND UTILITIES