PIPER CHEROKEE
SIX SERVICE MANUAL
13-23.
ADJUSTMENT OF DRIVE BELT
TENSION. The adjustment of the
compressor
and/or
alternator drive belts is very important
to obtain long belt life and proper
component
operation.
a. Adjust
new compressor belt to 120 pounds
span tension and new alternator belt
to
90-100 pounds
span tension. If
a plastic-type alternator
belt (Gates
P/N 8075-1191)
is
installed, adjust
the tension to 65-70 lbs. for a new
belt. Use a calibrated belt tension gauge.
NOTE
The
higher tension specified
for a new belt is to compensate
for the initial stretch that takes place as soon as it is operated.
These higher
tension values should
not be applied to belts
which previously
have been used. See
Tensions noted below
for used belts.
h.
Install the right front
engine baffle and
secure the side engine
cowl latches,
if previously
removed.
c. Run the engine for a 15 minute period at 1200 RPM.
WARNING
If
the air conditioner is to
be operated on the ground
for
servicing, the test
area should be clean and
free of any loose
objects lying on the
ramp. Only the service
valves located on
the evaporator
assembly should be used
for testing.
d Shut down engine
and recheck
both belt tensions.
If compressor belt
tension falls as
low as 60 pounds,
retension to 80 pounds. If alternator belt
tension falls below 50 pounds.
retension
to 70 pounds. If a
plastic-type alternator
belt (Gates P/
N 8075- 1191) is installed.
insure that the tension is 35-40 lbs.
e. This tension
check should be made at every 100
hours orannual inspection, whichever
occurs first.
f. Check all idler and bracket bolts for safety and replace engine cowling
13-24. MAGNETIC CLUTCH.
13-25. MAGNETIC CLUTCH REMOVAL. (Refer to Figure 13-11.)
a. Remove the self-locking
capscrew and washer
(I) from the compressor shaft.
b.
Insert a 5/8 - I I UNC-2B bolt in the
threaded portion of the hub and tighten.
The
pressure
exerted by the bolt on the end of
the compressor crankshaft will force off
the rotor
pulley assembly (2)
without damage to the clutch
or compressor.
CAUTION
Do not use a wheel puller on the outer flange of the pulley.
This can damage
the pulley grooves
or clutch bearings.
c.
Remove the four bolts securing the field
assembly against the compressor
bosses and
remove the bolts. washers and field assembly.
Revised:
11/4/83
3H10
ACCESSORIES
AND
UTILTIES
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