Alternator Belt Tension - Piper CHEROKEE WARRIOR PA-28-151 1995 Maintenance Manual

PIPER CHEROKEE WARRIOR SERV I C E M A N U A L
TABLE XI-III. CHRYSLER ALTERNATOR SPECIFICATIONS
ALTERNATOR MODEL
Rated Output
Ground Polarity
Rotation
Rotor:
Current Draw
Resistance
Output Test:
Amperes Output
Voltage
11-33. CHECKING ALTERNATOR BELT TENSION.
An improperly tensioned belt will wear rapidly, slip, and
reduce alternator output. Belt must be checked for proper
t e nsion at installation, after first 25 hours operation, and each
100 hours thereafter.
There are three acceptable methods of checking alternator belt tension: the torque method, the deflection
method,and using a belt tension gauge.
a. Torque Method: This method of checking belt tension consists of measuring torque required to slip
the belt at the small pulley as follows:
Chrysler alternators do not have a nut on the shaft, and
t h e r efore, cannot be checked by this method.
1. Apply a torque indicating wrench to the nut attaching pulley to alternator and turn ina clock-
wise direction. Observe torque shown on wrench at the instant the pulley slips.
2 . Check torque in Step a with torque specified in the following Chart 2406. Adjust belt to proper
tension.
Width of Belt
3/8 inch
3/8 inch
1/2 inch
1/2 inch
Revised: February 28, 1995
CAUTION
NOTE
TABLE XI-IV. ALTERNATOR BELT TENSION
Belt Condition
New
Used
New
Used
2F4
Island Enterprises
CHRYSLER 3656624 or 4111810
60 amperes
Negative
Clockwise at Drive End
4.5 to 6.5 amps 12-volts
1.5 to 2.0 ohms
57 amperes minimum
15-volts 1250 Engine rpm
Torque Indicated at Alternator
Pulley
11 to 13 ft-lb
7 to 9 ft-lb
13 to 15 ft-lb
9 to 11 ft-lb
ELECTRICAL SYSTEM