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Air Conditioning
Compressor Clutch Check
1. Check t h e plated parts of the pressure plate f o r
4. Check resistance of the field coil. If resistance is not
color changes, peeling or other damage. If there is
w i t h i n specifications, replace the field coil (see
d a m a g e , replace the clutch set (see page 21-51).
page 21-51).
2. Check the pulley bearing play and drag by rotating
Field Coil Resistamce: 3.4-3.8 ohms at 68°F (20°C)
the pulley by hand. Replace the clutch set w i t h a
3. Measure the clearance between the pulley (A) and
the pressure plate (B) all the w a y around. If the
clearance is not w i t h i n specified limits, remove the
pressure plate (see page 21-51) and add or remove
shims as needed to increase or decrease clearance.
Clearance:
0.5±0.15 m m (0.020±0.006 in.)
NOTE: The shims are available in three
thicknesses: 0.1 m m , 0.3 m m and 0.5 m m .
21-50
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Table of Contents
Troubleshooting
