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SECTION 8
MAINTENANCE
Page 8
AIR-CONDITIONER
(If
equipped)
AIR-CONDITIONER FILTERS - Continued
Outside Air-Conditioner Filters - Continued
2. Removethe filter located just inside door (2).
3. Carefully tap the filter against the palm of your hand to
remove loose dust.
4. Direct clean, dry, compressedair up and down the pleats
on the clean side of the filter.
NOTE: Air pressureat the nozzle must not exceed 100 psi.
Keep a reasonabledistance between the air nozzle and the
element.
5. Reinstall the filters inside the air-conditioner. Close door
(2) and securewith the hold-down bolts (1).
FREON COMPRESSORDRIVE BELT
Checking Tension (lliust. 9)
Beltson new machinesand replacementbelts losetheir tension
as they seat into the pulley grooves. Check the tension of
these belts at 1, 10 and 50 hours to stabilize the belt tension
and at intervals of 200 hours thereafter.
D
Illust.9
Checking Belt Tension.
Whenever possible, the belt tension should be checked at the
center point of the belt between the two pulleys. Using a
spring scaleand a straightedge,check the tension asfollows:
1. Position the straightedge(A) over the belt (D).
2. Hook the spring scale (B) over the belt midway between
the two pulleys (C). Pull the spring scaledown at a right angle
to approximately a 20-lb. deflection reading.
3. Holding the spring scale in this position, measure the
distance between the hooked position on the belt and the
bottom of the straightedge. The tension will be correct when
the distance is 1/4 to 1/2 of an inch.
tJ
lIIust. 10
Freon CompressorBelt Tensioning.
1. Bracebolt.
2. Brace Bolt.
3. Freon Compressor.
Adjustment (lilust. 10)
1. Loosenthe compressorbracebolts (1 and 2).
2. Movethe compressorout to tighten the belt or in to loosen
the belt until the correct tension is obtained.
3. Tighten the compressorbrace bolts (1 and 2).
NOTE: Do not overtighten belt, as this produces excessive
loads on compressor bearings. After belt has been secured,
recheck belt tension.
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