TM 5-3805-280-24-1
Adjustments
CHECK AND ADJUST COMPRESSOR BELT TENSION
SPECIFICATIONS
If belt deflection excessive , allow belt to cool for
8--10 minutes and try again.
Belt Deflection at 400 N (90 lb
19 mm (0.75 in.)
force) Deflection
If Belt Deflection Excessive--Specification
If Belt Deflection Not To
8--10 Minutes
Specification Cool Time
Cool............................................................................... 8--10 Minutes
SERVICE EQUIPMENT AND TOOLS
IMPORTANT: Force to adjust belt must be applied
Belt Tension Gauge
to front of compressor housing only
to prevent damage to compressor.
IMPORTANT: Never over tighten belt. Over
tightening may cause belt cord
3. Loosen compressor mounting cap screws. Apply
damage and excessive load on
force to front of compressor housing to tighten belt.
Tighten cap screws.
1. Run engine for five minutes. Stop the engine, then
4. Repeat Steps 1 and 2 to check belts.
immediately check tension using a belt tension
gauge.
2. Measure strand tension or deflection at a point
halfway between pulleys. Belt must deflect 19 mm
(0.75 in.) at 400 N (90 lb force).
Belt Deflection--Specification
Deflection ............................................. 19 mm (0.75 in.) at 400 N (90
lb force)
9031
20
CED,TX14795,4343
1904MAR981/1
12
7-33