Hale CAFSPro - Manual (Page 58)

❑ Routine Maintenance
58 CAFSPro User Operation Manual
p/n: 029-0020-75-0
To Measure and Adjust Belt Tension
(See Figure 7-5: ‘Measuring Tension using a Scale.’)
1. On the strain
gauge, slide the
narrow O-ring as
close as possible
to the body of the
strain gauge. (See
Figure 7-4: ‘Ten-
sion Gauge’ on
page 57.)
2. Place the tension
gauge in the mid-
dle of the belt, half-
way between the
centers of the two
pulleys. Measure
must be taken on
the LEFT side of
the pulley.
3. Make sure that the body of the strain gauge is perpendicular to the belt
when applying load. (See Figure 7-5: ‘Measuring Tension using a
Scale.’)
4. Pick a reference point on the body of the gauge that corresponds to a
mark on the scale. Use a straight piece of metal or wood to support the
scale as it is not to be moved during the strain test.
5. Push the strain gauge towards the belt until the reference point on the
body of the gauge moves 5/16” (23.8 mm) along the scale.
6. Read the tension, marked by the narrow O-ring. (See Figure 7-4: ‘Ten-
sion Gauge’ on page 57.)
7. If tension is lower than 16 lbs. (7.3 kgs), the belt is loose. If tension is
higher than 20 lbs. (9 kgs), the belt is too tight. If a belt tension is not
within the required limits, continue with Step 8.
8. If the belt tension is less than required:
❑ Loosen the bolt located in the middle of the compressor mounting
bracket. (See Figure 7-6: ‘Belt Tension Adjustment Bolts’ on page 59.)
Figure 7-5: Measuring Tension using a Scale