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Service and Maintenance
Figure 121.Tension Gauge
2. Set the large O-ring on the belt tension gauge at the
deflection value determined in Step 1b.
3. Set the small O-ring at zero on the force scale of the
gauge plunger.
4. Place the large end of the gauge at the center of the belt
span; then depress the gauge plunger until the large O-
ring is even with the top of the next belt—-or even with
a straightedge placed across the fan and motor
sheaves. See
Table 59, p.
5. Remove the belt tension gauge.The small O-ring now
indicates a number other than zero on the plunger's
force scale.This number represents the force (in
pounds) required to give the needed deflection.
6. Compare the "force" scale reading (Step 5) with the
appropriate "force" value listed in
the
"force"
reading is outside the range, readjust the
belt tension.
Note: Actual belt deflection "force" must not exceed the
maximum "force" value shown in
7. Recheck the belt tension at least twice during the first
2 to 3 days of operation. Belt tension will decrease
rapidly until the new belts are "run in" .
180
181.
Table 59, p.
181. If
Table 59, p.
181.
Figure 122.Belt Tension
RT-SVX24J-EN
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