Service and Maintenance
180 RT-SVX24J-EN
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 g
auge 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. 181.
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 Table 59, p. 181.If
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 Table 59, p. 181.
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”.
Figure 121.Tension Gauge Figure 122.Belt Tension
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