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Maintenance
WARNING
Rotating Components!
During installation, testing, servicing and troubleshooting of this product it may be necessary to measure the speed of rotating components. Have a qualified or licensed service individual who has been properly trained in handling exposed rotating components, perform these tasks. Failure to follow all safety precautions when exposed to rotating components could result in death or serious injury.
Make sure all personnel are standing clear of the unit before proceeding. The system components will start when the power is applied.
Fan Belt Adjustment - Belt Drive Units
The fan belts must be inspected periodically to assure proper unit operation.
Replacement is necessary if the belts appear frayed or worn. Units with dual belts require a matched set of belts to ensure equal belt length.
When removing or installing the new belts, do not stretch them over the sheaves. Loosen the belts using the belt tension adjustment bolts on the motor mounting base.
Once the new belts are installed, using a Browning or Gates tension gauge (or equivalent) illustrated in Figure 16; adjust the belt tension as follows;
1.To determine the appropriate belt deflection;
a.Measure the
b.Divide the distance measured in Step 1a by 64; the resulting value represents the amount of belt deflection that corresponds to the proper belt tension.
2.Set the large
3.Set the small
4.Place the large end of the gauge at the center of the belt span; then depress the gauge plunger until the large
5.Remove the belt tension gauge. The small
6.Compare the “force” scale reading (Step 5) with the appropriate “force” value listed in Table 6. If the “force” reading is outside the range, readjust the belt tension.
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