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
The supply 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 installing new belts, do not stretch them over the sheaves; instead, loosen the adjustable motor-mounting base.
Once the new belts are installed, adjust the belt tension using a Browning or Gates tension gauge (or equivalent) illustrated in Figure 63, p. 65.
To determine the appropriate belt deflection:
Note: The actual belt deflection force must not exceed the maximum value shown in Table 21, p. 66.
Source: MaintainX (Community Member)