Maintenance
Sheave Alignment
•The motor sheave is to be positioned as close as possible to the motor in order to minimize torque on the motor bushings.
•The motor and fan sheaves may have grooves that are not used. The bottom surface of the motor and fan sheaves must be aligned within 1⁄8" of each other and level within 1⁄2° (1⁄8" in 12) in order to not adversely affect belt and sheave life.
•Alignment can be achieved by placing a straight edge across the top of the sheaves making sure that it is level and measuring down to the bottom surface of both sheaves at four points.
•The belt is to be located in the lowest set of grooves.
Bushing | Fastener Size |
| Torque | ||
ft· lbƒ |
| N· m | |||
|
|
|
| ||
SH | 56M | - 20 | 6 |
| 8 |
SDS | 56M | - 20 | 6 |
| 8 |
SD | 56M | - 20 | 6 |
| 8 |
SK | 6QE - 18 | 13 |
| 18 | |
SF | 6 | - 16 | 22 |
| 30 |
E | 56O | - 13 | 35 |
| 48 |
F | 6QE - 12 | 65 |
| 88 | |
Bushing Fastener Torque Values
22