| PROBLEM |
NOTE |
POSSIBLE CAUSE |
REMEDY |
| Low Capacity |
1 |
Blower speed too low |
Check belt drive for slippage; adjust if necessary. Check speed and compare with performance chart. |
| |
2 |
Excessive pressure |
Check inlet vacuum and discharge pressure; ensure protection valves are correctly set and operational. |
| |
3 |
Obstruction in piping |
Check piping, filter, relief valves, isolation valves and silencer to assure an open flow path. |
| |
4 |
Excessive slip |
Check internal clearances for excess wear, contact S & A Engineering Services Ltd. |
| Excessive Power |
5 |
Blower speed too high |
Check speed and compare with performance chart. |
| |
6 |
Pressure too high |
See Notes 2 and 3 |
| |
7 |
Unbalanced or rubbing impellers |
Inspect outer casting for hot sports. Check drive alignment (coupling and V-belt). |
| |
8 |
Blocked inlet filter |
Change or clean filter. Contact S & A Engineering Services Ltd for replacement element. |
| Excessive Heating |
9 |
Incorrect or inadequate lubrication |
Confirm correct oil specification and restore correct lubrication levels in gearcase. |
| |
10 |
Excessive pressure rise |
See Notes 2 and 3. |
| |
11 |
Drive mis-alignment |
Check and realign. |
| |
12 |
Blower speed too low |
See Note 1. |
| Vibration or Noisy Operation |
13 |
Drive mis-alignment |
See Note 11. |
| |
14 |
Unbalanced or rubbing impellers |
See Notes 7 and 19. |
| |
15 |
Worn bearings and gears. |
Replace worn bearings and gears. Contact S & A Engineering Services Ltd. |
| |
16 |
Loose motor, blower or pipework. |
Check and re-righten bolts where loose. |
| Seizure |
17 |
Pressure overload |
See notes 2 and 3. |
| |
18 |
Mis-Alignment. |
See note 11. |
| |
19 |
Build up of foreign material |
Clean off foreign material. Return to S & A Engineering Services Ltd for overhaul. |
| |
20 |
Excessive overhanging load |
Change or repair unit. Check pulley dimensions. Realisgn and tension. Change drive configuration. |