Machine Troubleshooting
SYMPTOM |
|
| POSSIBLE CAUSE | CORRECTIVE ACTION |
| |||||
|
|
|
|
|
|
|
|
| ||
Sanding belt does not ten- | 1. | Low air pressure. | 1. |
| Adjust air pressure to 75 PSI at primary regulator. |
| ||||
sion correctly; rollers slip | 2. | Air leaks in system. | 2. |
| Inspect all hoses and connections for leaking air; use water on sus- |
| ||||
under belt. |
|
|
|
|
|
|
|
| pected area to detect bubbles. |
|
|
|
|
|
|
|
|
|
| ||
Sanding belt runs off to one | 1. | Air eye fork clogged. | 1. |
| Clean the intake hole on the air eye fork. |
| ||||
side, stopping the sander. | 2. | Oscillation return valve closed. | 2. |
| Open valve. |
| ||||
|
|
| 3. | Oscillation timing incorrect. | 3. |
| Adjust oscillation timing. |
| ||
|
|
|
|
|
|
|
|
| ||
Sanding belt will not start. | 1. | Sanding belt is not tensioned. | 1. |
| Tension sanding belt. |
| ||||
|
|
| 2. | Limit switches engaged. | 2. |
| Center sanding belt so it is not touching the limit switches. |
| ||
|
|
| 3. | Emergency stop plate engaged. | 3. |
| Make sure emergency stop switch is released. |
| ||
|
|
|
|
|
|
|
|
|
| |
Motor will not start. |
| 1. | Low voltage. | 1. |
| Check power line for proper voltage. |
| |||
|
|
| 2. | Open circuit in motor or loose con- | 2. |
| Inspect all lead connections on motor for loose or open connections. |
| ||
|
|
|
| nections. |
|
|
|
| ||
|
|
|
|
|
|
|
|
| ||
Motor will not start; fuses or | 1. | Short circuit in line cord or plug. | 1. |
| Inspect cord or plug for damaged insulation and shorted wires. |
| ||||
circuit breakers blow. | 2. | Short circuit in motor or loose con- | 2. |
| Inspect all connections on motor for loose or shorted terminals or |
| ||||
|
|
|
| nections. |
|
| worn insulation. |
| ||
|
|
| 3. | Incorrect fuses or circuit breakers | 3. |
| Install correct fuses or circuit breakers. |
| ||
|
|
|
| in power line. |
|
|
|
| ||
|
|
|
|
|
|
|
|
|
| |
Motor overheats. |
| 1. | Motor overloaded. | 1. |
| Reduce load on motor. |
| |||
|
|
| 2. | Air circulation through the motor | 2. |
| Clean out motor to provide normal air circulation. |
| ||
|
|
|
| restricted. |
|
|
|
| ||
|
|
|
|
|
|
|
|
|
| |
Motor stalls | (resulting in | 1. | Short circuit in motor or loose con- | 1. |
| Inspect connections on motor for loose or shorted terminals or worn |
| |||
blown fuses or tripped cir- |
| nections. |
|
| insulation. |
| ||||
cuit). |
|
| 2. | Low voltage. | 2 |
| Correct the low voltage conditions. |
| ||
|
|
| 3. | Incorrect fuses or circuit breakers | 3. |
| Install correct fuses or circuit breakers. |
| ||
|
|
|
| in power line. |
|
|
|
| ||
|
|
| 4. | Motor overloaded. | 4. |
| Reduce load on motor. |
| ||
|
|
|
|
|
|
|
|
| ||
Loud, repetitious noise com- | 1. | Pulley set screws or keys are miss- | 1. |
| Inspect keys and set screws. Replace or tighten if necessary. |
| ||||
ing from machine. |
|
| ing or loose. |
|
|
|
| |||
|
|
| 2. | Motor fan is hitting the cover. | 2. |
| Tighten fan or shim cover. |
| ||
|
|
| 3. | 3. |
| Replace |
| |||
|
|
|
|
|
|
|
|
|
| |
Conveyor belt not | tracking | 1. | Conveyor rollers moved out of | 1. |
|
| ||||
in center. |
|
|
| adjustment. |
|
|
|
| ||
|
|
|
|
|
|
|
|
| ||
Conveyor belt slipping. | 1. | Conveyor rollers have incorrect | 1. |
| Adjust conveyor rollers to place more tension on . |
| ||||
|
|
|
| tension. |
|
|
|
| ||
|
|
| 2. | Conveyor rollers contaminated with | 2. |
| Clean conveyor rollers. |
| ||
|
|
|
| dirt or dust. |
|
|
|
| ||
|
|
|
|
|
|
|
|
|
|
|
Emergency | brake | stops | 1. | Air pressure incorrect. | 1. |
| Adjust air pressure to 75 PSI, |
| ||
slow. |
|
| 2. | Air leak in system. | 2. |
| Find and fix air leaks. |
| ||
|
|
| 3. | Brake rotor contaminated with oil. | 3. |
| Clean brake rotor with automotive brake parts cleaner. |
| ||
|
|
| 4. | Brake pads worn out. | 4. |
| Replace brake pads. |
| ||
|
|
|
|
|
|
|
|
| ||
Grinding noise when brak- | 1. | Brakes severely worn out. | 1. |
| Replace brake pads, have rotor turned (possibly replaced). |
| ||||
ing. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||
Machine slows when oper- | 1. | Feed rate too high. | 1. |
| Feed workpiece slower. |
| ||||
ating. |
|
| 2. | Depth of cut too great. | 2. |
| Reduce depth of cut. |
| ||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
G0527 18" Wide Belt Sander |
