Milwaukee 9561 handleiding
Handleiding
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14
MJC680-2 Rev AA April 2019
SECTION VI — TROUBLESHOOTING CONTINUED
Problem Probable Cause Remedy
Motor
overheats
1. Excessive load. 1. Reduce load to within rated capacity of hoist.
2. Low voltage.
2. Determine cause of low voltage and bring up to within plus or minus 10% of the voltage
specified on the motor. Measure voltage at the hoist reversing contactor while lifting a load.
3. Extreme external heating.
3. As the ambient temperature rises towards the 130°F limitation of the unit, frequency of the hoist
operation must be limited to avoid overheating of the motor. See ADVERSE ENVIRONMENTAL
CONDITIONS, page 4.
4. Frequent starting or reversing.
4. Excessive inching, jogging or reversing should be avoided since this type of operation will
drastically shorten the life of motor, contactor and brake.
5. Brake dragging. 5. Check brake adjustment (See BRAKE ADJUSTMENT, page 9)
Lack of proper
lifting speeds
1. Hoist overloaded. 1. Reduce load to within rated capacity of hoist.
2. Brake dragging. 2. Check for proper brake adjustment or other defects.
3. Low voltage.
3. Ensure that the voltage at the reversing contactor is within ±10% of the nominal voltage while
lifting a load.
4. Overload limiting clutch intermittently
slipping.
4. Replace overload clutch assembly.
Motor brake noise
or chatter (while
starting hoist)
1. Brake needs adjustment. 1. See BRAKE ADJUSTMENT, page 9.
2. Low voltage
2. Ensure that the voltage at the reversing contactor is within ±10% of the nominal voltage while
lifting a load.
Motor brake “buzz”
(anytime hoist is
running)
1. Brake needs adjustment. 1. See BRAKE ADJUSTMENT, page 9.
2. Broken shading coil on brake frame. 2. Replace shading coil or complete brake frame assembly.
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Productinformatie
| Merk | Milwaukee |
| Model | 9561 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 9796 MB |
