1. Electric working platform slides when it is stationary.
Reason: Motor brake is out of order, brake friction disc is vulnerable part.
Exclusion method: (1). Adjust the distance between the friction disc and armature to 0.5mm-0.6mm. (2). Change friction disc.
2. One side of scaffolding working platform hoist doesn’t work or motor brake heat and smoke.
Reason: The brake armature doesn’t work which causes friction between brake disc and motor cover. Coil and rectifier block is short circuit damaged.
Exclusion method: Replace motor brake coil or rectifier block.
3. Electric suspension gondola is making abnormal noise.
Reason: Components are damaged.
Exclusion method: Adjust and replace.
4. The wire rope can not pass though electric hoist.
Reason: Welding of rope end is not good enough.
Exclusion method: (1). Polish welding area. (2). Make wire rope ending again.
5. Electric hanging platform tilts.
Reason: Motor speed is not synchronous, speed limit has abrasion, rope pulling differently, brake sensitivity is different.
Exclusion method: Load uniformly on working platform, adjust brake distance, replace speed limit spring.
6. The steel wire rope wears abnormally.
Reason: Wheel and groove press wire rope friction.
Exclusion method: Replace the parts of rope pressure device or wire rope.
7. The safety lock is not able to lock wire rope.
Reason: Rope clip has wear, steel wire rope stained with oil, safety lock reacts slowly
Exclusion method: Replace the spring of safety lock , inject lubricating oil, replace rope clip and steel wire rope.
8. Suspended working platform can not work.
Reason: Electric power supply is abnormal, motor overheating causes thermal relay action.
Exclusion method: Check electric power, and reset thermal relay after motor cools naturally.