Chain hoist how to adjust the friction clutch

Adjust friction clutch chain hoist use professional testing equipment to measure the friction torque.hoist equipment The use of on-site maintenance, you can only rely on inspection and operational test to complete the following steps:
1, the upper and lower lid and the need to remove the gear box front cover;
2, the locking washer insurance cleat open, and remove the need to adjust the nut, remove the pressure ring disc spring seat and the platen.
3, the outer friction plate without damage or serious damage, the dirt is left in the top.
4, after removing the clutch gear while checking internal friction plate is broken or badly worn, whether the above dirt.
5, clean friction plate, the dried and polished with gauze Replace.
6, try hanging nut after adjustment is required to the amount set out together from half to 25% overload,wire rope winch followed by tightening the adjusting nut, lifting sensitive operation freely, to reach 1.3 to 1.6 times the amount set out above start to slip.
7, in the no-load lifting process required to hook hit the block hit hard rubber case, when the chain hoist motors continue to run while the hook does not move did not hear any sound, indicating that the protective effect safety clutch, and then semi geese lifting load test to the limit position clutch slip, the amount required test load, containing 25 percent since, after less than three trials before the lock washer insurance cleat locked,manual block and the need to slow down cover installed after adjusting friction clutch.