Specifications
17
(3) When it is necessary to keep the unit outdoors, a protective covering should be fitted.
6.2 Inspection
(1) Daily inspection: Before starting daily operation, check the following
(a) Correct power supply.
(b) "Up", "Down" and "Emergency stop" (where fitted) test runs under no load.
(c) Correct motor performance.
(d) No abnormal or excessive noise.
(e) No malfunction of the bottom hook safety latch.
(f) Proper function of moving/turning parts, limit switches and brake.
(g) Well lubricated load chain.
(2) Monthly inspection
(a) Load chain:
Chain Wearing Test
Using times
Load Spectrum
Cubic mean
Value
Non-lubricated Lubricated
1
(Light) 50% 75000 175000
2
(Medium) 63% 55500 129500
3
(Heavy) 85% 30000 70000
4
(Vary heavy)
100% 15000 35000
Above testing data under lifting height 1M










