REMA LK-13 Series, Руководство пользователя

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47
1.1.37 Adjustment of the sliding clutch
If the load is measured with a compression spring tool the load value reading for setting the clutch is up
to 30% higher.
5. Loosen the lock nut (29)
6. Compress the clutch spring sensitively by tightening the threaded bush with the fan (28) until the load is just lifted.
If turning the bush clockwise the clutch torque will increased
If turning the bush cunterclockwise the clutch torque will decrease.
7. Lock the threaded bush using the lock nut (29) after having completed the adjustment.
8. Test the clutch setting once more by raising the nominal load to the uppermost load position and letting clutch slip.
The clutch should not slip for longer than 2 - 3 seconds.
Load chain
Hoist chains are means of carrying which require official approval. It is, therefore, important to observe the
guidelines issued by the trade association’s centre for accident prevention with regard to round steel chains
in hoisting operation, the guidelines for general inspection and test specifications in accordance with DIN
685, section 5, Nov 1981, the accident prevention regulations in VBG 8 of April 1980/1990 and in VBG 9 of
December 1979 / April 1983 or equivalent regulations in the country in question.
1.1.38 Lubricating the load chain before starting and during operation
The links along the entire length of the load chain must be lubricated with a penetrating gear lubricant oil
before starting operation for the first time and during unloaded operation. Subsequent lubrication,
whereby the links must be cleaned first, depends on the degree of use and the operating conditions.
A dry-film lubricant, e.g. lubricating varnish, graphite powder, should be used when ambient influences
are conducive to wear (sand, emery).
1.1.39 Testing wear in the load chain
The continuous monitoring of the load chain is compulsory according to DIN 685 section 5
and the accident prevention regulations in VBG 8 section 27. The load chain must be tested
before starting operation and after approx. 200 operating hours or 10,000 load cycles under
normal conditions or more often under demanding and severe conditions.
Testing must cover checking links, particularly at their points of contact, for wear, cracks,
deformation and other damages.
The chain must be replaced:

if the nominal thickness at the points of contact is reduced by 10%,

if the chain or a link is elongated by 5 %, or an eleven links piece of chain is elongated by 2%

if the links are rigid
The chain guide and hold-down must also be replaced with the chain.
Caution! Replacement of chain can only be filled if obtained from the manufacturer or his
approved
service agent.
1.1.40
Measuring wear and replacing chain
Figure 10: Measuring wear and replacing chain
Measure t = max. 47,3 measure one chain link inside
Measure t = max. 504,9 measure 11 chain links
Measure d
m
= minimal 0,9 d = 14.4
Formula 1:
2
2 1
d d
d
m


t
1
2
d
d