Liftket STAGEKET, Руководство по эксплуатации

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7.8.2 Adjustment of friction torque at the safety sliding clutch
Caution!
The adjustment works should be executed by trained personnel only.
1. Apply the test load =1.1 times the nominal/rated load onto the load hook or the clutch testing device.
2. Switch on the chain hoist by control pendant and check, that the test load can be lifted or the clutch testing device
shows approximately 1.3 times the nominal load. The factor 1.3 is depending on the relevant hoisting speed.
3. Lower the test load to the floor.
4. Decrease or increase clutch torque until the test load is just lifted or the clutch testing device shows the required
value.
5. Adjusting the clutch torque as follows:
a. Loosen and remove the cap for brake.
b. Use two spanners to loosen the counter-tightening (12).
c. Tighten (turn adjusting nut clockwise) or loosen (turn adjusting nut counter-clockwise) the pressure spring until
the required test load is just lifted or the clutch testing device shows the required value. After adjustment use
two spanners to counter-tighten the two hexagon nuts.
6. Finally: Recheck the clutch torque by lifting the test load.
Record the adjusting value in the inspection book of the electric chain hoist.
13 12 11 8
Tag on the magnetic coil of the brake:
Figure 45: Adjustment of friction torque of the sliding clutch
The sliding clutch is set with the test load by the manufacturer. After changing or replacing the brake-clutch-group, it
is not necessary to reset the clutch. A test with nominal load is required only.
The original distance between the counter nut and the magnetic coil of the brake is marked on the tag of the brake.
7.8.3 Checking the release limit of the sliding clutch during regular inspections
The release limit of the sliding clutch has to be checked by a specialist during the yearly work safety inspection in
accordance with DGUV V52 (BGV D6) §26 or DGUV V54 (BGV D8) §23. It should be checked whether the hoist lifts
the nominal load! The hoist must not lift more, than 1.6 x nominal load.
If test loads larger than nominal load are not available, then release limit of slipping clutch can be checked by a clutch
testing device In this case, slipping limit should be approximately 1.3 x nominal load. After checking the release limit,
verify again if the hoist lifts the nominal load.
When measuring wrong release value, the sliding clutch has to be readjusted in accordance with chapter 7.8.2, and
verification to chapter 7.8.3 has to be repeated. Adjustment value is to be recorded.
Einstellmaß Kupplung
Adjusting measure
for sliding clutch
. . . . . . . mm