9. Install the new brake on the shaft.
1.
Secure the fixation with the three
screws. Pre-tighten the screws by
hand.
2.
Tighten the screws with a tool.
3.
If the brake has two more screws,
remove the screws.
NOTE
There may be two extra screws on the
brake. The screws are used during
transportation to keep the brake
components together. Remove these
two screws when you have installed the
new double brake.
NOTE
The top brake is the main brake, and the
bottom brake is the secondary brake.
10. Plug in the brake cables (1) and (2).
2
1
1. Main brake
2. Secondary brake
11. Install the end cover on the brake side.
For more information, see chapter Removing and installing the hoist covers.
12. Tighten the screws of the end cover to the correct tightening torque.
For more information, see chapter Tightening torques for the chain hoist.
13. Turn on the power to the hoist.
14. Check that the brake works normally.
1.
First test the brake without any load.
2.
Then test the brake with a dynamic test load of 110% (EUR) or 125% (US) of the rated
capacity. Size of the dynamic test load depends on the country regulations.
3.
In the European countries, test the brake also with a static test load of 125% of the
rated capacity.
7.4.6
Replacing the double brake
1. If a load is attached to the hook, remove it.
2. Disconnect the chain hoist from the main power supply network.
3. Remove the end cover on the motor side.
7 MAINTENANCE
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4/2020
