Winch brake holding capacity test

 

Brake Test Kit

 

 

 

TEST PROCEDURE:

 

1.Before brake test, check that the brake lining surface is continuously touched on brake drum.

 

2.Tighten the brake of testing drum surely and disengage the clutch.

 

3.Install the test kit with pins.

 

 

 

4.Put the hydraulic jack on the lower edge point of the test kit. Adjust the height of hydraulic jack on foundation.

* During jack up operation, it is necessary to tight the brake handle again. (If slip the drum before MBL 80%)

 

5.While paying attention to each part, raise the pressure by hand operated pump and read the scale of attached pressure gauge.

 

 

6.Brake holding capacity can be found the value gained from pressure gauge.

e.g.)

- MBL 80% : 455kg/cm2 (80 ton) -> Maker setting

- MBL 60% : 341kg/cm2 (60 ton) -> Company recommendation setting

 

7.Compare with initial brake band tigh position and now brake band tight position. If position changed, Please adjust position bar.

 

 

8.After the test is finished, operate it in the reverse procedure of above description.

- Hydraulic jack pressure release

- Remove the Brake holding test kit

 

WARNING

Prepare a brake test bracket which is strong and stable enough to support the force.

After making sure that the brake test bracket is set on a level, operate the hand pump

carefully enough not to work off the brake test bracket.

If the brake test bracket is worked off, you may encounter injury.