OCIMF_Mooring_Equipment_Guidelines_(Second_Edition)

7.5.5.1 Test Program

7.5.5.1.1 Frequency

Each winch brake is to be tested individually and tests are to be carried OUI prior to the vessel's
delivery and every year thereafter in line with recommendalions in tbe I nternational Safety Guide
for Oil Tankers and Terminals (ISGOTT) Chapter 3. In addition, individual winches are to be tested
after completion of any modification or repair involving the winch brakes, or upon any evidence of
premature brake slippage or related malfunctions.

7.5.5.1.2 Test specification

For each vessel a winch test specification is prepared incorporating specific instrucljoDs for setting up

the test gear, preparation of the winch for testing, setting of the winch brakes, application of the

test load, revision of torque wrencb or hydraulic pressure readings if required, and recording of lest

results. The coefficient of friction of the brake lining is considerably affected by moisture. To assure

constant results the winch is to be operated for a short period with the brake set slightly on to dry

the brake surface.

7.5.5.1.3 Supervision of testing

All winch testing is to be carried out under the supervlslOn or in the presence of a senior officer

designated by rhe Master or Ch..ief Engineer or repair superintendent familiar with the test procedure

and the operation of the winches.

Bolr(j\40

Flang"

Upper Dk Plate

2400

AH dimensions In mm

FIGURE 7.5: TYPICAL WINCH BRAKE TEST EQUIPMENT