MGM BAH 132 Series, Руководство по эксплуатации и обслуживанию

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Page 35 of 63
Doc. Ref.: A79H0319
Verify that the new brake disc is properly inserted in the correct way. For motors with k brake discs (BAHK 132 - BAH
160-280), the disc must be inserted with the hub longest segment pointing towards the brake friction surface (as
shown below).
BAH132 BAHK132 - BAH 160÷280
The new brake disc must be handled with clean hands, because even a small trace of grease will decrease the braking
performance and also increase noise.
After having mounted the brake coil (25), proceed to the airgap and brake torque adjustment (see the pertinent paragraph). For
re-assembling, proceed backwards.
Brake coil replacement
Remove the brake cover (26) as described in the relevant paragraph, disconnect the brake coil (25) connectors. Unscrew the
locknuts (22) and pull off the brake coil (25) from brake adjusters (19). Reassemble the new brake coil on the brake adjusters (19)
and reconnect the electrical connectors. Pay attention to place the electrical connectors in the right position so that to allow their
insertion. Before reassembling the brake cover (26) and the nuts verify that the connections and relative cables are property
tightened. Proceed with the air gap adjustment as stated in the respective paragraph. Verify that the brake coil functions
correctly; when the brake is energized, the brake coil (25) should attract the brake moving element (24) with a quick stroke, and
hold it without any vibration or noise. In case of any vibration, check that terminal connectors are coupled correctly and
tightened.
Brake adjusters replacement
Remove the brake cover (26) as described in the relevant paragraph. Take off the brake coil (25) from the brake adjusters (19),
remove the nuts (20-21) and the springs (18). Remove the brake moving element (24) sliding it through the brake adjusters (19),
remove the old brake adjusters and screw the new ones verifying their steady fastening on the rear cover brake surface (17). After
having screwed each brake adjuster (19) it's necessary to check that its support bottom is completely leaned on the rear cover
brake surface (17). For information on the right brake adjusters tightening torque please contact us.
Air Gap check and adjustment
The airgap (60) is the distance between the two brake magnetic cores: the brake coil (25) and the brake moving element (24). The
airgap must always stay within the values indicted in Table 1.
Airgap (60)