Work on the product
Replacing the brake 61
TK Elevator
BA, TW45 | 6231003860 | 03/2023
Testing of both brake circuits
Deceleration values for brake circuits
▪ The minimum deceleration value for one brake circuit is approx. 0.4 m/s²
▪ The minimum deceleration value for both brake circuits is approx. 1.0 m/s²
1. Run a brake test with both brake circuits by triggering emergency braking.
The deceleration values must be significantly higher than values de-
termined in the individual test.
Check for wear
1. Use a feeler gauge to check the air gap between the coil body and arma-
ture base plate with the brake closed (coils without current).
2. Repeat the operation at different positions.
Nominal air gap: Brake closed (without current), new lining.
Limit air gap: Brake closed (without current), lining worn.
Test air gap: Brake opened (under voltage), minimum distance
between friction lining and contact surface.
3. Replace the complete brake if the limit air gap has been reached.
Repairs can only take place at TK Aufzugswerke GmbH.
7.2 Replacing the brake
7.2.1 Mayr brake
When the wear limit (1.0 mm / gap) is reached or there is a defect in the brake,
the complete brake is to be replaced in all cases.
1. Installation and removal, see
Chap.10P.75.
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