BT RRE200 - Inspection; Adjusting Play

11 – 2 Repair Manual RRE140/160/180/200/250 © BT
Brake and wheel 3000
Travel brake system (3100)
T-code Valid from serial number Date Publication No.
815, 816 6051502 2008-08-21 261828-040
Inspection
1. Check the thickness of the discs.
The nominal thickness of a new disc = 2.0 mm.
Limit for wear = 1.4 mm.
2. When replacing discs:
Replace all inner and outer discs at the same time. Do NOT replace
individual discs.
3. Check that the discs are flat and that there is no damage to the
splines or the recess.
4. Check the electrical resistance of the magnetic coil.
Nominally 47.7 ohms at 20
o
C.
IMPORTANT!
The resistance measurement can be made with the brake/wheel fitted
to the truck.
Adjusting play
1. Connect the brake to 48 V DC.
2. Check the amount of play, measurement A, with the brake en-
gaged.
IMPORTANT!
Check play at two points simultaneously, with 180° between the
points.
3. Maximum permitted play = 2.25 mm.
4. Nominal play on a newly adjusted brake should be 1.0 - 1.25 mm.
5. To adjust, remove the aluminium end plate.