Hot box triggered: 2632 B2: 121*C Bearin ~~~~~ Hot box triggered: 2632 B2: 121*C Bearing temperature.  2632 Checked brake shoes - ok. Brake function test - ok. No signs of leakage from gearbox and aircon. Brake pressure found to be low. Swapped ACU from #1632 to #2632. Replaced #1632 transmitter. Brake pressure function - ok. Brake cyclic check - ok.  Wong WK/Aqil/Shamil 45215 ACU S/N : (after swapped) #1632 : 1442-034 #3632 : 1549-211