Fig. 1
Fig. 2
23
3
Service Instructions
3 10 Refitting the Air Processing Unit to the Vehicle
Step Service task
1
Locate the air processing unit in its position on the vehicle.
2
Fit and tighten the three M12 mountings (bolts, Fig. 1 or nuts, Fig. 2) to a maximum torque of 25 Nm.
3
Reinstall the air lines taking great care to ensure correct connection to ports. See above table for recommended
tightening torques.
4
Charge the air system to cut-out pressure.
5
Check all fittings and seals for leakage using soap and water. There should be no leakage.
6
Deplete the pressure in the system by operating the foot brake repeatedly until cut-in pressure is reached.
7
Ensure cut-in and cut-out pressures are correct (refer to vehicle manufacturer).
Conventional face sealing metric ports
Max torque
[Nm]
M12 x 1.25
25
M12 x 1.5
25
M12 x 1.75
25
M16 x 1.5
45
M22 x 1.5
60
Service Steps
Recommended Tightening Torques for Air Ports
