Performing inspection / maintenance
Removing the filter regulator
The unit may not be dismantled unless the
pneumatic system has been depressurized. The unit
has to be removed before it can be disassembled.
Removing the top part
Pull the setting knob [1] upwards and turn it all the way
in a counterclockwise direction until it will go no further.
Unscrew the upper assembly [3].
Remove the governor spring [5] and the set screw [4]
Pull the piston [6] out of the housing [8]
Pull the gasket [7] out of the housing [8]
Removing the bottom part
Taking the lower assembly apart is facilitated if you turn
it so that the reservoir [14] is pointing upwards.
Unscrew the drip tray [14].
Remove the tapered filter element [13] from the
reservoir.
Rotate the unit.
Loosen the insert [12] using needle-nose pliers by
turning it to the left and remove it from the housing [8].
Remove the pressure spring [11] from the housing [8]
using needle-nose pliers.
Pull the valve piston [10] out of the housing [8].
Remove the O-ring Ø 31x2 [9] from the housing.
CTU 1000 Series
en(us)
Page 79 / 92
BeWa CTU1000 3229578p en-us 2017-04-25.doc
2017-04-25
