NWB & NWB-HC IM28 OCT 2014
Page 28
Instruction Manual NWB & NWB-HC IM 28 OCT 2014
13.10 Seal Replacement
The top and bottom silicon PTFE coated fabric flat seals which separates Normally they do
not require service or replacement. However should damage occur, or if air leakage is
suspected of causing poor performance, the seal should be replaced adopting following
procedure.
7. Remove rotor from the cassette as explained above.
8. Remove the old seal using knife. Also remove silicon sealant.
9. Clean the plate surface.
10. Apply fresh silicon sealant.
11.
Gently press the seal towards the plate, make sure the seal’s section does not get offset
12. After joining the seal let it dry for 24 hrs.
NOTE: The smooth Teflon coated side of the seal should always on the top and there
should not be any silicon sealant remaining on that side.
13.11 Drive Motor Replacement
Desiccant rotor removal is accomplished by the following:
5. Remove the chain from the drive sprocket.
6. Remove the drive sprocket from the motor shaft.
7. Remove the screws of the motor from the plate.
8. Replace the drive motor.
To re-install drive motor, reverse the above procedure.
13.12 Motor Rotation Signal
To check that wheel rotor is rotating properly and each time a signal to the controller goes, to
ensure that rotor complete its cycle and the limit switch hump has reset the limit switch
provided near the rotor. If the hump is not resetting the limit switch, reset the limit switch toward
rotor.
