ResMed VPAP III, VPAP III ST, VPAP III ST-A Service Manual page 46

3 The locking plate can then be removed from the chassis,
Locking plate
while the front muffler seal can also be removed from the front cowl.
Front muffler seal
4 Slide the locking plate onto the chassis and place the chassis in the front cowl.
5 Connect the chassis to the front cowl with the four screws.
Caution
Thread cuttings screws are used in the front muffler seal. When replacing a thread cutting
screw, turn the screw anti-clockwise until it fits into the previously cut thread, otherwise the
!
original thread may be stripped out.
5 Replacing major subassemblies 45