48
SR 430, SR 450
7.
Servicing the AV System
The blower housing and backplate
are connected by vibration-damping
springs.
Damaged springs must always be
replaced.
The anti-vibration springs are
located between the blower housing
and the backplate.
– Remove the blower housing,
SR 430
10.7,
SR 450
7.1
AV Springs at Rear of
Backplate
:
Hold the AV springs (2) steady in
their seats and take out the
screws (1).
:
Remove the AV springs (2).
0002RA130 TG
2
2
1
1
:
Unscrew the bearing plugs (1)
and (2) from the AV springs.
– Screw home the bearing
plugs (1) and (2) as far as stop.
Installing
:
Line up the preassembled AV
springs (1) so that the
face (arrow) is parallel to the
blower wheel.
– Push the AV springs home as far
as stop.
0002RA131 TG
1
2
0002RA132 TG
1
– Hold the AV springs (2) steady in
their seats.
:
Fit and tighten down the
screws (1) firmly.
– Reassemble all other parts in the
reverse sequence.
0002RA133 TG
2
2
1
1
