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| User Manual
Maintenance and repair of the dryer
36
BSP-MT
1-8/D3
Maintenance work to be completed every 12 months
Check air quality
Especially for critical applications, we recommend to annually check the quality of the pro-
cessed medical breathing air (this check should be carried out by a qualifi ed authority).
Check muffl ers
The dryer is either equipped with a standard muffl er or a fi ne fi lter muffl er. If the respective
muffl er becomes blocked, a dam pressure is generated which in extreme cases may cause
the muffl er to burst.
Hazard caused by blocked muffl er!
Blocked muffl ers can cause a dangerous overpressure to build up which may
cause the muffl ers to burst. Flying fragments may cause personal injury and
damage to property.
Therefore, muffl ers must be checked at least once a year and cleaned
(BSP-MT 1-2 ) or renewed (BSP-MT 3-8 ) if they are contaminated.
Warning against sudden air ejection!
During expansion the pressure is released suddenly through the muffl er:
◊ A loud cracking noise occurs which can injure your hearing.
◊ Particles carried in the air fl ow act like bullets and can injure your eyes or
skin.
Always wear eye and ear protection, therefore, when you are in the vicinity of
the dryer!
The correct procedures for all muffl er versions are described below.
Clean or renew standard muffl ers
Depressurise the dryer and shut it down
(see page 30 ).
Unscrew muffl er as shown in the opposite
fi gures:
— ..BSP-MT 1-2
= Pos. A,
— ..BSP-MT 3-8 = Pos. B
BSP-MT 1-2
— ..Blow out with compressed air for cleaning
— ..or renew muffl er, if necessary.
Undo muffl er
BSP-MT 3-8
Muffl ers must be replaced annually and after each desiccant change.
Screw sound absorber tight again.
Restart dryer (see page 31 ).
