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Maintenance and repair of the dryer
34
BSP-MT
1-8/D3
Regular maintenance intervals
Note:
If a chamber has been depressurised, e.g. after completion of the ex-pansion
phase, and the pressure remains above 0 bar, the chamber is pressurised by
what is known as ram pressure. This might be due to
◊ blockage at the muffl er(s)
◊ contamination of the perforated plates
◊ spent drying agent or purifying agent
To prevent such malfunctions, regularly service the dryer as described below.
The table provides an overview of the maintenance work to be carried out. The individual
tasks are described in the following pages.
Component
Maintenance task to be carried out
Maintenance interval
daily
12 months
24 months
48 months
See page
Complete dryer
Carry out visual checks and function checks.
•
35
Muffl er
BSP-MT 1-2 :
Clean muffl er, replace if necessary.
•
36
BSP-MT 3-8 :
Muffl ers must be replaced annually and after
each desiccant change.
•
36
Fine fi lter muffl er
(option)
Replace silencer element annually and after
each desiccant change.
•
37
Sensor of optional
dewpoint-sensing
control system
Replace
•
37
Purifying agent
Replace
•
38
perforated plates,
drying agent
Replace.
•
39
Solenoid valves
Replace membrane.
•
42
Solenoid and check
valves
Solenoid valves: Replace membranes and
coils. Check valves: Replace balls and springs.
•
42
Upstream and
downstream fi lter
Please see the enclosed operating instructions for the attached fi lters.
Maintenance work has to be carried out as specifi ed in this document.
