36
D
GB
F
E
I
96389-08.2019-DGbFEIRu
7.1 Preparation
7.2 Work to be carried out
7
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Maintenance
To avoid impermissible operating conditions for the compressor, the following service and
maintenance work must be performed:
Leak test:
regularly, at least once per year
Pressures, current consumption, temperatures, oil level:
annually
Pressure switches, motor protection switches and connection terminals:
annually
Trigger unit INT69 EX2, functional test:
bi-annual
Temperature sensors:
annually
Visible check, noises while running:
monthly
Avoid damage, dirt and dust deposits > 5 mm.
Clean compressor regularly with a damp cloth.
Oil change:
- Not mandatory in factory-produced series systems
- In field installations or when operating near the application limit: for the first time after 100 to
200 operating hours, then approx. every 3 years or 10,000 - 12,000 operating hours
.
Dispose of old oil according to the regulations; observe national regulations.
WARNING
All work must be performed only by:
qualified personnel (see page
4)
with exclusion of any danger of explosion.
Before starting any work on the compressor:
Obtain written work release.
Switch off the compressor and secure it to prevent a restart.
Relieve compressor of system pressure.
Prevent air from infiltrating the system!
After maintenance has been performed:
Connect safety switch.
Evacuate compressor.
Release switch-on lock.
7.3 Spare part recommendation
EX-HG44e / ...
475-4 (S)
565-4 (S)
665-4 (S)
770-4 (S)
Designation
Item No.
Item No.
Item No.
Item No.
Set of gaskets
81547
Set of valve plate
81500
81501
Set of oil pump
81503
