Periodic Maintenance AVL 4000
1-2 Service Manual
1.2 Maintenance Plan
To ensure that the tester always functions properly, maintenance must be carried out at
regular intervals.
Maintenance work
Daily
Weekly
Six-monthly
(minor maintenance)
One a year
(major maintenance)
Comment
Entry in main-
tenance log book
Leak test
Automatically required
by tester every day
Filter replacement
Pre-filter on probe
Particulate filter
Condensate filter
Activated carbon filter
Replace in good time
when soiled by HC
vapour (e.g. petrol
vapour).
Cleaning
Probe and hose
see Operating Manual
Condensate pump
(cleaning kit)
see Operating Manual
Calibration with calibrating
gas
as per statutory requirements
Replacing O
2
sensor
Replacement is
requested by tester
Replacing NO sensor Replacement is
requested by tester
Visual check of outside
Check using software
Service engineer
Software update (as required)
Service engineer
Open tester, visual inspection
of PCBs, clean, close housing,
seal with service seal
Service engineer
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