HATZ Diesel 2G40 H - Manual (Page 25)

6. Functional test
6.1. Air filter maintenance indicators
(only on version with Dry-type
air cleaner)
For electrical indicator
33
– Unscrew maintenance switch „2“ then recon-
nect to the on-board electric system.
34
– Turn the ignition key to position I.
1
– Create a vacuum at the maintenance switch
with powerful suction, indicator lamp „1“ must
light up (fig. 33).
– If there is no reaction, check cable connectors
and replace filament lamp and/or maintenance
switch if necessary.
For mechanical indicator
– Unscrew maintenance indicator „3“ (fig. 33).
– Create a vacuum at the maintenance indicator
with powerful suction, the visible red area
must latch in, replace maintenance indicator if
necessary.
– Before putting into operation, unlock mainte-
nance indicator „3“ with reset button „4“
24