Position of oil level sight-glass on GA 75 VSD and GA 90 VSD
Position of the service indicator on GA 75 VSD and GA 90 VSD
Check the oil level during operation: the pointer of level gauge (Gl) must register in the green range; if not,
press stop button (9).
Close air outlet valve (AV) and press the test button on top of the electronic water drain until the air system
between the air receiver and outlet valve is fully depressurised (see sections Introduction and Condensate
system for their location).
Instruction book
2920 1634 04 85