Early error message on the measuring head
The VN2020 service box is needed in order to set the negative pressure.
(Schaller Order No.: 151906)
Section 14 Accessories for VN2020 / VN2020 EX
The negative pressure to be set at the measuring head is 60 mmWC
5 mmWC.
Please comply with the safety instructions in Section 6.5 for the work
described below.
Section 2.4 Basic safety instructions
To ensure the device functions correctly after setting the device pressure,
make sure that at least one crankcase cover of the engine is open to
prevent any influence of crankcase pressure on intake pressure.
Risk of injury from setting the intake pressure
The intake pressure of the oil mist detector is set by adjusting the filter control
valve and may only be adjusted when the engine is at a standstill.
To prevent the risk of injury, the negative pressure at the measuring head
must be set within the specified limit values:
55 ≥ mmWC ≤ 65