4.6.4.2 Option lb
Engine air intake shut-off valve
Any flammable gas drawn into the diesel engine's air intake alters and enriches the controlled
fuel/air mixture fed to the engine. This causes a sudden and uncontrolled increase in engine speed
that can lead to serious mechanical damage. Without appropriate preventive measures, the engine
and compressor can be destroyed. Explosion or fire are also possible.
When flammable gas is drawn into the engine, shutting off the fuel supply will not stop the engine
right away. Only by shutting off the air intake can the engine be brought to an immediate stop.
The self-closing valve shuts off the engine air intake as soon as flammable gas is drawn in. This
brings the engine to an immediate stop.
4.6.5 Option ne
Fuel de-watering filter option
A fuel de-watering filter is installed to remove water from the fuel to prevent lower quality fuel
reaching the pump.
4.6.6 Option oe
Sealed floor pan option
The machine is fitted with a sealed floor pan.
In the event of a leak, all liquids required for the machine's operation are caught in the floor pan.
Service openings in the floor pan are closed with plugs. These openings must be tightly re-closed
after performing any cleaning work.
4.6.7 Option oa
Battery isolating switch option
The «battery isolating switch» disconnects the battery completely from the machine's electrical sys‐
tem (fire protection, battery discharge protection).
Danger of short circuit!
Damage to the machine electrical components is possible.
➤ Use the «battery isolating switch» only when the machine is shut down.
➤ Do not use the «battery isolating switch» as a main or emergency switch.
4
Design and Function
4.6
Options
50
Operator Manual Screw Compressor
MOBILAIR M27
No.: 9_9547 13 USE
