4.6.5.2 Option lb
Engine air 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 result in serious mechanical damage. Without appropriate preventive measures, the en‐
gine and driven devices can be destroyed. Explosion or fire are also possible.
When flammable gas is drawn into the engine, shutting off the fuel supply will no longer stop the
engine. 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.
4.6.6 Option ne
Fuel de-watering filter option
A fuel de-watering filter has been installed in order to remove water from the fuel in the event of
reduced fuel quality.
4.6.7 Option oe
Closed floor pan option
The machine is fitted with a closed 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.
4.6.8 Option oa
Optional battery isolating switch
The «battery isolating switch» disconnects the battery completely from the machine's electrical sys‐
tem (fire protection, battery discharge protection).
NOTICE
Danger of short circuit!
Damage to the machine electrics 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
No.: 9_9548 22 HCE
Operating Manual Portable Rotary Screw Compressor
MOBILAIR M27 PE
51