The operator must then initiate the
parked regeneration. This results in the compressor being un‐
loaded and the engine can start the regeneration. The process requires approximately 20 to 30 mi‐
nutes and, during this time, the engine can autonomously adjust its speed to arrive at the optimal
operating point for the regeneration.
Because the regeneration will start only at temperatures above 660 °F, it is recommended to
warm up the engine in LOAD before initiating
parked regeneration.
4.8 Sealed floor pan
The machine is fitted with a sealed floor pan catching liquids in the event of leaks.
The drain points for compressor cooling oil and engine coolant are led to a central point outside.
The sealed floor pan:
■ Cannot catch all liquids contained in the machine, but is intended only to capture small
leaks in the vicinity of endangered components.
■ is fitted with de-watering lines closed with plugs. These lines must be tightly re-closed af‐
ter performing any cleaning work.
■ Is equipped with service openings which are closed with bungs. These openings must be
tightly re-closed after performing any cleaning work.
When other components are removed from the sealed floor pan, (for example the sheet metal
cover) they must be properly re-sealed prior to installation.
Position of service openings in the closed floor pan:
Fig. 14 Position of service openings in the closed floor pan
1
Coolant oil drain - oil separator tank - com‐
pressor
2
Airend/oil cooler, coolant oil drain point
3
Engine oil drain
4
Draining line
5
Cleaning opening closed with bung
4.9 Options
The options available for your machine are described below.
4
Design and Function
4.8
Sealed floor pan
46
Operator Manual Portable Rotary Screw Compressor
MOBILAIR M58utility SIGMA CONTROL SMART
No.: 901779 08 USE
