MOBILAIR M 58utility stationary portable compressor
Short instructions for operation and maintenance
The operating videos and short instructions presented in this page are for supplementary references only.
The operating and handling instructions as laid down in the KAESER operating manuals remain in full force and effect. When applying the operating instructions presented in this page full compliance with all national safety and environmental regulations is mandatory.
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Preparing the start
Switch on the «Controller ON/OFF» switch.
- The controller boots up and the operating indicators appear on the display.
- The READY indicator flashes if the controller has no fault.
Starting the drive motor
Press the «START» button.
- The drive motor is started.
- The machine is in warm-up phase and runs at IDLE speed
- The machine is ready to be switched to LOAD as soon as the specified airend discharge temperature (ADT) is attained.
Precondition: The setpoint value for the airend discharge temperature (ADT) is reached.
All compressed air outlet valves must be closed.
Press «LOAD/IDLE» key. The engine is run up. The machine switches to LOAD mode and is ready to deliver compressed air.
Compressed air output pressure adjustment
[1] Compressed air discharge pressure setting symbol
[2] Setting value
- Press «UP» or «DOWN» for more than two seconds and release
- The display immediately jumps to the line for "Setting the compressed air discharge pressure". The Settings menu has a flashing frame. - Press the «UP» and/or «DOWN» keys to select the required pressure
- The set value for the compressed air discharge pressure is immediately active and remains saved. - Press «Enter»
- The frame disappears. - Press «Enter»
- Jump back to the menu bar, the "Main menu" symbol receives a black background.
Precondition: All compressed air outlet valves must be closed.
Turn the engine off after the cooling-down phase
- Press and hold the «OFF» key for more than one second
- The machine switches to unloaded run-on
- The engine runs at IDLE speed
- The inlet valve closes
- Oil separator tank (OST) is vented
- The engine switches off, controlled by a timer.
Switch the controller off
- NOTICE! Memory fault! Damage to the machine electronics and/or controller is possible
- Shut down the controller only after the engine control unit has completed its save process. - Wait for approx. 30 seconds until saving is complete.
- Switch off the «controller ON/OFF» key.
Shutting the machine down in an emergency
An emergency can occur with the machine or in its immediate vicinity. Shut the machine down using the «EMERGENCY STOP» button.
Press the «EMERGENCY STOP» button.
- Drive engine stopped
- Machine pressure system vented
- «EMERGENCY STOP» button is locked
- Machine is secured against reactivation
- Check fuel tank level and top up if necessary.
- Engine is not getting any air, therefore check the air filter.
- Engine starter does not turn, please charge the battery.
- Follow the error message on the control panel.
- Check the 4-digit error code in the system error code list.
- Check whether the bonnets and doors of the system are closed during operation.
- Check the installation conditions such as distance to walls or similar.
- Check fluid levels (compressor oil, engine coolant).
- Clean the radiator.
- If necessary, disable the tool lubricant.
- Check compressor oil level for overfilling.
- Apply correct switch-off procedure, unload machine (idling mode) and then switch off.
- With filter combination option: is the condensate drain regularly drained?
- With filter combination option: condensate drain regularly drained?
- Too low machine usage.
| Maintenance intervals
M 44 - M 480* |
Service kit
A 500 h / every year |
Service kit
B 1,000 h / 2 years |
Service kit
C 1,500 h / 3 years |
Service kit
D 3,000 h / 6 years |
| Engine filter SET | x | x | x | x |
| Engine oil | x | x | x | x |
| Compressed air treatment (optional) | x | x | x | x |
| Filter SET (includes Engine Filter SET) | x | x | ||
| Compressor oil | x | x | ||
| Dirt trap | x | x | ||
| Oil separator cartridge | x | x | ||
| AdBlue filter (optional) | x | x | ||
| Antifreeze | x | x | ||
| Engine belt | x | x |