10.4 Drive engine maintenance
➤ Carry out maintenance according to the schedules in chapter 10.3.
10.4.1 Coolant cooler maintenance
Material Coolant
Coolant tester
Receptacle
Male hose coupling (supplied loose with the machine)
Funnel
Cleaning cloth
Precondition The machine is switched off and has cooled down.
The machine is standing level.
Air consumers are disconnected,
the discharge valves are open,
the machine is fully vented, the pressure gauge reads 0 psig.
The «Controller ON/OFF» switch is switched off,
the negative cable of the battery has been disconnected.
Danger of scalding from hot coolant!
Serious injuries can be caused by hot coolant.
➤ Allow the machine to cool down before opening the cooling system.
Risk of chemical burns from coolants containing antifreeze!
➤ Avoid eye and skin contact with coolant. In case of contact, rinse immediately with run‐
ning water.
➤ Wear protective glasses and protective gloves.
Insufficient coolant levels can damage the machine!
Insufficient coolant levels will cause the engine to overheat. Overheating can cause serious
damage to the engine.
➤ Check the coolant level daily.
➤ Replenish the coolant as necessary.
➤ Open the left-hand door.
10.4.1.1 Checking the coolant level
The coolant level in the engine cooling circuit must be checked daily prior to start-up.
The level is checked on the coolant expansion tank:
■ The tank is transparent so the coolant level can be seen from outside.
■ The fluid level should be between the
minimum and maximum marks when the engine is cool.
10 Maintenance
10.4 Drive engine maintenance
100
Operator Manual Portable Rotary Screw Compressor
MOBILAIR M55 PE SIGMA CONTROL SMART pV
No.: 902366 10 USE
