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2. Check the battery charge weekly.
Recharge as necessary.
3. If the machine is to be unused for a number of weeks, remove the battery and store in a frost‐
proof room.
In extreme cases, the use of a heavy-duty cold-start battery and/or an additional booster bat‐
tery is recommended.
10.4.9.3 Battery removal and installation
Precondition The machine is shut down.
The machine is standing level.
The machine is fully vented, the pressure gauge reads 0 psig.
The machine has cooled down.
The «battery isolating switch» is off.
1.
There is danger of batteries bursting!
A short circuited batty heats up quickly and can burst.
➤ Never short-circuit a battery (e.g. with a hand tool).
➤ Wear gloves and eye protection.
2.
Excessive voltage produced by the alternator.
Voltage peaks can destroy the alternator regulator and diodes.
➤ The batteries serve as a buffer and must not be disconnected while the engine is running.
➤ Perform work at batteries only when the machine is switched off.
3. Open the left-hand door.
4. Disconnect the negative cable first, then the positive cable.
5. Unscrew the battery fixing clamp.
6. Replace in the reverse order.
7. Make sure the battery is properly secured.
8. Switch on the «battery isolating switch».
9. Close the door.
Battery replacement
If the battery is to be replaced, the new battery should have the same capacity, current rating and
shape as the original battery.
➤ Always replace a battery with one of the same type.
The old battery is hazardous waste and must be disposed of in accordance with local envi‐
ronment protection regulations.
10.4.10 Checking the fastening of the fuel tank
The machine is equipped with a fuel tank or tanks. These are fastened with lashing strips and
ratchets.
10 Maintenance
10.4 Engine maintenance
128
Operator Manual Screw Compressor
M114 SIGMA CONTROL SMART
No.: 901765 05 USE