1.
Battery destruction!
Topping off with pure acid will increase the electrolyte concentration and can destroy the bat‐
tery.
➤ Top off only with distilled water.
2. Check the electrolyte level.
If the level does not reach the mark -
➤
Top off with distilled water.
➤ Close the canopy.
Winter operation
Batteries are particularly stressed in winter. Only a fraction of the normal starting energy is availa‐
ble at low temperatures.
1.
Danger of batteries freezing!
Discharged batteries are subject to frost damage and can freeze at 14°F.
➤ Check battery charge with a specific gravity tester.
➤ Recharge the battery.
➤ Clean the battery terminals and wipe with grease.
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 heavy-duty cold-start batteries and/or additional batteries is rec‐
ommended.
10.3.7.3 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 is cooled down.
1.
There is danger of batteries bursting!
If a battery short circuits it will overheat and can burst.
➤ Never short circuit a battery (e.g. with a hand tool).
➤ Wear protective gloves and eye protection.
2.
Excessive voltage produced by the alternator.
Voltage peaks can destroy the alternator regulator and diodes.
➤ The battery serves as a buffer and must not be disconnected while the engine is running.
➤ Carry out work on batteries only with the machine shut down.
3. Open the canopy.
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. Close the canopy.
10 Maintenance
10.3 Engine maintenance
128
Operator Manual Screw Compressor
M27
No.: 9_9548 05 USE
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