Maintenance - Airpress HL 340/90 Manuel D'instructions

6.0 MAINTENANCE

Before carrying out any maintenance jobs it is obligatory to stop the
machine, disconnect it from the power mains and make sure that the tank is
pressure free by opening the condensation draintap (10).
1. After the first 50 operating hours and then every 250 operation hours the oil
should be refreshed. Turn off the oil drain plug (11) and also remove the filler cap
(13). Collect the oil. If the oil does not come out any longer, switch on the
drainplug again and refill the oil (through fillercap) until the oil has reached the
correct level.
The right oil level is on the red circle on the oil leveler (12, middle of the
glass).
Always respect the regulations in force for disposing of old oil!
2. Regularly drain condensation water. The draintap is situated at the bottom of the
tank (10). Draining with pressure in the tank is the easiest way. Some
compressors have an aftercooler with its own drainplug. Also from this device the
condensationwater should be drained regularly.
Condensate must be disposed of in conformity with the local regulations in
force (not in the sewer!).
As an alternative you can place an oil/water separator.
3. The oil level should also be checked regularly. For the right oil level see point 1. If
necessary refill with compressor oil, order No 36398 (1/2 l) or order No 36380 (2
l). Checking daily can prevent a lot of troubles!
Use oil of the same type as that already in the machine; do not mix different
types of oil!
4. The air filter element (1) should be cleaned or changed regularly. This change
depends on the amount of fouling and should be done more often in dusty
situations and less often in a clean situation. For cleaning the filterelement, take
out the filtercontainer with the filter. Then clean the filter by blowing off the dust.
5. The V-belt should be checked after every 1000 hours. At the right tension, the V-
belt can easily be turned 45 degrees by hand. If tension is too high, strong
corrosion will occur or eventually the
spindle of motor or pump may break. At
too little tension, the efficiency of the
compressor decreases considerably.
Tightening the V-belt goes as follows:
Dismount the belt protector.
Unscrew the fastening bolts on the
motor sledge.
Remove the V-belt.
Place the motor at the right distance
from the pump. Make sure that the
pulley of the motor runs in the same
line parallel with the flywheel on the
pump (see drawing). Tighten the
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