Makita DVP181 Bedienungsanleitung Seite 10

NOTICE:
When transporting, operating and
storing the pump, never place it on its side or
upside down. This may cause oil leakage from the
oil filler/vent cap.
MAINTENANCE
CAUTION:
Always be sure that the pump is
switched off and the battery cartridge is removed
before attempting to perform inspection or
maintenance.
NOTICE:
Never use gasoline, benzine, thinner,
alcohol or the like. Discoloration, deformation or
cracks may result.
To maintain product SAFETY and RELIABILITY,
repairs, any other maintenance or adjustment should
be performed by Makita Authorized or Factory Service
Centers, always using Makita replacement parts.
Stop the pump:
To make pump life longer and smooth start-up, these
procedures to shut off pump should be followed.
1. Close the manifold valve between the pump and the
system.
2. Remove the hose from the pump inlet.
Cover the inlet port opening to prevent any contamination
or foreign particles from entering the port.
Checking the oil
► Fig.7:
1. Level line
• Always check the
(deterioration, etc.) before using the pump.
NOTE: Add oil until the oil level is between the upper
and lower level lines of the sight glass. The quantity of
oil is 300 ml.
NOTE: The oil level is important. If it is not between the
upper and lower level lines, it can cause malfunction.
Replacing the oil
► Fig.8:
1. Drain valve
1. Operate the pump for 1 or 2 minutes to warm up the
oil.
2. Turn the pump off.
3. Remove the drain valve and drain the oil.
4. Refer to "Adding oil" and add new oil.
• Dispose of the old oil in accordance with local
regulations.
NOTE: It is recommended to change the oil after
20 hours of usage to protect pump components from
contaminants pulled into the pump.
When vacuuming on old refrigeration systems, change
the oil after every usage.
2. Sight glass
oil level and condition
Vacuum pump oil:
The condition and type of oil used in any high performance
vacuum pump are extremely important in determining
the ultimate attainable vacuum. It is recommended to
use the High Performance Vacuum Pump Oil, which is
specifically blended to maintain maximum viscosity at
normal temperatures and to improve start up under cold
weather.
Cleaning the pump
1. When the oil is extremely dirty, replace the oil and
then operate the pump for 3 to 5 minutes.
2. Drain the oil and add new oil.
If the drained oil is still dirty, repeat this cleaning
process two or three times.
10 ENGLISH