Makita DVP181 Instruction Manual page 9

3. Install the two batteries to the pump. (See "Installing
or removing battery cartridge" for the installation
method.)
4. Open the gas ballast valve.
5. Turn the pump on. The LED lamp (RED) lights up
and the motor operates.
6. Open the low side valve and high side valve of the
manifold.
7. Close the gas ballast valve after 5 to 10 minutes.
NOTE: The gas ballast valve is used to remove water
(vapour) and condensable gas (taken into the pump
during exhaust) from oil. If the condensable gas liquifies
and gets into oil, it can cause a decrease in lubricity,
and shorten the service life of the pump and seal. When
the air enters from the gas ballast valve, the condensed
gas remains as it is, and is exhausted with air.
It is recommended to warm up the pump before
operation because the more pump temperature is high,
the higher gas ballast efficiency can be obtained.
8. When the remaining capacity of the battery (on
the Left port) becomes empty, the power supply
automatically changes to the battery (on the Right
port). Remove the battery L, and replace it with
a spare battery. When the remaining capacity
of battery R becomes empty, the power supply
changes to the battery L again. The pump can be
operated for a long time by using the charged spare
batteries repeatedly for L-R-L-R.
WARNING:
The pump becomes hot during
operation and immediately after stopping. Do not
touch the area around pump while it is hot. Doing so
may result in burns or other accidents.
NOTE: The motor may not operate when it is cold (5°C
or less). In these cases, bring the pump indoors and
allow it to warm up.
9. When the specified vacuum (refer to the manual
provided by the air conditioner manufacturer) is
reached, close the low side valve of the manifold.
10. Turn the pump off.
Airtightness test
There are no leaks if the pressure of the manifold does
not rise for 5 minutes or more after leaving the pump and
manifold.
NOTE: When the battery remaining capacity becomes
low, LED lamp goes out and at the same time a long
alarm beep start sounding. About two minutes later
the motor stops. And then alarm beep changes into a
repeated short-time interval beeping which notifies the
motor stop and 30 seconds later the beeping stops.
However, do not wait until the motor stops (or alarm
beep changes to a short-time beeping), and instead
close the inlet valve of the tool and the low pressure
side valve of manifold.
Check that the pump is turned off, remove the battery,
and charge it or replace it with a spare battery.
• Refer to the following table for the battery operation
times.
Operation times (guideline)
Battery
BL1860B
BL1850B
BL1840B
BL1830B
• After finishing work, remove the battery and attach
the supplied cover.
NOTICE:
When transporting, operating and
storing the tool, 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.
Checking the oil
► Fig.7:
1. Level line
• Always check
(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.
9 ENGLISH
Operation times per piece
30 min
25 min
20 min
15 min
2. Sight glass
the oil level and condition