Maintenance - Makita DVP180 Instruction Manual

4. Open the inlet valve.
5. Turn the pump on. If the pressure of the manifold
indicates a vacuum of -0.09 to -0.1 MPa within
30 seconds, the pump is operating properly.
6. Turn the pump off.
Operation
► Fig.7:
1. Vacuum pump
2. Intake shut-off valve
3. Charging hose
(yellow)
4. Manifold
5. Low side valve
1. Connect the pump, manifold and outdoor unit with
hoses.
NOTE: When the size of the service port on the unit is
1/4", use the supplied different diameter adapter.
2. Check that the high side and low side valves of the
manifold are closed.
3. Install the battery to the pump. (See "Installing
or removing battery cartridge" for the installation
method.)
4. Turn the pump on. The LED lamp (green) lights up.
5. Open the intake shut-off valve of the pump and the
low side valve of the manifold.
WARNING:
The pump becomes hot during
operation and immediately after stopping. Do not
touch the 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.
6. When the specified vacuum (refer to the manual
provided by the air conditioner manufacturer) is
reached, close the low side valve of the manifold.
7. Close the intake shut-off valve and 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 pump 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.
6. Low pressure gauge
7. High side valve
8. Charging hose (blue)
9. Service port
(Low pressure side)
10. Outdoor unit
Operation times (guideline)
Battery
BL1860B
BL1850 / BL1850B
BL1840 / BL1840B
BL1830 / BL1830B
• After finishing work, remove the battery and attach
the supplied cover.
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.
Transport and storage
• Always drain your vacuum pump of all fluids before
shipping to prevent the damage of the container.
• Always cover the intake port with cap to keep any
dust from entering the pump.
• Be sure that the pump is kept in a horizontal position.
• The pump is stored in indoor ambient temperature
5°C – 40°C .

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.8:
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.
8 ENGLISH
Operation times
75 min
50 min
40 min
30 min
2. Sight glass
the oil level and condition