Trigger Operation - Makita GWH01 Instruction Manual

Nozzle functions
NOTE: The standard nozzles may vary depending on
the country. Refer to the section for optional accesso-
ries for other nozzles.
Cyclone jet nozzle
NOTICE:
Do not use the cyclone jet nozzle to
clean fragile surfaces such as windows or car
bodies.
► Fig.7
A spiral jet is ejected. Suitable for removing stubborn
dirt.
Vario spray lance
CAUTION:
When adjusting the jet pressure,
do not rotate the nozzle while pulling it toward the
trigger gun. The nozzle may come off from the trig-
ger gun and cause a personal injury.
CAUTION:
When rotating the tip of the nozzle
to adjust the water jet, do not rotate it forcibly.
Otherwise, the nozzle may break and cause an injury.
► Fig.8
Jet pressure can be adjusted by rotating the nozzle.

Trigger operation

NOTICE:
To avoid mechanical error in the pres-
sure switch, always leave a two-second interval
between trigger operations.
Pull the trigger to eject a water jet. The jet continues as
long as the trigger is squeezed.
The trigger can be locked for safe handling of the trigger
gun. To lock the trigger, pull out the stopper and hook it
to the groove on the grip.
► Fig.9: 1. Trigger 2. Stopper 3. Groove
ASSEMBLY
WARNING:
Always be sure that all the battery
cartridges are removed before carrying out any
work on the machine. Failure to remove all the bat-
tery cartridges may result in serious personal injury
from accidental start-up.
Connecting the high-pressure hose
CAUTION:
Make sure that the high-pressure
hose is securely connected. A loose connection
may blow the high-pressure hose off, resulting in a
personal injury.
Connect the high-pressure hose to the outlet. Turn the
nut on the high-pressure hose clockwise while screwing
it onto the screw thread of the outlet.
► Fig.10: 1. Outlet 2. Nut
Attaching the trigger gun
CAUTION:
Make sure that the high-pressure
hose is securely connected. A loose connection
may blow the high-pressure hose off, resulting in a
personal injury.
Connect the high-pressure hose to the inlet on the
trigger gun. Turn the nut on the high-pressure hose
clockwise while screwing it onto the screw thread on
the inlet.
► Fig.11: 1. Inlet 2. Nut
Connecting to a faucet
CAUTION:
Always use a pressure-resistant
water hose with the following diameters and
connect to the faucet using a proper fittings.
Otherwise, the water hose and/or the fitting may
break and cause personal injury.
• Inner diameter of hose is 14 mm (0.55") to 15
mm (0.59").
• Outer diameter of hose is 20 mm (13/16") or
less.
• Thickness of hose is 2.3 mm (3/32") or more
and less than 3.0 mm (1/8").
NOTICE:
Use a pressure-resistant water hose
as short as possible. The amount of intake water
should be higher than the max feed volume of the
pump.
NOTICE:
If you connect to the mains for drink-
ing water, use a backflow preventer valve which
meets the regulations in your region.
NOTICE:
When connecting to a faucet, the
required water flow rate is 7.0 L/min (1.85 gpm) or
more. If the water flow rate is insufficient, you cannot
obtain the full capability of the machine.
NOTE: The hose assembly ships with coupling
sleeves attached to both ends. When connecting to a
faucet without a coupling sleeve, remove the coupling
sleeve at one end by turning the coupling sleeve in
the direction of the arrow shown in the figure.
► Fig.12: 1. Nut of the coupling sleeve 2. Coupling
sleeve
1. Connect the hose assembly to the faucet. Apply
a suitable fitting such as hose band or water tap joint to
secure the hose end with the faucet.
► Fig.13: 1. Hose band 2. Coupling sleeve 3. Hose
assembly
NOTICE:
Connect the hose assembly to the
faucet securely. Otherwise, the hose assembly may
come off when you open the faucet.
NOTE: The fitting depends on the shape of the faucet
to which you connect. Prepare a suitable commercial-
ly-bought fitting.
2. Attach the water hose connector to the inlet, and then
attach the coupling sleeve to the water hose connector.
► Fig.14: 1. Coupling sleeve 2. Water hose connector
3. Inlet
17 ENGLISH