Ryobi P731 - Manual (Page 9)

9 — English
OPERATION
DUAL HOSES
See Figures 3 - 4, page 12.
The inflator has two hoses for two types of inflation. The
high pressure hose is for inflating high pressure items like
tires and sports balls. The low pressure hose is designed for
inflating or deflating low pressure, high volume items like air
rafts, mattresses, and floats.
NOTE: Pressure gauge and preset features are relative only
to high pressure hose applications.
POWER SWITCH
See Figure 5, page 13.
Place the power switch in the (I) position to turn on the low
pressure pump or the (II) position to turn on the high pres-
sure pump. Place the switch in the (O) or center position to
stop all pump operations.
DIGITAL GAUGE
See Figure 6, page 13.
The digital gauge is multifunctional serving as a pressure
gauge, monitoring the amount of pressure being applied to
the item being inflated, and changing air pressure measure-
ment units from PSI to BAR to kPa.

Press the mode button to turn on the digital gauge.
NOTE: Make sure digital gauge is set at 0 before use. If
gauge reads “Err” or needs resetting, press and hold the
mode button for 4-7 seconds.
 Select desired measurement unit (PSI, BAR, kPa) by
pressing and releasing the mode button. Press once for
PSI, twice for BAR, and three times for kPa.
NOTE: After preset pressure has been set, pressure
setting stays in the gauge memory for 180 seconds. To
recall the previous pressure setting for up to 180 seconds
after inflation, press the (
+ ) or ( - ) button. To reset preset
pressure, press and hold the mode button.
 Position air chuck clamp in the unlock position perpen-
dicular to the high pressure air hose.
 Place air chuck on valve stem.
 Push air chuck down so that the threaded section of the
valve stem is inside the air chuck.
 Clamp the end of the air chuck down onto the valve
stem by pressing air chuck clamp down until it stops or
is parallel with the high pressure air hose.
NOTE: The pressure readout on the gauge while inflating
is a measurement of the fluctuating pressure between the
item and the high pressure hose. To get an accurate read-
ing, stop inflating and follow above instructions for reading
the air pressure.
AUTOMATIC SHUTOFF
The digital gauge will remain on for up to five minutes. To
manually shut off, press and hold the mode button until the
light turns off then release the button.
INFLATING WITH THE LOW PRESSURE HOSE
See Figures 7 - 8, page 13.
The low pressure hose is used to inflate low pressure items,
such as air mattresses, pools, and floats.
NOTE: A pinch valve adaptor comes as part of the small
inflatable nozzle assembly that is attached to the end of the
low pressure hose. The pinch valve adaptor is used for items
that have a smaller air opening or pinch valve. Insert pinch
valve adaptor into pinch valve, insuring that the tip of the
adaptor is inserted past the inner “flap” inside the valve. When
inflating, ensure that the tip is not blocked during inflation.

Align the slots in the hose with the pins on the sides of
the inflator.
 Turn the hose clockwise as far as it will turn.
 Press the low pressure (I) switch to start inflating.
 When the desired pressure is reached, turn the switch
off.
 Remove the hose by turning it counterclockwise as far
as it will turn and removing it from the inflator.
 Store the hose in hose wrap on the left side of the product.
CAUTION:
Always leave low pressure hose free of obstructions and
with pinch valve adaptor off when not in use. Overheating
could occur low pressure hose is blocked.