Stopping The Engine - Graco GH 733 HYDRA-SPRAY Instructions-Parts List Manual

O P ER A TI O N
Starting the Engine
CAUTION
Always open the bypass valve (78) before starting
the engine.
Open the bypass valve (78) and the fuel cock (E). The
bypass valve is open when the lever is parallel to the
screwed out as far as
it
will go. See Fig
3.
body of the valve. The fuel cock is open when it is
Fig
3
, '
w
pull the rope firmly and rapidly to start the engine. If the
engine does not start after one or
two
attempts, try
opening the choke a little further. If the engine floods,
open the choke all the way and continue pulling the
rope.
After the engine has warmed 'up, gradually open the
choke lever
(GI
and close the bypass valve (78). See
Fig
3
and 4. Raise the foot brace and engage the hitch
(34).
In cold weather, run the engine for about 15 minutes
before starting the material pump. This helps to make
sure the hydraulic motor does not stall.
Stopping the Engine
Open the bypass valve (78) and depress the stop button
(J),
holding the button down until the engine stops.
Close the fuel cock (E). See Fig
3.
Flush the Material Pump
Your new unit was tested in oil and the oil was left in to
protect the material pump parts. Before using the
sprayer, flush the pump as instructed below.
1. Pour enough clean, compatible solvent to fill the
system into a large empty metal pail.
2. Place the suction tube into the pail, or
tilt
the unit
back (it will support itself), place the pail under the
pump, then
tilt
the unit forward to lower the pump
into the pail.
Lower the foot brace by disengaging
it
from the hitch
(34). Refer to Fig 3.
3.
Be sure the bypass valve (78) and fuel cock
(E)
are
oDen. Turn the Dressure control knob (F) all the way
.If the engine is cold, close the choke by turning the lever counterclockwise to keep pump from operating.
or the air temperature is high, open the choke half way
( G ) so
it
is horizontal. See Fig 4. If the engine is warm, See Fig
3. Start the engine.
or completely. 4. Close the bypass valve (78). Point the gun into a
metal waste container, holding a metal part of the
gun firmly against the metal pail. See Fig 5.
Squeeze the trigger. A t the same time, slowly turn
the pressure control knob (F) clockwise just enough
to operate the pump. Always use the lowest possi-
ble pressure when flushing the unit. Operate the
pump until clean solvent comes from the gun. Then
release the trigger and engage the trigger safety.
Fig 4 Fig 5
starter rope.
Brace one foot against the foot brace and pull the
CAUTION
Always hold on to the starter rope while pulling or
,rewinding it. If the rope rewinds too quickly,
it
can
jam the starter assembly.
~
then let the rope rewind slowly into the starter. Then
Pull the engine over against the compression stroke and
5. Check all hose connections and fittings for leakage.
If there are any leaks, shut off the engine and
relieve the fluid pressure before tightening the fit-
tings. Then turn the unit on and check to be.sure
the leaks have stopped.
6. Remove the pump or suction hose from the solvent
pail. Trigger the gun to force the solvent out of the
engine. Engage the trigger safety.
hose. Open the bypass valve (78) and shut off the
3 0 7 4 5 '
5