Graco Inc. 1204E Pressure Washer User Manual


 
CAUTION
B
the pump will result. Always be sure the water
Never run the cleaning
unit
dry. Costly damage to
supply is completely turned on before operating.
Inspect all connections for any leaks. Tighten if
necessary.
Cleaning
For cleaning
with
harsh chemicals,
see
the Chemical
In-
jector Kit manual
801-192.
need to hold the spray nozzle from the surface on a
For cleaning
with
clear water, test the distance
you
will
wood, hold the nozzle about
3
ft
(1
mm) from the sur-
scrap piece of similar material. For soft surfaces such as
face and gradually bring
it
closer, checking to
see
if the
high
pressure spray is damaging the surface. Always
off
the
dirt.
When you have finished cleaning, shut
off
hold the nozzle
at
an angle to the surface and "chisel"
the
unit
and trigger the spray gun to relieve pressure.
1
WARNING
Follow these precautions when removing and
in-
stalling nozzles:
1.
Shut
off
the cleaning unit and trigger the
gun
to relieve pressure. Engage the trigger safety.
2.
Keep the nozzle and the tube pointed away
from you and everyone
else.
3.
Do
not put your hand over the tip to push the
nozzle into place. Grasp
it
from the side and
keep your fingers away from the
tip.
4.
Do
not let anyone
else
touch the spray valve
while you are changing nozzles.
5.
Be
sure the slip ring is pushed forward to lock
the nozzle in place before triggering the spray
gun.
Shutdown
and Care of
Unit
When the unit is not
in
use,
turn
off
the water supply.
When shuning down for the day or weekend, shut
off
the unit, shut
off
the water supply valve, and trigger the
gun
to relieve pressure. Wipe
off
the
unit
with a damp
rag.
Check the filter screen
in
the water inlet connection as
often as necessary, at least
daily.
Do
not operate the
unit with the inlet and filter screen removed.
DO
NOT
try
to adjust the unloader valve or change the
engine speed. Changing these settings may cause
ex-
wasted fuel and increased wear on parts and
will
void
cessive pressure, intermittent unloader operation,
the warranty.
THE
PUMP
MUST NOT BE RUN
DRY
and must be
temperatures.
Use
and store the unit where
it
will not be
drained of water before exposure to freezing
subjected to freezing temperatures. If water does freeze
freeze solution may be pumped prior to cold weather
in
the unit, thaw before trying to start.
A
50%
anti-
storage.
Use
only spray tips that are matched to the unit to avoid
excessive cycling and wear of the unloader valve.
See
ACCESSORIES.
pour hot water on a frozen pump.
A
sudden
I
temperature change may crack .the ceramic
plungers.
I
Do
not pump caustic materials.
Before extended storage, flush the pump with light oil.
Avoid dragging hose over an abrasive surface such as
cement. This causes~excessive wear and shorter hose
life.
Clean the intake line strainer daily.
Lubrication and Care
Fill the pump crankcase to the dot on the oil gauge win-
dow with
25
oz
(0.75
liters) of crankcase oil
(801-144)
or equivalent
SAE
40
weight hydraulic oil with antiwear
and
rust
inhibitor additives. Change the oil after the first
50
hours of operation'and then every
3
months or at
500
hour intervals.
NEVER
alter adjustment or modify the unloader
Altering or adjusting unloader
wi//
not
increase'
erformance of
unit.
"
4
801-238
""
""
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