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OPERATION
Startup
1..
and setup instructions.
Before starting, be sure to read the safety warnings
Turn on the water supply.
Trigger the gun to release any back pressure.
CAUTION
Never run the cleaning unit dry. Costlydamage
to the pump will result. Always be sure water
supplyiscompletelyturnedonbeforeoperating.
Inspect all connections for any leaks. Tighten if
necessary.
Cleaning
For cleaning technique, see the Chemical lniector
manual,
801
-1
92.
For abrasive cleaning, see the Water Sandblaster
manual,
801
-1
90.
Follow these precautions when removing and
installing nozzles:
1.
Shut off the cleaning unit and trigger thegun
to relieve pressure. Engage the trigger safety.
2.
Keep the nozzle a.nd the tube pointed away
from you and everyone else.
3.
Do
not put your hand over the tip
to
push the
keep your fingers away from the tip.
nozzle into place. Grasp
it
from the side and
4.
Do
not let anyone else touch the spray'valve
while you are cleaning nozzles.
5.
Be
sure the slip ring
is
pushedforward to lock
the nozzle in place beforetriggering thespray
gun.
.
Shutdown and
Care
Of
Unit
When unit is not
in
use, turn off water supply.
When shutting down for the day or weekend,
shut
off
unit, shut off water supply valve, and trigger gun to
release pressure. Wipe off the unit with
a
damp rag.
CAUTION
overheat if left running for over
10
minutes
spraying. for longer pump life. The pump
will
as often as necessary, at least daily.
Do
not operate
Check the filter screen
in
the water inlet connection
the unit with the inlet and filter screen removed.
DONOTtrytoadjusttheunloadervalveorchangethe
engine speed. Changing these settings may cause
excessive pressure, intermittent unloader operation,
wastedfuelandincreasedwearonpartsandwillvoid
the warranty.
PUMP MUST NOT BE RUN
DRY
and must bedrained
of
water prior to exposure to freezing temperatures.
Use and store the unit where it
will
not be subjected
to freezing temperatures.
If
water does freeze
in
the
solution may be pumped prior to cold weather
unit, thaw before trying to start. A
50%
anti-freeze
storage.
Use only spray tips that are matched to the unit to
avoid excessive cycling and wear of the unloader
valve. See Accessories.
temperature change may crack the ceramic
pour hot water on a frozen pump. A sudden
plungers.
Do
not pump caustic materials.
Before extended storage, flush the pump with light
oil.
Avoiddragginghoseoveranabrasivesurfacesuchas
cement. This causes excessive wear and shorter
hose life.
Clean the intake line strainer daily
Lubrication and Care
Fill pump crankcase to dot on oil gauge window with
25
02.
(0.75
liters)
of
crankcase
oil
(part
no.
801
-1
44)'
or equivalent SAE
40
weight hydraulic oil
with
antiwear and rust inhibitor additives. Change initial
fill after
50
hour running period. Change oil every
3
months or at
500
hour intervals.
WARMING
I
NEVER
alter adiustment or modifv the unloader
1
I
valve.
I
Altering or adjusting unloader willnot increase
performance of unit.
4
801-457
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