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Startup
Before startino. be sure to read the safetv warninos and
setup instruct7ons.
Check the oil and gasoline levels daily
I
Turn on the water supply.
Trigger the gun to release any back pressure
ltVA
8
I?]
I
ihl
G
or triaaered oosition.
Set the choke and open the fuel valve.
NOTE:
For easier starting, hold the gun trigger open
while pulling the rope.
when you'pull the starter rope. Hold the gun in your left
Put your foot on the frame or wheel to steady the unit
hand with the trigger open while starting the engine.
two
or three feet (1 m). Repeat if necessary with the
Grasp the starter rope grip and rapidly pull out the cord
choke opened slightly. When the engine starts, im-
mediately release the gun trigger. Open the choke
gradually.
ICAUTION1
Never run the cleaning unit dry. Costly damage to
the pump will result. Always be sure water supply
is completely turned on before operating.
necessary.
Inspect all connections for .any leaks. Tighten if
Cleaning
For Hvdra-Clean technique, see the Chemical lnjectnr
)2
.
manual.
801-190.
For abrasive cleaning, see the Water Sandblaster
stalling nozzles:
Follow these precautions when removing and in-
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 cleaning 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 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.
4
801.191
~~
r
CAUJION
Shut
off
cleaning unit when not actually spraying,
for longer pump life. The pump will overheat if left
running for over 10 minutes without spraying.
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.
engine speed. Changing these settings may cause ex-
DO
NOT try to adjust the unloader valve or change the
wasted fuel and increased wear on parts.
cessive pressure, intermittent unloader operation,
PUMP MUST NOT BE RUN
DRY
and must be drained
of water prior to exposure to freezing temperatures. Use
freezing temperatures. If water does freeze in
the
unit,
and store the unit where
it
will not be subjected to
thaw before trying to start. A
50%
anti-freeze solution
may be pumped prior to cold weather storage.
excessive cycling and wear of the unloader valve. See
Use only spray tips that are matched to the unit to avoid
ACCESSORIES.
CAUTION
pour hot water on
a
frozen pump.
A
sudden
temperature change may crack the ceramic
plungers.
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
Change the engine oil after every 100 hours of opera-
tion. Drain oil with engine warm. Engine requires
1
quart
(0.96
liters)
30W
oil. See separate instruction
manual for maintenance procedures.
Fill pump crankcase to dot on oil gauge window with
25
oz.
(0.75
liters) of crankcase oil (part no. 801-1441 or
equivalent
SAE
40
weight hydraulic oil with antiwear
and rust inhibitor additives. Change initial fill after
50
500
hour intervals.
hour running period. Change oil every
3
months or
at
NEVER
alter adjustment
o
valve.
Altering or adjusting unloader will
not
increase
performance
of
unit.
Service of the unloader must be performed only