Water Supply - Graco Hydra-Clean 1235 Instructions-Parts List Manual

Water
Supply
CAUTION
pump, check your local plumbing code
Before connecting the water supply to the
regarding cross-connection to thewater supply.
A backflow preventor. Part No. 801-133, is
contaminated water intothefreshwatersupply.
available to prevent the back flow of
Install upstream from the pump.
temperature.
DO
NOT exceed 160°F (7OOC) inlet water
Higher' temperatures will damage the pump
packings.
A. Check flow rate of the water supply.
I t
must
be a t least
4
gpm or the pressure washer will
not develop full pressure.
6. To check flow rate, time how long
it
takes to
fill a standard five gallon pail;
it
should take
no longer than 1 minute and 15 seconds.
Electrical Supply
7. Connect electrical cord to the proper power
supply. The electrical service required is single
phase,
230V. 60 Hz
AC, 20 Amp. Electrical
service must include a ground wire. If an
extension cord is used,
it
must have a ground
wire and be at least
No.
12 gage wire. Extension
cord must not be over
100
feet long.
START-UP
Use this procedure each time you start the pressure
to operate and that you start
it
safely.
washer to help ensure the pressure washer is ready
1. Check pump oil level. Look at oil level indicator
window through inspection hole in side of the
hood.' Pump also has a dipstick located under
hood on top of pump. Oil level should be up to dot
on oil level indicator window and
within
the
detergent oil as necessary. (SAE 30-weight non-
notch on dipstick. Add
SAE 20 or 30-weight non-
detergent oil is preferred.)
2.
Connect pressure washer to water supply and to
proper electrical service as described
in set-up.
3.
Turn water supply on and trigger the gun until
water sprays from the tip and all air is purged
from the system.
4. Turn switch on control panel to "ON"
5. Always engage the gun's trigger safety latch
to reduce the risk of fluid injection or splashing
in
whenever you stop spraying. even for a moment,
the eyes or on the skin if the
gun
is bumped or
triggered accidentally.
6. Most pressure washer spraying is done at full
pressure. If a reduced pressure
is
desired for a
special application, there are two methods to
washer.
reduce the maximum output from the pressure
a. Turn the pressure control knob on the
unloader counterclockwise, as needed. This
consistently at a reduced pressure.
method is best if you are operating
b. Turn chemical selector valve to the
"OFF"
the end of the spray wand, as needed. This
position, then open the adjustable nozzle on
a
special application.
method is best to quickly reduce pressure for
when the ,spray gun is in use. Be sure that the
DO
NOT attempt to adjust the adjustable nozzle
safety latch on the gun is in the
"ON" position
before adjusting to avoid seriousbodilyinjuryor
7. Always observe the following cautions to help
avoid costly damage to your pressure washer.
CAUTION
DO
NOT allow the pressure washer to idle for
with a thermal relief valve to help avoid the
more than 10 minutes. The unit is equipped
recirculating water from becoming too hot and
seriously damaging the pump, but it is a good
not spraying or cleaning at least every 10
idea to turn the pressure washer off if you are
minutes.
damage the pump. Be sure the water supply is
DO NOT
run the pump dry, which will quickly
fully turned on before starting the pump.
DO NOT operate the pressure washer with the
abrasive sediment out of the pump, which could
inlet screen removed. This screen helps keep
clog or scratch the pump.
DO NOTpumpcaustic materials; such materials
may corrode and damage the pump components.