1700 SERIES PRESSURE WASHER
OPERATOR’S MANUAL
9
Hotsy 1700
•
97-6419 • Rev. 7/06
General WashinG
techniQues
1. Hold spray nozzle a foot or so from the surface being
cleaned. Spray at an angle to get under the material
and lift it off.
2. When washing large objects, use detergent injector
to apply detergent. Start washing from the bottom
and work up. Allow the detergent to set a few min-
utes. After washing, rinse from the top down.
3. Cleaning heavy dirt or material away with a hard
stream of clear water is recommended before using
a cleaning agent.
maintenance
pump lubrication
The pump on your 1700 Series pressure washer is a
triplex ceramic plunger pump. As the plungers move
back, water flows through the inlet valve into the mani-
fold chamber. Then, when the plungers move forward,
the inlet valves close and the discharge valves open to
produce discharge pressure.
Use only SAE 30 weight (non-detergent oil); change oil
after first 50 hours of use. Thereafter, change oil every
three months or at 500 hour intervals. Oil level should
be checked through the use of the dipstick found on top
of the pump, or half way up on the oil gauge window. Oil
should be maintained at that level.
unloader valves
The unloader valve is connected directly to the discharge
port of the pump. Its purpose is to allow recirculation
back into the pump inlet when the trigger on the spray
gun is closed.
nozzles
Each machine is equipped with four spray nozzles de-
pending on the flow and pressure of that particular model.
Spray nozzles vary in bore size and angle of spray. When
ordering replacement nozzles, please specify size and
angle of nozzle. Nozzle size for each machine is located
on the serial plate.
Winterizing procedure
Damage due to freezing is not covered by warranty.
Use the following cold weather procedures whenever
the washer must be stored or operated outdoors under
freezing conditions.
During winter months, when the temperature drops
below 32°F, protecting your machine against freezing
is necessary. A blowout valve is available which can be
screwed on in place of the garden hose to blow water
out of the system. When compressed air is not available
or impractical, siphon a small amount of antifreeze into
the machine and siphon a 50/50 mixture of antifreeze
into the pump. Run the pump dry for a few seconds and
disconnect all hoses to allow water to drain.
low pressure diagnosis
Refer to Troubleshooting Chart for low pressure. If, by
referring to the chart, the trouble is found to be either
the unloader or the pump, your next step is to determine
whether in fact the unloader or the pump is the problem.
This can be done by eliminating the unloader from the
system and attaching the discharge hose directly to the
pump. If high pressure is developed in this manner the
pump is good, and the unloader needs to be repaired
or replaced.
CAUTION: When using this procedure to test com-
ponents, keep the spray gun open at all times.
