8.914-357.0 • HOTSY 560SS • Rev. 03/11
11
PRESSURE
W
ASHER
OPERA
T
OR’S MANU
AL
STORAGE & MAINTENANCE
Storage
DANGER: DO NOT store fl ammable liquids (gasoline,
diesel fuel, solvents, etc.) near pressure washer, or in
non-ventilated areas.
Protect from freezing by storing in a heated area, or by
fl ushing the system with antifreeze (use an automotive
engine antifreeze or windshield washer solvent to
antifreeze). To fl ush the system with antifreeze, attach
a short length of hose to the garden hose connector
located on the pump. Place the other end of the hose into
a container of antifreeze. Start machine and allow to run
until antifreeze fl ows from the end of the wand. Squeeze
and release the trigger of the trigger gun several times
to antifreeze the unloader system. Also draw antifreeze
through the detergent inlet line to antifreeze the detergent
system. For added protection after antifreezing, disconnect
the pressure hose from machine and remove the coil drain
plug (refer to
Exploded View
for location). After coil has
drained, replace pressure hose and coil drain plug. If the
pressure washer is not to be used for an extended length
of time, it is recommended that the system be fl ushed with
antifreeze for rust protection.
Maintenance
WARNING: Unauthorized machine modifi cation or
use of non-approved replacement parts may cause
personal injury and/or property damage and will void
the manufacturer warranty.
Pump
Lubrication:
To lubricate pump, use 30W non-detergent
oil for pump crankcase. Crankcase must be fi lled to the
full mark on the dipstick or to center of sight glass window
found on the side of the pump, refer to
Figure 6.
During
the break-in-period, make sure the oil is changed after the
fi rst 25 hours of operation. After that, replace oil every 3
months or 300 hours, whichever comes fi rst.
Proper Pump Care
•
DO NOT
pump acids.
•
DO NOT
allow pump to run dry.
•
Winterize if storing in freezing temperatures, refer
to
Storage
for details.
•
Use a water softener on the water system if known
to be high in mineral content.
•
Use only high quality detergents and follow manu-
facturer’s mix recommendations.
•
Flush the system with clear water immediately
after using detergent solutions.
•
Clean filter screen on detergent inlet line
periodically.
•
Flush the pressure washer system with antifreeze
if storing for an extended period of time, refer to
Storage & Maintenance
for details.
Pump Motor
On a yearly basis, oil pump motor per instructions on
motor nameplate.
Relief Valve
If pressure from pump or thermal expansion should
exceed safe limits, the relief valvek will opent, allowing
high pressure to be discharged through hose to ground.
Caution: Inspect relief valve annually for any
obstruction.
Unloader Valve/ Relief Valve
WARNING: The unloader valve and relief valve on this
pressure washer have been factory set and sealed
and are a fi eld nonadjustable part. Tampering with
the factory setting may cause personal injury and/
or property damage, and will void the manufacturer
warranty. For replacement parts refer to Pump
Assembly.
Burner Fuel Filter
Drain any water which has accumulated in fuel fi lter and
clean or replace element as needed. For replacement
parts, refer to
Burner Assembly.
Heating Coil
Coil Descaling:
In hard water areas, scale buildup within
the heating coil will occur. Scale deposits will decrease
the water temperature rise and may eventually clog the
heating coil. Contact your local service center when
descaling is needed.
Coil Desooting:
Poor grades of fuel oil or inadequate
combustion air will cause heavy soot buildup on the
outside surface of the heating coil. These deposits will
insulate the coil. This will restrict the air fl ow through the
coil, further aggravating the soot buildup. Contact your
local service center when desooting is needed.
Figure 6 - Pump Lubrication
Oil Fill/Dipstick
Sight Glass
Oil Drain
