HOTSY 900-1400 OIL FIRED • 8.941-366.0 • Rev. 6/11
17
PRESSURE WASHER
OPERATOR’S MANUAL
MAINTENANCE
WARNING: Unauthorized machine modification or
use of non-approved replacement parts may cause
personal injury and/or property damage and will void
the manufacturer warranty.
IMPORTANT: Machine must be stored indoors.
Pump
Use Hotsy Pump Oil P/N 315068 or equivalent 30W
non-detergent oil for pump crankcase. Crankcase must
be filled to the full mark on the dipstick or to center of
sight glass window found on the rear of the pump. Dur-
ing the break-in-period, make sure the oil is changed
after the first 25 hours of operation. After that, replace
oil every 3 months or 300 hours of operation, whichever
comes first.
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
for details.
Pump Motor
On a yearly basis, oil pump motor per instructions on
motor nameplate.
NOTE: Some motors may be equipped with perma-
nently lubricated bearings and will not require ad-
ditional lubrication.
Relief Valve
WARNING: The relief valve on this pressure washer
has been factory set and sealed and is a field nonad-
justable part. Tampering with the factory setting may
cause personal injury and/or property damage, and
will void the manufacturer warranty.
Unloader Valve
WARNING: The unloader valve on this pressure
washer has been factory set and sealed and is a
field nonadjustable part. Tampering with the factory
setting may cause personal injury and/or property
damage, and will void the manufacturer warranty. For
replacement refer to Pump Assembly page.
Burner Fuel Filter
Drain any water which has accumulated in fuel filter
and clean or replace filter element as needed.
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 des-
caling 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 flow through the
coil, further aggravating the soot buildup. Contact your
local service center when desooting is needed.
Dipstick
Sight Glass
(on Rear of Pump)
Oil Fill
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Страница 33: ...HOTSY 900 1400 OIL FIRED 8 941 366 0 Rev 6 11 PRESSURE WASHER Wiring Diagram 33 WIRING DIAGRAM 1PH 208V 230V ...
Страница 34: ...HOTSY 900 1400 OIL FIRED 8 941 366 0 Rev 6 11 PRESSURE WASHER Wiring Diagram 34 WIRING DIAGRAM 3PH 208V 230V ...
Страница 35: ...HOTSY 900 1400 OIL FIRED 8 941 366 0 Rev 6 11 PRESSURE WASHER Wiring Diagram 35 WIRING DIAGRAM 3PH 460V 575V ...
Страница 40: ......
Страница 42: ...Form 8 941 366 0 Revised 6 11 Printed in U S A ...
