12
1800 SERIES PRESSURE WASHER
OPERATOR’S MANUAL
Hotsy 1800
•
97-6244
Rev. 7/06
maintenance
WARNING: Unauthorized machine modification or use
of non-approved replacement parts may cause personal
injury and/or property damage and will void the man-
ufacturer warranty.
pump
Use Hotsy Pump Oil P/N 315068 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.
(Refer to
figure 9
) During 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 manufac-
turers mix recommendations.
•
Flush the system with clear water immediately after
using detergent solutions.
•
Clean filter screen on detergent inlet line periodi-
cally.
•
Flush the pressure washer system with antifreeze
if storing for an extended period of time; refer to
stor-
age
for details.
pump motor
On a yearly basis, oil pump motor per instructions on mo-
tor nameplate.
NOTE: Some motors may be equipped with permanently
lubricated bearings and will not require additional lu-
brication.
Gas burner
It is recommended that the gas burner be serviced yearly
or as needed. Contact your local service center.
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. For replacement parts
refer to Figure 26.
unloader valve
WARNING: The unloader 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. For replacement refer
to Figure 28.
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 heat-
ing 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 flow through the
coil, further aggravating the soot buildup. Contact your local
service center when desooting is needed.
Figure 9 - Pump Lubrication
dipstick
sight Glass
(on rear of pump)
oil fill
