Manual Hotsy, 700 Series • 9.808-301.0
15
PRESSURE W
ASHER
OPERA
TOR’S MANUAL
MAINTENANCE
If pressure from pump or thermal expansion should ex-
ceed safe limits, the relief valve will open, allowing high
pressure to be discharged through hose to ground
.
Cau-
tion: Inspect relief valve annually for any obstruction
.
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 replace-
ment refer to Pump Assembly.
AVERTISSEMENT : La soupape de décharge sur
cette laveuse à pression a été réglée en usine, puis
scellée, et est une pièce non réglable. L'altération
du paramètre de l'usine pourrait causer des lésions
corporelles et/ou des dommages à la propriété, et
annulera la garantie du fabricant.
ADVERTENCIA: La válvula de descarga de esta
hidrolavadora se ha ajustado y sellado en fábrica y
es una pieza no ajustable en el campo. La alteración
del ajuste de fábrica puede causar lesiones perso
-
nales y/o daños materiales y anula la garantía del
fabricante.
Burner Fuel Filter
Drain any water which has accumulated in fuel filter 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 flow through the
coil, further aggravating the soot buildup. Contact your
local service center when desooting is needed.
Summary of Contents for 797SS
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