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6.9 Hot water and petrol engine devices
m DANGER
• Only the fuel specified in the operating manual may be
used. There is a risk of explosion with unsuitable fuels.
• When refuelling devices with petrol engines, make
sure that no fuel gets onto hot surfaces.
• Please always observe the special safety instruc-
tions in the operating manual for devices with petrol
engines.
• When operating the device indoors, ensure that
there is sufficient ventilation and that the exhaust
gases are discharged. (Danger of poisoning)
• The flue opening must not be closed.
m WARNING
• Danger of burning! Do not bend over or touch the
flue opening.
6.10 Handling fuel
m DANGER
• Do not operate the high-pressure cleaner if fuel has
been spilled, move the device to another location
and avoid any spark formation.
• Do not store, spill or use fuel near open flames or
equipment such as stoves, boilers, water heaters,
etc. that have a pilot light or produce sparks.
• Keep highly flammable objects and substances
away from the silencer (at least 2 m).
• Do not operate the engine without the silencer and
check it regularly, clean it and replace it if necessary.
• Do not use the engine on wooded, bushy or grassy
terrain without the exhaust pipe being fitted with a
spark arrester.
• Except when making adjustments, do not run the
engine with the air filter removed or without the cov-
er over the intake manifold.
• Do not make any adjustments to governor springs,
governor rods or other parts that may cause an in-
crease in engine speed.
• Danger of burning! Do not touch hot silencers, cyl-
inders or cooling fins.
• Never bring hands and feet close to moving or ro-
tating parts.
• Danger of poisoning! Device must not be operated
in closed rooms.
• Do not use unsuitable fuels as they can be dan-
gerous.
6.11 Safety devices
Safety devices serve to protect the user and must not
be overridden or converted.
6.11.1 Overpressure valve
• When the hand spray gun is closed, the pressure
relief valve opens and the high-pressure pump re-
turns the water to the pump suction side. This pre-
vents the permitted working pressure from being
exceeded.
30 | GB
• The pressure relief valve is set and sealed at the
factory. Adjustments can only be made by the cus-
tomer service.
6.11.2 Thermal valve
• The thermal valve protects the high-pressure pump
against non-permitted heating in circuit operation
when the hand spray gun is closed.
• The thermal valve opens when the water temper-
ature exceeds 55 - 60°C and discharges the hot
water to the outside.
6.12 Residual risks
m CAUTION
Despite intended use, non-obvious residual risks
cannot be completely excluded.
• Injuries due to slipping on sewage
• Injuries or material damage caused by the
high-pressure water jet
7. Technical data
Engine
Type
Displacement
Rated output at
Nominal speed
Fuel tank
Fuel
Oil quantity - en-
gine
Oil type - engine
Spark plug
Water connection
Hose diameter
Max. supply tem-
perature
Max. supply pres-
sure
Pump
Working pressure
Max. working pres-
sure
Max. flow rate
Thermal valve
opening temper-
ature
Input connection
Output connection
Cleaning agents
www.scheppach.com
DHP212
212 cm³
4.3 (5.9) kW (hp)
3600 min
-1
3.6 l
Petrol, unleaded
0.6 l
SAE10W30
F7RTC
13 mm
40 °C
0.5 (5) MPa (bar)
22.1 (221) MPa (bar)
24.1 (241) MPa (bar)
9.5 l/min
55 - 60 °C
G 3/4 (EU)
M22x1.5
Only use cleaning agents
approved for high-pressure
cleaners.
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