HDS 1000 DE
7
Fuel tank
Fill the fuel tank for the engine with diesel.
Caution!
The fuel tank should not be topped up when the engine is running or hot.
There is a risk of fire and explosion.
Do not smoke and keep away from sparks and flames.
Do not spill fuel. Wipe up spilled fuel.
Always close fuel tank and fuel canister properly.
Fuel vapours are poisonous; do not breathe them in.
Lime-scale protection
– Fill container with Kärcher scale-inhibitor fluid, Order no. 2.780-001.
– Inquire about local hardness of water from the supply company responsible or determine it by means
of a water-hardness testing kit, Order no. 6.768-004.
– Install pulse generator in electrical cabinet.
– Operating without lime-scale protection may cause the heating coil to become furred.
Frost protection
If the unit is stored without having been emptied or rinsed thoroughly with a glycol-based antifreeze at
sub-zero temperatures, it will be ruined.
The best form of protection from sub-zero temperatures is to place the unit and accessory (handgun,
spray lance, high-pressure hose) in a covered area protected from frost.
Action of the safety devices
Low-water protection
The low-water protection device stops the burner from switching on when there is insufficient water.
When there is sufficient water supply, the float with magnet is pressed to the right and the magnet
causes the reed contact to close.
Only at this point can the fuel valve open. A strainer stops the low-water protection device from
becoming contaminated and must be cleaned once a week.
Overflow valve
When the handgun is closed, the overflow valve opens and the high-pressure pump feeds the water
back to the suction side of the pump. This stops the maximum permitted operating pressure from being
exceeded. The overflow valve is adjusted by means of lock nuts in the factory.
Safety valve
The safety valve is an additional protection in the high-pressure cleaner against undue high pressure.
It opens, for example, when the handgun is closed in burner mode. The safety valve is sealed.
No change is allowed to be made to its setting.
Pressure switch
The pressure switch switches the burner off if there is a fall below the minimum operating pressure and
switches on again when there is a rise above the minimum operating pressure.
Water hardness
5
10
15
20
25
30
Scale
10
8
7
6.5
6
5.5
Summary of Contents for HDS 1000 DE
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