Spray Nozzles; Unloader Valves; Winterizing Procedure; High Limit Hot Water Thermostat - Kärcher Landa VLP Series Operator's Manual

Preventative Maintenance
1. Check to see that water pump is properly
lubricated.
2. Follow Winterizing Procedures to prevent freeze
damage to the pump and coils.
3. Always neutralize and flush detergent from system
after use.
4. If water is known to be high in mineral content, use
a water softener in your water system or de-scale
as needed.
5. Do not allow acidic, caustic or abrasive fluids to be
pumped through the system.
6. Always use high grade quality Landa cleaning
products.
7. Never run pump dry for extended periods of time.
Shut off timer will be set for two minutes.
8. Periodically descale coils. Contact Landa dealer for
instructions.
It is advisable, periodically, to visually inspect the
burner. Check air inlet to make sure it is not clogged or
blocked. Wipe off any oil spills and keep this equipment
clean and dry.
The areas around the Landa washer should be kept
clean and free of combustible materials, gasoline and
other flammable vapors and liquids.
The flow of combustion and ventilating air to the burner
must not be blocked or obstructed in any manner.
NOTE: Pump damage may occur if ran in bypass
longer than two minutes.

Spray Nozzles

Each machine is equipped with one or more spray
nozzles, depending on model. Different spray nozzles
are calibrated for each machine depending on the flow
and pressure of that particular model. Spray nozzles
vary in bore size and angle of spray. Popular spray
angles are 0°, 15°, 25°, 40°. When ordering, please
specify size and angle of nozzle. Nozzle size for each
machine is located on the serial plate.

Unloader Valves

Unloader valves are preset and tested at the factory
before shipping. Occasional adjustment of the unloader
may be necessary to maintain correct pressure.
Landa VNG Operator's Manual 8.913-939.0 - AB
Call your Local Dealer for Assistance. Tampering with
the factory setting may cause personal injury and
or property damage, and will void the manufacturer's
warranty.

Winterizing Procedure

Damage due to freezing is not covered by warranty.
Adhere to the following cold weather procedures
whenever the washer must be stored or operated under
freezing conditions.
During winter months, when temperatures drop below
32°F, protecting your machine against freezing is
necessary. Siphoning a small amount of antifreeze into
the system is recommended. This is done by pouring a
50:50 mix of antifreeze and water into the float tank and
then siphoning 100% antifreeze through the detergent
line with the pump on. If compressed air is available, an
air fitting can be screwed into the float tank strainer
fitting and by injecting compressed air, all water will be
blown out of the system. The use of a draft diverter will
prevent the wind chill factor from freezing the coil.

High Limit Hot Water Thermostat

For safety, each machine is equipped with a high limit
control switch. In the event the temperature of the water
should exceed its operating temperature, the high limit
control will turn the burner off until the water cools.

Pumps

Use only SAE10W-40 weight non-foaming oil.
Change oil after first 50 hours of use. Thereafter,
change oil every year or at 500 hour intervals. Oil
level should be checked through use of the dipstick
found on the top of the pump or by the red dot
visible through the oil gauge window. Oil should be
maintained at that level.
Operations
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