VNG/VLP SERIES PRESSURE WASHER
OPERATOR’S MANUAL
11
OPERATING INSTRUCTIONS
1. STOP! Read operator’s manual
before operating this machine.
Failure to read operation and
warning instructions may result
in personal injury or property
damage.
2. Turn all switches off.
3. Review installation instructions.
4. Connect water supply hose to
the inlet connector and turn water on. Check for wa-
ter leaks and tighten as needed.
5. Turn on the main gas supply and turn the gas valve
control knob into the “ON” position (see page 12).
6. Close the steam knob and detergent valve by turn-
ing clockwise and setting the temperature control
knob between 200° - 225°F.
7. Attach the desired high pressure nozzle into the wand
quick coupler by pulling the coupler collar back and
inserting the nozzle. Secure nozzle by pushing the
coupler collar forward.
8. Turn the pump switch on and pull the trigger on the
spray gun to activate the pressure switch which will
then start the machine. When spray gun is closed
more than 15 seconds, a time delay feature will turn
the machine off. Trigger spray gun to start machine.
9. For hot water, push the burner switch to the ON po-
sition and pull the trigger on the spray gun. Sparking
begins, the pilot gas ignites and then the ignitor/sen-
sor will turn the main burner on. Optional remote con-
trol requires the pump switch to be turned ON be-
fore the burner and detergent switches will turn on.
10. To apply detergent, open the detergent valve counter
clockwise making sure that the detergent pick up
tube is in the detergent solution and not sucking air.
On optional remotes the detergent switch needs to
be turned to the OFF position then turned to the ON
position to activate the detergent solenoid.
11. To Stop: Turn the burner switch off and place the
detergent pick-up tube into fresh water. Open the
detergent valve and trigger spray gun allowing de-
tergent lines to be flushed and the burner to cool.
Otherwise, coil damage will result.
12. When steam is needed, remove the side panel and
turn the steam knob counterclockwise. Then turn the
temperature adjustment knob to 275°F.
13. After water has cooled, turn pump switch to OFF
position. If the machine is going to be off for an ex-
tended period of time, put the manual valve on the
gas valve into the OFF position.
14. Turn the water off. Protect from freezing.
PREVENTATIVE
MAINTENANCE
1. Check to see that water pump is properly lubricated.
2. Follow winterizing instructions to prevent freeze dam-
age 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 prod-
ucts.
7. Never run pump dry for extended periods of time.
8. Periodically delime coils as per 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.
GENERAL OPERATING
TECHNIQUES
If dirt comes off relatively easy and no grease and oil are
present, cleaning with cold water will normally suffice.
However, when grease and oil are present, hot water
will greatly speed up the process.
Clean with the spray nozzle a foot or so from the surface
being cleaned. For more difficult cleaning, move the
nozzle in closer.
If the machine is equipped with a shut-off spray gun and
various nozzle patterns, use the wide patterns for easy
soil removal jobs and the narrow patterns on the more
difficult jobs or for tight areas such as cracks and holes.
In most cases, faster results and better detergent economy
will be obtained by applying the detergent and letting it
“set” for a few minutes prior to rinsing. This enables the
detergent to do its soil penetrating and loosening work.
Most cleaning work terminates with a high pressure rinse
as part of the normal cleaning procedure. In some cases,
however, the last operation may be application of a de-
tergent or detergent (sanitizing, for example). After such
work, run the machine for 20-30 seconds to clear pump
and lines.
WARNING
READ OPERATOR’S
MANUAL THOROUGHLY
PRIOR TO USE.
