14
Maintenance
Maintenance And Service
Check List
1.
Check to see that water pump is properly
lubricated.
2.
Follow winterizing instructions to prevent freeze
damage to 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 on your water system, or de-scale
as needed.
5.
Do not allow acidic, caustic or abrasive fluids to be
pumped through system.
6.
Always use high grade quality cleaning products.
7.
Never run pump dry for extended periods of time.
8.
Use clean diesel. Clean or replace fuel filter every
300 hours or 6 months of operation. Avoid water
contaminated fuel as it will damage the fuel pump.
9.
If machine is operated with smoky or eye burning
exhaust, coils will soot up, not letting water reach
maximum operating temperature.
10. Never allow water to be sprayed on or near the
engine or burner assembly or any electrical
component.
11. Periodically descale coils as per instructions.
12. Check to see that engine is properly lubricated.
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 equipment
clean and dry.
The flow of combustion and ventilating air to the burner
must not be blocked or obstructed in any manner.
The area around the Landa washer should be kept
clean and free of combustible materials, gasoline and
other flammable vapors and liquids.
Unloader Valves
Unloader valves are preset and tested at the factory
before shipping. Tampering with the factory setting may
cause personal injury and/or property damage, and will
void the manufacturers 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
outdoors under freezing conditions.
During winter months, when temperatures drop below
32°F, protecting your machine against freezing is
necessary. Store the machine in a heated room. If this
is not possible then mix a 50/50 solution of anti-freeze
and water in the float tank. Turn the engine on to siphon
the anti-freeze mixture through the machine. If
compressed air is available, an air fitting can be
screwed into the float tank by removing the float tank
strainer and fitting. Then inject the compressed air.
Water will be blown out of the machine when the trigger
on the spray gun is opened.
High Limit Hot Water Thermostat
For safety, each machine is equipped with a tempera-
ture sensitive high limit control switch. In the event that
the water should exceed its operating temperature, the
high limit control will turn the burner off until the water
cools then automatically reset itself. The thermostat
sensor is located on the discharge side of the heating
coil. The thermostat control dial is located on the
control panel.
Pumps
Use only SAE 10W -40 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 dipstick found on top of pump,
or the red dot visible through the oil gauge window. Oil
should be maintained at that level.
Cleaning of Coils
In alkaline water areas, lime deposits can accumulate
rapidly inside the heating coil. This growth is increased
by the extreme heat build up in the coil. The best
preventative for liming conditions is to use high quality
cleaning detergents. In areas where alkaline water is
an extreme problem, periodic use of Landa Coil
Descaler (part #8.914-296.0) will remove lime and
other deposits before coil becomes plugged.
Periodic descaling of the heating coil is recom-
mended so please consult your local Landa Dealer
for instructions.
Landa SLT/SLX Diesel Dealer’s Manual 9.807-539.0 - AE
