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17

Maintenance

The fuel pressure may need to be adjusted due to 
altitude. For every 500 ft altitude above sea level, the 
boiling point of water goes down 1 °F. At high altitude 
environments, this boiling point change may require the 
heat input to be lowered so the water input does not 
turn to steam earlier than at the factory settings and 
activate the pressure sensors and pressure relief 
equipment when the unit is operated and much higher 
altitudes from factory settings or local dealer site 
settings. Check with your dealer before making local 
site fuel pressure adjustments.

Also, as ambient temperature changes seasonally, the 
fuel temperature in the feed tank and air temperature 
inlet can impact fuel flow. In more extreme tempera-
tures, this local-site adjustment may also require 
different fuel nozzles for fuel inlet temperatures that are 
at seasonal extremes (higher or lower) in locations 
where the temperature changes are beyond moderate 
temperatures of between 40°F and 90°F. Colder 
temperatures will make for a thicker flow and less fine a 
fuel spray while hotter temperatures will make for a 
thinner flow a more fine spray with the same nozzle. 
Consider alternate nozzle configurations from the 
baseline factory-supplied nozzle for operating in such 
temperature extremes if performance is not meeting 
needs with air band and fuel pressure settings alone.

NOTE: When changing fuel pump, a by-pass plug must 
be installed in return line port or fuel pump will not 
prime.

Engine Oil

Kubota recommends engine oil 10W-30 API rating of 
CF or higher.

Burner Nozzle

Keep the tip free of surface deposits by wiping it with a 
clean, solvent saturated cloth, being careful not to plug 
or enlarge the nozzle. For maximum efficiency, replace 
the nozzle each season.

Electrodes Setting

SLT- 6 & 8 (only)

Burner Air Adjustment:

 T

he oil burner on this 

machine is preset for operation at altitudes below 500 
feet. If operated at higher altitudes, it may be necessary 
to adjust the air band for a #1 or #2 smoke spot on the 
Bacharach scale.

To adjust, start machine and turn burner ON. Loosen 
two locking screws found on the air band and close air 
band until black smoke appears from burner exhaust 
vent. Note air band position. Next, slowly open the air 
band until white smoke just starts to appear. Turn air 
band halfway back to the previously noted position. 
Tighten locking screws.

For higher altitudes, the air band opening may need to 
be increased; for lower altitude, the .air band may need 
to be decreased.

For higher humidity, the air band opening may need to 
be increased; for lower relative humidity, the .air band 
may need to be decreased.

For higher ambient temperatures the air band opening 
may need to be increased; for lower ambient tempera-
tures, the air band opening may need to be decreased.

Adjust to your operating location’s environment as-
needed for best smoke spot and performance 
compliant with local, state, and federal regulations.

CAUTION: If white smoke appears from burner 

exhaust vent during start-up or operation, 
discontinue use and read just air bands.
ATTENTION: 

Si de la fumée blanche s'échappe de 

l'évacuation du brûleur pendant le démarrage ou le 
fonctionnement, cesserd'utiliser et réajuster les 
bandes d'air.

NOTE: If a flue is installed, have a professional 
serviceman adjust your burner for a #1 or #2 
smoke spot on the Bacharach scale.

Gun Setting Instructions
(For EHASR Only)

SR-Series gage KNA Part
Number 8.717-379

Landa SLT/SLX Kubota Diesel Operator’s Manual  9.807-540.0 - E

1/16"

5/32" Gap

Nozzle

7/16"

Top View

Side View

89199800-23

Electrode

Summary of Contents for SLT Series

Page 1: ...E INDO ORS Asse mble d in USA Use Appro ved Deter gent Only Conta ins comp onent s from one or more of the follow ing count ries Unite d States China Italy Japan and Thaila nd 8 93 2 96 8 0 MODELS SL...

Page 2: ...tenance Glow Plug When the light is on the engine is being pre heated When the light turns off the engine can be started Low Oil When the light is on it means check the oil level Add oil if needed Bat...

Page 3: ...t Down And Clean Up 13 Maintenance Storage 14 Engine Maintenance 14 Maintenance And Service 14 Unloader Valves 15 Winterizing Procedure 15 High Limit Hot Water Thermostat 15 Pumps 15 Cleaning of Coils...

Page 4: ...e Levels of hazards are identified that could result in product damage personal injury or severe injury resulting in death The OPERATIONS section is to familiarize the operator with the operation and...

Page 5: ...guage by the purchaser owner making sure that the operator comprehends its contents Owner and or user must study and maintain for future reference the manufacturers instructions The operator must know...

Page 6: ...le spraying Safety glasses do not provide full protection 6 Keep operating area clear of all persons WARNING Flammable liquids can create fumes which can ignite causing property damage or severe injur...

Page 7: ...l shut off valve OFF CAUTION Hot discharge fluid Do not touch or direct discharge stream at persons or animals WARNING This machine produces hot water and must have insulated components attached to pr...

Page 8: ...tr me prudence au moment d utiliser une chelle des chafaudages ou toute autre surface relativement instable La zone de nettoyage doit avoir une pente et un drainage ad quats pour r duire la possibilit...

Page 9: ...ump damage 9 80 1 42 7 0 OF F GLST DO NOT OVE RLO AD GEN ERA TOR Units equip ped with optio nal gene rator shou ld not excee d 1000 watts resis tive load See Serv ice Manu al for detai ls CA UT IO N O...

Page 10: ...o insert your choice of pressure nozzle CAUTION Never replace nozzles without engaging the safety latch on the spray gun trigger ATTENTION Ne jamais remplacer les buses sans d abord mettre le disposit...

Page 11: ...807 540 0 E 9 8 01 427 0 OFF GL ST DO NO T OV ER LO AD GE NE RA TO R Unit s equ ippe d with opti ona l gen erat or sho uld not exce ed 100 0 wat ts resi stiv e load See Serv ice Man ual for deta ils...

Page 12: ...op Allow detergent to remain on surface 1 3 minutes Do not allow detergent to dry on surface If surface appears to be drying simply wet down surface with fresh water If needed use brush to remove stub...

Page 13: ...3 Turn engine key switch off Burner Switch 9 80 1 4 27 0 OF F GL ST DO NOT OVE RLO AD GEN ERA TOR Units equi pped with optio nal gene rator shou ld not exce ed 1000 watt s resis tive load See Serv ic...

Page 14: ...r 4 Cover the pressure washer and store in a clean dry place that is well ventilated away from open flame or sparks After Extended Storage CAUTION Prior to restarting thaw out any possible ice from pr...

Page 15: ...erating 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...

Page 16: ...e located on the fuel pump to control the flow of fuel to the combus tion chamber The solenoid which is normally closed is activated by a flow switch when water flows through it When the operator rele...

Page 17: ...not to plug or enlarge the nozzle For maximum efficiency replace the nozzle each season Electrodes Setting SLT 6 8 only Burner Air Adjustment The oil burner on this machine is preset for operation at...

Page 18: ...om each side of coil and tank assembly these bolts are used to fasten tank to chassis 5 Remove fittings connected to the 1 2 pipe nipples from inlet and discharge sides of coil 6 Remove top tank wrap...

Page 19: ...ually Replace High Pressure Nozzle Every 6 months Replace Quick Connects Annually Clean Water Screen Filter Weekly Replace HP Hose Annually Kubota Engine Maintenance Schedule Engine Oil SAE 10W 30 API...

Page 20: ...foaming oil Engine Oil Check daily before first use of your new Power Washer Change pump oil after first 50 hours and every 200 hours thereafter Use SAE 10W 30 API CF rating Cj 4 DateOilChanged Month...

Page 21: ...n X X X Engine overload X X X X X X X Excessive parasitic load X X X Valve lash insufficient excessive X X X X Injection timing out of spec advanced X X X X X Injection timing out of spec retarded X X...

Page 22: ...pressure control valve Rebuild or replace as needed Slow engine RPM Set engine speed at proper specifications Pump sucking air Check water supply and possibility of air seepage Valves sticking Check...

Page 23: ...y Engine altitude The engine is preset for operation at altitudes below 1000 feet above sea level If operated at higher altitudes it may be necessary to contact your local authorized engine sales and...

Page 24: ...place Incorrect fuel nozzle size Contact your local Landa Dealer Insufficient water supplied Check water G P M to machine Restricted water flow Check nozzle for obstruction proper size PUMP NOISY Air...

Page 25: ...s Repair hole Low detergent level Add detergent if needed PUMP RUNNING NORMALLY BUT PRESSURE LOW ON INSTALLATION Pump sucking air Check water supply and possibility of air seepage Valves sticking Chec...

Page 26: ...9 807 540 0 Printed in U S A...

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