How To Use This Manual This manual contains the following sections: The SAFETY section contains important information regarding hazardous or unsafe practices of the • How to Use This Manual machine. Levels of hazards are identified that could • Safety result in product damage, personal injury, or severe •...
Safety Introduction & Safety Information Thank you for purchasing this Pressure Washer. We reserve the right to make changes at any time without incurring any obligation. Owner/User Responsibility: The owner and/or user must have an understanding of the manufacturer’s operating instructions and warnings before using this pressure washer.
Safety Important Safety Information WARNING: Flammable liquids can WARNING create fumes which can ignite, WARNING: If you do not follow these instructions causing property damage or exactly, a fire or explosion may result, causing severe injury. property damage, personal injury or loss of life. WARNING: Risk of explosion —...
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Safety 10. To reduce the risk of injury, close supervision is WARNING: Be extremely careful necessary when a machine is used near children. when using a ladder, scaffolding WARNING Do not allow children to operate the pressure or any other relatively unstable location.
Safety 26. Exhaust gases should not be vented into a wall, a which seats securely against a female seat in the ceiling or a concealed space of a building. A draft POL valve – no pipe dope is necessary. Acme/ diverter must be installed to prevent down draft and Type 1 valves have right handed threads which are to allow cooling of exhaust temperatures.
Operations Installation Electrical Place machine in a convenient location providing The machine, when installed, must be electrically ample support, drainage and room for maintenance. grounded in accordance to local codes. Check for proper power supply using a volt meter; check the Location serial plate for the correct requirements.
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Operations VNG4-2000, 4-3000, 4-4000 Water In 3/4” GHF 45.00" 5.25" 3.50" 18.25" Electric 3.25" High Pressure Out Exhaust Gases 3/8" HP Nipple 10” Dia. 32.25" 14.50" 36.00" 10.00” Dia. 19.50” Dia. 36.00" Mininum Control Panel Gas In 1" NPT-M 47.50" Elect.
Operations Pipe Sizing Chart for Natural Gas ported, installed and used in the proper position. Do not transport, install or use a vertical cylinder in a horizontal The following chart is based on gas pressure in the or upside down position. Proper care must be taken to range 0-0.5 psi, specific gravity of 0.6 and pressure position a horizontal container in the correct position for loss of 0.5"...
Operations Combustion and Ventilation Air Sampling Port and Rain Cap. An adapter can be installed between the collar and stack to adjust the Properly sized vents are vital for the safe and efficient diameter from 10” to 8” or 12” to 10”. operation of a pressure washer installed in a confined space.
Operations Sampling Port A port for sampling flue gases and Before turning gas under pressure into piping, all measuring the flue gas temperature should be placed openings from which gas can escape should be closed. 18” above the flue collar. The port should be covered Immediately after turning on gas, the system should be when sampling is not being performed.
Operations Start Up For Your Safety Read Before Lighting WARNING: Read and follow WARNING WARNING instructions carefully when installing or servicing machine. If you do not follow these instructions exactly, a fire or Failure to do so may result in explosion may result, causing property damage, personal injury or loss of life.
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Operations Check List Before Starting CAUTION! If “NO” has been checked on any of the following sixteen questions, do not operate this machine. Has gas supply been inspected by an authorized contractor to meet local codes? Is machine protected from downdraft and excessive wind? Is machine shielded from moisture or water spray?
Operations Assembly Instructions Safety Pump Switch Discharge Fitting Cold Water Source High High Pressure Spray Garden Pressure Hose Hose Hose STEP 3: Connect garden hose to STEP 2: Connect the high pressure STEP 1: Attach the high pressure the cold water source. hose to the discharge fitting.
Operations Operating Instructions Pump Switch Burner Switch STEP 1: Have an electrician STEP 2: Turn on main gas supply STEP 3: Push pump ‘ON’ switch, or connect power supply into elec- and depress and turn control knob turn to pump position and pull the trical box according to information to the ‘ON’...
Operations Applying Detergent & Thermal Pump Protection General Operating Techniques If you run the engine for 3-5 minutes without pressing the trigger on the spray gun, circulating water in the WARNING: Some detergents may WARNING pump can reach high temperatures. When the water be harmful if inhaled or ingested, reaches this temperature, the pump protector engages causing severe nausea, fainting or...
Operations Shutting Down And Clean Up veil OPER DAÑO Conn ecte à la terre procé disjon cteu ion, coule r l’eau z l’inter rupte . La USAR ONAL mise à l’aide cteur . Le à haute press faites . Mette “ON”...
Operations Preventative Maintenance Call your Local Dealer for Assistance. Tampering with the factory setting may cause personal injury and 1. Check to see that water pump is properly or property damage, and will void the manufacturer's lubricated. warranty. 2. Follow Winterizing Procedures to prevent freeze damage to the pump and coils.
Maintenance Heating Coil 3. With a small screwdriver, rotate the adjustment screw clockwise to increase or counterclockwise to Condensation from Heating Coil decrease gas pressure. When cold water is being pumped into the water heater 4. Replace regulator adjustment screw cap. coil, and the burner is on, condensation will form on the coil and drip down into the burner compartment, giving the appearance of a leaking coil, particularly on cold...
Maintenance Propane Gas Burner Features Operated Automatic Valve General Safety Precautions This machine is equipped with an Intermittent Pilot Have a qualified gas service person assist in any gas Ignition System. This system is designed to eliminate burner installation or service. Few maintenance people the need for a constant burning pilot.
Maintenance Smart Relay Instructions NOTE: When setting time on clock, use only military time. Digital Timer (Optional) The cursor is now positioned on the weekday and The following are instructions on how to set the param- shows the following on the display window (see figure eters on the digital timer in Programming Mode.
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Maintenance Timer 3: 'Reset Delay Timer' NOTE: Ta is the accumulator timer and T is the adjustable timer (the variable that changes) Timer 3 controls how long the pump must run before resetting the ‘Lockout Timer’ (Timer 1). This allows the 5.
Maintenance Factory Set Parameters (Auto Start/Stop with Lockout) TIMER VALUE DESCRIPTION Turns machine off after 4 hours of non-use. To restart push the Timer 1 04:00 Hours ‘Pump On’ switch. Pump will run in bypass for 30 seconds before shutting off, Timer 2 30:00 Seconds machine is still in standby mode.
Maintenance Preventative Maintenance This pressure washer was produced with the best available materials and quality craftsmanship. However, you as the owner have certain responsibilities for the correct care of the equipment. Attention to regular preventative main- tenance procedures will assist in preserving the performance of your equipment. Contact your Landa dealer for maintenance.
Maintenance Troubleshooting - Burner PROBLEM POSSIBLE CAUSE SOLUTION With power switch on, open trigger on spray gun A. No main power and set your test meter to the 24 volt scale. Probe terminals 24V and 24V(GND). If you do not read 24 FLOW &...
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Maintenance PROBLEM POSSIBLE CAUSE SOLUTION Faulty main valve coil in the Set test meter to 24 volt scale. gas valve With pilot flame on ignitor/sensor, probe terminals MV and MV/PV on the ignition control unit. If you Faulty ignitor/sensor and/or read 24 volts here, but not at the gas valve, there its wiring is a loose wiring connection.
Maintenance Troubleshooting PROBLEM POSSIBLE CAUSE SOLUTION Faulty pressure gauge Install new gauge. Use larger garden hose; clean filter Insufficient water supply washer at water inlet. Match nozzle number to machine and/or replace Old, worn or incorrect spray nozzle with new nozzle. Belt slippage Tighten or replace;...
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Maintenance PROBLEM POSSIBLE CAUSE SOLUTION Incoming water to machine Lower incoming water temperature. warm or hot Gas pressure too high Call local gas company. WATER Detergent line sucking air Tighten all clamps. Check detergent lines for holes. TEMPERATURE TOO Defective high limit switch Replace.
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Maintenance PROBLEM POSSIBLE CAUSE SOLUTION Valves worn Check and replace if necessary. Blockage in valve Check and replace if necessary. FLUCTUATING Check water supply and air seepage at joints in PRESSURE Pump sucking air suction line. Worn piston packing Check and replace if necessary. Check water supply and connections on Air in suction line suction line.
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Maintenance PROBLEM POSSIBLE CAUSE SOLUTION Oil seal worn Check and replace if necessary. PRESENCE OF WATER IN OIL High humidity in air Check and change oil twice as often. WATER DRIPPING Piston packing worn Check and replace if necessary. FROM UNDER O-ring plunger retainer worn Check and replace if necessary.
Control Panel Detergent Remote Detergent Inlet Operating System Line 36 - Detergent Line to Pump Steam Inlet Line Pump Steam Line Pump Landa VNG Operator’s Manual 8.913-939.0 - AB...
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Control Panel PART NO. DESCRIPTION NOTES 8.750-094.0 THERMOSTAT, 302° 8.706-162.0 ELBOW, 1/4” FEMALE PIPE 8.918-419.0 HOSE, 1/4” X 36", 2 WIRE GA. 9.802-810.0 WASHER, 5/8” FLAT 9.802-210.0 CLAMP, HOSE, UNI .46 - .54 8.706-958.0 HOSE BARB, 1/4” BARB, 90° 8.707-317.0 VALVE, CONTROL METERING 8.751-916.0 SWITCH GREEN, PUSH BUTTON...
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Control Panel PART NO. DESCRIPTION NOTES 8.712-358.0 NOZZLE, 15055 YELLOW (4-2) 8.712-350.0 NOZZLE, 1504.5 YELLOW (4-3) 8.712-370.0 NOZZLE, 1502 YELLOW 8.712-379.0 NOZZLE, 1509 YELLOW (8-3) 8.712-387.0 NOZZLE, 1515 YELLOW (10-2) 8.712-359.0 NOZZLE, 2505.5 GREEN (4-2) 8.712-351.0 NOZZLE, 2504.5 GREEN (4-3) 8.712-371.0 NOZZLE, 2507 GREEN (6-3)
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Control Panel PART NO. DESCRIPTION NOTES 8.712-150.0 GAUGE, 0-5000 PSI 8.751-915.0 SWITCH, RED, PUSH BUTTON 8.924-843.0 LABEL, VNG CONTROL PANEL, SR 9.802-254.0 36" HOSE, 1/4”, PUSH-ON (SMALL) 40" HOSE, 1/4”, PUSH-ON (LARGE) 8.719-011.0 WASHER, 5/8” STAR 9.802-064.0 GROMMET, RUBBER, NOZZLE 9.802-187.0 VALVE, METERING STEAM 8.918-180.0...
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Electrical Box VNG PART NO. DESCRIPTION NOTES 9.802-759.0 SCREW, 10/32” X 1/2” BHSOC 8.924-858.0 PANEL, ELECTRICAL BOX, SIDE 8.755-622.0 RELAY, SMART, 24V, 8I/4O 9.802-695.0 NUT 10/32 KEPS SEE SPECIFICATIONS CONTACTOR PAGES SEE SPECIFICATIONS OVERLOAD RELAY PAGES 8.924-857.0 BOX, ELECTRICAL VNG 9.804-003.0 SCREW, 1/4”...
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Electrical Box VNG PART NO. DESCRIPTION NOTES 9.802-457.0 10" DIN RAIL 9.802-518.0 STRAIN RELIEF, 3/4” 9.802-793.0 NUT, CAGE, 1/4” X 16 GAUGE 9.802-515.0 STRAIN RELIEF, 1/2” 9.802-525.0 LOCKNUT, 1/2” 9.802-764.0 SCREW, 10/32” X 3/4” HEX 9.803-280.0 LOCKNUT, 1" 9.804-595.0 END BRACKET 8.753-064.0 TERMINAL BLOCK 6.643-249.0...
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Electrical Box VNG PART NO. DESCRIPTION NOTES 9.802-784.0 NUT, 6-32 KEPS 8.718-733.0 SCREW, 6-32" X 5/8" 8.716-449.0 COVER, FUSE PROTECTOR 8.749-977.0 BAR, JUMPER NOT SHOWN 8.753-252.0 TERMINAL BLOCK, END CAP NOT SHOWN 8.716-216.0 HOLDER, FUSE NOT SHOWN 8.716-170.0 FUSE, MDL-1/2 250V NOT SHOWN 8.921-218.0 Q BAR, PLC...
Burner Basic Facts BASED ON 60° F PROPANE BUTANE Formula C3H8 C4H10 Vaporization Point (°F) -43.7 31.1 Specific Gravity (Vapor) 1.522 2.006 Specific Gravity (Liquid) 0.508 0.584 Lbs. Per Gallon (Liquid) 4.23 4.87 B.T.U. Per Cubic Foot (Vapor) 2.563 3.39 B.T.U.
Unloader - MG4000 w/ Microswitch Item 9 Exploded View PART NO. DESCRIPTION NOTES 39.0023 39.0116 KNOB 38.0044 NUT FOR KNOB 35.0006 SPRING RETAINER DISK 38.0007 HIGH PRESSURE SPRING 100 BAR Landa VNG Operator’s Manual 8.913-939.0 - AB...
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Unloader - MG4000 w/ Microswitch PART NO. DESCRIPTION NOTES 38.0006 HIGH PRESSURE SPRING 200 BAR 38.0005 HIGH PRESSURE SPRING 275 BAR 38.0004 HIGH PRESSURE SPRING 310 BAR 38.0128 35.0186 39.0014 YELLOW O-RING 39.0015 RED O-RING 39.0013 BLUE O-RING 39.0012 BLACK O-RING 18.0291 STEM 35.0187...
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Unloader - MG4000 w/ Microswitch PART NO. DESCRIPTION NOTES 39.0097* MEMBRANE SEAL 41.012 ELECTRIC PART 38.0123 FORK 35.0184* NO-RETURN PISTON WITH 0-RING 35.0005 INJECTOR NIPPLE 35.0004 1/4” NUT 35.0146 INJECTOR BODY 36.0161 SPRING 36.0182 BALL 39.0166 O-RING, 5.28X1.78 MM HOSE BARB NIPPLE (FOR ADJUSTABLE 35.0158 INJECTOR) 39.014...
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Unloader - MG4000 w/ Microswitch ITEM 9 PARTS LIST PART NO. DESCRIPTION NOTES 36.0118 STEM 35.0185 NIPPLE 39.0164* O-RING 15.54X2.62 MM 39.0066* BACK-UP RING 39.0161* O-RING 7.6X2.62 MM 39.0132 O-RING 4.48X1.78 MM 35.0214 RETAINING FERRULE 39.0068* BACK-UP RING 39.0163* O-RING 10.78X2.62 MM 39.0065* BACK-UP RING 36.0004...
VB8 Valve VB8 Valve, 9.802-362.0 (5-3027) PART NO. DESCRIPTION NOTES 60.0058.31 DELIVERY COUPL., 3/8F BSP BRASS 10.3070.02 O-RING 1.78 X 18.77 MM NI 85 60.0053.51 SPRING, 0.7 X 9 X 20 MM SST. 60.0052.31 SHUTTER PIN, BRASS 10.3070.02 O-RING, 3 X 6 MM 60.1201.35 HOUSING-BB8, 3/8 M BSP C/SUNK, BRASS 10.3170.08...
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VB8 Valve PART NO. DESCRIPTION NOTES 14.3719.00 WASHER, 9 X 15 X 1, 5 MM SST. 60.1208.61 SPRING, 3.2 X15.4 X 33 MM Z.PL. 60.1210.31 SPRING GUIDING RING 14.7421.50 BALL, 1/4" SST. 60.1209.31 VALVE REGULATING INSERT, BRASS 29.0087.51 U-BOLT, SST. 29.0089.84 HOUSING, PR5 PA BLACK 12.5006.00...
Pump - LT.2 Series TORQUE SPECS ITEM # FT. LBS. PART NO. DESCRIPTION NOTES 8.752-825.0 CRANKCASE PLUNGER OIL SEAL SEE KITS TABLE O-RING Ø1.78 X 37.82 SEE KITS TABLE PRESSURE RING, 18MM SEE KITS TABLE U-SEAL, 18MM SEE KITS TABLE INTERMEDIATE RING, 18MM SEE KITS TABLE U-SEAL, 18MM...
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Pump - LT.2 Series PART NO. DESCRIPTION NOTES 8.707-262.0 BRASS PLUG 3/8 VALVE SEAT SEE KITS TABLE VALVE PLATE SEE KITS TABLE VALVE SPRING SEE KITS TABLE VALVE CAGE SEE KITS TABLE 8.752-830.0 HEX SCREW 9.802-884.0 WASHER 9.803-182.0 CLOSED BEARING HOUSING 9.803-186.0 O-RING Ø2.62 X 71.12 9.803-160.0...
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