TRUPER LAGAS-4000 4000 PSI Pressure Gas Pressure Washer User Manual

October 30, 2023
TRUPER

TRUPER LAGAS-4000 4000 PSI Pressure Gas Pressure Washer User Manual
TRUPER LAGAS-4000 4000 PSI Pressure Gas Pressure
Washer

Technical Data

Code 12910
Description Gas Power Washer
Engine Capacity 420 cc 4-stroke
Motor Rated Power 10.5 Hp
Speed 3600 RPM
Type of Fuel Gasoline
Fuel Tank Capacity 1.3 gal
Oil Deposit 37.1 oz
Maximum Pressure 4 000 PSI
Maximum Flow 3.6 gpm
Water Flow Maximum Temperature 104 °F
Noise Level 86 dB

Fuel Specifications

  • The equipment is built with an air-cooled 4-stroke motor using pure unleaded gasoline.
  • Under any circumstance mix oil with fuel.
  • WARNING For any reason, do not use fuels mixed with ethylic alcohol (gasohol) ethanol, or methane. They may attract humidity causing separation and acid build up while being stored. Acidity can damage the motor fuel system when stored.
  • To prevent issues with the motor drain the fuel system before storing the equipment 30 days or longer. Drain the gasoline tank. Start the engine and let it run until the fuel and carburetor lines are empty. Next time of use, use fresh gasoline.
  • Never use motor or carburetor cleansing products into the gasoline tank. Permanent damage is caused.

General safety warnings for motor tools

**Keep your work area tidy and with good lighting.


**CAUTION Cluttered and dark areas can cause injuries.

Never use the mixer in explosive environments or where there are flammable liquids present.

DANGER
Set the mixer 30 ft. away from the fuel filling up areabefore starting the motor

Keep children and passersby at a safe distance while the mixer is operating.

WARNING
Distractions can make you loose control and cause accidents.

Avoid making contact with power lines and circuits.

DANGER
  Find and avoid all power lines and circuits, especially hidden wiring. Also keep away from grounded objects.

Stay always alert, be prudent and use common sense.
CAUTION
Even tough you are familiar with the use of the mixer do not get distracted while operating the machine. It can cause accidents.

Do not operate the mixer when tired or under the influence of drugs, alcohol or medication.
DANGER
A moment of distraction while operating the mixer can cause severe personal injury.

Use the mixer with the guards and protector installed and in good repair.
WARNING Failure to comply with this warning leads to severe personal injury

Never force the concrete mixer.
WARNING
  Working within the range designed assures a belter job and is safer.

Keep your hands away from the rotating or moving parts.

WARNING
Failure to comply with this warning leads to severe personal injury

Do not use the mixer in enclosed areas.

To prevent accumulation of carbon monoxide, an odorless toxic gas potentially deadly

Use the right personal protection equipment.
CAUTION Using eye protection, anti-dust masks, non-skid safety shoes, helmet, hearing protection and safety gloves considerably reduce the risk of injury
Symbols

Turn off the mixer before adjusting, changing accessories or storing.
WARNING Double-check the mixer motor switch is in the OFF position

Never run the mixer if the switch is not working or is not duly assembled.
WARNING
The operator is exposed to severe injury. Take it to repair immediately to a TRUPER Logo  Authorized Service Center.

Do not overreach.
CAUTION Good footing and balance give better control of the mixer in unexpected situations.

Prevent unintentional starting.

WARNING
Double-check the mixer motor is OFF before leaving or servicing.

Remove any vise fixed in the mixer before starting it.
DANGER Additional tools or wrenches fixed in a rotating part in the mixer can cause severe personal injury.

Service the mixer and double-check it is in the best conditions before starting it.

CAUTION Check carefully the moving parts. See alignment and assembly. Do it periodically. Look for damaged elements or part that is not functioning correctly. Repair immediately in a TRUPER Logo Authorized Service Center

Accessories.
DANGER Use only accessories or spare parts indicated in this Manual o certified by.

Never smoke near fuel.

DANGER Do not smoke near the area where fuel is being supplied or when operating the mixer.

Safety warnings for Gas Pressure Washers

Fuel Handling
  • Never smoke near the fuel, nor the supply area or when operating the tool.
  • Reduce the risk of fire or burns. Handle fuel with care. It is extremely flammable.
  • Prevent gasoline or oil come into contact with your skin.
  • Protect your eyes. Prevent gasoline or oil spilling into your eyes. In case of accidental contact wash your eyes immediately with clean water. If irritation persists, visit your doctor.
  • Store fuel in an approved container.
  • WARNNG Before refueling the tool turn off the motor, set it on clear floor and wait for the motor to cool down.
  • CAUTION Wipe clean all the fuel that dripped in the tool before operating.
  • CAUTION To prevent fire or burns look for fuel  leaks. If there are any correct them before using the tool.
  • Set the tool at least 30 feet away from the refueling site before starting the motor.
  • Never ever burn spilled fuel to eliminate it.
  • Under no circumstance use a different type of fuel different to the one specified in these instructions.
When Operating the Power Washer
  • WARNING Wear eye protection.
  • CAUTION Before starting the or when operating the tool verify the nozzle is not pointing towards people or animals.
  • Keep all body parts away from the muffler. It produces severe burns.
  • Keep the tool away from flammable materials.
  • Do not try to make adjustments to the tool while the motor is running.
  • Stay alert of everything around you. The tool noise could prevent you to make out hazards.
  • When spraying always use both hands to gain total control over the high-pressure gun.
  • WARNING Never touch the nozzle or the water jet while the machine operating.
  • To allow free air circulation while the tool is running DO NOT cover the pressure washer.
  • WARNING Never aim the water jet towards the tool.
  • Prevent the high-pressure hose getting tangled, make contact with sharp edges or hot surfaces, crushed or stepped on.
  • Do not drag the pressure washer on top of the hoses.

Before Operating the Pressure Washer

  • To assure it is perfectly assembled double-check the tool is in perfect conditions. Do not start it if is not well adjusted or not fully assembled, or if the fuel tank shows leaks or loose screws.
  • Double-check the tool surface is clean, dry and free of oil r fuel.
  • Verify the work area is open and well ventilated.
  • During extreme temperatures inspect there is no ice build-up or condensation in the tool.
  • Visibility and light conditions shall be adequate. Otherwise do not operate the tool.
  • CAUTION Bear in mind that pressure spraying is very powerful. It is not recommended using onto painted or wooden surfaces or on things stuck with adhesive.
  • Check instructions and warnings regarding chemical products. Do not use bleach, chlorine or any other cleaning product containing acid.
  • To minimize the amount of water that could enter into the pressure washer while running, set the machine as far as possible from the area about to be washed.
  • Check the high-pressure hose. If damaged, please replace it immediately.
  • To prevent water flow to be cut due to twisting untangle and straighten the hoses in full.
After Operating the Tool
  • CAUTION Always move the Tool with the motor OFF and the muffler away from the body. Before loading into the back of a vehicle empty the fuel tank.
  • WARNING Turn off the motor before setting it idle. DO NOT leave the motor running unattended. Leave the tool cooling-off before storing.
  • CAUTION The tool service and repairs shall only be carried out by highly trained personnel.
Assembly Recommendations
  • WARNING In the event there are some parts missing, do not run the tool until they are replaced. Otherwise can cause severe personal injury.
  • WARNING Do not try to modify the tool or produce accessories not recommended for this machine. Otherwise severe personal injuries can happen and makes the warranty void.
  • WARNING Whenever you need to gain access to the mobile parts disconnect the spark plug cable to prevent an accidental start causing severe personal injury

Parts

Parts

Assembly

Assembly
Assembly

  • Fix the wheels set passing the axis (A) through each wheel (B) and its respective mounting orifice (C) into the chassis. Secure with the pin (D) and the washer (E).
  • Install the high-pressure holders and the metal rod into the chassis as shown in the figure.
  • Assemble the metal rod (F) to the high-pressure gun (G) threading in a clockwise direction, the gun to the high-pressure hose (H) and the hose to the pump ( I ). These as fast connections.
  • Close the garden hose faucet (J) fully. Connect the garden hose to the garden hose inlet (K). To connect and prevent kinking the garden hose turn the connection knob.
  • Use care no to thread the connections unevenly to prevent pressure loss.
  • Once the connection is set and WITHOUT touching any nozzle (L) in the metal rod open all the way the garden hose faucet. Tighten the high-pressure trigger until a constant water flow is out from the metal rod. The purpose of this movement is to purge the system from air bubbles.
  • If using detergent into the pressure washer, connect the detergent hose to the connection M.

Fuel and Oil

Oil Supply
  • Set the Pressure Washer on a flat and leveled surface.

  • Close the fuel valve (A).

  • Turn and remove the oil cap (B).

  • Use four-stroke motor oil. Using SAE 10W-30 oil for general use and for all temperatures. As is indicated in the following table other viscosities can be used when the average temperature in your vicinity is within the indicated range.
    Oil Supply

  • Clean the oil measuring rod (B) with a clean cloth to check oil level.

  • The oil deposit has an approximate capacity of 37.1 oz Pour oil gradually and wait a couple of minutes to allow the oil to settle into the motor.

  • Insert the oil level measuring rod into the orifice and check if the oil is in the maximum level.

  • In the event the level is below the minimum level add oil until it reaches the maximum level in the rod.

  • WARNING Checking oil level regularly is advisable.

  • When the oil in the tank reaches the right level indicated in the rod, set the cap back (B) and tighten to prevent leaks.

  • CAUTION Do not exceed the maximum oil level because it causes smoke coming out through the muffler que the motor stars.

  • CAUTION Check oil level before each use. Add oil if necessary when it is between the limits in the oil measuring rod.

  • CAUTION Replace oil after 20 hours’ operation. In dusty or dirty conditions, it could be necessary changing oil more often.
    Oil Supply

Fuel Supply

Fuel Supply

  • Set the Pressure Washer on a flat and leveled surface.
  • Clean and dry the area around the fuel cap.
  • Remove the fuel cap (D).
  • Using a funnel fill slowly the fuel tank up to the lower part of the tank neck. Do not overfill to allow fuel expansion and prevent spillage (E).
  • Clean any fuel spills.
  • Cover the tank rotating the cap until hearing a click.
  • Clean any spilled fuel before starting up

Start Up

Switch ON

Switch ON

CAUTION Before starting the gas pressure washer please pay attention to the following. Failure to comply with this note could damage the machine and make the warranty void:

  • All the hoses shall be connected, completely untangled and not presenting kinks.
  • Water supply shall be connected and fully open.
  • Gasoline and oil levels shall be the correct ones.
  • The system shall be purged out of air bubbles. (see page 7).
  • Open the fuel valve (E).
  • Switch it on (F).
  • Move the choke lever to the “START” position (G1).
  • Move the throttle lever (I) to the left, to the high-speed position.
  • Pull the jack-line (H) until the motor starts but no more than 6 times. Whenever pulling the jack-line release it gently into its original position. Do not allow it to snap back.
  • After the motor runs a couple of seconds. Then move the choker lever into the “RUNNING” position (G2).
  • **CAUTION** In case the motor is not starting afterpulling out the jack-line, tighten the high-pressure gun trigger to release water pressure before trying to star the motor again.
Switch OFF
  • Release the gun trigger to stop the pressure jet.
  • Move the accelerator lever ( I ) to the right into the low speed position.
  • Switch off the switch.
  • Close the fuel valve.
  • Close the garden hose faucet.
  • Press the high-pressure gun trigger to release pressure.
High Pressure Gun Operation

High Pressure Gun Operation

  • To open the water flow keep the high-pressure trigger (A) depressed.
  • To stop the water flow release the trigger.
  • To prevent accidentally starting the machine separate the trigger lock until is blocked in the slot (B). To release the lock turn it to its original position.
Nozzle Selection
  • Depending on the job to carry out, the gas pressure washer carries different nozzles for different flow openings:
    Nozzle Selection
Spray Nozzle Assembly

Spray Nozzle Assembly

  • CAUTION Before assembling or removing a nozzle in the metal rod, turn off the Pressure Washer, close the water supply, press the trigger to release the pressure and lift the gun trigger lock. Failure to comply with one of these points exposes the operator to severe injury.
  • CAUTION When assembling and removingnozzles prevent from pointing the metal rod towards your face. The nozzles fast connection system could accidentally throw it and injure the operator.
  • To assemble the nozzles push the fast connection ring (J).
  • Set the nozzle in the metal rod.
  • Pull the fast connection ring to secure the nozzle in lace (K).
  • To disassemble the nozzle, push the fast connection ring and pull the nozzle to release it.

Operation

Use of Detergent
  • The Pressure Washer is built to use detergents specified for “descending flow” gas pressure washers.
  • CAUTION Use only detergents designed for gas pressure washers. Household detergents, acid, alkaline, bleach, solvent flammable or industrial grade solutions can damage the pump. Many detergents call for mixing before using. Prepare the mix following the instructions in the bottle. Always test in a less noticeable area before starting to pressure wash.
  • Connect the detergent hose as indicated in page 7.
  • Remove the detergent container cap and insert the detergent hose end with the container filter. NOTE The gas pressure washer uses a 20:1 proportion of detergent. It usually is a 1 gallon undiluted detergent. See the instruction in your detergent to verify if is necessary to make an additional dilution.
  • Set the detergent nozzle (black) in the spraying pipe.
  • Press the trigger and wait approximately 5 seconds for the detergent to start being sprayed.
  • Spray the detergent in a dry surface using long, uniformand overlapped passes. To prevent stripes to appear, do not leave the detergent drying in the surface.
  • After spraying detergent in the work surface and before rinsing, set the end of the detergent hose with the filter into a bucket with clean water and expel the water with the high-pressure gun during two minutes to remove from the system all the detergent residues.
  • Turn off the motor and press the trigger to pressure-purge the water.
Rinsing
  • Remove the detergent nozzle and replace it with the high-pressure nozzle most suitable for the job.
    CAUTION Follow the nozzle assembly and removal instructions and how to select the most adequate nozzle in page 10.

  • Remove the detergent hose from the gas pressure washer.

  • Start rinsing from the upper side of the work area. Use side-to side passes, overlapping each pass up and down.

Moving the Gas Pressure Washer
  • CAUTION Never use the handle to lift the gas pressure washer. Never set the unit in a position other than vertical and sitting on its wheels.
  • Turn off the gas pressure washer.
  • Tilt the unit towards you until is balanced on its wheels. Then, push it to the desired position. Do not tilt forward or sideways while moving it.
  • CAUTION DO NOT try to move the unit pulling from either of the hoses.
High Altitude Operation
  • At high altitude the air fuel mix in the standard carburetor will be rich in fuel. Performance will be lower and fuel consumption will increase.
  • Performance while in a high altitude can be increased if the carburetor is regulated adjusting the main knob. The equipment is set to operate at heights above 6000 feet above sea level. If the tool is not working efficiently call a TRUPER Logo Authorized Service Center to have them carry out modification in the carburetor.
  • Even though the carburetor has an adequate injection thepotency in the motor will decrease 3.5% approximately per each 1000 feet increment, after 6890 feet above sea level. Decrease in potency will be higher if there are no modifications in the carburetor.
  • WARNING If the equipment is operated in a height that is inadequate to the carburetor setting, low performance, over-heating and severe damage to the motor caused by the excessive air mix in the fuel may be obtained

Maintenance

  • CAUTION Use only TRUPER Logo original spare parts.
  • When servicing or repairing the Pressure Washer use eye protection complying with ANSI Z87.1.
  • CAUTION Before servicing the Pressure Washer, shut off water supply, shut off the motor, press the trigger to release pressure, disconnect all the hoses, disconnect the spark plug cable and set it apart.
  • CAUTION Failure to comply with any of the previous points exposes the operator to severe injury or damage the Pressure Washer thus making the warranty void.
General Maintenance
  • Use a clean cloth to remove dirt, dust, oil or grease from the unit.
    CAUTION Refrain from using detergent when cleaning the plastic parts. Use care not to make contact of the plastic parts with fluid like brake fluid, gasoline, other petroleum-based products, penetrating oils, etc. Otherwise the plastic could damage, it would alter the unit operation and expose the operator to severe injury.

  • Periodically double-check the bolts, nuts and screws to be firmly tightened.

  • Periodically check the filter to make sure is clean.

  • Verify oil and fuel levels to fill up when necessary.

  • Check the jack-line. If frayed, replace it immediately in a TRUPER Logo Authorized Service Center.

Nozzle Cleansing
  • Nozzles can get partially obstructed due to residues,thus increasing pressure in the high-pressure gun. This issue can be detected if there is constant pulsating when pressing the trigger.
  • To solve this issue turn off the Pressure Washer and remove the nozzle as indicated in page 10.
  • Using a paper clip, remove the obstruction from the nozzle.
  • Set the nozzle in the front end of the garden hose. Open the faucet so that the water flow goes through the nozzle in an inverse sense and releases the rest of dirt.
  • Connect back the nozzle into the metal spear.
Air Filter Cleansing
  • Check the air filter once a month to make sure it is in good repair. Remember, a dirty filter can cause trouble when the motor is started, loss of performance and shorten the useful life of the motor.
  • Uncover the air filter cover loosening and removing the wing nut.
  • Using a damp cloth clean inside and out the filter cover. Do not allow dust to enter into the carburetor.
  • Remove the sponge air filter and rinse it with clean water.
  • Press the filter lightly to remove the excessive water.
  • Apply a thin layer of motor oil to the filter. Let it drip.
  • Set the filter in place. Double-check it sits perfectly into the compartment. Otherwise, dust will enter the motor and cause premature wear.
  • Set the filter cover back in place. Tighten the wing nut
Oil Change
  • Set an approved oil container under the unit.
  • Uncover the oil tank inlets and remove the hex screw in the lower side of the motor. Drain the oil into the container.
  • Before filling up again, set and tighten the hex screw and follow instructions in page 8.
Spark Plug Maintenance
  • Before removing the spark plug clean the area around the spark plug base to stop dust or debris enter into the motor. Remove the spark plug.
  •  Clean the carbon deposits from the spark plug electrodes. Use a spark plug cleaner or a wire brush.
  • If you find the old one is worn or using it again is doubtful replace the spark plug using an identical LG F7RTC spare plug.
  • Verify the gap between electrodes. It shall be 0,027” to 0,031”. If necessary, adjust the gap by carefully bending the earth connection electrode.
  • Verify the spark plug joint.
  • Set the spark plug in place. Thread it and tighten by hand.
  • Tighten with a wrench to compress the washer. If it is a new spark plug, give it a 1/2 turn to press the washer in an adequate manner. If using an old spark plug give it an 1/8 to 1/4 turn to compress the washer properly.
    CAUTION Use care to adjust the spark plug correctly. Otherwise the motor can get too hot and get damaged.
Pump Maintenance
  • Make a visual inspection of the pump every day. If noticing oil loss around the pump seals, take the Pressure Washer to a TRUPER Logo Authorized Service Center to be repaired.
  • Do not try to repair or alter the pump. Otherwise the Pump Washer could get damaged and the warranty will be void.
Long Term Storage
  • Connect and open the water supply. Keep the unit running until running out of fuel. Remember, gasoline gets spoiled after 30 days even with the recommended stabilizer.
  • After all the fuel is gone and the motor stops, turn off the switch and disconnect all the hoses, see they are empty and roll without twisting while the motor cools off (approximately 30 minutes).
  • Empty the pump. Pull the manual start jack-line handle 6 times approximately.
  • Replace oil as indicated in page 12.
  • Disconnect the spark plug and remove it. Pour less than a spoonful of 4-stroke clean motor oil through the spark plug orifice, into the combustion chamber.
  • Having the spark plug removed pull the manual start jack-line two or three times to cover the insides of the cylinder wall.
  • Service the plug before installing it back as indicated in page 12. Leave the spark plug cable disconnected.
  • Clean the air filter as indicated in page 12.
  • Store the unit and accessories in an area under a roof, well ventilated and protected from freezing temperatures. Using an adequate cover is recommended if stored in low temperatures. Do not store it near furnaces or other heat sources because it makes the pump seals dry.
Using the Unit After Long Term Storage
  • Pull the start jack-line three to four times to clean the oil from the combustion chamber.
  • Remove the spark plug from the cylinder. Clean the oil in the spark plug and set it back into the cylinder.
  • Connect the spark plug cable.
  • Fill up as indicated in page 8.

Periodic Maintenance| Before each use| Every 20 h| Every 50 h| Every 100 h| Every 300 h
---|---|---|---|---|---
General Overview| | | | |
Oil Inspection| | | | |
Oil Change| | | | |
Water Filter Inspection| | | | |
Pump Oil Change| | | | |
Cleaning Spark Plug| | | | |
Cleaning Air Filter| | | | |
Replace air filter| | | | |
Adjust spark Plug Electrodes| | | | |
Replace Spark Plug| | | | |
Verify and Adjust Valve*| | | | |

Troubleshooting

Problem Cause Solution
The motor will not start
  • No fuel.
  • Water Pressure in the hose.
  • Defective or inadequate spark plug.
  • Disconnected or damaged spark plug cable.
  • Ignition system is not working

|

  • Fill up the fuel tank.
  • Press the trigger to release water pressure before starting the motor.
  • Replace spark plug.
  • Connect the cable or replace if worn.
  • Go to a Authorized Service Center

Trouble starting the motor.|

  • There is water in the gasoline.
  • Weak spark in the spark plug.

|

  • Drain the whole system and refill with new fuel.
  • Go to a Authorized Service Center.

There will not power in the engine.|

  • The air filter is dirty

|

  • Clean or replace the air filter

Detergent is not mixing in the spray|

  • The detergent hose end is not submerged into the detergent.
  • A high-pressure nozzle is installed.

|

  • Submerge the whole detergent hose filter into the detergent container.
  • Use the black nozzle to apply detergent.

The pump will not generate pressure|

  • The detergent nozzle is installed.
  • Water supply is inadequate.
  • Wrong hose and high-pressure gun connection
  • Clogged nozzle.
  • Air in the hoses.
  • Leaks in the hose.
  • Twisted hose.
  • Choke in the start position.
  • Defective pump

|

  • Replace the nozzle with a high-pressure nozzle.
  • Connect adequately the garden hose to the Pressure Washer and open the water supply all the way.
  • Verify and correct all the connections.
  • Unclog the nozzle as indicated in page 11.
  • Press the trigger to purge the air from the system.
  • Replace the hose
  • Stretch, untangle and untwist the hose.
  • Set the choke in the Gear position.
  • Go to a Authorized Service Center.

The unit will not reach high pressure.|

  • The garden hose diameter is too small.
  • Water supply is restricted.
  • There is not enough water inlet.
  • The detergent nozzle is installed.

|

  • Replace the hose. Use a 3/4”
  • Double-check the garden hose to stretch bends, leaks or blockage.
  • Open the water supply all the way.
  • Replace the nozzle. Use a high-pressure nozzle

Authorized Service Centers

In the event of any problem contacting a Authorized Service Center, please see our webpage www.truper.com to get an updated list, or call our toll-free numbers 800 690-6990 or 800 018-7873 to get information about the nearest Service Center.

AGUASCALIENTES

DE TODO PARA LA CONSTRUCCIÓN
GRAL. BARRAGÁN #1201, COL. GREMIAL, C.P. 20030, AGUASCALIENTES, AGS. TEL.: 449 994 0537

This product is guaranteed for 1 year. To make the warranty valid or purchase parts and components you must present the product in Corregidora 22, Col. Centro, Alc. Cuauhtémoc, CDMX C.P. 06060 or at the establishment where you purchased it, or at any Truper® Service Center listed in the annex to the warranty policy and/or in www.truper.com . Transportation costs resulting from compliance of this warranty will be covered by For questions or comments, call 800-690-6990. Made in China. Imported by Truper S.A. de C.V. Parque Industrial 1, Parque Industrial Jilotepec, Jilotepec, Edo. de Méx. C.P. 54257

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