NAKAYAMA NS2610 Stroke Gasoline Sprayer Instruction Manual

: September 29, 2024
: NAKAYAMA

Table of Contents

NAKAYAMA NS2610 Stroke Gasoline Sprayer
SAFETY INSTRUCTIONS
Technical Data
PREPARATION
STARTING THE ENGINE
OPERATION
STOPPING THE ENGINE
MAINTENANCE – STORAGE
TROUBLESHOOTING
WARRANTY
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NAKAYAMA NS2610 Stroke Gasoline Sprayer

SAFETY INSTRUCTIONS

Warning : Read the manual carefully before operating the sprayer. Failure to follow the warnings and instructions may result in damage to the sprayer, physical injury and/or damage to property. Store the manual in a safe place for future reference.
Operator responsibility

Be sure that anyone who operates the sprayer receives proper instruction.
Do not let children operate the unit without supervision.
Do not refuel the tank with pure gasoline (always use a mix of two-stroke engine oil and gasoline).
Do not allow persons under the influence of alcohol or other substances to use the equipment.
Keep children and pets away from the sprayer when it is in operation.

Carbon monoxide hazard

Exhaust gas contains poisonous carbon monoxide, a colourless and odourless gas, breathing the exhaust gas can cause loss of consciousness and may lead to death.
If you run the unit in areas that are confined, or even partially enclosed, the air you breathe could contain a dangerous amount of exhaust gas.

Fire and burn hazard

The exhaust system can ignite some materials.
- Keep flammable materials away from the engine.
The exhaust muffler becomes very hot while the engine is running and remains hot for a while after stopping the engine. Be careful not to touch the exhaust muffler while it is hot. Let the engine cool before storing the engine indoors.
Gasoline is extremely flammable and explosive under certain conditions. Do not smoke or allow flames or sparks where the engine is refuelled or where gasoline is stored. Refuel in a well-ventilated area with the engine stopped.
Fuel vapours are extremely flammable and may ignite after the engine has started. Make sure that any spilled fuel has been wiped up before starting the engine.
Store fuel in containers specifically designed for this purpose.
Never remove the fuel tank cap or refuel while the engine is running.
Never store the equipment with gasoline in the tank inside a building where fumes can ignite a fire.
Make sure that the fuel tank cap is securely tightened in place before starting the engine.

Rotating parts hazard
Keep away from rotating parts. Be careful not to touch any part of the unit while it is running.

Technical Data

The manufacturer reserves the right to make minor changes to product design and technical specifications without prior notice unless these changes significantly affect the performance and safety of the products. The parts described/illustrated in the pages of the manual that you hold in your hands may also concern other models of the manufacturer’s product line with similar features and may not be included in the product you just acquired.
To ensure the safety and reliability of the product and the warranty validity, all repair, inspection or replacement work, including maintenance and special adjustments, must only be carried out by technicians of the authorized service department of the manufacturer.
Always use the product with the supplied equipment. Operation of the product with non-provided equipment may cause malfunctions or even serious injury or death. The manufacturer and the importer shall not be liable for injuries and damages resulting from the use of non-conforming equipment.

PREPARATION

Selecting, mixing and adding the appropriate fuel
Warning : Make sure the engine is stopped and cool before adding fuel.

Use a mixture of gasoline and 2-stroke engine oil. Do not use other types of oil.
Add 30ml of oil for every litre of gasoline.
Never use oil or gasoline that is dirty or otherwise contaminated.

STARTING THE ENGINE

Important : Before starting the engine, make sure to fill the chemical tank with clean water or chemical fluid. Do not start the engine if the chemical tank is empty.

Press the primer bulb until the fuel line is filled with fuel.
Close the choke lever.
Note : If the air temperature is high or the engine is warm, the choke lever can be set to the middle position or opened fully.
Set the throttle lever to the middle position.
Slowly pull the recoil starter 2-3 times.
Open the choke and briskly pull the recoil starter to start the engine.
Note : If the engine doesn’t start once the recoil starter is pulled, open the choke fully and repeat the above steps.
Caution : Be careful not to pull the recoil starter rope too far out.
Once the engine starts, set the throttle lever to the low speed position and let the sprayer warm up for 2-3 minutes.

OPERATION

Set the valve pressure lever to a position that is appropriate for the task at hand.
Set the throttle lever to the high speed position.
- After 100 hours of operation, check the oil level in the pump. If the oil level is lower than 1/3, remove the oil filler cap and add oil until the level reaches 2/3.
- Check the fuel level regularly. Refuel the tank once the fuel level is low.

STOPPING THE ENGINE

Pausing operation temporarily

Turn off the spray gun and set the throttle lever to the low speed position.
Press the engine switch to stop the engine.
Once the engine has stopped, turn off the fuel cock.

Stopping the engine after completing a task

Empty the chemical tank.
Fill the chemical tank with the clean water.
Start the engine and spray clean water in order to clean the inside of the pump and of the hose.
Run the engine at almost maximum speed for 15-20 seconds and spray the water.
Once water has stopped coming out of the nozzle, stop the engine.

MAINTENANCE – STORAGE

If the machine is not going to be used for a long time, take the following steps before storing it:

Drain the fuel from fuel tank and from the carburetor.
Take out the spark plug and apply a small amount of oil to the inside of the cylinder.
Slowly pull the recoil starter 2-3 times to ensure that the cylinder is completely filled with oil.
Slowly pull the recoil starter and stop once you feel resistance.
Clean the external parts of the machine with a cloth and store the unit in a dry and cool place.

TROUBLESHOOTING

General issues

Problem| Possible cause| Solution
No suction| Loose tube| Thoroughly tighten
Blocked suction tube| Disassemble and clean it
Worn piston| Replace it
Blocked valve| Disassemble and clean it
Low spraying performance| Worn piston| Replace it
Faulty/damaged piston| Replace it
Faulty/damage exhaust valve| Replace it
Worn pressure valve| Replace it
Blocked valve| Disassemble and clean it
Worn nozzle| Replace it
Too many nozzles are connected| Reduce the number of connected nozzles
The engine fails to start

Status| Diagnosis| Possible cause

There’s fuel in the tank but the spark plug doesn’t produce a spark

| ****

There’s current in the terminal

| Fouled spark plug (build-up of fuel on the

spark plug)

Improper spark plug gap

Defective or damaged insulator

There’s no current in the terminal| Faulty TCI or faulty cable

Short-circuit

There’s fuel in the tank and the spark plug works normally

| The compression is good| Improper fuel mixture

The compression is not good

| Improper assembly

The spark plug is not sufficiently tightened The piston springs are sticky

There’s no fuel in the carburetor

| | There’s no fuel in the tank

Faulty fuel valve or the ventilation slots on the tank are blocked

The pipes are kinked

The engine doesn’t run smoothly

Status| Diagnosis| Possible cause
No power| The compression is good| The air filter is dirty There’s air in the fuel line Faulty choke

Carbon build-up on the cylinder exhaust

The compression is bad| Burned spark plug Wire short-circuit

Improper fuel mixture or worn piston springs

Signs of wear on the cylinder. Cracks on the piston.

Engine overheating| | Low amount of fuel in the tank or the mixture is poor Improper fuel mixture Carbon build-up Broken spark plug Clogged cylinder
Abnormal sounds coming from the engine| | Overheated cylinder Engine overload Improper fuel mixture

Internal damage/malfunction

Poor acceleration| | The carburetor is not properly adjusted or the compression is incorrect

Bad fuel quality Carbon build-up

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WARRANTY

The machinery has been manufactured according to strict standards set by our company, which are aligned with the respective european quality standards. The diesel and gasoline powered machines are provided with a warranty period of 24 months for non-professional use and 12 months for professional use. The warranty is valid from the date of purchase of the product. Proof of the warranty right is the purchase document of the machine (retail receipt or invoice). Under no circumstances shall the company cover the relevant cost of spare parts and respective required working hours unless a copy of the purchase document is presented. In case the repair has to be done by our service department the cost of transportation (to and from) is entirely borne by the sender (client). The said machines must be sent for repair to the company or to an authorized workshop in the appropriate way and means of transport.

WARRANTY EXEMPTIONS AND RESTRICTIONS

Spare parts that wear out naturally as a consequence of being used (blade, chain, recoil starter, spark plug, trimmer line etc.).
Machinery damaged as a result of non-compliance with the instructions of the manu-facturer.
Machinery poorly maintained or taken care of.
Use of improper spare parts or accessories.
Machinery given to third entities free of charge.
Storing the machine with fuel.
Damage as a result of mistaken assembly.
Damage as a result of mixing of fuel with machine oil by mistake.
Damage as a result of poor quality of fuel or lubricant.
Damage as a result of not cleaning the generator as required.
Equipment that has been modified or disassembled by unauthorized personnel.
Broken parts/components as a result of inappropriate use.
Equipment used for rent.

The warranty covers only the free of charge replacement of the component that presents a manufacturing defect or material failure. In case of lack of a specific spare part the company reserves the right to replace the generator with another of the same kind. After all warranty procedures have been concluded, the warranty period of a generator shall not be extended or renewed. Replacement of a spare part with repair charge is covered by a 1 year warranty of good operation, subject to compliance with the warranty terms. The spare parts or tools that are replaced remain in the possession of our company. Requirements, other than those mentioned in this warranty form, regarding repairing a generator or damage thereof, do not apply. Greek law and relative regulations apply to this warranty.