NAKAYAMA PC3600 Gasoline Chainsaw Instruction Manual

: October 30, 2023
: NAKAYAMA

NAKAYAMA PC3600 Gasoline Chainsaw

NAKAYAMA PC3600 Gasoline Chainsaw-
product

Product Information

The PC3600 is a chainsaw manufactured by Nakayama Tools. It comes with a saw chain, guide bar, front hand guard, primer bulb, throttle trigger, throttle trigger lock lever, rear handle, air filter cover, lock nut, starter handle, front handle, oil tank, fuel tank, guide bar scabbard, clutch cover, choke knob, and engine switch. It has a displacement of 25.4 cc and a bar length of 25 cm with a 1/4 – 0.043 chain type. The rated power of the chainsaw is 1.4 Hp and operates on a 2 stroke cycle with an idling speed of 3500 rpm. The oil gasoline mixing ratio is 30 ml / 1 lt and has a fuel tank capacity of 200 ml and engine oil tank capacity of 140 ml.

Technical Data

Model: PC3600
Displacement: 25.4 cc
Bar Length: 25 cm
Chain Type: 1/4 – 0.043
Rated Power: 1.4 Hp
Cycle: 2 Stroke
Idling speed: 3500 rpm
Oil Gasoline Mixing Ratio: 30 ml / 1 lt
Fuel Tank Capacity: 200 ml
Engine Oil Tank Capacity: 140 ml
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.
Please note that our equipment has not been designed for use in commercial, trade or industrial applications. Our warranty will be voided if the machine is used in commercial, trade or industrial businesses or for equivalent purposes.
To ensure the safety and reliability of the product and the warranty validity, all repair, inspection, repair or replacement work, including maintenance and special adjustments, must only be carried out by technicians of the authorized service department of the manufacturer.

Safety Precautions

Read the manual carefully before using the product.
Do not operate the chainsaw when fatigued, ill, upset, under the influence of medication that may make you drowsy, or under the influence of alcohol or drugs.
Operate the chainsaw only in well-ventilated areas and never start or run the engine inside a closed room or building due to dangerous carbon monoxide fumes.
Do not cut in high wind, bad weather, when visibility is poor, or in very high or low temperatures. Always check for dead branches that could fall during the felling operation.
Wear safety and slip-resistant footwear, snug-fitting clothing, and eye, hearing, and head protection devices. Use the anti-vibration (AV) glove. Continual and regular users should monitor closely the condition of their hands and fingers. If any of the above symptoms appear, seek medical advice immediately.

Attention ! Read these notes before you start working with the saw and keep them. Read the instructions carefully. Familiarise yourself with the control elements so that you are able to safely operate the device. Always keep these Operating Instructions together with the chain saw. Attention! Risk of hearing defects. Under normal operating conditions, this device can expose the operator to a noise level of 80 dB(A) or more. Attention: Noise protection ! Please observe the local regulations when operating your device.

Before using our products, please read this manual carefully to understand the proper use of your unit.
Never operate a chain saw when you are fatigued, ill, or upset, or under the influence of medication that may make you drowsy, or if you are under the influence of alcohol or drugs.
Operate the chain saw only in well ventilated areas. Never start or run the engine inside a closed room or building. Exhaust fumes contain dangerous carbon monoxide.
Never cut in high wind, bad weather, when visibility is poor or in very high or low temperatures. Always check the tree for dead branches which could fall during the felling operation.
Use safety and slip-resistant footwear, snug fitting clothing and eye, hearing and head protection devices. Use the anti-vibration (AV) glove. It is believed that a condition called Raynaud’s phenomenon, which affects the fingers of certain individuals may be brought about by exposure to vibration and cold. Loss of color and numbness in the fingers.
The following precautions are strongly recommended because the minimum exposure which might trigger the ailment is unknown. Keep your body warm, especially the head, neck, feet, ankles, hands and wrists. Maintain good blood circulation by performing vigorous arm exercises during frequent work breaks and also by not smoking. Keep the saw chain sharp and the saw, including the AV system, well maintained. A dull chain will increase cutting time, and pressing a dull chain through wood will increase the vibrations transmitted to your hands. A saw with loose components or with damaged or worn AV buffers will also tend to have higher vibration levels. Limit the hours of operation. All the above mentioned precautions do not guarantee that you will not sustain white finger disease or carpal tunnel syndrome. Therefore, continual and reg- ular users should monitor closely the condition of their hands fingers. If any of the above symptoms appear, seek medical advice immediately.
Always use caution when handling fuel. Wipe up all spills and then move the chain saw at least ten(10)feet (three(3) m) from the fueling point before starting the engine.
Eliminate all sources of sparks or flame (ie. smoking, open flames, or work that can cause sparks) in the areas where fuel is mixed, poured, or stored. Do not smoke while handling fuel or while operating the chain saw.
Do not allow other persons to be near the chain saw when starting the engine or cutting a wood. Keep bystanders and animals out of the work area. Children, pets, and bystanders should be a minimum of 30 feet (10m) away when you start or operate the chain saw.
Never start cutting until you have a clear work area, secure footing, and planned retreat path from the falling tree.
Always hold the chain saw firmly with both hands when the engine is running. Use a firm grip with thumb and fingers encircling the chain saw handles.
Keep all parts of your body away from the saw chain when the engine is running. Before you start the engine, make sure the saw chain is not contacting anything.
Always carry the chain saw with the engine stopped, the guide bar and saw chain to the rear, and the muffler away from your body.
Always inspect the chain saw before each use for worn, Ioose, or changed parts. Never operate a chain saw that is damaged, improperly adjusted, or is not completely and securely assembled. Be sure that the saw chain stops moving when the throttle control trigger is released.
All chain saw service, other than the items listed in the Operator’s Manual, should be performed by competent chain saw service personnel. (e.g., if improp-er tools are used to remove the flywheel, or if an improper tool is used to hold the flywheel in order to remove the clutch, structural damage to the flywheel could occur which could subsequently cause the flywheel to disintegrate).
Always shut off the engine before setting it down.
Use extreme caution when cutting small size brush and saplings because slender material may catch the saw chain and be whipped toward you or pull you off balance.
When cutting a limb that is under tension, be alert for spring back so that you will not be struck when the tension in the wood fibers is released.
Keep the handles dry, clean and free of oil or fuel mixture.
Guard against kickback. Kickback is the upward motion of the guide bar which occurs when the saw chain at the nose of the guide bar contacts an object. Kickback can lead to dangerous loss of control of the chain saw.
When transporting your chain saw, make sure the appropriate guide bar scabbard is in place. Securely place the machine and tighten the cap of oil and fuel tank during transport to prevent loss of fuel, damage or injury.

Product Usage Instructions

Before using the chainsaw, read the manual carefully to understand its proper use.
Make sure you are not fatigued, ill, upset, under the influence of medication that may make you drowsy, or under the influence of alcohol or drugs before operating the chainsaw.
Operate the chainsaw only in well-ventilated areas and never start or run the engine inside a closed room or building due to dangerous carbon monoxide fumes.
Do not cut in high wind, bad weather, when visibility is poor, or in very high or low temperatures. Always check for dead branches that could fall during the felling operation.
Wear safety and slip-resistant footwear, snug-fitting clothing, and eye, hearing, and head protection devices. Use the anti-vibration (AV) glove. Continual and regular users should monitor closely the condition of their hands and fingers. If any of the above symptoms appear, seek medical advice immediately.
Attach the saw chain to the guide bar and ensure it is tightened properly.
Fill the fuel tank with gasoline and engine oil mixture with a ratio of 30 ml oil per 1 lt of gasoline.
Fill the engine oil tank with engine oil.
Prime the engine bulb by pressing it several times until the fuel is visible in the bulb.
Turn on the engine switch located near the rear handle.
Press the throttle trigger to rev up the engine and engage the chain with the material to be cut.
Use the front and rear handles to guide the chainsaw through the material being cut.
When finished, turn off the engine switch and allow the chainsaw to cool down before storing it in a dry and safe place.

Kickback Safety Precautions for Chain Saw Users
Kickback may occur when the nose or tip of the guide bar touches an object, or when the wood closes in and pinches the saw chain in the cut. Tip contact in some cases may cause a lightning fast reverse reaction, kicking the guide bar up and back towards the operator. Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the operator. Either of these reactions may cause you to lose control of the saw which could result in serious personal injury.
Do not rely exclusively on the safety devices built into your saw. As a chain saw user you should take several steps to keep cutting jobs free from accident or injury.

With a basic understanding of kickback you can reduce or eliminate the element of surprise. Sudden surprise contributes to accidents.
Keep a good grip on the saw with both hands, in the same way as a conventional chain-saw. the right hand on the rear handle, and the left hand on the front handle, when the engine is running. Use a firm grip with thumbs and fingers encircling the chain saw handles. A firm grip will help you reduce kickback and maintain control of the saw. Don’t let go.
Make certain that the area in which you’re cutting is free from obstructions. Do not let the nose of the guide bar contact a log, branch, or any other obstruc-tion which could be hit while you are operating the saw.
Cut at high engine speeds.
Do not overreach or cut above shoulder height.
Follow manufacturers sharpening and maintenance instructions for saw chain.
Only use replacement bars and chains specified by the manufacturer or the equivalent.

Installing guide bar and saw chain

A standard saw unit package contains the items as shown below:

Power unit
Saw chain
Guide bar
Guide bar scabbard
Plug wrench
File

Open the box and install the guide bar and the saw chain on the power unit as follows. The saw chain has very sharp edges. Use protective gloves for safety.

Pull the guard towards the front handle to check that the chain brake is not on.
Loosen a nut and remove the chain cover. Fix the spiked bumper with two screws on the forefront of the chain saw (Figure 1).
Nut
Clutch cover
Spiked bumper
Tapping screwThe spiked bumper belongs to the chain saw. It must be screwed up on chain saw before the initial use
Remove the spacer from the chain saw (Figure 2)
Fit the guide bar to the power unit, and then push the guide bar toward the clutch (Figure 3).
Gear the chain to the sprocket and, while fitting the saw chain around the guide bar. Pay attention to the correct direction of the saw chain.
Adjust the position of chain tensioner nail, and then insert the tensioner nail in the lower hole of the guide bar. Mount the clutch cover to the power unit and fasten the mounting nut to finger tightness. While holding up the tip of the bar, adjust the chain tension by turning the tensioner screw until the tie straps just touch the bottom side.
Tensioner nail
T ensioner screw
Tighten the nut securely with the bar tip held up (12 ~ 15 Nm). Then check the chain for smooth rotation and proper tension while moving it by hand. If necessary, readjust with the chain cover loose.
Turn the tensioner screw clockwise to tighten the chain, turn the tensioner screw coun-ter-clockwise to loosen the chain.
Check the tension of the saw chain. Use your hand to lift the chain link which positions on the middle of cutting length up with approximate 10N force. If the chain link goes out of the rail of guide bar entire, you need to retighten the chain. It is very important to maintain the proper chain tension. Rap-id wear of the guide bar or the chain coming off easily can be caused by improper tension. Especially when using a new chain, take good care of it since it should expand when first used.

Fuel and Chain Oil

The engine is lubricated by oil specially formulated for air-cooled 2-cycle gas-oline engine use. If oil is not available, use an antioxidant added quality oil expressly labeled for air-cooled 2-cycle engine use.

RECOMMENDED MIXING RATIO : 30 ml oil / 1 lt gasoline

The fuel is highly flammable. Do not smoke or bring any flame or sparks near fuel.

FUEL WITH NO OIL (RAW GASOLINE) may cause severe damage to the engine inner parts very quickly.
OIL FOR 4-CYCLE ENGINE USE or WATER COOLED 2-CYCLE ENGINE USE can cause spark plug fouling, exhaust port blocking, or piston ring sticking.

Measure out the quantities of gasoline and oil to be mixed.
Put some of the gasoline into a clean, approved fuel container.
Pour in all of the oil and agitate well.
Pour in the rest of gasoline and agitate again for at least one minute.
Put a clear indication on the outside of the container to avoid mixing up with gasoline or other containers.

Chain Oil
Use special chain saw oil all year round. Do not use waste or regenerated oil that can cause damage to the oil pump.

Operation

STARTING ENGINE

Untwist and remove the fuel cap and oil cap.
Fill the fuel tank and oil tank to 80% of the full capacity.
Fasten the fuel cap and oil tank securely and wipe up any fuel spillage around the unit.
Put the switch to the “I” position.
Pull out the choke knob. The choke will close and the throttle lever will then be set in the starting position.
Continuously push the primer bulb until fuel comes in the bulb.
Engine switch
Choke knob
Primer bulb
Fuel tank cap
Oil tank cap
Push the front handle guard down toward the front to activate the chain brake.
While holding the saw unit securely on the ground, pull the starter rope vigorously.
When firing occur, push in the throttle trigger to allow the choke return to the running position and pull the starter handle again to start the engine.

CHAIN BRAKE
The chain brake is a device which stops the chain instantaneously if the chain saw recoils due to kickback. Normally, the brake is activated automatically by inertial force. It can also be activated manually by pushing the brake lever (Front handle guard) down toward the front.

When the brake operates, a white cone pops up from the base of the brake lever.

Rear handle
Release
Brake
Front handle guard

To release brake, pull up the front handle guard toward the rear handle till “click” sound is heard. NAKAYAMA PC3600 Gasoline Chainsaw-
fig-16

Warning
When the brake operates, release the throttle lever to slow down the engine speed. Continuous operation with the brake engaged will generate heat from the clutch and may cause trouble. Be sure to confirm brake operation on the daily inspection.

How to confirm:

Turn off the engine.
Holding the chain saw horizontally, release your hand from the front handle, hit the tip of the guide bar to a stump or a piece of wood, and confirm brake operation. Operating level varies by bar size.

In case the brake is not effective, ask our dealer inspection and repairing. NAKAYAMA PC3600 Gasoline Chainsaw-fig-17

Stopping engine

Release the throttle trigger to allow the engine idling for a few minutes.
Set the switch to the “O” (STOP) position.
Engine switch

Sawing

Before proceeding to your job, read “For Safe Operation” section it is recommended to first practice sawing easy logs. This also helps you get accustomed to your unit. Always follow all the safety regulations which can restrict the use of the machine. The chain saw must only be used for cutting wood. It is forbidden to cut other types of material. Vibrations and kickback vary with different materials and the requirements of the safety regulations would not be respected. Do not use the chain saw as a lever for lifting, moving or splitting objects. Do not lock it over fixed stands. It is forbidden to hitch tools or applications to the P.T.O. that are not specified by the manufacturer. It is not necessary to force the saw into the cut. Apply only light pressure while running the engine at full throttle. It is recommended that daily inspection before use and after dropping or other impacts to identify significant damage or defects. Racing the engine with the chain seized in a cutaway can damage the clutch system. When the saw chain is caught in the cut, do not attempt to pull it out by force, but use a wedge or a lever to open the cut.

Guard against kickback
This saw is also equipped with a chain brake that will stop the chain in the event of kickback if operating prop-erly. You must check the chain brake operation before each usage by running the saw at full throttle for 1 or 2 sec-onds and pushing the front hand guard forward. The chain should stop immediately with the engine at full speed. If the chain is slow to stop or does no stop then replace the brake band and clutch drum before use. It is extremely important that the chain brake be checked for proper operation before each use and that the chain be sharp in order to maintain the kickback safety level of this saw. Removal of the safety devices, inadequate maintenance, or incorrect replacement of the bar or chain may increase the risk of serious person-al injury due to kickback. NAKAYAMA PC3600 Gasoline
Chainsaw-fig-19

Maintenance

Before cleaning, inspecting or repairing your unit, make sure that engine has stopped and is cool. Disconnect the spark plug to prevent accidental starting. Follow the instructions to carry out regular maintenance, pre-operating procedures and daily maintenance routines. Improper maintenance may result in serious damage to the machine.

Maintenance after each use

Air filter
Dust on the cleaner filter can be removed by washing in a solu-tion of household detergent and warm water. To clean dirt in the meshes, remove the cleaner cover and brush in gasoline. When using compressed air, blow from the inside.
air filter nut
air filter cover
cleaner cover
Oiling sprayer
Dismount the guide bar and check the oiling outlet for clogging.
Oiling outlet
Oiling inlet
Guide bar
When the guide bar is dismounted, remove sawdust in the bar groove and the oiling inlet. Grease the nose sprocket from the feeding port on the tip of the bar.
Grease port
Sprocket
Others
Check for fuel leakage and loose fastenings and damage to ma-jor parts, especially handle joints and guide bar mounting. If any defects are found, make sure to have them repaired before operating again.

Periodical service points

Cylinder fins
Dust clogging between the cylinder fins will cause overheating of the engine. Periodically check the fins after removing the clutch cover, and then use pressure air to clean the cylinder fins.
Fuel filter
Using a wire hook, take out the filter from the filler port.
Disassemble the filter and wash with gasoline, or replace with a new one if needed IMPORTANT:

  * After removing the filter, use a pinch to hold the end of the suction pipe.
  * When assembling the filter, take care not to allow filter fibers or dust inside the suction pipe.

Spark plug
Clean the electrodes with a wire brush and reset the gap to 0.65mm as necessary. Spark plug type: TORCH L7RTC
Sprocket
Check for cracks and for excessive wear interfering with the chain drive. If the wear is considerable, replace it with new one. Never fit a new chain on a worn sprocket, or a worn chain on a new sprocket.
Front and Rear dampers
Replace if adhered part is peeled or crack is observed on the rubber part. Replace if the inside of the rear damper metal has been beaten by the stopper bolt and the clearance of the metal increased.
WARNING: Use only the spare parts which named in this manu-al. Use the other spare part can cause serious injury.

Maintenance of Saw Chain and Guide Bar

Saw chain

It is very important for smooth and safe operation to keep the cutters always sharp. Your cutters need to be sharpened when:

Sawdust becomes powder-like.
You need extra force to saw in.
The cut way does not go straight.
Vibration increases.
Fuel consumption increases.

Cutter setting standards:

Before filing:

Make sure the saw chain is held securely.
Make sure the engine is stopped.
Use a round file of proper size for your chain.

File size: 5/32”(4.0mm) for all models. Place your file on the cutter and push straight forward. Keep the file position as illustrated.After every cutter has been set, check the depth gauge and file it to the proper level as illustrated. Be sure to round off the front edge to reduce the chance of kickback or tie-strap breakage.

Guide bar

Reverse the bar occasionally to prevent partial wear.
The bar rail should always be a square. Check for wear of the bar rail. Apply a ruler to the bar and the outside of a cutter. If a gap is observed between them, the rail is normal. Otherwise, the bar rail is worn. Such a bar needs to be corrected or replaced.

Ruler
Gap
No gap
Chain tilts

Storage

Empty the fuel tank and run the engine out of fuel.
Empty the oil tank.
Clean the entire unit.
Store the unit in a dry place out of the reach of children.

Waste disposal and environmental protection

Never pour remainders of chain lubricant or 2-stroke fuel mixture in the drain or sewerage system or soil, but dispose of it in a proper, environmentally friendly way, e.g., at a special collecting point or dump. If your device should become useless somewhere in the future or you do not need it any longer, do not dispose of the device together with your domestic refuse, but dispose of it in an environmentally friendly manner. Thoroughly empty the oil/lubricant and fuel tanks and dispose of the remainders at a special collecting point or dump. Please also dispose of the device itself at an according collecting/recycling point. By doing so, plastic and metal parts can be separated and recycled. Information concerning the disposal of materials and devices are available from your local adminis-tration.