Yanmar Air Cooled,Diesel Generator YDG5001SE

OPERATION MANUAL

Be sure to read this manual for safe and proper operation. Store this manual carefully after use.

1. Handling your generator YANMAR GENERATOR YDG SERIES

This Operation Manual tells you how to operate and service your new Yanmar generator. Please read it before using the generator to insure proper handling and operation. Follow the instructions carefully to keep your engine in the best running condition. If you have any question concerning this manual, please contact your nearest Yanmar dealer. This Operation Manual deals with the main points for operation of the YDG generator. In order to insure safe working conditions, be sure to read the precaution statements for safe operation of the generator. Pay special attention to statements preceded by the following words. WARNING: Indicates a strong possibility of severe personal p ersonal injury or loss of life if instructions are not followed. A CAUTION: Indicates a possibility of personal injury or equipment damage if instructions are not followed. Note: Gives helpful information. If a problem should arise, or if you have any questions about the generator contact an authorized Yanmar dealer. WARNING: The Yanmar generator is designed to give saf e saf e and dependable service provided that it is operated according according to instructions. Read and understand the Operation Manual before operating the generator. Failure to do so could result in personal injury or equipment damage.

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1. Handling your generator YANMAR GENERATOR YDG SERIES

This Operation Manual tells you how to operate and service your new Yanmar generator. Please read it before using the generator to insure proper handling and operation. Follow the instructions carefully to keep your engine in the best running condition. If you have any question concerning this manual, please contact your nearest Yanmar dealer. This Operation Manual deals with the main points for operation of the YDG generator. In order to insure safe working conditions, be sure to read the precaution statements for safe operation of the generator. Pay special attention to statements preceded by the following words. WARNING: Indicates a strong possibility of severe personal p ersonal injury or loss of life if instructions are not followed. A CAUTION: Indicates a possibility of personal injury or equipment damage if instructions are not followed. Note: Gives helpful information. If a problem should arise, or if you have any questions about the generator contact an authorized Yanmar dealer. WARNING: The Yanmar generator is designed to give saf e saf e and dependable service provided that it is operated according according to instructions. Read and understand the Operation Manual before operating the generator. Failure to do so could result in personal injury or equipment damage.

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1. Handling your generator TIPS ON SAFETY WARNING: 1. PREVENTING FIRES

Never add fuel to the fuel tank while the engine is running. Never add fuel to the fuel tank while smoking or open flame. Do not spill fuel. Wipe away all fuel spills with a clean cloth. Keep gasoline, kerosene, matches and other explosives and inflammables away from the generator, because the temperature around the exhaust muffler is very high during operation.  To prevent fire hazards and to provide adequate ventilation, keep the generator at least 3 ft (1 ml away from buildings and other equipment during operation.  Operate the generator on a level surface. There may be fuel spillage if the generator is tilted.  Do not put the generator indoors while the engine is still hot. 2. PREVENTING EXHAUST GAS INHALATION   

Exhaust gas contains poisonous carbon monoxide. Never use the generator in poorly ventilated locations such as indoors and inside tunnels. When installed in ventilated rooms, additional requirement for fire and explosion protection protection are to be abserved.

3. PREVENTING BURNS  

Some parts of internal combustion engine are hot and causes burns, pay attention to the warnings on the generator set. Never touch the muffler, muffler cover or cover or engine body while the engine is running or hot.

4. BRAKING

Provide stoppers for the wheels so that the generator will not move during operation.

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1. Handling your generator 5. ELECTRIC SHOCKS, SHORT CIRCUITS

In order to avoid electric shocks or short circuiting, do not touch the generator when either it or your hands are wet. This generator is not waterproof, so it should not be used in a place exposed to rain, snow or water sprays. Use of the generator in a wet place can cause short circuits and electric shocks during operation.  The generator should be grounded to prevent electrical shocks from faulty appliances. Connect a length of heavy wire between the generator’s ground terminal and an external ground source.  Do not hook up tools or other apparatus to the generator before it has been started. If equipment is attached, generator starting may cause sudden movements of the equipment and result in injuries and accidents. Be sure to disconnect any apparatus from the generator prior to starting.  The generator produces enough electric power to cause a serious shock or electrocution if misissued.  Using a generator or electrical appliance in wet conditions, such as rain or snow, or near a pool or sprinkler system, or when your hands are wet, could result in electrocution. Keep the generator dry.  When the generator is used outdoors, protect it from the weather such as rainfall, snow, etc. Moisture or ice can cause a malfunction or short circuit in electrical components which could result in electrocution.  Do not connect to a building’s electrical system unless an isolation switch has been installed by a qualified electrician. CAUTION:  Most appliance motors require more than their rated wattage for start-up.  Do not exceed the current limit specified for any one socket.  Do not connect the generator to a household circuit. This could cause damage to the generator and to electrical appliances in the house.

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1. Handling your generator 6. OTHER SAFETY TIPS 

   

 

7.

Know how to stop the generator quickly and understand how to operate all of the controls. Never permit anyone to operate the generator without proper instruction. Always wear suitable clothes when operating its generator. Do not operate under influence of alcohol. Keep children and pets away from the generator when it is in operation. Keep away from rotating parts while the generator is running. A spark arrester is provided as an optional part for this generator (Standard with U.S. spec. generators). It is illegal in some areas to operate the generator without a spark arrester. Check local laws and regulations before operating the generator. Work according to the rules and regulations of the work area. Use the correct tools and equipment.

WHEN CHARGING THE BATTERY 



 

Battery electrolyte contains sulphuric acid. Protect your eyes, skin and clothing. In case of contact, flush thoroughly with water and get prompt medical attention, especially if your eyes are affected. Batteries generate hydrogen gas, which can be highly explosive. Do not smoke or allow flames or sparks near a battery, especially during charging. Charge the battery in a fully ventilated location. Be sure to confirm battery polarity, when connecting the battery.

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1. Handling your generator

CONTENST

1. Specification …………………………………………………………. 1 2. Part Names …………………………………………………………… 2 3. Handling your generator ………………………………………… 3 4. Preparation for starting ………………………………………….. 5 5. How to start your generator …………………………………… 12 6. Operating your generator ………………………………………. 14 7. Load ……………………………………………………………………. 15 8. Stopping your generator ……………………………………….. 17 9. Periodic check and maintenance ……………………………. 19 10. Long-term storage ………………………………………………… 25 11. Unclear points or problems …………………………………….. 26 12. Troubleshooting ……………………………………………………. 27 13. How to connect a cable to the Plug Rubber 20A ……... 28 14. Electrical circuit diagram ………………………………………… 29

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2. Part names 1. Specification

1. Specifications Model

Item Type

YDG5001SE Revolving field type single-phase alternating current generator

Frequency

Hz

50

60

4.2 4.2

5.0 5.0

Voltage (AC)

KVA Kw V

220

230

110/220

120/240

110/220

Current (AC)

A

19.1

18.3

38.2/191

41.7/20.8

45.5/22.7

Rated output

e n i g Revolution speed n E Power factor

3000

rpm

3600 1.0

Phase

Single phase

Number of poles

2

Excitation

Self-excitation type

Insulation

Type E

Ball bearing Type Model Continous Output rated output Power Maximum output r o t Cylinder bore x a r e Displacement n e G Cooling system

Kw/rpm (Hp/rpm) Kw/rpm (Hp/rpm)

stroke

Grease-enclosed 4-cycle single cylinder air cooled diesel engine L100AE-DEGYS 5 L100AE-DEGYS 6 5.7/3000 6.6/3600 (7.7/3000) (9.0/3600) 6.5/3000 7.3/3600 (8.8/3000) (10.0/3600)

mm (in)

86 x 70 (3.38 x 2.76)

3

406 (24.8) Forced air-cooled system Forced lubrication

cc in

Lubrication system Lube oil capacity

l

1.65 (1.74)

(US qts)

Starting system Fuel oil Fuel oil tank capacity

Electric Diesel fuel l

(US qts)

YDG5001SE: 16 (4.22)

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2. Part names 2. Part Names

2.

Part names

2.1. Part names Exhaust outlet

Lifting eye

Fuel Filler cap

Control panel

Door cabinet

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2. Part Names Part names 3. Handling your generator

2.2. Control panel AC supply lamp Oil alert lamp

Voltage meter

Key switch

AC output

Breaker (No-fuse breaker)

3. Handling your generator 3.1. Low oil warning System/Stop Device The YDG-SE Generators have the Low Oil Warning System/Stop Device (Option for YDG-E models). The device works to stop the engine automatically when the oil pressure falls below the regulatory level and to prevent engine seizure when lube oil is running short. The oil temperature will rise too high if the engine is operated with insufficient lube oil. Too much oil, on the other hand is dangerous because the oil may combust and cause a sudden and excessive rise in engine rpm. So, before operating the generator, be sure to check the oil and supply oil to the specified level.

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2. Part Names Part names 3. Handling your generator

3.1. How to open the cabinet door and covers (1) Opening the cabinet door for daily inspection Turn the key 900 counterclockwise and pull back the door.

(2) Air cleaner check port cover Loosen the bolt to open the cover.

Air cleaner check port cover

3.3. Break-in operation While your generator is still new, applications of heavy loads -4-

3. Handling your generator 4. Preparation for starting

may shorten the life of the engine. Follow the break-in procedures during the first 20 hours. (1) Avoid overloads Avoid applying any heavy loads during the break-in period. (2) Change engine oil regularly Change the engine oil at first 50 hours or at the end of first month, and every 3 months or 200 hours thereafter. Note: Be sure to drain the oil while the engine is warm. Later, it may be difficult to drain the oil completely. Start Up First time Approx. one month of 50 hours.

Thereafter Every 3 months or 200 hours

4. Preparation for starting 4.1. Selection and handling of fuel oil (1) Selection of fuel oil Only use the diesel fuel, which is most suitable for the engine. (2) Keep dust and water out of the fuel Filling the fuel tank from drums, sure that no dust or water are in the fuel. This may lead to fuel injection pump and nozzle problems.

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CAUTION:  Only use the recommended diesel fuel oil. Use of nonrecommended fuel may cause clogging in the fuel oil strainer, fuel injection pump, and fuel injection nozzle. This clogging often causes sudden engine stops after starting.  Fuel should have a cetane value of more than 45 in order to prevent difficult starting, misfiring, and white exhaust smoke.  Diesel fuel oil substitutes are not recommended; they may be harmful to the fuel system components.  Fuel should be free of water or dust because these cause trouble in the fuel injection pump and nozzle. (3) Do not overfill Overfilling is dangerous. Do not fill the tank beyond the top of the red plug inside the fuel tank filter.

Fuel tank capacity (l ) Upper level /Lower level

YDG5001SE

16 / 0.5

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WARNING:  Refuel in a well-ventilated area with the engine stopped.  Do not smoke or allow flames or sparks in the area where the engine is refueled or where gasoline is stored.  Do not overfill the tank. Make sure the filler cap is securely closed after refueling.  Be careful not to spill fuel when refueling. If any fuel is spilled, make sure the area is dry before starting the engine. 4.2. Handling your engine oil WARNING:  Always check the lube oil level before starting the engine and refill if necessary.  The engine may be damaged if operated with insufficient lube oil.  It is also dangerous to supply too much lube oil to the engine as a sudden increase in engine rpm may be caused by its combustion. CAUTION: The YDG-SE series is equipped with a Low Oil Warning System/Stop Device (Option for YDG-E models). This safety device stops the engine during operation when the oil pressure falls lower than the limit, or the lube oil level becomes too low. This prevents accidents such as bearing seizures, etc. Use the appropriate lube oil in order to preserve your generator. Nothing affects the performance and durability of your generator more than the lube oil you use. If inferior oil is used, or if your engine oil is not changed regularly, the risk of piston seizure, piston ring sticking and accelerated wear of the cylinder liner, bearing and other moving components increases significantly.

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Your generator’s life may be seriously shortened. Yanmar recommends CC/CD oil of API engine service classification. Always use oil with the right viscosity for the ambient temperature in which your engine is being operated. Use the chart on this page when choosing your engine oil. S.A.E

5W

Service Grade

5W30 10W 10W30 20W 20W40 20 30 40

-30

-20

-10

0

10

20

30

40

O

Ambient temperature ( C)

Fill the oil up to the filler port with the engine placed on the level.

Lube Oil YDG5001SE capacity (l ) Upper level 1.65 / 1.05 /Lower level

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Oil filler cap / Dipstick

Drain Plug

CAUTION:  When checking the oil level, make sure your generator is sifting on the level. If it is tilted, you may add either too much or too little oil. If you overfill, your engine will consume too much oil. If you do not add enough oil, the oil temperature will rise dangerously high, and the oil will rapidly degenerate. Engine seizures may also result. So, be sure to check the oil with the engine on a level surface and the engine stopped.  To check the oil, simply dip the dipstick into the oil pan. Do not screw in the dipstick.  The YDG-SE models are equipped with an low oil warning System/Stop Device, but be sure to check the oil level and to refill with oil to the specified level before starting the generator. 4.3 Servicing your air cleaner (1)

Loosen the of the air element. Loosen the wing nut, detach the cover cleaner and remove the element.

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Air cleaner

Wing nut

Air cleaner inspection port cover

Element

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CAUTION:  Do not wash the air cleaner element with detergent, because the element is oil-soaked type.  Replace the element when its output decreases or a bad exhaust color is noticed.  Never run the generator without the air cleaner element. This may cause rapid engine wear. (2)

Reattach the cover of the air cleaner and tighten the wing nut.

4.4. Generator check Turn off the main switch and any other loads (such as the light and motor switches). WARNING: Be sure to turn off the main switch before starting, because connected tools or appliances may become a hazard.

Turn off the switch downward

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4. Preparation for starting 5. How to start your generator

WARNING: The generator should be earthed to prevent electric shocks.

NOTE: Please observe the panel and use the grounding terminal on the panel. 5.

How to start your generator

WARNING: Do not hook up toots or other apparatus to the generator before it has been started. 5.1. Electric starting The engine is started in the manner described below. (1) Starting 1). Open the Fuel Cock

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4. Preparation for starting 5. How to start your generator

Direction to Open

2). Turn the starting key clockwise to “START” position

Turn the starting key

3). Remove your hand from the key as soon as the engine starts 4). If the engine doesn’t start after 10 seconds, wait a while (for about 15 seconds) before attempting to start again.

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5. How to start your generator 6. Operating your generator

Caution: If the starting motor is turned for too long, the battery will go flat. Always leave the starting key turned on, in the “ON” position, while the engine is running. 6. Operating your generator 6.1. Operating your generator

Warm up the engine without load for about 3 minutes. For generators with low Oil Warning System, check that the Oil Alarm Lamp is not lit. CAUTION:  Low Oil Warning System Generators The blinking of the lube oil alarm lamp is activated by low oil pressure or a lube oil shortage. The engine stops automatically. The engine will stop immediately if restarted without a lube oil refill. Check the oil level and refill. 

Do not loosen or readjust either the engine speed limiting bolt or fuel injection limiting bolt. Performance may be affected.

Engine speed limiting bolt Fuel injection limiting bolt

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6. Operating your generator 7. Load

6.2. Checks during operation

(1) Any abnormal sound or vibration? (2) Is the engine misfiring or running rough? (3) What about the color of the exhaust gas? (Is it black or too white?) If you notice any of the above, stop the engine and contact your nearest Yanmar dealer. WARNING: If the engine has been running, the muffler will be very hot. Be careful not touch the muffler. Never refill the fuel tank while the engine is running. 7. Load

Generally, the capacities shown belom can be assumed incandescent lights, Machine using a electric appliance commutator motor Projectors, Drills, hot plates sanders,etc Type Within Single-phase Within 4200/5000W YDG5001SE 2000/2400W Generator [4000] Load (50Hz/60Hz)

Machine using an induction motor (condenser start type) Water pumps, compressors, etc. Load 60 Hz 50 Hz 400W or 7 6 250W

CAUTION:  Do not start 2 or more machines simultaneously. Start them one by one.  Do not use floodlights together with other machines. 7.1. AC application

(1) Start the engine and make sure the pilot lamp comes on. If it does not, the filament may be burnt out. (2) Plug in the appliance. CAUTION: Be sure that all appliances are in good working order before - 15 -

6. Operating your generator 7. Load

connecting them to the generator. If an appliance begins to operate abnormally, becomes sluggish, or stops suddenly, turn off the generator main switch immediately. Then disconnect the appliance and examine it for signs of malfunction. NOTE:

If overloading of the circuit trips the AC circuit protector, reduce ti-re electrical load on the circuit, and Wait a few minutes before resuming operation. 7.2. DC application

The DC receptacle may be used for charging 12 volt automotive-type batteries only. (Other loads may not be used.) Applicable battery:  When AC output receptacle is used: 18 - 35 AH (20 hrs. rating)  When AC output receptacle is not used: 18-60 AH (20 hrs. rating) (1) When using automotive-type batteries with battery cables, be sure to disconnect the minus (-) battery cable from the battery before charging. (2) Start the engine (3) Connect the charging cable to the battery terminals and the DC terminals of the generator. CAUTION:  Connect the positive battery terminal to the positive generator terminal. Do not reverse the charging cables, or serious damage to the generator and/or battery may occur.  Do not allow the free ends of the cable to touch each other. If this occurs, it will short circuit the battery.

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7. Load 8. Stopping your generator



When a large capacity battery is charged, excessive current flows (the value varies depending on the discharging condition), and the fuse for the direct current will burnout.



When charging a battery, the total load of the AC and DC output should not exceed the continuous rated output.

WARNING:  Batteries produce explosive gases. Keep sparks, flames, and cigarettes well away. To prevent the possibility of creating a spark near the battery, always connect the charging cables to the battery first and only then to the generator. When disconnecting, you should disconnect the cables at the generator first. 

Charge the battery in a well-ventilated place.



Before charging, remove the cap from each cell of the battery.



Discontinue charging if the electrolyte temperature exceeds 45°C (117°F).

CAUTION: Do not attempt to start an automobile engine while the generator is still connected to the battery. The generator may be damaged. CAUTION: Do not use DC 12 volts and AC at the same time. 8. Stopping your generator

(1) Turn off the main switch of the generator. (2) Low Oil Warning System Generator: With the engine speed lever at “RUN” position, operate the engine without load for about 3 minutes. Generators w/o Low

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7. Load 8. Stopping your generator

Oil warning System: With the engine speed lever at “SLOW” position, operate the engine without load for about 3 minutes. CAUTION: Do not stop the engine suddenly because this may cause the temperature to rise abnormally.

(3) When the key switch is turned to “OFF”, the generator stop. WARNING: If the engine keeps on running even after the speed lever is placed at the “STOP” position, either turn the fuel oil cock to “CLOSE” position (SE type only) or loosen the nut of high pressure fuel pipe on the pump side to stop the engine. In such case, contact your nearest Yanmar to locate the cause and have them e the generator. Loosen the nut

CAUTION:  Do not stop the engine suddenly because this may cause the temperature to rise abnormally.  Do not stop the engine with the decompression lever.

(4) Set the fuel cock lever to the “S” (closed) position. (SE type only)

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8. Stopping your generator 9. Periodic checks and maintenance

Close position

(5) Slowly pull out the recoil handle until pressure is felt (that is, to the point in the compression stroke where the intake and exhaust valves are closed), and leave the handle in this position. This prevents rust from forming while the engine is not in use. 9. Periodic checks and maintenance

Periodic checks and maintenance are very important for keeping the generator in good condition and maintenance durability. The chart below indicates which checks to make and when to make them. The mark ( ) indicates that special tools and skills are required. Consult your Yanmar dealer. WARNING: Shut off the engine before performing any maintenance. If the engine must be run, make sure the area is well ventilated. The exhaust contains poisonous carbon monoxide gas.

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Maintenance schedule Part

Item Check the fuel level and refill if necessary

Daily check

Every 3 Every 6 month or month or every 200hrs every 400hrs

Every year or every 1000hrs

Before Operation Once a month

Drain the fuel tank m e t s y S l i O l e u F

Every month or every 50hrs

Clean the fuel tank Replace the fuel filter element Check for fuel oil leakage Fuel injection Check the injection Bozzle condition

After Operation

Check the fuel injection timing Check the fuel injection pump m e t s y S l i O . e b u L

Air induction System Electric System Engine Body Generator

Check the lube. Oil level in the oil pan and refill if necessary

Before Operation

Replace the lube. Oil

1st time

Clean lube. Oil filter Check for lube. Oil leakage

1st time

2nd time & thereafter 2nd time & thereafter

After Operation

Check the air cleaner element Replace the air cleaner element Check the battery liquid level and refill if necessary Adjusting the intake and exhaust valve clearance Check commutator brush and slip ring

Before Operation

NOTE: Item marked ( ) should be serviced by an authorized Yanmar dealer, unless the owner proficient mechanical ability and the proper tools. CAUTION:  After the engine has been used, clear it immediately with a cloth to prevent corrosion and to remove sediment.  Use only genuine Yanmar parts. The use of replacement parts, which are not of equivalent quality, may damage the engine.

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9.1. How to change your engine oil Remove the oil filler cap. Remove the tam plug and drain the old oil while tie engine is still warm. The plug is located on the bottom of the cylinder Sock. Tighten the drain plug and refill with the recommended oil, (See the section under “Preparations for starting.”)


Drain Plug

9.2. Cleaning the oil filter Loosen the fixing bolt and then pull out the oil filter.

Cleaning Every 6 months or time 400 hours Replace if necessary

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Oil filter

9.3. Changing the air cleaner element Do not wash the air cleaner element with detergent because this is a oil-soaked type element.

Change

Every 6 months or 400 hours (or earlier if dirty)

Element

See the section for changing the air cleaner element under “Preparations for starting.”

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CAUTION: Never run the engine without the element or with a defective element. Note: 



A clogged element hinders the flow of air to the combustion chamber. This reduces engine output, increases lube oil and fuel oil consumption and makes starting difficult. Make sure you replace your element regularly.

9.4. Cleaning and replacing the fuel filter The fuel filter also has to be cleaned regularly to insure maximum engine output. Clean Replace

Every 3 months or 200 hours Every 6 months or 400 hours

Fuel tank

Release the fuel intake Hose’s to drain the fuel tank

(1) Drain the fuel oil from the fuel tank by releasing the fuel intake hose’ s.

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(2) Loosen the small screws of the fuel cock and pull out the filter from the F.O. tank. Wash the filter thoroughly with diesel fuel. 9.5. Checking the injection nozzle. Injection pump, etc. Adjusting the valve head clearance for the intake and exhaust valves. This requires special tools and skills, so contact your Yanmar dealer. WARNING: Do not perform the injection nozzle test near an open fire or any other kind of fire, The fuel spray may ignite. Do not bare skin to the fuel spray. The fuel may penetrate the skin and cause injury to the body. Always keep your body away from the nozzle. 9.6. Charging the battery WARNING:  Before charging, remove the cap from each cell of the battery.  Charge the battery in a place where there is plenty of ventilation.  Discontinue charging if the electrolyte temperature exceeds 45°C (117° F). CAUTION:  Do not charge the battery with the battery cable still connected. The high voltage will damage the diodes.  Connect the (+) lead of the charger to the (+) terminal of the battery, and the (—) lead to the (—) terminal. Reversed polarity will damage the charger rectifier or the battery.  After charging is completed, connect the battery cables correctly to the battery. Reversed polarity wiring will damage the diodes.

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9. Periodic checks and maintenance 10. Long term storage



Quick-charging should only be done in an emergency; slow charging is recommended.

9.7. Check of commutator brush and slip ring Contact your nearest Yanmar dealer. 10. Long-term storage If storing your engine for long periods, make the following preparations. (1) Operate the engine for about 3 minutes and then stop. (2) Stop the engine. Drain the engine lube oil while the engine is still warm and fill with new oil.


Drain Plug

(3) Electric starting: Turn the engine for 2 ~ 3 seconds with the decomp. lever set at the non-compression position, and the starter key at the “START” position. (Do not start the engine.) (4) Wipe the oil and dirt from the engine and store in a dry place.

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9. Periodic checks and maintenance 11. Unclear points or problems

11. Unclear points or problems

If may instructions are unclear or if problems occur during the operation of your operator, complete the following form contact your Yanmar dealer. (Make a note of your dealer’s name and telephone number on the inside cover of this manual.) (1) Diesel engine model and serial number, type and number of generator being used. Engine model

: ……………………………………………

Engine serial number

: ……………………………………………

Generator type

: ……………………………………………

Generator number

: ……………………………………………

(2) Condition At what stage of operation

: …………………………………………

At what rpm

: ………………………….

(3) Period of use Approximately …………… hours (4) Other details of conditions at the time the problem occurred.

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9. Periodic checks and maintenance 12. TroubleShooting

12. Troubleshooting 12.1. When the engine will not start:

(1)

Is there enough fuel?

(2)

Is the fuel cock at the “OPEN” position?

(3)

Is diesel fuel reaching the fuel injection pump or nozzle?

(4)

Is the speed control lever in the “RUN” position?

(5)

Is the lube oil level correct?

(6)

Is the fuel injection nozzle working properly?

(7)

Is the recoil starter pulled sufficiently quickly and firmly?

(8)

Is the spark arrester clogged by carbon?

(9)

Is the battery discharging?

WARNING: Keep away from the injection nozzle when performing the injection spray test. Note: Always pull the recoil starter quickly and firmly. (See the section, “How to start your generator.”) 12.2. When no electricity is generated:

(1)

Is the main switch turned on?

(2)

Are the generator brushes worn?

(3) Are the plugs correctly connected? If electricity is still not generated, take the generator to a Yanmar dealer.

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9. Periodic checks and maintenance 13. How to connect a cable to a plug rubber 20A How to connect a cable to the Plug rubber 20A ? 1. Release the rubber insulation from the plug. 2. Release the shield cover from the plug. 3. Connect the cable ( 3 x 2,5 mm) to the plug’s pole which locate at the front side of the plug, with order :  ‘W’ pole for grounding  ‘Y’ pole for neutral  ‘X’ pole for Phase

(A)

(B)

(C)

(D)

(E)

(F)

(G) - 28 -

9. Periodic checks and maintenance 14. Electrical circuit diagram

14. Electrical circuit diagram

- No illustration intended for this section -

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Yanmar Air Cooled,Diesel Generator YDG5001SE

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