WilTec C173F, C178F, C178FD, C186F, C186FD, C188F, C188FD Operation Manual

Operation Manual

DIESEL ENGINE

ARTICLE 92454

Read and follow the operating instructions and safety information before using for the first time.

Technical changes reserved!

Due to further developments, illustrations, functioning steps and technical data can differ insignificantly.

Updating the documentation

If you have suggestions for improvement or have found any irregularities please contact us.

© by WilTec Wildanger Technik GmbH http://www.WilTec.de

http://www.aoyue.eu

http://www.teichtip.de

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The information contained in this document is subject to change without prior notice. No part of this document can be copied or duplicated in another form without the prior written consent of WilTec

Wildanger Technik GmbH. The WilTec Wildanger Technik GmbH assumes no liability for any errors in this user manual or the connection diagram.

Although WilTec Wildanger Technik GmbH has made every effort to make sure that this user manual is complete, accurate and updated, errors cannot always be avoided. In the event of problems with this user manual please complete and send this form back to us.

FAX-notification (++ +49 2403 55592-15 ), from: ________________________________________

Name: ________________

Firm: _____________________

Tel/Fax: __________________

I would like to report the following mistakes:

_______________________________ ____________________________________

Customer Service WilTec Wildanger Technik GmbH e-mail: [email protected]

Tel:++ +49 2403 55592-0

Introduction

Thank you for purchasing this quality product.

To minimize the risk of injury by means of fire or electric shock we urge that our clients take some basic safety precautions when using this device. Please read the operation instructions carefully and make sure you have understood its content.

Always use a grounded power connection with the appropriate mains voltage. You can find the corresponding mains voltage on the type plate. If you have any doubts about the connection being grounded, have it checked by a qualified professional. Never use a faulty electric cable.

Do not inspect the electrical part of the pressure pond filter in a wet or damp environment or when you are wet yourself and protect it from direct sunlight. Install this device in a safe location so that nobody can step on the cable, fall over or damage it. Disconnect the power plug before cleaning it and use only a damp cloth for cleaning. Avoid using cleaning agents and make sure that no liquid enters the electrical part of the pump.

The electric part of the device contains no parts that can be inspected or serviced by the user. Leave the maintenance, adjustment and repair to qualified technical personnel. In case of unauthorised intervention the 2-year warranty is no longer valid! Keep these operation instructions safe.




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INTRODUCTION

Thank you for purchasing products from our company.

 Direct injection combustion chamber.

 Recoil-type manual starter and optional electric starter.

 Force air cooling system.

 The fan cover made of low noise composite steel plate.

Series air cooling, direct injection. 4-stroke diesel engines are such a type engine of saving on material and energy. The series engines are small, light. They’re easy to maintain, and convenient to move.

They are used widely as a power for industrial, agricultural, machinery tool such as irrigation, spray, rice-transplanting, threshing, grass-cutting, Soil-sampling, and also used in vibration rammer, shock rammer, marine engine, light-type transport vehicle, movable-type compressor, light-type generation set, car washing machine, tillage machinery etc..

This operating manual will tell you how to operate and maintain your series engines. Please read it before running the engine for correct operation. Follow the operating requirement in the manual to keep your engine in best working condition and make the make the engine run longer. If you have any questions or suggestions about this manual, please contact us or dealer. User should pay attention to that with the improvement of our products the description in this manual may differ from practical products.

Please make sure to follow each precaution carefully.

EXHAUST PRECAUTIONS

 Never inhale exhaust gas, it contains carbon monoxide, a colorless, odorless and extremely dangerous gas which can cause unconsciousness or death.

 Never operate the engine indoors or in a poorly ventilated area, such as a tunnel or cave, etc. exercise extreme care when operating the engine near people or animals.

 Keep the exhaust pipe free of external objects.

REFUELING PRECAUTIONS

 Be sure to stop the engine prior to refueling.

 Do not overfill the fuel tank.

 If fuel is spilt, wipe it away carefully and wait until the fuel has dried before starting the engine.

 When changing oil, make sure that the fuel cap is secure to prevent spillage.

FIRE PREVENTION

 Do not operate the engine while smoking or near an open flame.

 Do not use the engine around dry brush, twigs, clothrags, or other flammable materials.

 Keep the engine at least 3 feet(1 meter) away from buildings or other structures.

 Keep the engine away from flammables and other hazardous materials(trash, rags, lubricants, explosives).




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PROTECTIVE COVER

 Place the protective covers over the rotating parts. If rotating parts, such as the driving shaft, pulley, belt, etc. are left exposed, they are potentially hazardous. To prevent injury, equip them with protective covers or shrouds.



Be careful of hot parts. The muffler and other engine parts become very hot while the engine is running or just after it has stopped. Operate the engine in a safe area and keep children away from the running engine.

SURROUNDINGS

 Operate the engine on a table, level surface free of small rocks, loose gravel, etc.

 Operate the engine on a level surface. If the engine is tilted, fuel spillage may result.

NOTE: Operating the engine at a steep incline may cause seizure due to improper lubrication even with a maximum oil level.

 Be careful of fuel spillage when transporting the engine.

Tighten the fuel tank cap securely and close the fuel strainer cock before transit.

 If the engine will be transported over a long distance or on rough roads, drain fuel off from fuel tank to prevent fuel leakage.

PRE-OPERATION CHECKS

 Carefully check fuel pipes and joints for looseness and fuel leakage. Leaked fuel creates a potentially dangerous situation.

 Check bolts and nuts for looseness. A loose bolt or nut may cause serious engine trouble.

 Check the engine oil and refill if necessary.

 Check the fuel level and refill if necessary. Take care not to overfill the tank.



Wear snug fitting working clothes when operating the engine.

 Loose aprons, towels, belt, etc., may be caught in the engine or driving train causing a dangerous situation.




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TECHNICAL PARAMETERS




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OVERALL DIMENSIONS

INSTALLATION

1) There must be a tight stationary foundation for diesel engine to avoid vibration or movement when the engine is running.

2) Be sure that the center position of output axle is correct.

3) Check whether calibration between axle hole of belt wheel and keyway shaft is correct and whether the tighten screw nut of belt wheel is tightened up.

4) When the engine is matched with other belt-driving machine, the diameter of driving wheel must be in harmony with the speed of diesel engine and the size of axle wheel of the equipped machine. Otherwise it will directly influence working condition of diesel engine, the life of the engine and the efficiency of working machine.

The diameter of driving wheel (belt wheel) can be calculated as follow:

Diameter of engine driving wheel = (Diameter of axle wheel of working machine x Speed of working machine) / Diesel Speed

5) Be sure that belt is tightened properly.

If the belt is fixed too tight, the engine will be overloaded while starting, the belt will be drawn longer, and the engine may be damaged. If the belt is fixed too loose, the belt will slip at high speed and high load.




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ALLOWED DISTANCE BETWEEN BELT WHEEL AND ENGINE

The V-axle wheel groove should be close to the engine as possible as it can be, the allowed value of L is listed in table ( options ).

Note: the value of L is shown in figure below. Please contact us or dealer if you have any questions.

TILT

The tilt must be kept within the allowed value shown:

Output shaft tilt

Allowed tilt (continuous running)

Engine tilt

Allowed tilt (continuous running)




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CONNECTION DIMENSIONS

SIZES OF OUTPUT SHAFT

MODEL SPLINE SHAFT TAPER SHAFT

SIZES OF PTO FLANGES




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DESCRIPTION OF DIESEL ENGINE PARTS

OPTIMAL ENGINE SETTINGS

VALVE OPEN AND CLOSE PHASE (UNIT: CA)

FUEL SUPPLY ADVANCE ANGLE (UNIT: CA)

VALVE CLEARANCE (UNIT: mm)




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RANGE OF TEMPERATURE, SMOKE AND PRESSURE

TORQUE FOR TIGHTENING UP THE MAIN SCREW BOLT NUTS (UNIT: Nm)

OPERATION OF DIESEL ENGINE

INSTRUCTIONS FOR SAFE OPERATION

 The fuel must be filtered by silk fabric or settled for 24 hours before used. Do not add oil into fuel tank or crank shaft case when the engine is running.

 Burnable and explosive goods should not exist around the engine, and the place for installation should be plain and ventilated.

 Do not touch muffler with your hand when the engine is running or just after it has stopped.

 The diesel engine must be run under rated power and rated speed. If you detect abnormal phenomenon, stop the engine immediately to check and remedy.

 New engine or newly maintained one must be run at low speed and low load at first 20 hours.

Do not allow to run it at high speed and full load.




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CHOICE OF FUEL, LUBRICANT AND PREPARATION BEFORE START




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Avoid overload within the first 20 working hours. If it is overloaded, its life span will be shortened.

Change the machine oil regularly.

Seite 12 © by WilTec Wildanger Technik GmbH http://www.WilTec.de



STARTING THE DIESEL ENGINE

RECOIL START

NOTE: WHEN THE ENGINE IS RUNNING, DO NOT PULL THE RECOIL HANDLE OTHERWISE

THE ENGINE MAY BE DAMAGED.




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ELECTRONIC STARTING

START

The preparation of motor-driven start type is same as manual type (Recoil type).

1) Open the fuel cock.

2) Set the speed governor lever at “start” position.

3) Turn on the start switch toward clockwise to “start” position.

4) If the engine is started, take your hand away from key switch immediately.

5) If the engine do not star after 10 seconds, wait for a While (about 15 seconds) then start again.

If the run time of motor is too long, the voltage of accumulator will drop and the motor may be damaged. Keep key switch at “ON” position when the engine is running.

ACCUMULATOR (OPTIONS)

Check the liquid level in accumulator every month, if the level is lower than the low limit mark, refill distilled water up to the upper limit mark.

If the liquid in the accumulator is not enough, the electric motor will not run for too little electric current.

So, keep the liquid level between upper and low limit marks.

The liquid will splash on near parts (which will be spoiled) if it is too much in the accumulator.




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AIDED START

If the engine is difficult to start in winter, take off the rubber seal plug and then fill 2cc machine oil into the hole.

NOTICE: Engine supplied to the torrid zone will not have the rubber plug attached. (a solid plug is presented only)

WARNING:

Do not use volatile liquid as fuel, such as gasoline etc, and do not take away the air cleaner for easy start of the engine, if you do so, it may cause explosion.

Do not pull out the plug unless filling oil. If plug is not at its correct position, rain, dust or other impurity may be sucked into the engine to cause serious failure or to damage engine parts.

RUNNING AND STOPPING THE DIESEL ENGINE

RUNNING THE ENGINE

1) Preheat the machine for three minutes at no load.

2) Set the speed governor lever of the engine at required speed position. Use the speed governor lever to control the speed of engine. Do not loosen or readjust the limit screw of speed or oil-filling limit screw, otherwise the performance of the machine may be changed.

CHECKS WHILE RUNNING THE MACHINE

1) Is there any abnormal sound or vibration?

2) Is the engines combustion bad or is the engine overspeeding?

3) Which color has the exhaust gas? Is it black as usual or too white?

If any of above phenomena is detected, stop the engine immediately and contact our local dealer.

Seite 16 © by WilTec Wildanger Technik GmbH http://www.WilTec.de



STOPPING THE ENGINE

1) At first set the speed governor lever at low speed position before stopping the engine, and the run the engine at no-load for three minutes.

2) Set the speed governor lever at “stop” position. Decrease the load gradually when stopping the engine. Sudden stop of engine will cause abnormal increasement of temperature. Do not stop engine with decompression lever.

3) Set the fuel cock at “S” (Stop position).

4) If the engine possesses motor type starter, turn the start key switch to “off” position.

5) Pull out the recoil handle slowly until pressure is felt by your hand (that means at the point of compression stroke, where the intake and exhaust valves are closed) and then let the handle back to its natural position so that it can prevent rust when the engine is not used.

NOTE: Only after stopping the engine you can pull the recoil handle, otherwise the engine may be damaged.




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TECHNICAL MAINTENANCE

DAILY CHECK AND MAINTENANCE

Check oil level of machine oil whether it is between upper and low limit. Check whether there is oil leakage phenomenon. Clean up the dirt, greasy dust on the diesel engine and its appendage and keep the engine clean. Remove malfunction detected during.

REGULAR CHECK AND MAINTENANCE

Regular check and maintenance are very important for normal operation and durability of engine. The following table indicates what is necessary and when to check the engine. Marks show special tool or technique is needed for maintenance. Please contact local dealer.

Items Time: Daily Initial 1 months or

20 hours

Check and tighten nut and screw x

Check and fill machine oil

Change machine oil x x

(First time)

Initial 3 months or

100 hours x

(Second time and later)

Clean and change oil filter

Every 6 months or

500 hours

Every year or 1000 hours x X

(Change)

Check for oil-leakage

Change the core of air filter x x

Clean fuel tank

Clean or change fuel filter

Cycle of check and maintenance will be shortened at a dusty place

Every month x

(Change)

Check nozzle

Check injection pump

Check pipeline of fuel

X

(First time) x

(Clean)

X

X x

(Change if necessary)

X Adjust valve clearance of inlet and exhaust

Grind valve holder of inlet and exhaust

Change piston ring

Check accumulator liquid

Clean the core of air filter x

(Clean) every month or 50 hours

Every month

X

X




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Change the core of the air filter: Change every 6 months or 500 hours (earlier if necessary)

NOTE: Do not use detergent to clean filter core. Use a soft brush instead.

The core of filter obstruction means that the air in combustion chamber will decrease, and the output of engine decreases, and consumption of fuel and lubricant increases. It is also difficult to start the engine. Clean the core of filter regularly.




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STORAGE FOR LONGER PERIODS

Please follow these steps if you want to store the engine for a longer period.

1) Run the machine for three minutes and then stop the machine.

2) Drain away the lubricant before the engine becomes cool and refill new machine oil.

3) Disassemble the rubber plug on the cover of rocker shaft and then fill about 2cc lubricant into it and return the plug to its position.

4) RECOIL-START-TYPE: Push down and keep the decompression lever at the non-compression point and then pull the recoil starter two or three times.

FOR MOTOR-DRIVEN START: Keep the decompression lever at non-compression point and let the engine rotate for two or three seconds with the start key switch on “start” position (Do not run the engine).

5) Pull up the decompression lever and pull out recoil starter slowly until the resistance is felt by your hand (that is at the point of compression stroke, where the intake and exhaust valves are closed, which can prevent engine from rust).

6) Clean out machine oil and dirt from the engine, and to put the engine at a dry place.




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TROUBLESHOOTING

ENGINE DOES NOT START

CAUSE

The weather is cold, machine oil becomes more adhesive

SOLUTION

Fill machine oil into crankshaft case after preheated. Fill machine oil into inlet manifold. Disassemble the connection belt of matching machine and then start the diesel engine. Stop the engine when the engine becomes hot and ressemble the belt. Start the engine again.

Malfunction of fuel system. The fuel is mixed with water.

Clean fuel tank filter and fuel pipe, change fuel.

The fuel becomes thick and easy to flow.

Use the specific fuel.

There is air in the fuel system.

Combustion is not complete.

Drain out the air and tighten each connector of fuel pipe.

The spray nozzle is not good, delivery angle is not correct, gasket of cylinder head is leaky and the pressure of compression is not enough. Fix the cause.

Diesel fuel delivery is interrupted.

Diesel fuel is too little in the fuel tank. Fill the fuel into the fuel tank. If the fuel pipe and fuel are obstructed or leaky, remedy them.

Compression pressure is not enough in the cylinder, the nut of cylinder head is not tighten or gasket of cylinder is damaged or leaky.

Tighten the nut of cylinder head, according to diagonal line sequence and standard requirement, check gasket of cylinder, if changing the gasket, tighten the nut of cylinder head once again after prerunning the diesel engine.

The gap of piston ring is too big because of wear.

Change the piston ring.

Each gap of piston rings line up and cause leakage.

Set each gap of piston at angle of 120°.

The piston rings are sticked seriously or broken.

Clean with diesel fuel or change rings.

Gas valve leakage.

The valve stem is clipped on guide pipe.

Grind the gas valves, if the vestige is too deep, please send it to factory for remedy.

Disassemble the gas valve and clean the stem and guide pipe.




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ENGINE HAS LOSS OF POWER

CAUSE SOLUTION

Malfunction of fuel system: Parts obstruction of fuel pipeline and fuel filter.

Check fuel switch, it must be opened fully. Clean fuel filter and fuel pipeline.

The pumping of fuel is not good.

Maintain or change the damaged parts of fuel pump.

Malfunction of nozzle: Injection pressure is not correct

Adjust the injection pressure.

Spray hole carbon deposit.

Needle valve adhered

Clean.

Clean or change.

Fitting is too loose between needle valve and needle valve body.

Change.

Air filter is obstructed.

Speed is not high enough.

Disassemble to clean or change the core of filter.

Check the speed of diesel engine with tachometer. Adjust the adjust high speed limit screw.

ENGINE STOPPING AUTOMATICALLY

CAUSE

Malfunction of fuel system: No fuel.

Add fuel.

SOLUTION

Fuel pipeline of filter is obstructed. Maintain or clean.

There is air in fuel system.

Drain out the air.

Needle valve of nozzle adhered.

Clean, grind the nozzle or change it if necessary.

Air filter is obstructed.

Maintain or brush off.

The load increases suddenly.

Decrease the load.

EXHAUST OF BLACK SMOKE

Over Load.

CAUSE SOLUTION

Decrease the load, if working machine is not properly matched, change it.

Fuel injection is not good.

Air is not enough or leaky.

Check the injection pressure and spray condition and correct it.

Or change the nozzle if it is damaged.

Clean the air filter, check the cause of leakage and remedy.




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EXHAUST OF BLUE SMOKE

CAUSE

The gap is too big between piston and cylinder.

Valve and guide are worn.

Change.

SOLUTION

There is machine oil, in cylinder.

Check oil level, drain away the unnecessary machine oil.

Piston, ring is clipped or worn, and its springiness is not enough or each gap of ring turns to same direction to make the machine oil go up.

Check, change the piston ring, and cross each gap position.

Remedy or change.

EXHAUST OF WHITE SMOKE

CAUSE

There is water in diesel fuel.

SOLUTION

Clean the fuel tank and diesel filter, change diesel fuel.

OTHER POSSIBLE PROBLEMS

CAUSE

Speed is sometimes high, sometimes low.

SOLUTION

Check the speed governor system whether it is nimble. Whether there is air in fuel pipeline.

Abnormal sound suddenly appears.

Check each motional part carefully.

Exhaust with black smoke suddenly.

Check fuel system, especially nozzle.

There is metal knocking sound rhythmically in the cylinder.

The fuel delivery angle is too big. Adjust it.

WIRING DIAGRAM




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Disposal regulations

EU guidelines regarding the disposal of scrap electric appliances (WEEE, 2012/19/EU) were implemented in the law related to electrical and electronic equipment and appliances.

All WilTec electric devices that fall under the WEEE regulations are labelled with the crossed-out wheeled waste bin logo. This logo indicates that this electric equipment must not be disposed with the domestic waste.

The company WilTec Technik GmbH has been registrated in the German registry EAR under the

WEEE-registration number DE45283704.

Disposal of used electrical and electronic appliances

(intended for use in the countries of the European

Union and other European countries with a separate collection system for these appliances).

The logo on the article or on its packaging points out that this article must not be treated as normal household waste but must be disposed to a recycling collection point for electronic and electrical waste equipment. By contributing to the correct disposal of this article you protect the environment and the health of your fellow men. Environment and health are threatened by inappropriate disposal.

Materials’ recycling helps reduce the consumption of raw materials.

Additional information on recycling this article can be provided by your local community, municipal waste disposal facilities or the store where you purchased the article.

Address:

WilTec Wildanger Technik GmbH

Königsbenden 12 / 28

D-52249 Eschweiler

Important notice:

The reprint or reproduction, even of excerpts, and any commercial use, even in part of this instructions manual require the written permission of WilTec Wildanger Technik GmbH.




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WilTec C173F, C178F, C178FD, C186F, C186FD, C188F, C188FD Operation Manual

Operation Manual

DIESEL ENGINE

ARTICLE 92454

_______________________________ ____________________________________

INTRODUCTION

TECHNICAL PARAMETERS

OVERALL DIMENSIONS

INSTALLATION

ALLOWED DISTANCE BETWEEN BELT WHEEL AND ENGINE

TILT

CONNECTION DIMENSIONS

SIZES OF OUTPUT SHAFT

SIZES OF PTO FLANGES

DESCRIPTION OF DIESEL ENGINE PARTS

OPTIMAL ENGINE SETTINGS

VALVE OPEN AND CLOSE PHASE (UNIT: CA)

FUEL SUPPLY ADVANCE ANGLE (UNIT: CA)

VALVE CLEARANCE (UNIT: mm)

RANGE OF TEMPERATURE, SMOKE AND PRESSURE

TORQUE FOR TIGHTENING UP THE MAIN SCREW BOLT NUTS (UNIT: Nm)

OPERATION OF DIESEL ENGINE

INSTRUCTIONS FOR SAFE OPERATION

CHOICE OF FUEL, LUBRICANT AND PREPARATION BEFORE START

STARTING THE DIESEL ENGINE

RECOIL START

ELECTRONIC STARTING

RUNNING AND STOPPING THE DIESEL ENGINE

TECHNICAL MAINTENANCE

DAILY CHECK AND MAINTENANCE

REGULAR CHECK AND MAINTENANCE

STORAGE FOR LONGER PERIODS

TROUBLESHOOTING

ENGINE DOES NOT START

ENGINE HAS LOSS OF POWER

ENGINE STOPPING AUTOMATICALLY

EXHAUST OF BLACK SMOKE

EXHAUST OF BLUE SMOKE

EXHAUST OF WHITE SMOKE

OTHER POSSIBLE PROBLEMS

WIRING DIAGRAM

Disposal regulations

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