Where can I purchase original spare parts for my generator?

All consumables and original spare parts for Karjen brand of generators are available at our area dealers. Furthermore, you can notify your demands for spare parts of all kinds of engines, alternators and generators to Karjen to obtain information and quotes about them.

When and how should I maintain and check my generator?

Please respect the schedules given in the maintenance manual and user's manual delivered with your generator. Please remember that a number of factors can shorten the intervals described in said schedules: operation startup frequency, operation time, load level, quality of lubricants and fuel used, ambient temperature, dirty-dusty environment, etc. Responsibility for timely maintenance, check and replacement of consumables (lubricant, filters, V-belts, antifreeze, injectors, etc.) remains with the user. You are recommended to arrange a general check, adjustment and test every 2 or 3 months. General maintenance must be made and lubricants and filters must be replaced once a year even if the operation hours described in the schedule has not elapsed. Furthermore, you should test your generator under load for 10 to 15 minutes once a week.
Please apply to your local Karjen area dealer for reliable, accurate and economic maintenance services and checks.

What if I run my generator under low load?

Running a generator above the capacity rating indicated on its label is as much wrong as running it below related capacity rating, because its service life might be shortened and it might suffer serious damage.
This is especially true for generators having large capacity ratings. Minimum load allowed for standby generator sets is 30% of its total rating. The following problems might happen if a generator runs without load or under low load:
- Its exhaust and air suction system might suffer lubricant or fluid leaks
- Carbon deposits might accumulate on its cylinder liners or exhaust manifold
- Parts of its engine might be damaged due to wear
- Lubricant might get thinned to cause the lubrication quality to decrease
- White smoke might be emitted
What is the scope of my generator's warranty?

All Karjen products are warranted against part and manufacturing faults. Please review the documents delivered with your product or contact your dealer for detailed information about the terms and scope of warranty.

What is RPM (revolution per minute)?

It refers to the number of revolutions of your generator set per minute. It is usually 1,500 or 3,000 RPM for engines and alternators at 50Hz, and 1,800 or 3,600 RPM for 60Hz.

What will happen if I overload my generator?

Category (standby, prime, continuous) of your generator set has been indicated on its label. If a generator is used above its rating, the following problems might happen:
- Engine might overheat
- Wearing of the engine might increase
- Alternator's windings might overheat
- Lubricant might get thinned and lubrication pressure might decrease
- Service life of the engine might shorten
Does my generator emit a noise?

Exhausts, bodies and fans of all generator sets emit a noise. Depending on the type of the site where the generator is installed, certain measures are necessary. Acoustic insulation cabins provided by Karjen are an optimum solution to ensure maximum noise control.

How can I calculate the generator capacity I need?

Calculation of the generator capacity needed by a user requires specialty and depends on various factors.
Related factors include the operation category, properties of the loads, ambient conditions, and optional products.
You can get assistance from Karjen or its area dealers. Also you can visit our Power Measure page on our home homepage

What are the standard units of a generator?

Generators can contain different units and options depending on their brand.
Main units are:
- Engine
- Alternator
- Radiator
- Chassis - Daily fuel tank
- Battery
- Control panel
- Transfer panel

How can I select a site to install a generator?

Selection of a site for your generator and installation of the same must be made in a correct way to ensure it to have a long and problem-free service life. You can apply to Karjen for detailed information at every stage.
- Selection of a site: If the generator will be installed indoors, ventilation and exhaust pipes must be installed. If it will be installed outdoors, a cabin and a platform must be erected.

- Floor: The floor must be flat and smooth to prevent accumulation of water. A platform can be built to ensure a proper height. If the generator will be installed outdoors, it must be placed in a shed.

- Ventilation: Heat emitted by the alternator, engine and radiator of a generator set must be removed from the system by a fan installed between the engine and the radiator, therefore the generator must be installed in a well-ventilated room or area. Such room or area must get fresh air.
- Fuel system: Clean fuel must be fed to the generator on a continuous basis. It can be fed by manual or automatic mode.
- Exhaust system: Noise and emissions emitted by the exhaust system of the engine must be reduced and released to atmosphere in a safe way.
- Electrical system: All electrical connections must be made in accordance with the drawings delivered with the generator set and the general applicable rules.

What does the terms standby/prime/continuous refer?

- Standby power: Power generation for a limited period under variable load. It can work 200 hours a year under 70% load in average. It is used as standby power supply in case of municipal power failure. It must not be overloaded.
- Prime power: Continuous power generation under variable load. Its average load must be 70%. It can be overloaded by 10% for 1 hour every 12 hours.
- Continuous power: Continuous power generation under fixed load. Load can be 100% in average. It must not be overloaded.

What if run my generator for a purpose other than the standby/prime/continuous categories?

Depending on the circumstances, your generator might be overloaded or underloaded. In this case its service life can be shorten, its operational efficiency can decrease, its service life can shorten, and it can suffer damage, as explained elsewhere above. You should ensure your generator to be used for the category indicated on its label or explained by your dealer. This is especially important for its warranty too.

How long does my generator run with a full fuel tank?

Fuel consumption of a generator depends on its load. Karjen designs its fuel tanks in such a manner to allow the generator to run for at least 8 hours under full load. The lesser the load, the longer the operation time.

What should I do if I will not use my generator for a long time?

Every generator set must be tested under load for 10 minutes at least once a week. If you will not use your generator for a long time, please perform the instructions given in the Maintenance and User's Manual about storage. Storage is very important for the service life of generators and must be performed by an authorized service shop. After storage for a long time, the generator must be prepared for operation by an authorized service. This is especially important in terms of its warranty.


Kar Mak Makina Servis Hiz.İnş.Tic.Ltd.Şti. Tel:+90462 331 32 33 Fax:+90462 331 61 62 E-Commerce: www.karmakonline.com Address: Sanayi Mah. Devlet Karayolu Cad. Demirkırlar İş Merkezi No: 88 Ortahisar / Trabzon  E-Mail :  info@karmakmakina.com.tr

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