Home Products News Contact Us
Home > Supports > Diesel Engine

Maintenance of Deutz Diesel Engine BF12M1015CP

Jul. 18, 2019

6.1  Lubrication System

6.1.1 Oil Change Intervals - Deutz Diesel Engine

The first oil change after commissioning or recommissioning following repair work is carried out after 50 running hours.

The oil change intervals are depending on Lube oil quality and engine application.

Should, within a year, the engine runs less than the hours stated in the table (250 h), the oil must be changed at least once a year.

The table refers to the following conditions:

- For diesel fuel max.sulfur content >0.5% by wt.

- Continuous ambient temperature down to -10°C

If the sulfur content is from 0.5% to 1%, or the continuous ambient temperature below -10°C, the intervals between the oil changes should be halved.

In case of fuels containing sulfur >1%, ask your service representative.

Note: Change the oil with the engine shutdown but still warm (lube oil temp.approx.80°C)

6.1.2  Check Oil Level/ Changing Engine Oil Checking Oil Level

Ensure that the engine or vehicle is on a level surface. Immediately before the oil level is measured, the engine should be driven at low idling speed for approx.2 mins.

Switch off the engine

Pull out the oil dipstick

Wipe dipstick off with a non-fibrous, clean cloth

Insert dipstick up to the stop and pull it out again.

Check the oil level and if necessary fill up to the MAX level

- If the oil level just above the MIN marking, extra oil must be added.

checking oil level  Engine Oil Change                                                                                

The oil level should not be below the MIN marking.

Ensure the engine or vehicle is on a level surface

Allow the engine to warm up, Lube oil temp.approx. 80°C

Switch off the engine.

Place oil tray under the engine

Unscrew drain plug

Drain oil

Fit oil drain plug with the new gasket and tighten firmly (for torque, see 9.2)

Fill with lube oil

Deutz engine oil change

Attention: Be careful when draining hot oil-danger of scalds! Do not let used oil run into the soil but catch it in a container ready for proper disposal.

6.1.3 Renewing Oil Filter

With fitted torsion lock: loosen screws and slide clamps downwards

Undo the oil filter cartridge with commercial tool and spin off.

Catch any escaping oil with container

Attention: Beware of hot oil, danger of scalding!

Clean sealing surface of filter carrier if necessary

Lightly oil the rubber gasket of the new oil filter cartridge.

Screw in the new cartridge with finger against the gasket.

Tighten oil filter cartridge firmly

If a torsion lock is fitted, slide clamps up into position and tighten screws.

Check sealing of oil filter cartridge for leaks

renewing oil filter

6.2 Fuel System

6.2.1 Renewing Fuel Filter

Close fuel stopcock

Undo fuel filter cartridge with commercial tool and spin it off.

Catch any escaping fuel with container

Attention: When working on the fuel system. Keep open flames away! Do not smoke.

Clean sealing surface of filter carrier if necessary

Apply light film of oil or diesel fuel to rubber gasket of new fuel filer cartridge.

Screw in the new cartridge with finger firmly against the gasket.

Tighten fuel filter cartridge firmly

Open fuel stopcock

Check for leaks.

Bleeding of the fuel system is not necessary.

renewing fuel filter

6.3 Cooling System

6.3.1 Cleaning Intervals

The degree of soiling of the cooler units is dependent on the type of engine application.

The danger of soiling is increased due to residues of oil and fuel on the engine. Check extra carefully, therefore, for leakages when applications involve high dust fallout.

More severe soiling can occur, e.g. in the case of

- construction site application due to heavily dust-laden air.

- farms site application due to plenty of cutting machinery, and culture plants

In view of the varying conditions of application, the cleaning intervals must be determined from case to case. The cleaning intervals stated in the table can be taken as guide values.

Checking/cleaning intervals (Guide Values RH)

Engine Application


Ships, gensets in enclosed spaces, pumps


Vehicles on paved roads


Mobile gensets


Vehicles on construction sites and paved roads, construction equipment, compressors, underground mining equipment


Farm equipment

6.3.2 Draining Cooling System

Place tray under drain plug 1

Remove drain plug  and sealing ring below coolant inlet.

Drain coolant

Filling/bleeding as 6.3.3

Screw on drain plug 1 with new sealing ring and tighten

Check for leaks

draining cooling system

Attention: Be careful when draining hot coolant. Danger of scalding! Catch drained coolant and disposed of in accordance with anti-pollution regulations!

6.3.3 Filling/Bleeding Cooling System

Fill with coolant and bleed cooling system  according to manufacturers’ instructions

6.3.4 Cleaning engine

- with compressed air

Blow compressed air into engine, wash out loosened dirt particles from  V-space with water jet.

Make sure that drain holes 1 of V-space are free.

- With cold cleaning agent

Spray engine with commercial cold cleansing agent and let stand for about 10 min

Then spray clean with strong water jet ( do not spray water directly onto sensitive components such as alternator, starter, wiring, electronic components.)

Make sure that drain holes 1 of V-space are free.

cleaning Deutz engine

Let engine run up to operating temperature after each wet-cleaning procedure allowing any remaining water to evaporate, thus avoiding corrosion.

Contact Us
  • Adds: No.2 Xingguang Road, Guxi Industrial Park, Taixing, Jiangsu, China.
  • Tel: +86 771 5805 269
  • FAX: +86 771 5805 259
  • Cellphone: +86 134 8102 4441
                    +86 138 7819 8542
  • E-mail: sales@dieselgeneratortech.com
Follow Us

Copyright © Jiangsu Starlight Electricity Equipments Co., Ltd.All Rights Reserved | Sitemap

Contact Us