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Introduction to Deutz Diesel Engine BF12M1015CP

Aug. 02, 2019

Diesel Engine BF12M1015CP is innovated on the basis of Deutz AG Germany BFM1015 Engine. This Engine is characterized by compact structure, big power, light weight, low fuel consumption, low noise level, good displacement, high reliability, long lifespan, easy maintenance and etc.

BF12M1015CP is one high-speed, four-stroke,turbocharged,water-cooled diesel engine, with 90°V structure, power range 500KW740KW, rated speed 1500 r/min1800 r/min, so as to meet different customers’demands.

BF12M1015CP can be widely applied into the fields of Generator sets, Construction Machinery and so on.

1.1 Safety and Warning

Shut down the engine before carrying out repair and maintenance, and ensure the engine should not be accidentlly and suddenly started.

Stop the engine while filling fuel and coolant. Abide by the related industrial safety regulations and rules while running the engine in an enclosed space or underground

1.2 Maintenance and Care

Sound care and maintenance practices will ensure that the engine continues to meet the requirements placed on it. Recommended service internals must be observed and service and maintenance work carried out conscientiously. Special care should be taken under abnormally demanding operating conditions


2.1 Engine Model Designation

2.1.1 Rating Plate

The model designation, the engine serial number        

And the performance data are stamped on the rating plate. While purchasing the spare parts, pls show the engine model and engine serial number.

2.1.2 Position of Rating Plate

The rating plate C is affixed to the crankcase.

2.1.3 Engine Serial Number

The engine serial number is engraved on the crankcase itself (as the arrow in the pic) and on the rating plate.

2.1.4 Numbering of Cylinders

The cylinders are numbered consecutively from either cylinder bank A or B, beginning at flywheel end.

Deutz Engine Model Designation

2.2 Engine Illustration

2.2.1 Cylinder A-BF12M1015CP

Deutz engine BF12M1015CP

1 Turbocharger

2 Exhaust manifold

3 crankcase

4 starter

5 oil filler neck

6 oil pan

7 oil filter

8 V-belt pulley and vibration damper

9 coolant connection from heat exchanger to engine

10 oil cooler

11 cooling fan

12 intake airpipe manifold (come out of intercooler)

13 intake airpipe manifold (go into intercooler)

14 flame-type heater plug sytem(A-side)


2.2.2 Cylinder B-BF12M1015CP

Deutz engine BF12M1015CP Cylinder

15 Flame-type heater plug sytem (B-side)

16 oil filler neck

17 cylinder head

18 alternator

19 oil dipstick

20 SAE housing

21 Flywheel

22 Air Compressor

23 Fuel Connecting line


2.3 Lubrication System Illustration

2.3.1 BF12M1015CP Lube Oil Circuit Schema (Wet Sump Lubrication)

Deutz engine Lubrication System

1 oil pan

2 intake pipe

3 oil pump

4 overpressure relief valve

5 oil cooler

6 spin-on oil filter

7 main oil bores

8 main bearing

9 big-end bearing

10 camshaft bearing

11 oil supply to injection pump

12 injection pump

13 return oil from injection pump to crankcase

14 line to spray nozzle

15 spray nozzle with pressure-holding valve for piston cooling

16 tappet with control groove for pulse lubrication of rocker arms

17 pushrod, oil supply to rocker arm lubrication

18 rocker arm

19 oil return bore in cylinder head to crankcase

20 oil pressure sensor/oil pressure switch

21 oil line to exhaust turbocharger

22 exhaust turbocharger

23 oil to compressor (hydr.pump)

24 compressor

25 hydraulic pump

26 pressure-holding valve (adjustable)

27 oil return line from compressor (hydr.pump)to crankcase

28 Oil return line from turbocharger to crankcase

3.1 Commissioning

3.1.1  Filling in Engine Oil

As a rule, the engines are delivered without oil filling. Fill in lube oil through the oil filler neck (arrow).

3.1.2 Filling Oil Bath Air Cleaner With Engine Oil

Fill engine oil into bowl 1 of oil bath air cleaner (if fitted) up to the arrow mark.

3.1.3 Filling the Fuel Tank

Use only commercial-grade diesel fuel. For fuel quality grade.see 4.2

Use summer- or winter-grade fuel, depending on the ambient temperature

3.1.4 Filling/Bleeding Cooling System

Connect coolant inlet 1 and coolant outlet 2 to external coolant tank.

Fill in coolant into cooling system

Start engine and run up to normal operating temperature until thermostat opens (line 2 warms up)

Check coolant level in external cooling system, top up coolant if necessary.


3.1.5 Other Preparations

Check battery and battery cable connections.

Trial run

- 10 min. Upon completing the preparations, run the engine for a short trial run of about 10 minutes under low load.

During and after trial run

- Check the engine for leaks

After the engine has been stopped

- Check oil level and top up if necessary, see 6.1.2

- Retense V-belts, see 6.5


During the breaking-in phase, it is recommended to check the oil level twice a day. After the breaking-in phase, checking once a day will be sufficient.

3.2  Starting

3.2.1 Electric Starting

Before starting, make sure that nobody is standing in the immediate vicinity of the engine or its driven machine.

After repair work, Check if all removed guards are put back in place and all tools are taken away from the engine.

When starting with flame-type heater plugs, do not use any other additional starting aids (e.g. Injection with start pilot)

Do not actuate the starter for more than 20 seconds at a time. If the engine does not start, wait one minute before repeating the attempt.

If the engine does not start after two attempts, trace the cause with the aid of the Diagnosis Chart (see 7.1)

3.3 Monitoring Systems

3.3.1 Engine Oil Pressure

Oil Pressure Pilot Lamp

The oil pressure pilot lamp lights up with operating voltage applied and engine shut off.

The oil pressure pilot lamp must go out when the engine is running.

Oil Pressure Gauge

The pointer of the oil pressure gauge must not indicate the minimum oil pressure (see 9.1).

3.3.2 Coolant Temperature

The pointer of the coolant temperature indicator should remain in the green sector and enter the yellow-green sector only in exceptional cases. If the pointer enters the orange sector, the engine is overheating. Turn it off and establish the cause from the Diagnosis Chart (see 7.1).

Engine oil pressure

3.3.3 Coolant Level

Lamp of coolant level indicator lights up (contact via float switch/level sensor when min. Coolant level has been reached):

Turn engine off and establish cause from the Diagnosis Chart (see 7.1)

Functional check of coolant level:

insert key into position 1 or 2 (Float switch or leel sensor) Pilot lamp lights up for about 2 seconds.

- Coolant level is ok: lamp goes out.

- Coolant level is not ok: lamp does not go out.

3.3.4 Lube Oil Level

Lamp of lube oil level indicator lights up (contact via float switch/level sensor when min.lube oil has been reached.)

Turn engine off and establish cause from the Diagnosis Chart(see 7.1)

Functional check of lube oil level:

insert key into position 1 or 2 (Float switch or leel sensor) Pilot lamp lights up for about 2 seconds.

- Lube oil level is ok: lamp goes out.

- Lube oil level is not ok: lamp does not go out

3.4 Mechanical Shutdown

3.4.1 Mechanical Shutdown

Set speed control lever 1 to low speed position

Actuate shutdown lever 2 until engine comes to standstill. Charging-current and oil pressure pilot lamps light up when engine has come to standstill

3.4.2 Electric Shutdown

Turn  key counter-clockwise (to position 0) and pull it off. Pilot lamps go out.

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