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Here’s a handy guide to dashboard symbols so that you’ll never be confused again!
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Here’s a handy guide to dashboard symbols so that you’ll never be confused again!
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Experiencing difficulty opening your BMW X3's hood? This guide explores potential issues like mechanical obstruction, hood release mechanism failure, electrical problems, and emergency release malfunctions. Troubleshooting tips include basic checks, clearing obstructions, applying pressure, and using the emergency release.
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𝘼𝙣𝙩𝙞𝙦𝙪𝙚 𝙋𝙡𝙖𝙨𝙩𝙞𝙘 𝙏𝙧𝙖𝙙𝙚𝙧𝙨 𝙞𝙨 𝙫𝙚𝙧𝙮 𝙛𝙖𝙢𝙤𝙪𝙨 𝙛𝙤𝙧 𝙢𝙖𝙣𝙪𝙛𝙖𝙘𝙩𝙪𝙧𝙞𝙣𝙜 𝙩𝙝𝙚𝙞𝙧 𝙥𝙧𝙤𝙙𝙪𝙘𝙩𝙨. 𝙒𝙚 𝙝𝙖𝙫𝙚 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙥𝙡𝙖𝙨𝙩𝙞𝙘 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙪𝙨𝙚𝙙 𝙞𝙣 𝙖𝙪𝙩𝙤𝙢𝙤𝙩𝙞𝙫𝙚 𝙖𝙣𝙙 𝙖𝙪𝙩𝙤 𝙥𝙖𝙧𝙩𝙨 𝙖𝙣𝙙 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙛𝙖𝙢𝙤𝙪𝙨 𝙘𝙤𝙢𝙥𝙖𝙣𝙞𝙚𝙨 𝙗𝙪𝙮 𝙩𝙝𝙚 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙛𝙧𝙤𝙢 𝙪𝙨.
Over the 10 years, we have gained a strong foothold in the market due to our range's high quality, competitive prices, and time-lined delivery schedules.
Core technology of Hyundai Motor Group's EV platform 'E-GMP'Hyundai Motor Group
What’s the force behind Hyundai Motor Group's EV performance and quality?
Maximized driving performance and quick charging time through high-density battery pack and fast charging technology and applicable to various vehicle types!
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IBS monitors and manages your BMW’s battery performance. If it malfunctions, you will have to deal with an array of electrical issues in your vehicle. Recognize warning signs like dimming headlights, frequent battery replacements, and electrical malfunctions to address potential IBS issues promptly.
What Does the PARKTRONIC Inoperative, See Owner's Manual Message Mean for You...Autohaus Service and Sales
Learn what "PARKTRONIC Inoperative, See Owner's Manual" means for your Mercedes-Benz. This message indicates a malfunction in the parking assistance system, potentially due to sensor issues or electrical faults. Prompt attention is crucial to ensure safety and functionality. Follow steps outlined for diagnosis and repair in the owner's manual.
Comprehensive program for Agricultural Finance, the Automotive Sector, and Empowerment . We will define the full scope and provide a detailed two-week plan for identifying strategic partners in each area within Limpopo, including target areas.:
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• Target Areas: Polokwane, Tzaneen, Thohoyandou, Makhado, and Giyani.
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• Scope: Develop collaborations with automotive service providers to improve service quality and business operations.
• Target Areas: Polokwane, Lephalale, Mokopane, Phalaborwa, and Bela-Bela.
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• Scope: Provide business support support and training to women-owned businesses, promoting economic inclusion.
• Target Areas: Polokwane, Thohoyandou, Musina, Burgersfort, and Louis Trichardt.
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Women and Youth are encouraged to apply even if you don't fall in those sectors.
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Things to remember while upgrading the brakes of your carjennifermiller8137
Upgrading the brakes of your car? Keep these things in mind before doing so. Additionally, start using an OBD 2 GPS tracker so that you never miss a vehicle maintenance appointment. On top of this, a car GPS tracker will also let you master good driving habits that will let you increase the operational life of your car’s brakes.
2. Service Training
BW 141 - 154 AD/AC-4
Table of contents
Foreword A 1
Documentation A 2
General A 3
Technical data and adjustment values B 1
Maintenance C1
Maintenance schedule C2
DEUTZ diesel engine D 1
Operating side/service side D 2
Starter side D 3
Lubrication oil circuit D 4
Coolant circuit D 5
Fuel system D 6
Checking and adjusting the valve clearance D 11
Plug-type injection pump D 14
Electrical components and measuring points on the engine D 30
Travel drive 141/151-4 E 1
Travel pump E 3
Charge pressure relief valve E 9
High pressure relief valve E 10
Pressure override E 12
Travel motors E 15
Drum reduction gear E 18
Test and adjustment points, travel system E 19
Trouble shooting in travel system E 24
Travel drive 154-4 F 1
Travel motors F 7
Drum reduction gear F 8
Flow divider F 11
Test and adjustment points F 19
3. Service Training
BW 141 - 154 AD/AC-4
Vibration G 1
Vibration pump G 3
High pressure relief valves G 6
Control G 7
Vibration motor G 8
Vibration shut-off valve G 9
Drum BW 141 AD-4 G 11
Drum BW 154 AD-4 G 12
Test and adjustment points, vibration system G 14
Trouble shooting in vibration system G 18
Steering system H 1
Steering pump H 3
Priority valve H 4
Steering valve H 5
Articulated joint H 8
Test and adjustment points H 11
Trouble shooting steering system H 14
Working hydraulics - crab walk J 1
Crab walk valve J 2
Test and adjustment points J 3
Blower drive K 1
Water sprinkler system L 1
AC-variant M 1
Electrics with module description O 1
Wiring diagram
Hydraulic diagram
4. Service Training
BW 141 - 154 AD/AC-4 - A 1 -
Foreword
Reliable construction equipment is of greatest advantage for all parties involved:
• for the customer/user it is a basis for an exact calculation of utilization periods and the completion of
projects as scheduled.
• in the rental business it means that the equipment can be reliably used and planned without having
to stock a large number of stand-by machines.
• for the manufacturer it means that customers are satisfied, provides him with a good image and gives
him a feeling of confidence.
It is BOMAG’s philosophy to design and produce the machines with highest possible reliability. This
aspect of simple and easy maintenance was one of the key issues when developing and designing the
machine:
• the location of components in the machine eases maintenance work,
• the high quality standard of BOMAG is the basis for the considerable extension of the service and
maintenance intervals.
• the After Sales Service of BOMAG, including excellent operating and maintenance instruction
manuals, high quality training courses and on-site machine demonstrations helps the customer to
maintain their machines in good condition over a long period of time.
Permanent training of BOMAG’s own service personnel as well as the service personnel of BOMAG
Profit Centres and dealers is therefore a general prerequisite for BOMAG’s excellent world-wide service.
This program of permanent training is only possible with appropriate and up-to-date training material for
trainers as well as persons attending the training courses.
This training manual has not only been written as a support for the professional work of the trainer, but
also for the trainees attending these training courses.
The different levels of product training demand, that the training performed by BOMAG, its Profit Centres
or its dealers reflects the high quality of the training conducted at the Training Centre at BOMAG in
Boppard. For this reason we invested a lot of time in the preparation of these materials .
The structure of this training manual enables us to change or up-date individual chapters in case of
alterations to the machine.
5. Service Training
BW 141 - 154 AD/AC-4 - A 2 -
Documentation
For the BOMAG machines described in this training manual the following documentation is additionally
available:
Attention!
The currently valid part numbers for the documents can be taken from the Doclist or the
Customer Service page in the BOMAG (BOMAG Secured Area) in accordance with the serial
number of the machine.
1. Operating and maintenance instructions
2. Spare parts catalogue
3. Wiring diagram *
4. Hydraulic diagram *
5. Repair instructions
6. Service Information
* The document versions valid at the date of printing are part of this training manual.
6. Service Training
BW 141 - 154 AD/AC-4 - A 3 -
General
The tandem rollers of series BW 141 - 154 AD/AC-4 are high performance machines for the extremely
difficult use in asphalt compaction and earth work.
The machines of this series are powered by engine oil cooled Deutz diesel engines of series BF4M
2011.
Engine driven pumps transfer the engine output power via hydrostatic circuits for travel and vibration
systems to the drums. These hydrostatic drives ensure lowest possible power losses and a high
efficiency. The steering and crab-walk functions as well as the additional edge cutter option are supplied
by gear pumps driven by the auxiliary engine output.
The machines are equipped with a 2 cylinder operated articulated steering and a crab-walk function with
a separate hydraulic cylinder to offset the front frame laterally relative to the rear frame.
For the first time a machine of this product range is equipped with axial piston drum drive motors with
reduction gears The discs of the parking brakes are integrated in the reduction gears. When starting the
engine and opening the brake valve the brakes are relieved by charge pressure. When closing the brake
valve or when shutting the engine down the brakes are automatically applied by spring pressure. These
parking brakes should not be used as service brake, because the deceleration effect is extremely high
and the braking process may damage the brake discs.
The drums are equipped with an exciter shaft and two vibrator units each. The exciter shafts are driven
by hydraulic motors via Bowex couplings. Vibration of the drum is caused by the centrifugal forces
generated by the exciter shaft mounted eccentric weights.
Since the machines are designed for operation with two different frequencies and amplitudes, the sense
of rotation of the exciter shaft can be reversed. Changing the sense of rotation also changes the position
of the change-over weights inside the eccentric weights on the exciter shafts.
This also changes the centrifugal force and the amplitude. The rotary speed of the exciter shaft is also
different to both directions of rotation. This means, that the vibration frequency will also change.
In combination with the hydraulic vibration drive the change-over weights are arranged in such a way,
that the high amplitude works with low frequency and vice-versa.
The combination of high amplitude and low frequency is particularly suitable for compaction work in
earthwork with high lift heights and for preliminary compaction. For soil compaction the combination of
low amplitude and high frequency should be used for the finishing passes.
The individual machine functions like travel system, vibration and steering are described in more detail
in the corresponding chapters. Optional equipment, such as BAM, BOMAG Asphalt Manager
(Variomatic) and chip spreader etc. is not included in this training manual.
7. Service Training
BW 141 - 154 AD/AC-4 - B 1 -
Technical data and adjustment values
The following pages contain technical data valid at the date of printing (see front page of this manual).
Attention!
The currently valid technical data and adjustment values can be taken from the BOMAG Intranet
or Extranet (BOMAG Secured Area) in accordance with the serial number of the machine.
8. BOMAG Central Service - Technical data and adjustment values
Status: 2005-06-22
Product type: BW 141 AD Serie 4
Type No.: 920 00
Serial numbers from: 101 920 00 1001
Engine:
Type: BF4M 2011
Combustion principle: 4-stroke-Diesel
Cooling: Oil
Number of cylinders: 4
Power acc. to ISO 9249: 60 kW
Power data at nominal speed of: 2500 1/min
Low idle speed: 850 +/-150 1/min
High idle speed: 2700+/-50 1/min
Spec. fuel consumption: 245 g/kWh
Valve clearance, inlet: 0,3 mm
Valve clearance, outlet: 0,5 mm
Opening pressure, injection valves: 210 +8 bar
Starter voltage: 12 V
Travel pump:
Type: A4VG 56 HW/32
System: Axial piston-swash plate
Max. displacement: 56 cm3
/U
Max. flow ratio: 136,1 l/min
High pressure limitation: 440 bar
Pressure override: 400+/-10 bar
Charge pressure, high idle: 25 +3/-1 bar
Travel motors:
Type: A2 FE 32
Number: 2
System: Axial piston
Displacement stage 1: 32 cm3
/U
Perm. leak oil quantity: 2 l/min
Flushing quantity: 5 l/min
Reduction gear, drum:
Type: 705 C 2H
Transmission ratio: 48
Number: 2
Vibration pump:
Type: A10VG 45 EZ
System: Axial piston-swash plate
Max. displacement: 45 cm3
/U
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9. Starting pressure: 360+/-20 bar
Operating pressure, soil dependent: ca.100 bar
Vibration motor:
Type: A4FM 22
Number: 2
System: Axial piston-swash plate
Displacement: 22 cm3
/U
Frequency: 40/60 Hz
Amplitude: 0,7/0,34 mm
Steering and charge pump:
Type: HY/ZFFS11/11+8
System: Tandem-/Gear pump
Displacement: 11 / 8 cm3
/U
Max. steering pressure: 200 +/-5 bar
Steering valve:
Type: OSPF 400 LS
System: Rotary valve
Filling capacities:
Engine oil: 13 l (SAE 15W-40, API CG-4 (for details see
maintenance manual))
Hydraulic oil: 60 l (HVLP 46 VI 150)
Vibration bearing housing: 7,5 l (SAE 15W-40, API SJ/CF)
Reduction gear, drum: 1,5 l (SAE 90 EP, API GL 5)
AC refrigerant: 1100 g (R 134a)
Compressor oil (filling the system): 100 ml (PAG Öl)
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10. BOMAG Central Service - Technical data and adjustment values
Status: 2005-06-23
Product type: BW 154 AD Serie 4
Type No.: 920 31
Serial numbers from: 101 920 31 1001
Engine:
Type: BF4M 2011
Combustion principle: 4-stroke-Diesel
Cooling: Oil
Number of cylinders: 4
Power acc. to ISO 9249: 60 kW
Power data at nominal speed of: 2500 1/min
Low idle speed: 850 +/-150 1/min
High idle speed: 2700+/-50 1/min
Spec. fuel consumption: 245 g/kWh
Valve clearance, inlet: 0,3 mm
Valve clearance, outlet: 0,5 mm
Opening pressure, injection valves: 210 +8 bar
Starter voltage: 12 V
Travel pump:
Type: A4VG 56 HW/32
System: Axial piston-swash plate
Max. displacement: 56 cm3/U
Max. flow ratio: 136,1 l/min
High pressure limitation: 440 bar
Pressure override: 400+/-10 bar
Charge pressure, high idle: 25 +3/-1 bar
Travel motors:
Type: A2 FM 32
Number: 4
System: Axial piston
Displacement stage 1: 32 cm3/U
Perm. leak oil quantity: 2 l/min
Reduction gear, drum:
Type: GFT 7 G2801
Transmission ratio: 25,1
Number: 4
Vibration pump:
Type: A10VG 45 EZ
System: Axial piston-swash plate
Max. displacement: 45 cm3/U
Starting pressure: 360+/-20 bar
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11. Operating pressure, soil dependent: ca.100 bar
Vibration motor:
Type: A4FM 22
Number: 2
System: Axial piston-swash plate
Displacement: 22 cm3/U
Frequency: 40/60 Hz
Amplitude: 0,7/0,34 mm
Steering and charge pump:
Type: HY/ZFFS11/11+8
System: Tandem-/Gear pump
Displacement: 11 / 8 cm3/U
Max. steering pressure: 200 +/-5 bar
Steering valve:
Type: OSPF 400 LS
System: Rotary valve
Filling capacities:
Engine oil: 13 l (SAE 15W-40, API CG-4 (for details see
maintenance manual))
Hydraulic oil: 60 l (HVLP 46 VI 150)
Vibration bearing housing: 7,5 l (SAE 15W-40, API SJ/CF)
AC refrigerant: 1100 g (R 134a)
Compressor oil (filling the system): 100 ml (PAG Öl)
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12. BOMAG Central Service - Technical data and adjustment values
Status: 2005-06-22
Product type: BW 154 AD AM Serie 4
Type No.: 920 51
Serial numbers from: 101 920 51 1001
Engine:
Type: BF4M 2011
Combustion principle: 4-stroke-Diesel
Cooling: Oil
Number of cylinders: 4
Power acc. to ISO 9249: 60 kW
Power data at nominal speed of: 2500 1/min
Low idle speed: 850 +/-150 1/min
High idle speed: 2700+/-50 1/min
Spec. fuel consumption: 245 g/kWh
Valve clearance, inlet: 0,3 mm
Valve clearance, outlet: 0,5 mm
Opening pressure, injection valves: 210 +8 bar
Starter voltage: 12 V
Travel pump:
Type: A4VG 56 HW/32
System: Axial piston-swash plate
Max. displacement: 56 cm3
/U
Max. flow ratio: 136,1 l/min
High pressure limitation: 440 bar
Pressure override: 400+/-10 bar
Charge pressure, high idle: 25 +3/-1 bar
Travel motors:
Type: A2 FM 32
Number: 4
System: Axial piston
Displacement stage 1: 32 cm3
/U
Perm. leak oil quantity: 2 l/min
Reduction gear, drum:
Type: GFT 7 G2801
Transmission ratio: 25,1
Number: 4
Vibration pump:
Type: A10VG 45 EZ
System: Axial piston-swash plate
Max. displacement: 45 cm3
/U
Starting pressure: 360+/-20 bar
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13. Operating pressure, soil dependent: ca.100 bar
Vibration motor:
Type: A4FM 28
Number: 1
System: Axial piston-swash plate
Displacement: 28 cm3
/U
Frequency: 46 Hz
Amplitude: 0,2 / 0,55 mm
Vibration motor, VARIOMATIC:
Type: A4FM 28
System: Axial piston-swash plate
Displacement: 28 cm3
/U
Frequency: 46 Hz
Amplitude: 0,84 mm
Steering and charge pump:
Type: U 1636 11+8+2,5
System: Tandem-/Gear pump
Displacement: 11 / 8 / 2,5 cm3/U
Max. steering pressure: 200 +/-5 bar
Steering valve:
Type: OSPF 400 LS
System: Rotary valve
Swashing motor, VARIO:
Type: STF04-000-013
System: piston-gear rack
Filling capacities:
Engine oil: 13 l (SAE 15W-40, API CG-4 (for details see
maintenance manual))
Hydraulic oil: 60 l (HVLP 46 VI 150)
Vibration bearing housing: 7,5 l (SAE 15W-40, API SJ/CF)
Drum filling VARIO: 2 x 30 l (50% Water, 50% Anti -freeze agent on
Ethane-diol-basis)
AC refrigerant: 1100 g (R 134a)
Compressor oil (filling the system): 100 ml (PAG Öl)
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14. Service Training
BW 141 - 154 AD/AC-4 - C 1 -
Maintenance
The products of series BW 141...154 AD/AC-4 are high performance machines for the extremely difficult
use in asphalt compaction and earth work. To be able to meet these demands the machines must
always be ready to be loaded up to their limits. Furthermore, all safety installations, protections and
guards must always be in place and fully functional.
Thorough maintenance of the machine is therefore mandatory. This not only guarantees a remarkably
higher functional safety, but also prolongs the lifetime of the machine and of important components.
The time required for thorough maintenance is only minor when being compared with the malfunctions
and faults that may occur if these instructions are not observed.
The maintenance intervals are given in operating hours. It is quite obvious that with each maintenance
interval all the work for shorter preceding intervals must also be performed. During the 2000 hours
interval you must also perform the work described for the service intervals after 50, 250 and 500 hours.
During maintenance work you must only use the fuels and lubricants mentioned in the table of fuels and
lubricants (oils, fuels, grease etc.).
This training manual is handed out together with the presently valid operation and maintenance manual.
For the individual maintenance intervals and the description of the maintenance work involved please
refer to these maintenance instructions.
15. Maintenance
BOMAG 63
BW 141 AD-4
5.3 Fuels, lubricants and filling
capacities
Assembly Fuel or lubricant Quantity approx.
Summer Winter Attention
Observe the level marks
Engine Engine oil
ACEA: E3-96/E5-02 13 litres without oil filter
API: CG-4/CH-4
SAE 10W/40 (-20 °C to +30 °C)
SAE 10W/40 (-10 °C to +40 °C)
SAE 30 SAE 10W
(+5 °C to +30 °C) (-5 °C to -30 °C)
SAE 40 SAE 20W/20
(+25 °C to +40 °C) (-10 °C to +10 °C)
Fuel
Diesel Winter diesel fuel (down
to -12 °C)
160 litres
Hydraulic system Hydraulic oil (ISO), HV46, kinem. viscosity
46 mm2/s at 40 °C or
ester based biodegradable hydraulic oil
60 litres
Sprinkler system Water Anti-freeze mixture and
water *
800 litres
Drum SAE 15W/40 5,3 litres (BW 141 AD-4)
- Exciter shaft tube 6,3 litres (BW 151 AD-4)
6,3 litres (BW 151 AC-4)
Travel gear, drum SAE 80W-90, API GL5 approx. 1.5 litres
Steering chains High pressure grease (lithium saponified) as required
Oscillating articulated joint High pressure grease (lithium saponified) as required
* Mix water and anti-freeze agent by following the instructions of the manufacturer
16. Maintenance
BOMAG
64 BW 141 AD-4
5.4 Running-in instructions
The following maintenance work must be per-
formed when running in new machines or
overhauled engines:
! Caution
Up to approx. 250 operating hours check the
engine oil level twice every day.
Depending on the load the engine is subjected
to, the oil consumption will drop to the normal
level after approx. 100 to 250 operating hours.
Maintenance after 50 operating hours
l Check the engine for leaks.
l Retighten bolted connections on intake and
exhaust tubes, oil sump and engine mounts.
l Retighten the bolted connections on the ma-
chine.
Maintenance after 250 operating hours
l 1st oil change in drum drive gear.
Maintenance after 500 operating hours
l 2nd oil change in drum drive gear.
Special intervals
l Switch the heating system*
on every month for
about 10 minutes.
l Switch the air conditioning* on every month for
about 10 minutes.
* Optional equipment
17. Maintenance
BOMAG 65
BW 141 AD-4
5.5 Maintenance chart
No. Maintenance work Remark
Running-in
instructions
after
250
operating
hours
every
10
operating
hours,
daily
every
250
operating
hours
every
500
operating
hours
every
1000
operating
hours
every
2000
operating
hours
every
3000
operating
hours
every
5000
operating
hours
as
required
5.6 Check the engine oil level Dipstick mark X
5.7 Check the water separator X
5.8 Check the fuel level X
5.9 Check the hydraulic oil level Inspection
glass
X
5.10 Check the water level X
5.11 Clean the cooling fins on engine
and hydraulic oil cooler
X
5.12 Check the oil level in vibrator shaft
tube
X
5.13 Change the engine oil*
min. 1x per year X
5.14 Change the engine oil filter car-
tridge**
min. 1x per year X
5.15 Servicing the air conditioning***
(summer operation)
X
5.16 Service the battery Pole grease X
5.17 Change the fuel filter cartridge X
5.18 Change the fuel pre-filter cartridge X
5.19 Change the oil in the drum drive
gear
X
5.20 Check, tension, lubricate the steer-
ing chain
X
5.21 Check the engine mounts X
5.22 Check, tension, replace the V-belt X
18. Thank you very much for
your reading. Please Click
Here. Then Get COMPLETE
MANUAL. NO WAITING
NOTE:
If there is no response to
click on the link above,
please download the PDF
document first and then
click on it.
19. Maintenance
BOMAG
66 BW 141 AD-4
5.23 Checking, tensioning, replacing
the refrigerant compressor V-belt
X
5.24 Changing the oil in the vibrator
shaft tube
X
5.25 Change hydraulic oil and breather
filter****
at least every 2
years
X
5.26 Change the hydraulic oil filter***** at least every 2
years
X
5.27 Grease the articulated joint******
at least every 2
years
X
5.28 Replace the injection valve X
5.29 Service the combustion air filter min. 1x per
year,
safety cartridge
at least every 2
years
X
5.30 Clean the water tank X
5.31 Clean the water filter X
5.32 Water sprinkler system, mainte-
nance in the event of frost
X
5.33 Fill the provision tank for the wind-
screen washer system
X
5.34 Adjusting the scrapers X
5.35 Tightening torques X
5.36 Engine conservation X
* Oil change intervals depend on quality of oil and fuel (sulphur content)
** Oil change intervals depend on quality of oil and fuel (sulphur content)
*** Optional equipment
**** Also in case of repair in the hydraulic system.
*****Also in case of repair in the hydraulic system.
******Also in case of repair in the hydraulic system.
No. Maintenance work Remark
Running-in
instructions
after
250
operating
hours
every
10
operating
hours,
daily
every
250
operating
hours
every
500
operating
hours
every
1000
operating
hours
every
2000
operating
hours
every
3000
operating
hours
every
5000
operating
hours
as
required
20. Service Training
BW 141 - 154 AD/AC-4 - D 1 -
Deutz diesel engine
Single drum rollers of series BW141/154 AD-4 are powered by a Deutz diesel engine of product range
BF4M 2011. In contrast to the engines 1011/1012 previously used by BOMAG, this engine comes with
external oil cooling, i.e. a separate oil cooler with a hydraulically driven fan, instead of the well known
integrated oil cooler/fan system.
This automotive engine is characterized by the following features:
• short and compact design,
• low noise level,
• low vibration running,
• low fuel consumption,
• low exhaust emissions,
• good access to all service points and
• extended maintenance intervals (5000 h) for toothed timing belt, in comparison to the predecessor
1011 F, by installation of an automatic tensioning device and improved enclosure of the belt drive.
The engine is a 4-cylinder 4-stroke inline engine with direct fuel injection.
The combustion method with direct fuel injection enables the use of a less expensive casting for the
cylinder head, highest possible utilization of fuel and minimum heat transfer to the coolant.
This in turn enables the use of a smaller and more compact radiator.
Both the crankcase with cylinders as well as the cylinder head of this ebngine are made of a cast iron
alloy. This provides strength and ensures high wear resistance.
The forged steel conrods are fitted with compensation weights near the conrod bearing seats. This
weight compensates manufacturing tolerances with respect to weight and centre of gravity.
The pistons are made of an aluminium alloy. The combustion trough has been specially designed for
efficient combustion. All pistons are fitted with three piston rings and are lubricated by an oil mist.
Each cylinder is fitted with one intake and one exhaust valve. The valve guides are shrunk into the
cylinder head.
21. Service Training
BW 141 - 154 AD/AC-4 - D 2 -
Control side
Fig. 1: Control side BFM 2011
1 Suction tube 2 without fan and fan bracket
3 V-belt pulley on crankshaft 4 Narrow V-belt
5 Fuel shut-off solenoid 6 Toothed belt cover
7 Shut-down lever 8 Control lever
9 Oil filler neck (on side of crankcase) 10 Oil dipstick
11 Fuel lift pump 12 Fuel filter
13 Port for oil heating 14 Lubrication oil filter
15 Injection pumps 16 Oil cooler port
17 Injection valves 18 Fuel return line