Trouble shooting
BOMAG64 BPR 45/55 D, BPR 55/65 D
7.4 Engine problems
Fault Possible cause Remedy
Engine does not
start or does not
start immediate-
ly, but can be
cranked with the
starter motor
Throttle lever in stop or idle speed posi-
tion.
Set the lever to “Start” position.
No fuel at the injection pump. Fill in fuel
Check the entire fuel system systemati-
cally.
Insufficient compression
- incorrect valve clearance Check, adjust the valve clearance.
- Wear on cylinder or piston rings Have examined by a specialist.
Injection nozzle out of order Have examined by a specialist.
Additionally on
engines with
mechanical oil
pressure moni-
toring
No oil pressure Check the oil level.
Activate mechanical oil pressure monitor-
ing
With low tem-
peratures
Temperature below starting limit. Observe cold start instructions.
Fuel gelled because of insufficient cold
compatibility.
Pull the fuel hose off the fuel lift pump and
check whether fuel runs out of the fuel
pump clear and without gel.
In case of gelled fuel you should either
warm the engine up or drain the complete
fuel supply system.
Fill with a temperature resistant fuel mix-
ture.
Starter speed too low:
- Oil with too high viscosity Replace engine oil with oil of correct vis-
cosity
- Insufficiently charged battery Check the battery, if necessary consult a
specialist workshop
The starter is not
switched on or
the engine does
not crank
Fault in the electric system:
- Fuse defective
Check electric equipment and related
components or consult the our customer
service.
- Battery or other cable connections not
correctly connected.
- Cable terminals loose or oxidised
- Battery defective or not charged
- Starter defective
- Insufficiently charged battery
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