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Trouble shooting
BOMAG
69
BPR 70/70 D
6.2
Engine problems
Fault
Possible cause
Remedy
Engine does not
start or does not
start immediate-
ly, but can be
cranked with the
crank handle
Throttle lever in stop or idle speed position
Shift the lever to “Start” position
no fuel at the injection pump
Fill in fuel
check the entire fuel system systematical-
ly.
If no result:
- check supply to engine
- check fuel filter
- check function of fuel lift pump
insufficient compression:
- incorrect valve clearance
Check valve clearance, correct if neces-
sary
- Valves worn
see shop manual
- Wear on cylinder or piston rings
see shop manual
Injection nozzle out of order
see shop manual
additionally on
engines with
mechanical oil
pressure moni-
toring
no oil pressure
Check oil level
Activate mechanical oil pressure monitor-
ing
With low tem-
peratures
Temperature below starting limit
Observe cold start instructions
Fuel slurry caused by insufficient low tem-
perature resistance
Pull the fuel hose off the fuel lift pump and
check whether fuel runs out of the fuel
pump clear and without clouds.
In case of cloudy fuel you should either
warm the engine up or drain the complete
fuel supply system.
Fill with a temperature resistant fuel mix-
ture.
Starting speed too low:
- oil with too high viscosity
- insufficiently charged battery
Replace engine oil with oil of correct vis-
cosity
Check the battery, if necessary consult a
specialist workshop
Go
to
Discount-Equipment.com
to
order
your
parts