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Troubleshooting Information
KMR 1250 LPG
Maintenance Procedures (LPG engine)
Set CO value (LPG engine)
To adjust CO value, the following measuring de-
vices will be needed:
–
Tachometer, P/N 6.491-361
–
Exhaust analyser. Procure suitable CO an-
alyser locally; requires measuring range up
to 2% CO.
Removing muffler guard
Setting CO value w/ mixture control screw (idle
speed)
Measuring CO value inside muffler tailpipe
1. Set CO value at idle speed
–
Start engine, and set accelerator lever on
instrument panel to MIN position. Idle speed
should be between 1250 and 1550 RPM (see
also “technical specifications”).
–
Let engine warm up for a few minutes.
–
Using a floor jack, raise front of unit, and
remove muffler guard (1). There is no other
way to access the muffler outlet.
–
Measure CO value inside muffler tailpipe (2).
–
Using the mixture control screw idle speed)
(5), set CO value on gas regulator (4) (nom-
inal CO value is 0.5%).
–
With the correct adjustment, engine must run
smoothly and quietly, and provide reliable
starting.
–
With adjustment completed, fix mixture con-
trol screw (5) by applying sealing lacquer.
1
Muffler guard
2
Muffler
3
Solenoid valve
4
Gas regulator
5
Mixture control screw (idle speed)
1
2
3
4
5
