Maintenance Procedures (Lpg Engine) - Kärcher KMR 1250 B Service Manual

KMR 1250 LPG

Maintenance Procedures (LPG engine)

Adjusting operating speed
Setting CO value w/ mixture stop screw (oper.
speed)
3 Solenoid valve
4 Gas regulator
5 Mixture control screw (idle speed)
6 Carburetor stop screw
7 Mixture control screw (operating speed)
2. Set CO value at operating speed
– Set accelerator lever on instrument panel to
MAX position (operating speed).
– Measure operating RPM and adjust via stop
screw (6) on carburetor as required. Operat-
ing speed has to be between 2600 and 2700
RPM (see also "technical specifications").
– With adjustment completed, fix carburetor
stop screw (6) by applying sealing lacquer.
– Check CO value inside muffler tailpipe.
6
– Using the mixture control screw (idle speed)
(7) (operating speed), set CO value on gas
7
regulator (4) (nominal CO value is 0.5%).
– With the correct adjustment, engine must run
smoothly and quietly, and provide reliable
3
starting.
– With adjustment completed, fix mixture con-
trol screw (7) by applying sealing lacquer.
4
5
Troubleshooting Information
29