Kärcher KMR 1250 B Service Manual page 31

KMR 1250 D
Maintenance Procedures (diesel engine)
1
Adjusting engine operating speed, diesel engine
3
6 5 4
Governor adjusting screw, diesel engine
7 8
Checking fuel solenoid valve, diesel engine
2
2
4 0 6
k H z
9
6 V
4 0
6 V
6 0
A
0 6 6 A
1 0
4 0
d
H o l
a k
P e
10
11
Operating RPM adjustment
Engine operating speed (refer to "technical spec-
ifications") is set by means of the adjusting screw
(1).
With adjustments completed, the screw must be
fixed by applying sealing lacquer.
Governor adjusting screw
CAUTION
Governor spring (6) must be hooked
into hole on governor lever (3) exactly
as shown.
Adjusting screw (4) must be fixed with
sealing lacquer. Screw may not be
tampered with as this would change
the entire engine setup.
Check fuel solenoid valve
Upon engine shutdown at the ignition switch, the
fuel solenoid valve (8) shuts off fuel supply through
the injector line (7).
If the engine fails to shut off:
– Check connecting wire (9) for secure con-
nection.
– Use magnetic field tester (11) to determine if
a magnetic field is generated upon actuating
the ignition switch (confirmation by beep tone
on magnetic field tester).
OR
– Use Clip-on ammeter (10) to determine
switching on/off at ignition switch will cause
a current at connecting wire (9).
In the absence of a current flow, the fuel solenoid
valve (8) is defective and must be replaced.
1 Adjusting screw, operating speed
2 Throttle control cable
3 Governor lever
4 Adjusting screw, governor
5 Governor spring
6 Governor spring
7 Injector line
8 Fuel solenoid valve
9 Connecting wire
10 Clip-on ammeter (Multimeter)
11 Magnetic field tester
Störungshilfe
31