Troubleshooting - Viking MB 4 R Manuel D'utilisation

MB 4.0 R, MB 4.0 RT, MB 4.0 RV:
Displacement 149 ccm
Nominal output at 2,2 - 2800
nominal speed kW - rpm
Engine output speed 2800 rpm
Speed of cutting
utilities 2800 rpm
Drive MB 4.0 RT Front wheel
1 forward gear
Drive MB 4.0 RV Front wheel
Vario
Wheel diameter
(front) 200 mm
Wheel diameter
(rear) 200 mm
Length 140 cm
Width 57 cm
Height 107 cm
Sound emissions:
In accordance with Directive 2000/14/EC:
Guaranteed sound
power level L 94 dB(A)
WAd
In accordance with Directive 2006/42/EC:
Sound pressure level
at workplace L 82 dB(A)
pA
Uncertainty K 1 dB(A)
pA
Hand-arm vibrations:
Specified vibration characteristic in
accordance with EN 12096:
Measured value a 3,33 m/s
hw
Uncertainty K 1,67 m/s
hw
Measurement in accordance with
EN 20643
MB 4.1 RTP:
Engine type Kohler XT8
Fuel consumption 441 g/kWh
(average)
Displacement 173 ccm
0478 111 9929 B - EN
MB 4.1 RTP:
Nominal output at
nominal speed
Engine output speed
Speed of cutting
utilities
Drive
Wheel diameter
(front)
Wheel diameter
(rear)
Length
Width
Height
Sound emissions:
In accordance with Directive 2000/14/EC:
Guaranteed sound
power level L
WAd
In accordance with Directive 2006/42/EC:
Sound pressure level
at workplace L
pA
Uncertainty K
pA
Hand-arm vibrations:
Specified vibration characteristic in
accordance with EN 12096:
Measured value a
Uncertainty Khw
Measurement in accordance with
2
EN 20643
2

19. Troubleshooting

If necessary, contact a specialist
dealer; VIKING recommends VIKING
specialist dealers.
@ See engine instruction manual.
2,6 - 2800
kW - rpm
2800 rpm
2800 rpm
Front wheel
1 forward gear
210 mm
205 mm
140 cm
57 cm
108 cm
93 dB(A)
80 dB(A)
1 dB(A)
2
2,40 m/s
hw
2
1,20 m/s
Fault:
Engine does not start
Possible cause:
– Motorstop lever not pressed.
– No fuel in tank.
– Fuel line blocked.
– Inferior, dirty or old fuel in tank.
– Air filter dirty.
– Spark plug socket detached from spark
plug; ignition lead not properly fastened
to socket.
– Spark plug dirty or damaged; incorrect
electrode gap.
Remedy:
– Press motorstop lever to handlebar and
hold. ( 11.1)
– Refill fuel tank. ( 7.6)
– Clean fuel line. ,
– Always use fresh, good quality fuel,
unleaded petrol; clean
carburettor. ,
– Clean air filter. ,
– Connect spark plug socket; check
connection between ignition lead and
socket. ,
– Clean or replace spark plug; adjust
electrode gap.
Fault:
Starting problems or deteriorating engine
power.
Possible cause:
– Lawn mower housing blocked.
– Mowing at an excessively low cutting
height or propulsion speed is too high in
relation to the cutting height.
– Water in fuel tank and carburettor;
carburettor blocked.
– Fuel tank contaminated.
– Air filter dirty.
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