Viking MB 750 KS Manuel D'utilisation page 50

MB 750.2 KS:
In accordance with
Directive
2000/14/EC:
Guaranteed sound
power level L 96 dB(A)
WAd
In accordance with
Directive
2006/42/EC:
Sound pressure level
at workplace L 86 dB(A)
pA
Uncertainty K 1 dB(A)
pA
L/W/H 173/53/106 cm
Weight 62 kg
MB 755.2 KS:
In accordance with
Directive
2000/14/EC:
Guaranteed sound
power level L 98 dB(A)
WAd
In accordance with
Directive
2006/42/EC:
Sound pressure level
at workplace L 89 dB(A)
pA
Uncertainty K 1 dB(A)
pA
L/W/H 173/57/106 cm
Weight 62 kg
19. Troubleshooting
If necessary, contact a specialist
dealer; VIKING recommends VIKING
specialist dealers.
@ See engine instruction manual.
48
Fault:
Engine does not start
Possible cause:
– Throttle lever set to Stop position
– Choke is not actuated
– No fuel in tank
– Inferior, dirty or old fuel in tank
– Insufficient flow of fuel
– Spark plug dirty or damaged
– Incorrect electrode gap
– Spark plug socket detached from the
spark plug
– Engine is flooded due to several
starting attempts.
– Dirty air filter
– Throttle cable is damaged (e.g. kinked)
Remedy:
– Set throttle lever to the Choke or Start
position ( 11.2)
– Set throttle lever to the Choke position
( 11.2)
– Refill fuel tank ( 8.8)
– Clean fuel system and carburettor;
always use fresh, good quality fuel @,
, ( 8.8)
– Check fuel line @,
– Clean or replace spark plug @
– Adjust electrode gap
– Connect spark plug socket; check
connection between ignition lead and
socket.
– Remove spark plug and dry; set throttle
lever to STOP position and pull recoil
starter rope several times with spark
plug removed; screw in spark plug and
connect spark plug socket. @
– Clean/replace air filter @
– Repair throttle cable
Fault:
Starting problems or deteriorating engine
power
Possible cause:
– Mowing at an excessively low cutting
height or fast speed
– Water in fuel tank and carburettor;
carburettor blocked
– Fuel tank contaminated
– Air filter dirty
– Spark plug dirty
Remedy:
– Adapt cutting height and reduce
mowing speed
– Empty fuel tank, clean fuel line and
carburettor
– Clean fuel tank
– Clean/replace air filter @,
– Clean spark plug
Fault:
No drive when self-propulsion lever is
actuated
Possible cause:
– Self-propulsion cable incorrectly
adjusted
– Self-propulsion cable damaged
(e.g. kinked)
– V-belt worn
Remedy:
– Check adjustment ( 12.10)
– Replace cable
– Replace V-belt
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