14
EN
9. TROUBLESHOOTING
PROBLEM
1) The engine will
not start or will not
keep running
2) The engine starts
but is lacking in
power
3) The engine runs
irregularly and lacks
in power when
revved
4) The engine gives
off an excessive
amount of smoke
10. TECHNICAL SPECIFICATIONS
Engine ................................. 2-stroke air-cooled
Capacity / Power
B 28 mod. .......................... 25.4 cm
B 33 mod. .......................... 32.6 cm
B 44 mod. .......................... 42.7 cm
Engine rotation speed at tick-over
B 28 mod. .............................. 2520-3080 rpm
B 33 mod. .............................. 2520-3080 rpm
B 44 mod. .............................. 2520-3080 rpm
Maximum engine rotation speed
B 28 mod. ..................................... 10000 rpm
B 33 mod. ..................................... 10000 rpm
B 44 mod. ....................................... 9500 rpm
Maximum tool rotation speed
B 28 mod. ....................................... 7800 rpm
B 33 mod. ....................................... 7800 rpm
B 44 mod. ....................................... 7400 rpm
Spark plug ............................... Torch L8RTC or
NGK-R BPMR7A or equivalent
Mixture ........... Petrol : 2-stroke oil = 50:1 = 2%
LIKELY CAUSE
– I ncorrect starting procedure
– D irty spark plug or incorrect
distance between the electrodes
– A ir filter clogged
– C arburetion problems
– A ir filter clogged
– Carburetion problems
– D irty spark plug or incorrect
distance between the electrodes
– Carburetion problems
– I ncorrect composition
of the fuel mixture
– C arburetion problems
/ 0.7 kW
3
/ 0.9 kW
3
/ 1.1 kW
3
TROUBLESHOOTING / TECHNICAL SPECIFICATIONS
– F ollow the instructions
– C heck the spark plug
– C lean and/or replace the filter
– C ontact your dealer
– C lean and/or replace the filter
– C ontact your dealer
– C heck the spark plug
– Contact your dealer
– P repare the fuel mixture according
– C ontact your dealer
Tank capacity
B 28 mod. ......................................... 650 cm
B 33 mod. ......................................... 850 cm
B 44 mod. ......................................... 950 cm
Maximum permitted blade diameter
3 or 4 point blade ........................... Ø 255 mm
Weight
1)
B 28 ....................................................... 6.8 kg
B 28 J .................................................... 7.3 kg
B 28 D ................................................... 6.9 kg
B 28 JD ................................................. 7.7 kg
B 33 ....................................................... 7.8 kg
B 33 D ................................................... 8.6 kg
B 44 ....................................................... 8.6 kg
B 44 D ................................................... 9.5 kg
W eight as per standard ISO 11806-1
1)
(without fuel, cutting devices and harness)
SOLUTION
(see chapter 6)
(see chapter 8)
(see chapter 8)
(see chapter 8)
(see chapter 8)
to the instructions (see chap. 5)
3
3
3