Unscrew the fuel valve
Clean the screen grid.
Check the condition of the screen grid (holes), replace the
fuel cock if necessary.
Screw the fuel cock back in with a new seal.
Install the engine stop switch again. Retighten the fastening
screws with a tightening torque of 10 Nm (7.4 ft.lbs).
Reassemble the cover. Retighten the fastening screws with a
tightening torque of 3 Nm (2.2 ft.lbs).
Fasten the fuel hose to the fuel valve.
Close the tank again.
6.8.4 Check, adjust the engine speed
WARNING!
Exhaust gases are highly dangerous!
Always ensure an adequate supply of fresh air when
starting and operating in closed rooms and trenches!
WARNING!
Danger of accident!
Examine the starter rope of the recoil starter for
chafing before starting, replace if necessary. A dam-
aged rope can break and cause injuries during
starting.
Always hold on to the machine.
Keep your feet away from the tamper plate, because
the vibration starts immediately.
Always keep an eye on a running machine.
WARNING!
Loss of hearing!
Wear your personal noise protection means (ear
defenders) before starting operation.
Idle speed: 1850 to 2000 min
-1
.
Maximum speed: 3850 to 4200 min
-1
.
Fig. 65
Fig. 66
Checking the engine speed
Maintenance
BT 60 / BT 65
63
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