Northern Lights Lugger M773LW, Руководство оператора

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OM773LW2 10/09
15
SP4. AIR CLEANER
1. Inspect air cleaner every 250 hours. In dusty condi-
tions, check more often.
2. If dirty, wash element in soapy water. Rinse and dry
thoroughly before re-installing.
Replace if necessary. Part numbers are:
M773LW – #24-22003
M773LW2 – #24-28602
3. NOTE: Make absolutely sure no impurities enter
the engine while changing the element. Do NOT
run the engine with the air cleaner removed.
SP5. V-BELTS
1. Check the tension and wear on the V-belt daily.
2. Use your thumb to press on the belt at the midpoint
between the crankshaft and alternator pulleys. The
tension is correct if the belt can be depressed about
3/16 in. (5 mm).
Servicing
Figure 9: Valve Adjustment
SP6. VALVE CLEARANCES
1. Adjust valve clearance after 1000 hours or as
needed.
2. Valve adjustments should be done after the cylinder
head bolts have been re-tightened. Engine should be
cold and NOT running.
3. To bring the No. 1 cylinder to top dead center in the
compression stroke, align the timing mark; the top
mark of the crank pulley with that of the timing gear
case. Remove the rocker arm cover and turn the
crankshaft foward and backward. If the inlet and
exhaust valves of the No. 1 cylinder do not move
it is in top dead center position. When the valves
move, or rock, turn the crankshaft one full turn and
align the top mark of the crank pulley with the top
mark of the timing gear case.
4. Loosen the lock nut and adjust the clearance between
the rocker arm and valve guide of both the intake
and exhaust valves with the adjustment screw (
Figure
9
). Clearance on both intake and exhaust valves
should be 0.008 in. (0.2 mm).
5. Repeat steps 3 and 4 for each cylinder. Each set of
valves must be adjusted individually.
6. Replace the rocker arm cover. Tighten cover nuts to
5 - 8 ft/lbs (0.8 - 2.3 kg/m).
Figure 10: Timing Mark