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! #! ,*
Replace spark plugs after every 800 operating hours.
Recommended air gap is 7.5 mm (0.030").
Correct spark plug to use is a Champion RC 12YC.
15( The spark plug usually lasts a long time;
however, the plug should be removed and checked
whenever the engine malfunctions.
Clean area around spark plugs so foreign matter
cannot fall into cylinder when spark plug is removed.
. Pull spark plug wires off spark plugs and remove
plugs from cylinder head.
Check condition of side electrode, center
electrode, and center electrode insulator to assure
there is no damage.
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Set air gap between center and side of electrodes
at 0.030". Install correctly gapped spark plug w/gasket
seal, and tighten plug to 200 in-lb. If torque wrench is
not used, tighten plug firmly.
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//
Park the machine on a level surface, disengage the
PTO switch, set parking brake and turn ignition key to
OFF" to stop the engine. Remove the key.
Drive wheels must lock when the brake is applied.
Adjustment is required if the wheels turn and do not
lock; refer to Adjusting the Brake.
Release the brake, wheels should rotate freely.
If both conditions are met no adjustment is
required.
"" With the parking brake released, the
drive wheels must rotate freely. If brake action and free
wheel rotation cannot be achieved contact your
service dealer immediately.
#!" ,*
If drive wheels do not rotate when brake lever is in the
OFF position, or brake does not hold when lever is in
the ON position, an adjustment is required.
Move brake lever to the ON position.
Measure distance between disc brake actuating
arm and stop pin on axle bracket assembly. Distance
should be less than 1/4 inch (6 mm).
If distance is greater than 1/4 inch (6 mm), tighten
locknut to decrease distance between actuating arm
and stop pin.
With the brake lever OFF, check clearance
between brake pads and disc with a feeler gauge.
Proper clearance is approximately 2.5 mm (.010 in.).
The actuating arm should be no more than 10 mm
3/8 in. away from stop with brake lever in the OFF
position.
Check the brake operation again; refer to
Checking the Brake.
Check adjustment. Drive wheels should rotate
freely when brake lever is in the OFF position.
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Replace the fuel filter after every 100 operating hours or
yearly, whichever occurs first.
15( Never install a dirty filter if it is removed from the
fuel line.
Disengage the PTO switch, set parking brake and
turn ignition key to OFF" to stop the engine. Remove
the key.
Close fuel shut off valve.
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