Yard Machines 840 Thru 849 Lawn Mower User Manual


 
If the paper cannot be inserted, tighten the hex
lock nut until the paper can be inserted through the
coils.
Release the parking brake and place the tractor in
neutral. Depress the clutch-brake pedal and try
rolling the tractor. The tractor should not move. If
the tractor moves, repeat the above steps until
proper brake adjustment isachieved.
He]( Lock Nut
Figure 26
Wheel
The caster (forward slant of the king pin) and the
camber (tilt ofthe wheels out at the top) require no
adjustment. Automotive steering principles have been
used to determine the caster and camber on the tractor.
The front wheels should toe-in between 1/16-5/16 inch.
Some units have adjustable tie rods so the toe-in can
be adjusted. To adjust the toe-in on these units, follow
these steps.
Remove hex nut and lock washer, and drop the end
of the tie rod from the axle bracket. See Figure 27.
Loosen the hex jam nut on tie rod.
Adjust the tie rodassembly for correct toe-in.
Tie
Rod
Dimension "B" should be approximately 1/16-5/16" less
than Dimension "A." See Figure 28. To increase
Dimension "B," screw tie rod intotie rod end. To
decrease Dimension "B," unscrew tie rodfrom tie rod
end. Reassemble tie rod. Check dimensions. Readjust
if necessary.
__ Front
(1116" - 5/16" Less Than A)
Figure 28
I
Carburetor
WARNING: If any adjustments are made to
the engine while the engine is running (e.g.
carburetor), disengage all clutches and
blades. Keep clear of all moving parts. Be
careful of heated surfaces and muffler.
Minor carburetor adjustments may be required to
compensate for differences in fuel, temperature,
altitude and load. Refer to the engine manual for
carburetor adjustment information.
NOTE: A dirty air cleaner will cause an engine to run
rough. Be certain air cleaner is clean and attached to
the carburetor before adjusting carburetor.
Wheel
Hex Jam
Nut
Tie Rod
End
Lock Washer
Figure 27
20