Yard Machines 840 Thru 849 - Manual (Page 21)

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• If the paper can be inserted through the coils of the
brake spring, the brake is properly adjusted.
• 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 is achieved.
Figure 24
CARBURETOR ADJUSTMENTS
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 separate 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.
SECTION 9: SERVICE
WARNING: Always stop engine and
disconnect spark plug wire(s) before
cleaning, lubricating or doing any kind of
work on garden tractor.
STEERING GEARS
Lubricate teeth of steering gears with automotive multi-
purpose grease after every 25 hours of operation or
once a season. Refer to Figure 23.
STEERING SHAFT
Lubricate steering shaft at least once a season with
light oil.
TRANSAXLE
The transaxle is lubricated and sealed at the factory
and does not require checking. If disassembled for any
reason, lubricate with 32 oz. of Shell Darina grease,
part number 737-0148 (16 oz. tube).
LINKAGE
Once a season lubricate all the pivot points on the
clutch, brake and lift linkage with SAE 30 engine oil.
WHEELS
The front wheels may be provided with grease fittings.
Lubricate at least once a season with automotive multi-
purpose grease.
PIVOT POINTS
Lubricate all pivot points with light oil at least once a
season.
BALL JOINTS
The ball joints and drag link ends are permanently
lubricated.
BLADE SPINDLES
The blade spindles on the cutting deck are permanently
lubricated.
Hex Lock Nut
Paper
Disc
Brake Spring