MTD 504 - Lubrication.18; Maintenance.18

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BLADE BRAKE ADJUSTMENT (See figure 3))
WARNING
Make certain spark plug wire is dis¬
connected and grounded against the
engine while making this adjustment.
To adjust the blade brake, proceed as follows
1. Disconnect the brake cable from the lower inside
belt guard on the rider by removing the hairp in cot¬
ter, flat washer and clevis pin.
2. Lower the deck to its lowest position. Pla;e the
blade engagement lever in the disengaged
position.
3. Pull the brake cable back so there is no slack in
the cable. Do not put tension on the cable. Select
the hole in the lower inside belt guard which aligns
with the end of the cable. Move the end Df the
brake cable forward to the next hole in th e belt
guard (which will give a small amount of slack in
the cable), and reassemble.
CARBURETOR ADJUSTMENT
AC 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 adjustment may be required to
compensate for differences in fuel, temperature,
altitude and load. To adjust the carburetor, refer to the
separate engine manual packed with your unit.
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.
LUBRICATION
A t WARNING t
Always stop engine and disconnect
spark plug wire before cleaning,
lubricating or doing any kind of
work on riding mower.
1. E ngine. Maintain the engine oil according to the
engine manual.
2. F ront Wheels. The front wheels are provided with
grease fittings. Lubricate at least once a season
with automotive multi-purpose grease.
3. L inkage. Oil all deck linkage and height ad¬
justment linkage.
4. T ransaxle. It is lubricated at the factory and does
not require checking. Lubricate with 10 oz. of
grease (Part No. 737-0148) if disassembled.
MAINTENANCE
WARNING \
Disconnect spark plug wire and ground
it against the engine before performing
any repairs or maintenance.
CUTTING BLADE
A. Removal for Sharpening or Replacement
A t WARNING t
Be sure to disconnect and ground
the spark plug wire before working
on the cutting blade to prevent
accidental engine starting. Protect
hands by using heavy gloves or a rag
to grasp the cutting blade.
1. Remove the large bolt and lock washer which holds
the blade and adapter to the blade spindle. See
figure 31.
2. Remove the blade and adapter from the spindle.
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