Maintenance & Adjustment - MTD 760 Manual Del Operador

Maintenance & Adjustments
Maintenance
WARNING!
Before performing any maintenance or
repairs, disengage PTO, move shift lever into neutral
position, set parking brake, stop engine and remove
key to prevent unintended starting.
Engine
Refer to the Engine Operator/Owner Manual for engine
maintenance instructions.
Check engine oil level before each use as instructed in the
Engine Operator/Owner Manual packed with your unit. Follow
the instructions carefully.
Changing Engine Oil
For draining oil from the engine's crankcase of select model
tractors, a plastic oil drain sleeve is packed with this Operator's
Manual. To drain the oil, proceed as follows:
1. Unscrew the oil fill cap and remove the dipstick from the oil
fill tube.
2. Snap the small end of oil drain sleeve onto the oil sump.
See Fig. 6-1.
Figure 6-1
3. Remove drain plug and drain oil into a suitable container
with a capacity of no less than 64 oz.
4. Service oil filter (if so equipped) as instructed in the separate
Engine Operator/Owner Manual packed with your unit.
Perform the above steps in the opposite order after oil has
finished draining.
5. Refill the engine with new motor oil as instructed in
the Engine Operator/Owner Manual packed with your
machine.
NOTE: Refer to the Engine Operator/Owner Manual packed with
your unit for information regarding the quantity and proper
viscosity of motor oil.
Air Cleaner
Service the pre-cleaner, if so equipped, and cartridge/air cleaner
element as instructed in the Engine Operator/Owner Manual
packed with your unit.
Spark Plug
The spark plug should be cleaned and the gap reset once a
season. Spark plug replacement is recommended at the start
of each mowing season. Refer to the Engine Operator/Owner
Manual for correct plug type and gap specifications.
Lubrication
WARNING!
Before lubricating, repairing, or
inspecting, always disengage PTO, move shift lever
into neutral position, set parking brake, stop engine
and remove key to prevent unintended starting.
Engine
Lubricate the engine with motor oil as instructed in the Engine
Owner Manual packed with your unit.
Pivot Points & Linkage
Lubricate all the pivot points on the drive system, parking brake
and lift linkage at least once a season with light oil.
Rear Wheels
The rear wheels should be removed from the axles once a
season. Lubricate the axles and the rims well with an all-purpose
grease before re-installing them.
Front Axles
Each end of the tractor's front pivot bar may be equipped with a
grease fitting. Lubricate with a grease gun after every 25 hours of
tractor operation.
Battery
The battery is sealed and is maintenance-free. Acid levels cannot
be checked.
• Always keep the battery cables and terminals clean and
free of corrosive build-up.
• After cleaning the battery and terminals, apply a light coat
of petroleum jelly or grease to both terminals.
• Always keep the rubber boot positioned over the positive
terminal to prevent shorting.
IMPORTANT:
If removing the battery for any reason,
disconnect the NEGATIVE (Black) wire from it's terminal first,
followed by the POSITIVE (Red) wire. When re-installing the
battery, always connect the POSITIVE (Red) wire its terminal
first, followed by the NEGATIVE (Black) wire. Be certain that the
wires are connected to the correct terminals; reversing them
could change the polarity and result in damage to your engine's
alternating system.
6
19