Exmark METRO 346, Operator'S Manual, Page: 27 / 48

Maintenance
Check for Loose Hardware
Service Interval: Before each use or daily
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Visually inspect machine for any loose hardware
or any other possible problem. Tighten hardware
or correct the problem before operating.
Service Air Cleaner
Service Interval: Every 25 hours—Service
the foam element. (May
need more often under
severe conditions. See
the Engine Owner's
manual for additional
information.)
Every 100 hours—Service
the paper element. (May
need more often under
severe conditions. See the
Engine Owner's manual
for additional information.)
Every 200 hours/Yearly
(whichever comes
first)—Replace the paper
element.
1. Stop engine, wait for all moving parts to stop, and
remove key or spark plug wire(s). Engage parking
brake.
2. See the Engine Owner's Manual for maintenance
instructions.
Change Engine Oil
Service Interval: After the first 5 hours
Every 100 hours (May
need more often under
severe conditions.)
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Drain oil while engine is warm from operation.
3. Remove the oil drain plug from the right hand
side of the engine. Allow oil to drain, replace
drain plug.
4. Replace the oil filter per the engine owner's
manual. Clean around oil filter and unscrew filter
to remove. Before the new filter is installed,
apply a thin coating of Exmark 4–Cycle Premium
Engine Oil on the surface of the rubber seal.
Turn filter clockwise until rubber seal contacts
the filter adapter, then tighten filter an additional
2/3 to 3/4 turn.
5. Clean around oil fill cap and remove cap. Fill to
specified capacity and replace cap.
6. Use oil recommended in the Check Engine Oil
Level section. Do Not overfill. Start the engine
and check for leaks. Stop engine and recheck oil
level.
7. Wipe up any spilled oil from engine deck
mounting surfaces.
Check Tire Pressures
Service Interval: Every 40 hours
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Check tire pressure in drive tires.
3. Inflate drive tires to 12–16 psi (83–110 kPa).
4. Inflate tires to pressures stated above. Measure
the circumference of each drive tire. Adjust tire
pressures within the above range to try to make
tire circumferences match as closely as possible.
5. Semi-pneumatic caster tires Do Not need to be
inflated.
Note:
A more uniform cutting height may be
obtained with higher tire pressure on rough terrain.
A lower tire pressure provides more flotation.
Check Condition Of Belts
Service Interval: Every 40 hours
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Remove the mower deck belt shield to check
mower blade drive belt condition.
3. Look under engine deck to check the transmission
drive belt condition.
4. Inspect wheel drive belt conditions.
5. Check all idler arms to be sure they pivot freely.
Disassemble, clean and grease pivot bushings if
necessary.
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