Maintenance And Repair Instructions; Maintenance Schedule; Air Filter Maintenance - MTD Yard-Man YM320BV Instrucciones De Operación

MAINTENANCE AND REPAIR INSTRUCTIONS

MAINTENANCE SCHEDULE

Perform these required maintenance procedures at the
frequency stated in the table. These procedures should
also be a part of any seasonal tune-up.
NOTE: Some maintenance procedures may require
special tools or skills. If you are unsure about
these procedures take your unit to any non-road
engine repair establishment, individual or
authorized service dealer.
WARNING:
maintenance or repairs with unit running.
Always service and repair a cool unit.
Disconnect the spark plug wire to ensure that
the unit cannot start.
FREQUENCY
Before starting engine
Every 10 hours
Every 25 hours
Every 50 hours

AIR FILTER MAINTENANCE

Removing the Air Filter/Muffler Cover
WARNING:
always turn your unit off and allow it to cool
before you clean or service it.
1. Place the choke lever in Position 2.
NOTE: The choke lever must be in Position 2 to remove
the air filter/ muffler cover.
2. Remove the four (4) screws securing the air
filter/muffler cover (Fig. 17). Use a flat blade or
T-20 Torx bit screwdriver.
3. Pull the cover from the engine. Do not force.
Choke Lever
Screws
To prevent serious
injury, never perform
MAINTENANCE REQUIRED
Fill fuel tank with fresh fuel
Clean and re-oil air filter
Check and clean spark arrestor
Check spark plug condition and gap
Inspect exhaust port and spark arrestor screen for clogging or
obstruction to assure maximum performance levels
To avoid serious
personal injury,
Position 2
Screws
Fig. 17
NOTE: Maintenance, replacement, or repair of the
emission control devices and system may be
performed by any non-road engine repair
establishment, individual or authorized service
dealer.
In order to assure peak performance of your engine,
inspection of the engine exhaust port may be necessary
after 50 hours of operation. If you notice lost RPM, poor
performance or general lack of acceleration, this service
may be required. If you feel your engine is in need of this
inspection, refer service to any non-road engine repair
establishment, individual or authorized service dealer for
repair. DO NOT attempt to perform this process yourself
as engine damage may result from contaminants
involved in the cleaning process for the port.
Cleaning the Air Filter
Clean and re-oil the air filter every 10 hours of operation.
It is an important item to maintain. Failure to maintain the
air filter will VOID the warranty.
1. Remove air filter/muffler cover. Refer to Removing
the Air Filter/Muffler Cover.
2. Turn cover over and look inside to locate the air filter.
Remove the air filter from inside the air filter/muffler
cover (Fig. 18).
3. Wash the filter in detergent and water (Fig. 19). Rinse
the filter thoroughly. Squeeze out excess water. Allow
it to dry completely.
Air Filter
Inside Muffler
Cover
Fig. 18
REFER TO
Page 11
Page 15
Page 16
Page 17
Page 16
Fig. 19
15