20
MAINTENANCE
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.
All service, other than the maintenance procedures described in
this manual, should be performed by an authorized service center.
NOTE:
Some maintenance procedures may require special tools or
skills. If you are unsure about these procedures, take the unit to
an MTD authorized service center.
FREQUENCY
MAINTENANCE REQUIRED
Before each
use
•
Check for loose screws, nuts or bolts
(tighten as needed)
•
Check for damaged or worn parts*
•
Check the saw chain sharpness. Refer to
Sharpening the Saw Chain
.
•
Check the chain tension (adjust as needed).
Refer to
Adjusting the Chain Tension
.
•
Fill the chain oil reservoir (refill frequently).
Refer to
Adding Bar and Chain Oil
.
After each use
•
Clean the unit and inspect decals. Refer to
Cleaning
in the
Cleaning and Storage
section.
Every 10 hours
•
Clean the guide bar groove and oil
passages.
CUSTOMER RESPONSIBILITY
* If maintenance or replacement is required, have the unit serviced
by an MTD authorized service center.
WARNING:
Wear protective clothing and observe all
safety instructions to prevent serious personal injury.
WARNING:
To prevent serious injury, never perform
maintenance on the unit while it is running. Always remove
the battery to prevent the unit from starting accidentally.
Always allow the unit to cool before maintaining the unit.
Before maintaining the battery charger, always unplug it
from the power outlet.
1. Make the first cut approximately 6 inches (15 cm) from the tree
trunk. Cut upward, from the underside of the limb. Use the top
of the guide bar to make this cut. Cut a third of the way through
the diameter of the limb (Fig. 14).
2. Make the second cut 2 - 4 inches (5 - 10 cm) farther out on the
limb. Cut downward, from the top of the limb. Use the bottom of
the guide bar to make this cut. Cut completely through the limb
(Fig. 14).
3. Make the third cut as close to the tree trunk as possible. Cut
upward, from the underside of the limb stub. Use the top of the
guide bar to make this cut. Cut a third of the way through the
diameter of the limb (Fig. 14).
4. Make the fourth cut directly above the third cut. Cut downward,
from the top of the limb stub. Use the bottom of the guide bar to
make this cut. Cut completely through the limb stub to meet the
third cut (Fig. 14). This will remove the limb stub.
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