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4140
CULTIVATOR EDGER PRUNING SAW HEDGE TRIMMER BRUSHCUTTER
Inspection and Maintenance
Cleaning the chain oil discharge xport, guide bar, and drive
sprocket cover
These areas can easily become clogged with chain oil and wood
chips. Clean these areas frequently.
Cleaning frequency - Before and after operation, Frequently
1. Remove the guide bar clamping nut.
2. Remove the drive sprocket cover.
3. Clean the chain oil discharge port (N). (Fig.8-7)
4. Using the optional depth gage, clean the oil filler hole
and the slot (O) on the guide bar (P). (Fig.8-8)
5. Wipe away any wood chips and other debris that has
accumulated in the drive sprocket cover (Q). (Fig.8-9)
6. Install the guide bar and saw chain while referring to
Assembly of Pruner.
10. Inspecting the saw chain
If the saw chain (R) wears excessively, the chainsaw will exhibit poor
cutting performance, will fail to cut branches cleanly, and will be
difficult to use.
Inspection timing - Before and after operation
Check the saw chain for excessive wear, breakage, cracks,
deformation, and other problems. Replace a problem saw chain
with a new one.
11. Inspecting the saw chain tension
Make sure that the saw chain is correctly tensioned.
Inspection timing - Before and after operation
To adjust the tension of the saw chain, see Assembly of Pruner.
12. Replenishing the chain oil
If you continue to run the chainsaw even after all the chain oil has
been depleted, the saw chain and guide bar will soon become
damaged beyond repair.
Inspection timing - Before and after operation
NOTE
• Use a high-quality special chain oil suitable for the chainsaw.
• Add fresh chain oil before the oil level drops to the line
indicating 1 cm above the bottom of the oil tank.
• If chain oil is spilled on the chainsaw, thoroughly wipe off the
spill and surrounding areas.
• Dust or other foreign matter in the oil tank can cause the
chainsaw to malfunction. Be careful to prevent dust and other
foreign matter from contaminating the oil tank.
1. Remove the tank cap (S).
2. Pour the chain oil into the chain oil tank.
3. Replace the tank cap (S).
Long term storage
If the machine will not be started for 30 days of longer, maintain and
store the machine as follows:
• Remove debris from the saw chain. Check the saw chain
for irregularities. To prevent rusting, sparingly apply oil onto
the surface of the saw chain and install the guide bar cover
provided as a standard accessory
CAUTION
Do not store the machine for a prolonged period with fuel remaining
in the fuel tank. Impurities in the fuel will deteriorate, adversely
affecting the carburetor and fuel filter and possibly causing an
engine malfunction. Always fully drain the fuel before storing the
machine.
Inspection & Maintenance Checklist
Checkpoints Before and after
operation
Every 20 Hours
of operation
Every 50 Hours
of operation
Entire
Unit
Loose screws, nuts and
bolts
Inspect
○
Cleaning of the chain oil
discharge port, guide bar,
and drive sprocket cover
Clean
○
Excessive wear, break-
age, cracks, and defor-
mation of the saw chain
Inspect
○
Tension of the saw chain Inspect
○
Chain oil level
Inspect
○
Chain oil feed rate
Inspect
○
Cleaning of the oil filter
Clean
○
Grease in gearcase
Replenish grease
○
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