Clean the sprocket wheel.
Using a disposable lube gun, insert the needle nose into the lubrication hole and
inject grease until it appears at the outside edge of the sprocket wheel (Fig. U
step 1).
Rotate the saw chain by hand (Fig. U step 2). Repeat the lubrication procedure
until the entire sprocket wheel has been greased.
Most guide bar problems can be prevented merely by keeping the product well
causes of most guide bar problems, primarily resulting in uneven bar wear. As the
bar wears unevenly, the rails widen, which may cause the chain to clatter and make
product is operated with a saw chain which is too tight, this will contribute to rapid bar
wear. To help minimise bar wear, maintenance of the guide bar as well as the saw
chain is recommended.
Disassemble the guide bar and saw chain in reversed order from assembly.
Check the oiling port for clogging and clean if necessary to ensure proper
lubrication of the guide bar and saw chain during operation. Use a soft wire small
enough to insert into the oil discharge hole.
Check the drive sprocket. If it is worn or damaged due to strain, have it replaced by
Clear residue from the rails on the guide bar using a screwdriver, putty knife, wire
brush or other similar tool. This will keep the oil passages open to provide proper
lubrication to the guide bar and saw chain.
Check the guide bar ‘rail’ for wear: Hold a ruler (straight edge) against the side of
the guide bar and ‘cutter side plates’. If there is a gap between the ruler and guide
the guide bar) the guide bar ‘rail’ is worn and needs to be replaced with a new one
of the same type (Fig. V).
Check the saw chain for possible wear and damages. Replace it with a new one
if required. Experienced users can sharpen a dull saw chain (see chapter “Saw
chain sharpening”).
NOTE: Saw chain sharpening may be required:
•
•
• when the saw chain is blunt (excessive force is required to penetrate
• Never saw with a blunt chain. The saw chain is blunt if you have to
push the product into the tree and the chips are very small.
23
02
Guide bar and saw chain
Most guide bar problems can be prevented merely by keeping the product well
causes of most guide bar problems, primarily resulting in uneven bar wear. As the
bar wears unevenly, the rails widen, which may cause the chain to clatter and make
product is operated with a saw chain which is too tight, this will contribute to rapid bar
wear. To help minimise bar wear, maintenance of the guide bar as well as the saw
chain is recommended.
1. Disassemble the guide bar and saw chain in reversed order from assembly.
2. Check the oiling port for clogging and clean if necessary to ensure proper
lubrication of the guide bar and saw chain during operation. Use a soft wire small
enough to insert into the oil discharge hole.
3. Check the drive sprocket. If it is worn or damaged due to strain, have it replaced by
4. Clear residue from the rails on the guide bar using a screwdriver, putty knife, wire
brush or other similar tool. This will keep the oil passages open to provide proper
lubrication to the guide bar and saw chain.
5. Check the guide bar ‘rail’ for wear: Hold a ruler (straight edge) against the side of
the guide bar and ‘cutter side plates’. If there is a gap between the ruler and guide
the guide bar) the guide bar ‘rail’ is worn and needs to be replaced with a new one
of the same type (Fig. V).
6. Check the saw chain for possible wear and damages. Replace it with a new one
if required. Experienced users can sharpen a dull saw chain (see chapter “Saw
chain sharpening”).
03
Saw chain sharpening
NOTE: Saw chain sharpening may be required:
• after damp wood is cut;
•
• when the saw chain is blunt (excessive force is required to penetrate
the wood), or obviously damaged;
• Never saw with a blunt chain. The saw chain is blunt if you have to
push the product into the tree and the chips are very small.
Clean the sprocket wheel.
Using a disposable lube gun, insert the needle nose into the lubrication hole and
inject grease until it appears at the outside edge of the sprocket wheel (Fig. U
step 1).
Rotate the saw chain by hand (WITH PROTECTIVE GLOVE) (Fig. U step 2).
Repeat the lubrication procedure until the entire sprocket wheel has been greased.
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