Maintenance; Sharpening The Saw Chain - Makita UC014G Instruction Manual

2. Make the back cut a little higher than the base
cut of the scarf. The back cut must be exactly horizon-
tal. Leave approximately 1/10 of the trunk diameter
between the back cut and the scarf. The wood fibers in
the uncut trunk portion act as a hinge. Insert wedges
into the back cut in time.
Fig.35
WARNING:
Do not cut right through the fibers
under any circumstances. The tree will otherwise
fall unchecked.
NOTICE:
Only plastic or aluminum wedges may
be used to keep the back cut open. The use of
iron wedges is prohibited.
Carrying tool
Before carrying the tool, always apply the chain brake
and remove the battery cartridge from the tool. Then
attach the guide bar cover. Also cover the battery car-
tridge with the battery cover.
2
Fig.36
► 1 . Guide bar cover 2. Battery cover

MAINTENANCE

CAUTION:
switched off and the battery cartridge is removed
before attempting to perform inspection or
maintenance.
CAUTION:
ing any inspection or maintenance.
NOTICE:
alcohol or the like. Discoloration, deformation or
cracks may result.
To maintain product SAFETY and RELIABILITY,
repairs, any other maintenance or adjustment should
be performed by Makita Authorized or Factory Service
Centers, always using Makita replacement parts.

Sharpening the saw chain

Sharpen the saw chain when:
• Mealy sawdust is produced when damp wood is
cut;
• The chain penetrates the wood with difficulty, even
when heavy pressure is applied;
• The cutting edge is obviously damaged;
• The saw pulls to the left or right in the wood.
(caused by uneven sharpening of the saw chain or
damage to one side only)
Sharpen the saw chain frequently but a little each time.
Two or three strokes with a file are usually sufficient for
routine resharpening. When the saw chain has been
resharpened several times, have it sharpened in our
authorized service center.
Sharpening criteria:
WARNING:
the cutting edge and depth gauge increases the
1
risk of kickback.
Fig.37
► 1 . Cutter length 2. Distance between cutting edge
and depth gauge 3. Minimum cutter length (3 mm)
— All cutter length must be equal. Different cutter
lengths prevent the saw chain from running
smoothly and may cause the saw chain to break.
— Do not sharpen the chain when the cutter length
has reached 3 mm or shorter. The chain must be
replaced with new one.
18 ENGLISH
Always be sure that the tool is
Always wear gloves when perform-
Never use gasoline, benzine, thinner,
An excessive distance between
2
1
1
3
1
2