Makita EA3200S Operator's Manual page 35

Chain type
092 (91VG),
492 ( 91PX),
290 (90SG)
α
1
Files a nd h ow t o w ork w ith t hem
Use a s pecial s aw c hain r ound fi le f or s harpening. S tandard
round fi les a re u nsuitable. S ee " Extract f rom t he s pare p arts
list".
Type 0 92 ( 91VG), 4 92 ( 91PX): Saw chain round file, dia.
Type 2 90 ( 90SG): Saw chain round file, dia. 11/64"
The fi le s hould c ut o nly w hen p ushed f orwards ( arrow). L ift
the fi le w hen l eading i t b ackwards.
First sharpen the shortest cutter. The length of this cutter is
then the standerd for all other cutters of the chain.
New s aw t eeth m ust b e fi led t o t he e xact s ame s hape a s t he
used teeth, including on their running surfaces.
File d epending o n c hain t ype ( 90° t o t he g uide b ar).
A fi le h older m akes fi le g uidance e asier. I t i s m arked f or t he
4/5 correct sharpening angle of:
(keep t he m arks p arallel w ith t he c hain w hen fi ling, s ee i llus-­
tration) a nd l imits t he c ut d epth t o t he c orrect 4 /5 o f t he fi le
diameter. S ee " Extract f rom t he s pare p arts l ist".
After having sharpened the chain, the height of the depth
limiter must be checked by means of a chain gauge. See
"Extract f rom t he s pare p arts l ist".
Correct even the smallest excess height with a special flat
file ( 1). S ee " Extract f rom t he s pare p arts l ist".
Round o ff t he f ront o f t he d epth l imiter ( 2).
2
(4.5 mm).
α = 2 5°
α = 3 0°
α = 3 5°
5/32" ( 4.0 mm).
35