Maintenance; 1 Harpening The Saw Chain; 2 Cleaning The Inside Of The Sproc Et Guard - Makita EA3200S Instruction Manual

7. MAINTENANCE

7-1. Sharpening the saw chain
CAUTION: Before doing any work on the guide
bar or chain, always switch o the engine
and pull the plug cap o the spark plug see
7 6 Replacing the spar plug ). Always wear
protective gloves!
(Fig. 59)
The chain needs sharpening when:
The sawdust produced when sawing damp wood loo s li e
wood our
The chain penetrates the wood only under great pressure
The cutting edge is visibly damaged
The saw is pulled to the left or right when sawing This is
caused by uneven sharpening of the chain
Important: Sharpen frequently, but without removing too
much metal!
enerally 2 or 3 stro es of the le will be enough
ave the chain resharpened at a service center when you
have already sharpened it yourself several times
Proper sharpening:
CAUTION: Use only chains and guide bars designed for
this saw (see 10 Extract from the spare parts list")!
(Fig. 60)
All cutters must be of the same length dimension a) Cutters
with di erent lengths result in rough running of the chain and
can cause crac s in the chain
The minimum cutter length 3 mm
when the minimum cutter length has been reached at this
point the chain must be replaced see 10
spare parts list and 7 4 Replacing the saw chain )
The depth of the cut is determined by the di erence in height
between the depth limiter round nose) and the cutting edge
The best results are obtained with a depth limiter depth of
0 64 mm 025 )
CAUTION: Excessive depth increases
the risk of kickback!
(Fig. 61)
The sharpening angle ) must be identical for all cutters!
30 for chain type 092 91
291 90P )
The teeth will have the proper angle ß) automatically if the
proper round le is used
80 for chain type 092 91
75° for chain type 290 90
i erent angles result in a roughly irregularly running chain
increase wear and tear and cause chain bea age
Files and how to work with them
se a special saw chain round le for sharpening
round les are unsuitable
list
o not resharpen the chain
tract from the
) 492 91P ) 290 90 )
) 492 91P )
) 291 90P )
tandard
ee 10 tract from the spare parts
Type 092 (91VG), 492 (91PX) aw chain round le dia 4 0 mm
Type 290 (90SG), 291 (90PX) aw chain round le dia 4 5 mm
(Fig. 62)
The le should cut only when pushed forwards arrow) ift the
le when leading it bac wards
irst sharpen the shortest cutter The length of this cutter is
then the standard for all other cutters of the chain
ew saw teeth must be led to the e act same shape as the
used teeth including on their running surfaces
ile depending on chain type 90 or 10 to the guide bar)
(Fig. 63)
A le holder ma es le guidance easier It is mar ed for the
correct sharpening angle of
30
eep the mar s parallel with the chain when ling see
illustration) and limits the cut depth to the correct 4 5 of the le
diameter
(Fig. 64)
After having sharpened the chain the height of the depth
limiter must be chec ed by means of a chain gauge
tract from the spare parts list
Correct even the smallest e cess height with a special at
le 1) ee 10 tract from the spare parts list
Round o the front of the depth limiter 2)
7-2. Cleaning the inside of the sprocket guard
CAUTION: Before doing any work on the guide bar or
chain, always switch o the engine and pull the plug
cap o the spark plug see 7 6 Replacing the spar plug ).
Always wear protective gloves!
CAUTION: Start the chain saw only after having
assembled it completely and inspected.
(Fig. 65)
Remove the sproc et guard 1) see 6 P TTI
P RATI for the correct model) and clean out the interior
with a brush
Remove the chain 2) and guide bar 3)
NOTE:
Ma e sure there are no residues or foreign matter remaining in
the oil guide groove 4) or on the chain tensioner 5)
To install the guide bar saw chain and sproc et guard see 6
P TTI I T P RATI
NOTE:
The chain brake is a very important safety device and
like any other component subject to normal wear and
tear.
Regular inspection and maintenance are important for
your own safety and must be done by a MAKITA service
center.
ee 10
I T
for the correct model
SERVICE
27