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.°. _,
16
Always wear gloveswhen handlingthe
chain. The chain is sharp enough to cut you even
though itis too dull to cut wood.
1. CHAIN MAINTENANCE
* Sharpen the chain when:
-- Wood chipsare small and powdery.Wool
chips'made by the saw (_hainshould be
about the size of the teeth ofthe chain.
-- Saw has to be forced through the cut.
-- Saw cuts to one side.
a. CLEAN TREE SAP FROM THE CHAIN
BEFORE IT IS .SHARPENED:
: 1.) .Soak(:hainin a petroleum based solvent
or a detergent and water solution.
2.) Dry chainthoroughly.
3.) Immersetheclean chaininlightoiluntiloil
seeps intothe rivet holes.
NOTE: Donotruna chainwhich hasbeen
•cleaned without lubricating it first.
b. SHARPENIN G INSTRUC!"IONS •
ltents required:
Gloves Depth Gauge Tool
5132"roundfile Screwdriver
6" file holder Vise
•:Flatfile
1.) Sharpen Cutters.
a.) Supportthe square rodon thefife holder
(with5/32" roundfile)onthecuttertopplate
anddepth gauge. Figure31,
b.) Holdtheriteholder levelwiththe30° guide
mark p_ra!lel to the center of the chain.
Figure32. .
•c.) File from inside towardoutside of cutter,
str_ght across,onforward strokeonly.Use
2 or 3 strokes percutting edge,Figure32.
d.) Keepallcuttersthesamelength.Figure33.
e.) File enough to remove any damage to
cutting edge (side & top plate) of cutter.
Figure'33: , ..
i.) File 91 G chain to meet specifications.
shown in Figure 34.
_WARNING
Maintain the proper hook angle according to the
manufacturei_'s specification for the Chain you are
Using. Too"muchhook angle will increase the chanc e
of kickback which can resultin serious injury. Figums
34 and 36.
2.) Correct Depth Gauges
NOTE: Avoid contact with other parts of the
chain toprevent damage tochain•
a.) Place depth gauge tool (Catalog No.
71-36557) over each cutter depth gauge.
Figure 35.
b.) File level with the flat file if depth gauge is
higherthan the depthgauge tool.
c.) Maintain rounded front corner of depth
gauge with a fiat file, Figure 35 &36.
NOTE: The very top of the depth gauge
shouldbe flat with the front half rounded :
off with a flat file. ' .....
FILE HOLOER
......,
Figure31
CUTTER/_ J
UNE
•, Figure32
CUTTERS REMOVE DAMAGE
IOE PLATE TOP 16t.ATt_
Figure33
Figure34 -
Figure 35
HOOK .025.
OUNOED
ORNER
FLIGHT WAY
TOO MUCH SQUARED
HOOK ANGLE
OFF CORNER
WRONG WAY
Figure 36
Jl_ WARNING
Depth gauge tool is required to insure proper depth
gauge filing. Filing the depth gauge too deep will
increase the chance of kickback which can result in
serious injury.
i
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