
.°. _,
16
Always wear gloves when ha ndlingthe
chain. The chain is sharp enough to cut you even
though it is too dull to cut wood.
1. CHAIN MAINTENANCE
* Sharpen the chain when:
-- Wood chips are small and powdery. Wool
chips 'made by the saw (_hainshould be
about the size of the teeth of the 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(:hain in a petroleum based solvent
or a detergent and water solution.
2.) Dry chain thoroughly.
3.) Immersethe clean chaininlightoil untiloil
seeps into the rivet holes.
NOTE: Donotrun a chainwhich hasbeen
•cleaned without lubricating it first.
b. SHARPENIN G INSTRU C!"IONS •
ltents required:
Gloves Depth Gauge Tool
5132"roundfile Screwdriver
6" file holder Vise
•:Flatfile
1.) Sharpen Cutters.
a.) Support the square rod on the fife holder
(with5/32" roundfile)onthecuttertopplate
anddepth gauge. Figure 31,
b.) Hold the rite holder levelwiththe 30° guide
mark p_ra!lel to the center of the chain.
Figure 32. .
•c.) File from inside toward outside of cutter,
str_ght across,onforward strokeonly.Use
2 or 3 strokes percutting edge, Figure 32.
d.) Keepallcuttersthe samelength.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 result in 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 depth gauge tool.
c.) Maintain rounded front corner of depth
gauge with a fiat file, Figure 35 &36.
NOTE: The very top of the depth gauge
should be 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_
Fig ure33
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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