Blount 633GC Manuel de l'opérateur télécharger pdf (Page 9)

© 2009 ICS, Blount Inc. F/N 70944 Oct 09

TITLE 633GC / 633F4 OPERATOR’S MANUAL

10

SET-UP

GUIDE BAR AND DIAMOND CHAIN INSTALLATION

STEP 7

Allchainshaveatendencytostretch

when used. Diamond chains stretch more

than wood cutting chains because of the

abrasive materials they are cutting. When

a chain stretches to a point where the drive

linksarehangingapproximately1/2”

(12mm)to3/4”(18mm)**belowthebar,

it’s time to tension the chain. See Note 2.

STEP 6

If the chain is too loose, it could come off

thebar,oritwillallowthedrivesprocketto

spin without turning the chain, which can

chewupthechaindrivelinks.Ifthechain

is too tight, a lot of the saw’s power goes

into turning the chain rather than into the

cut.Inextremeover-tightenedcases,the

saw may not be able to turn the chain at

all. In addition, damage can occur to the

bar nose and premature stretch may occur.

See Note 1.

STEP 8

Beforecutting,checkforpropertensionby

pulling the chain around the bar by hand. If

you cannot easily pull by hand, the chain is

too tight and needs to be loosened a little.

See Note 3.

** As measured without pulling

downward (eg. hanging by gravity)

3/4" (18 mm)**

STEP 5

Makesureallthedrivelinksareinside

the guide bar groove then lift the bar nose

and tension the chain by turning the screw

clockwise.

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