Makita EA3201 SERIES Original Instruction Manual

Makita EA3201 SERIES Original Instruction Manual Manual pdf 21 page image

21CAUTION:Before doing any work on the guide bar or chain,always switch off the engine and pull the plugcap off the spark plug (see 7‑6 “Replacing the sparkplug”). Always wear protective gloves!CAUTION:Start the chain saw only after having assembled itcompletely and inspected.On QuickSet guide bars the chain is tensioned usinga toothed rack in the bar. This simplifies retensioningof the chain. These models do not have a conventionalchain tensioner. QuickSet guide bars are identified bythis symbol:6b-1. Mounting the guide bar and saw chain(Fig. 34)Use the universal wrench delivered with the chain saw for thefollowing work.Put the chain saw on a stable surface and carry out thefollowing steps for mounting the guide bar and saw chain:Release the chain brake by pulling the hand guard (1) indirection of arrow.Unscrew retaining nuts (2).Pull off the sprocket guard (3).(Fig. 35)Put the guide bar (4) on and push it against the sprocket (5).(Fig. 36)Lift the chain (6) over the sprocket (5).Guide the chain from above about halfway into the groove (7)on the guide bar.CAUTION:Note that the cutting edges along the top of the chain mustpoint in the direction of the arrow!(Fig. 37)Pull the chain (6) around the sprocket nose (8) of the guidebar in the direction of the arrow.(Fig. 38)Replace the sprocket guard (3).IMPORTANT:Lift the saw chain over the chain catcher (9).Tighten the nuts (2) only hand‑tight to begin with.6b-2. Tensioning the saw chain(Fig. 39)Turn the QuickSet chain tensioner (10) to the right (clockwise)using the combination tool, until the saw chain guide elementsengage in the guide groove on the bottom of the guide bar (ifnecessary, pull the chain into position slightly).Raise the tip of the guide bar slightly and turn the chaintensioner (10) further until the saw chain is flush against thebottom of the guide bar (see circle).While still holding up the tip of the guide bar, tighten theretaining nuts (2) with the universal wrench.NOTE: If the guide bar has been turned over, turn the chaintensioner to left (i.e. counter‑clockwise) to tighten the chain.6b-3. Checking the chain tension(Fig. 40)The tension of the chain is correct if the chain rests against thebottom side of the guide bar and can still be easily turned byhand.While doing so the chain brake must be released.Check the chain tension frequently ‑ new chains tend to getlonger during use!When checking the chain tension the engine must be switchedoff.NOTE: It is recommended to use 2‑3 chains alternatively.In order to guarantee uniform wear of the guide bar the barshould be turned over whenever replacing the chain.6b-4. Retensioning the saw chain(Fig. 39)Use the combination tool to loosen the fastening nuts (2)about one turn. Raise the tip of the guide bar slightly and turnthe QuickSet chain tensioner (10) to the right (clockwise) untilthe saw chain is again flush against the bottom of the guidebar (see circle).While still holding up the tip of the guide bar, tighten theretaining nuts (2) with the universal wrench.6b. Only for the QuickSet guide barNOTE:It is recommended to use 2‑3 chains alternatively.In order to guarantee uniform wear of the guide bar the barshould be turned over whenever replacing the chain.6a-4. Retightening the saw chain(Fig. 33)Loosen the nuts (2) about one turn with the universalwrench.Raise the tip of the guide bar a little and turn the chaintensioning screw (4) to the right (clockwise) until the saw chainis again up against the bottom edge of the guide bar (seecircle).While keeping the tip of the guide bar raised, tighten the nuts(2) again with the universal wrench.