POWDPG75385 EN
Copyright © 2021 VARO P a g e | 14 www.varo.com
14.5 Chain maintenance
Chain tension:
A slack chain may jump off the bar and cause serious or even fatal injury.
Always remove the battery before any assembly, maintenance and/ or
checking is done on the machine.
▪ The more you use a chain the longer it becomes. It is therefore important to adjust the
chain regularly to take up the slack.
▪ Check the chain tension every time you refill with saw chain oil. NOTE! A new chain has a
running-in period during which you should check the tension more frequently. Tension the
chain as tightly as possible, but not so tight that you cannot pull it round freely by hand
▪ Release the chain cover lock knob until it snaps open.
▪ Turn the knob anti clockwise to loosen the drive sprocket cover.
▪ Adjust the tension on the chain by turning the chain tensioner wheel down (+) for tighter
tension and up (-) to loosen the tension.
▪ Tighten the chain cover by turning the knob clockwise.
▪ Withdraw the knob back in to lock the tensioning.
Warning: never have more than 3 links removed from a loop of chain. This
could cause damage to the sprocket.
Chain lubrication:
Always make sure the automatic oiler system is working properly. Keep the oil tank filled with
good quality chain, bar and chain oil.
Adequate lubrication of the bar and chain during cutting operations is essential to minimize
friction with the guide bar.
Never starve the bar and chain of lubricating oil. Running the saw dry or with too little oil will
decrease cutting efficiency, shorten saw chain life, cause rapid dulling of chain, and lead to
excessive wear of bar from overheating. Too little oil is evidenced by smoke or bar discoloration.
15 TECHNICAL DATA
