Powerplus POWXQG4040 CHAINSAW 2400W 405MM EN - Manual (Page 15)

POWXQG4040
EN
Copyright © 2014 VARO P a g e | 15 www.varo.com
11.3 Clean the sprocket nose (5).
 Using a disposable lube gun, insert the nose of the needle into the lubrication hole
(Fig.33,A) and inject grease until it appears on the outside edge of the sprocket (5) (Fig.
33).
 Make sure that the chain brake (2) is deactivated. Rotate the saw chain (3) by hand.
Repeat the lubrication procedure until the entire sprocket (5) has been greased.
11.4 Guide bar and saw chain maintenance
Most guide bar problems can be prevented merely by keeping the product well maintained.
Incorrect filing and non-standard cutter and depth gauge settings are the causes of most guide
bar problems, primarily resulting in uneven bar wear. As the bar wears unevenly, the rails
widen, which may cause the chain to clatter and make it difficult to complete straight cuts. If
the guide bar is insufficiently lubricated and the product is operated with a saw chain which is
too tight, this will contribute to rapid bar wear. To help minimise bar wear, maintenance of the
guide bar as well as the saw chain is recommended.
 Disassemble the guide bar and saw chain in reversed order from assembly.
 Check the oiling port (20) for clogging and clean if necessary to ensure proper lubrication
of the guide bar and saw chain during operation. Use a soft wire small enough to insert
into the oil discharge hole.
NOTE: The condition of the oil passages can be easily checked. If the
passages are clear, the chain will automatically give off a spray of oil within
seconds of the product starting. Your product is equipped with an
automatic oiling system.
 Check the drive sprocket (23). If it is worn or damaged due to strain, have it replaced by
an authorised service agent.
 Clear residue from the rails on the guide bar(4) using a screwdriver, putty knife, wire brush
or other similar tool. This will keep the oil passages open to provide proper lubrication to
the bar (4) and chain (3) (Fig. 34).
 Check the guide bar ‘rail’ for wear: Hold a ruler (straight edge) against the side of the
guide bar and ‘cutter side plates’. If there is a gap between the ruler and guide bar the
guide bar ‘rail’ is normal. If there is no gap (ruler flush against the side of the guide bar)
the guide bar ‘rail’ is worn and needs to be replaced with a new one of the same type
(Fig. 35).
 Turn the guide bar 180° to allow even wear, thereby extending the life span of the guide
bar (4). Loosen the screw and remove the tension disc (24) from the guide bar (Fig. 36).
Ensure the rubber washer (a) is free of wear. Turn the guide bar and fix the tension disc
with the screw. Apply a drop of suitable glue to the screw to ensure its safe positioning
(Fig. 37).
 Check the saw chain for possible wear and damages. Replace it with a new one if
required. Expe
rienced users can sharpen a dull saw chain (see section “Saw chain
sharpening” below).
 Refit the saw chain (3) and the guide bar (4) as described under “Assembly”.
11.5 Saw chain sharpening
NOTE: Never saw with a blunt chain. The saw chain is blunt if you have to
push the product into the tree and the chips are very small.
 Have your chain (3) sharpened professionally at an authorized service centre.