CHECK that the chipper is running smoothly.
RELEASE the catches on the feed tray and
lower. Pull to release the red stop button.
PERFORM the “before using the chipper”
tests (see page 12).
PRESS the green control button. The rollers
will commence turning.
STAND to one side of the feed funnel.
PROCEED to feed material into the feed
funnel.
STARTING TO CHIP
CHIPPING
WARNING
Do not use or attempt to start the chipper without the protective
guarding and discharge unit securely in place. Failure to do so may
result in personal injury or loss of life
.
Wood up to the recommended diameter can be fed into the feed funnel. Put the butt end in first and
engage it with the feed roller. The hydraulic feed rollers will pull the branch into the machine quite
quickly. Large diameter material will have its feed rate automatically controlled by the engine
management unit.
Sometimes a piece of wood that is a particularly awkward shape is too strong for the feed rollers to
break. This will cause the top roller to either bounce up and down on the wood or both rollers to stall.
If this occurs press the
BLUE REvERSE
button until the material has been released. Pull the material
out of the feed funnel and trim it so the chipper can handle it.
Both feed rollers should always turn at the same speed. If one or both rollers stop or suddenly slow
down it may be that a piece of wood has become stuck behind one of the rollers. If this occurs press
the
BLUE REvERSE
button and hold for 2 seconds - then repress
GREEN FEED
button. This should
enable the rollers to free the offending piece of material and continue rotation at the correct speed. If
the rollers continue to stall in the 'forward feed' or 'reverse feed' position push the
RED STOP BUTTON
,
turn engine off, remove ignition key and investigate.
TIMBERWOLF
TW 190TDHB
13
OPERATING INSTRUCTIONS
BLADE WEAR
The most important part of using a wood chipper is keeping the cutter blades sharp. Timberwolf
chipper blades are hollow ground to an angle of 40 degrees. When performing daily blade checks
ensure blade edge is sharp and free from chips, if there is any evidence of damage, or the edge is “dull”
change the blade(s). The TW 190DHB is fitted with 2 blades 127mm (5") long. It is 100 mm wide when
new. A new blade should chip for up to 25 hours before it requires sharpening. This figure will be
drastically reduced by feeding the machine with stony, sandy or muddy material.
As the blade becomes blunt, performance is reduced. With increased stress and load on the machine
the chips will become more irregular and stringy. At this point the blade should be sent to a reputable
blade sharpening company. The blade can be sharpened several times in its life. A wear mark on the
reverse side indicates the safe limit of blade wear. Replace when this line is exceeded.
The machine is also fitted with a static blade (anvil). It is important that the anvil is in good condition
to allow the cutting blades to function efficiently. Performance will be poor, even with sharp cutter
blades, if the anvil is worn.