−
US-25
−
2. Cut down the depth gauge using a flat file in a way
that the depth gauge is positioned 0.64 mm (0.025
inch) lower than the leading edge of the cutter.
3. Once cut back, grind the tip of the depth gauge
round.
IMPORTANT
Be sure that the depth gauge is not cut back
too far, as doing so will result in a faster
deterioration of the cutter.
Guide bar care
1. When work using the pruner is finished for the day,
remove the guide bar and saw chain from the pruner.
2. Remove any wood chips or other particles attached
to the groove of the guide bar or in the oil hole. Be
particularly certain that no particles are clogging the
oil hole.
3. Remove wood chips and other particles around the
oil discharge hole and around the sprocket on the
main unit of the pruner.
IMPORTANT
•
When installing the guide bar, occasionally
switch it to the top and bottom to prevent
uneven wear and to extend the life of the
guide bar.
•
If the oil discharge hole becomes clogged by
wood chips or other particles the pruner
could seize up.
Inspection of sprocket
1. Inspect the sprocket to ensure that the screw is not
loose or that it is not worn out.
0.64mm
Depth gauge
55°
80°
30°
Depth gauge setting
Top plate
cutting angle
Side plate filing angle
Top plate filing angle
Oil discharge holes
(also on the reverse side)
0,3 mm or more
Sprocket
Worn condition
Grease plug
Gear case
2. If the sprocket is worn by 0.3 mm or more, as shown
in the diagram below, replace the sprocket.
Continuing to use the pruner with the sprocket in
such a condition will shorten the life of the saw
chain.
Gear case
1. Remove the gear case from the shaft assembly.
2. Remove the grease plug and prepare some lithium-
type grease.
3. Inject enough grease (about 10g) so that some of it
spills out through the spline hole, to which the drive
shaft is inserted.
General Cleaning and Tightening
The Pruner will provide maximum performance for
many, many hours if it is maintained properly.
0.64mm
Depth gauge
55°
80°
30°
Depth gauge setting
Top plate
cutting angle
Side plate filing angle
Top plate filing angle
Oil discharge holes
(also on the reverse side)
0,3 mm or more
Sprocket
Worn condition
Grease plug
Gear case
0.64mm
Depth gauge
55°
80°
30°
Depth gauge setting
Top plate
cutting angle
Side plate filing angle
Top plate filing angle
Oil discharge holes
(also on the reverse side)
0,3 mm or more
Sprocket
Worn condition
Grease plug
Gear case
