Husqvarna K970 II Ring Manuel D'utilisation page 31

Troubleshooting schedule
Problem Probable cause
Guide roller knobs not tightened fully.
The blade does
The blade not fitted on guide rollers correctly.
not rotate.
Support rollers tensioned too much.
Support rollers tensioned too much.
Worn drive wheel.
The blade
The V-shaped inner diameter of the blade is
rotates too
worn.
slowly.
The springs on the guide rollers are
weakened.
Defective guide roller bearings.
Defective support roller bearings.
Support roller setting too loose.
Worn guide rollers.
The blade
jumps out of its
The blade not fitted on guide rollers correctly.
position.
Damaged blade.
Support rollers tensioned too much.
The blade
warps.
Blade overheating.
Segments
Bent, twisted or badly maintained blade.
break.
The blade cuts
Wrong blade for the material in question.
too slowly.
The guide rollers does not move in and out
freely. A seized guide roller can not press the
blade hard enough against the drive wheel.
Worn drive wheel. Abrasive material and too
little water when cutting increases the wear
on the wheel.
The blade slips. Worn guide roller flange. When more than
half of the width of the flange is worn the
blade slips.
The blade's groove and inner edge are worn.
Caused by inferior flushing of abrasive
material and/or a worn drive wheel causing
the blade to slip.
TROUBLESHOOTING
Potential Solution
Tighten the guide roller knobs completely.
Refit the blade and make sure the blade moves, see
section "Assembling and adjustments".
Readjust support rollers.
Tighten the guide roller knobs completely.
Check for wear on the drive wheel, see section
"Cutting blades". Change if needed, see section
"Assembling and adjustments".
Check for wear of the blade, see section "Cutting
blades". Change if needed, see section "Assembling
and adjustments".
Replace complete guide roller assy or contact an
authorized service workshop.
Replace complete guide/support roller assy or
contact an authorized service workshop.
Readjust support rollers.
Check for wear on the guide rollers, see section
"Maintenance". Change if needed.
Refit the blade and make sure the blade moves, see
section "Assembling and adjustments".
Check for wear of the blade, see section "Cutting
blades". Change if needed, see section "Assembling
and adjustments".
Readjust support rollers.
Check the water flow, see section "Technical data"
Continue to use the blade only if one segment is
missing or leave for reconstruction when the blade is
worn max 50 %.
Check for wear of the blade, see section "Cutting
blades". Change if needed, see section "Assembling
and adjustments".
Check blade recommendations, see section "Cutting
blades". Change blade if needed, see section
"Assembling and adjustments".
Check that the guide roller sleeves are free to move
in and out. If not, remove, clean, regrease and refit.
See section "Maintenance". Change if needed.
Check for wear on the drive wheel, see section
"Cutting blades". Change if needed, see section
"Assembling and adjustments".
Check for wear on the guide rollers, see section
"Maintenance". Change if needed.
Check blade, drive wheel and guide rollers, see
section "Cutting blades". Change if needed, see
section "Assembling and adjustments".
Check the water flow, see section "Technical data"
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