21
OPERATOR
’
S MANUAL
CIRCULAR SAW
PT
7.
DEFECTS AND THEIR REPAIR
Tab. 4.
Defects, causes and their repair
Default
Cause
Repair method
Circular saw fails
to cut
Circular blades are blunt
Sharpen blades / replace with new ones
Too low PTO rpm
Switch up to 1000 rpm
Reduce to the lowest gear and speed up
Seized bearings
Replace circular saw bearings
Worn, damaged hydraulic
engine
Recover hydraulic engine or replace with
new one
Low rpm rate at
circular blades
Improper tractor's PTO rpm
engaged
Switch tractor's PTO to 1000 rpm
Seized bearings
Replace circular saw bearings
Low motor rpm
Reduce to the lowest gear and speed up
Worn bearings
Replace with new ones
Plays on bolt connections
Tighten bolts
Sliding v-belts
Tighten belts or replace with new ones
Contamination between hub
and resistance disk
Check for smooth rotation, and if
resistance is felt, dismantle and remove
the contamination
WARNING!
Use only genuine SaMASZ fittings and spare parts. Spare parts of unknown origin
or new made feature lower strength and have unfavorable influence on the
device’s performance a
nd overall safety, and virtually in all cases increase
maintenance costs.
WARNING!
The SaMASZ co. does not bear any responsibility for damages and defects
caused as a result of applying non-genuine parts and fittings.
8.
MAINTENANCE AND STORING
Upon dismounting the circular saw from the extension arm, if the idle period for the circular saw is
longer than one month, perform the following maintenance works:
•
Clean the circular saw thoroughly from any dirt and then wash and dry it.
•
Should the circular saw require any repairs, adjustments and supplementations, or grease, seal
replacements, perform them.
•
Remove any sources of corrosion and complement any paintwork defect.
•
Protect metal surfac
es with thin layer of solid grease, e.g. ŁT –
43, or mineral engine or gearbox
oil, e.g. 15W40.
The circular saw should be stored under roof and in manner which effectively prevents animals and
people from being injured.
