Malfunctions And Their Repairs - SaMASZ KDC 260 Operator's Manual

8. MALFUNCTIONS AND THEIR REPAIRS

Tab. 12. Malfunctions and their repairs
Malfunction
Mower stops working or
leaves stripes of uncut grass
between the discs
Mower is blocked
Mower does not work even
though drive is transmitted
from tractor
Excessive loudness during
work
Mower slows down even
though rpm value is stable
Conveyor is being blocked
with grass
Mower is blocked with
grass – no grass guiding or
guiding is uneven
Leaking cylinder
Excessive vibration during
work
Oil leak in gear
Operator's manual
Reason
Lack of knives
Worn knives
Improperly mounted knives
(left – right)
Too high tractor's engine rpm
(The most frequent mistake)
Too low work speed
Damaged tractor's PTO shaft, drive
not transmitted
Lying grass
Mower with either tine or roller conditioner may mow improperly in case of
Damaged bearings in the disc hub
Damaged cogs in the cutterbar
Worn roller in the gear
Worn or cut down hollow on
cutterbar drive shaft
Too low oil level in the cutterbar
Damaged friction clutch in the
cutterbar
Too low speed
Too low mowing speed
Swath guides set too narrow
Contaminated oil in the tractor
hydraulics
Damaged PTO shaft
Not tight assembly
- 44 -
Trailed disc mowers
Put on knives strictly according to
Speed up to V ≥ 6 mph or more
The inclination – the angle zero
very short grass or after rain
Put a new hollow
Check oil level and refill
Replace the clutch
Increase – adjust to the grass weight
Increase driving speed to 6 mph or more
Widen swath guides to the maximum
Replace oil in the tractor hydraulics
(recommended oil purity class according
to NAS 1638 is minimum 9-10).
Provide brand new cylinder repair kit and
replace worn gaskets
Check the condition of PTO shaft and if
Examine tightness and check oil level
KDC
Repair
Put on knives
Replace knives
instructions
Reduce rpm
Repair
Replace bearings
Check all cogs
Replace the gear
need be replace