FPM Agromehanika 627 678, Assembly / Operation/ Maintenance, Spare Parts List

Page: 31 / 62

MAINTENANCE TABLE
FPM Boljevac
ISSUE POSSIBLE CAUSE CORRECTIVE ACTION
Cutting unit does not float
(does not copy the ground)
Support frame not properly
adjusted.
Trunnions and yokes are
getting stuck
on the cutting unit.
Adjust the support frame to
bring the attachment points to a
400 mm height from the ground
and be parallel.
Lubricate the trunnions and
yokes.
Mower balancing rod
keeps unlocking.
Balancing rod spring
insufficiently tightened.
Tighten the balancing rod
spring (see page 24).
Difficulties adjusting the
cutting unit angle.
Tension chain in inappropriate
position.
Put the tension chain in
appropriate position.
Grass stalks
not uniformly cut.
Cutting unit angled too steep.
PTO shaft
rpm too low.
Forward speed
too high.
Blunt or broken cutter.
Adjust the incline.
Work with 540 min
-1
of
the PTO shaft.
Reduce driving speed.
Install a new cutter.
Grass stalks
cut too high.
Cutting unit angle
not adjusted.
Change the cutting unit angle.
Crop stalks falling forward
before cutting is performed.
Wind moving the grass.
Adjust the cutting direction
(mowing).
Regulate the PTO shaft
rpm, increase the
forward driving speed.
Excessive wear and tear
of the cutters and discs.
Heavy duty working conditions.
Pick appropriate cutters
and reinforced discs.
Soil sticking on the front end
of the cutting unit.
Working on wet or
damp soil.
Adjust the frame height by
shortening the chains to the
required height.