LawnMaster 400 B 2.4, Owner'S Manual, Page: 11 / 16

Cleaning & Storage
9
Grass Cutting Faults
Adjust the cutting cylinder away from the bottom blade
and apply a thin layer of grease to the cutting edges
to prevent corrosion through the storage period. If
possible, spray the mower with a thin film of light oil to
protect it.
Safety
• To reduce the fire hazard keep the engine, muffler
and petrol storage free of grass, leaves or excessive
grease.
• Never store the mower with petrol in the tank
inside a building where fumes can reach an open
flame or spark.
POSSIBLE CAUSE REMEDY
• Forward speed too high. • Reduce engine rpm.
• Cylinder speed too slow. • Reduce forward speed.
• Height of cut too low. • Raise height of cut.
Some uncut or poorly cut strands
of grass
POSSIBLE CAUSE REMEDY
• Cutting cylinder is partially • Re-adjust cutting
out of contact with the
cylinder to bottom
bottom blade. blade.
• Cutting cylinder is in • Re-adjust cutting
heavy contact with the cylinder to the bottom
bottom blade. blade.
• Height of cut is too high. • Lower height of cut
setting.
• Cutting edges of cutting • Regrind cutting edges.
cylinder / bottom blade
are rounded.
Lines of uncut or badly cut grass in
direction of travel
POSSIBLE CAUSE REMEDY
• Tramlining of cutting • Regrind cutting edges
edges due to heavy and readjust cutting
contact caused by poor cylinder to the bottom
cylinder/blade adjustment. blade.
• Bottom blade in ground
• Raise the height of the
contact. cut.
• ‘Nose down’ attitude of • Re-adjust the height of
bottom blade. the cut.
Scalping
POSSIBLE CAUSE REMEDY
• Undulations too severe • Raise the height of the
for height of cut setting. cut.
Excessive bottom blade wear
POSSIBLE CAUSE REMEDY
• Bottom blade in heavy • Raise the height of the
ground contact. cut.
• Cutting edges of cutting • Regrind cutting edges.
cylinder / bottom blade
are rounded.
• Cutting cylinder is in
• Re-adjust cutting
heavy contact with the cylinder to bottom
bottom blade. blade.
• Damaged cutting cylinder • Regrind or replace as
or bottom blade.
necessary.
If fault persists consult your authorised Dual-Drive
service agent.
Ridge lines in the cut across the
direction of travel