To check the blade
The blade is designed and manufactured to
withstand the loads that edging of a lawn involves.
• Check the blade for damage or cracks. A
damaged blade should always be replaced.
To check the support flange
• Check that the support flange is not cracked due
to fatigue or due to being tightened too much.
Discard the support flange if it is cracked.
To check the locknut
CAUTION: The nylon lining inside the
locknut must not be so worn that you can
turn it by hand. The lining should offer a
resistance of minimum 1.5 Nm / 13 in-lb.
The locknut must be replaced after it has
been put on approximately 10 times.
CAUTION: The locknut has a left-hand
thread. To tighten the locknut to much
can cause damage to the threads.
The locknut secures the cutting attachment on the
output shaft. Protect your hand from injury when
assembling, use the cutting attachment guard as
protection when tightening with a socket wrench.
1. When fitting, tighten the locknut in the opposite
direction to the direction of rotation of the cutting
attachment. To remove it, undo the locknut in the
same direction as the cutting attachment rotates.
2. Tighten the locknut using a socket wrench to
15-20 Nm / 11-20 ft-lb.
Safety instructions for maintenance
WARNING: Read the safety instructions
that follow before you do maintenance
on the attachment.
• Always stop the engine before you work on any
part of the cutting equipment. This continues to
move even after the throttle is released. Check
that the cutting equipment has stopped
completely and remove the HT lead from the
spark plug before you start any work on it.
• Always wear heavy-duty gloves when repairing
the cutting attachment. This is extremely sharp
and can easily cause cuts.
• Use only original spare parts for repairs.
• Store the product out of reach of children.
Assembly
To assemble the bevel gear
1. Insert the driveshaft into the bevel gearbox
housing. Turn the cutting attachment so that the
shaft engages in the bevel gear.
2. Attach the bevel gear box to the shaft tube
aligning the positioning holes.
3. Fasten the screw (A), then fasten the clamp bolt
(B) firmly, 6-8 Nm / 53-70 in-lb.
a) For model HEC-EX850:
B
A
b) For model HES-EX850:
6
1029 - 001 - 29.01.2019