Dolmar MS-26 U Manuel D'instructions page 12

Mounting the cutter blade/nylon cutting head
The cutter blade or nylon cutting head can be replaced easily by first turning the
equipment upside down.
– Insert the Allen key through the hole in the gear case and rotate the receiver
washer (3) until it is locked with the Allen key.
– Loosen the nut (1) (left-hand thread) with the socket wrench, and remove the
nut (1) and clamp washer (2).
With the Allen key still in place
– Mount the cutter blade onto the shaft so that the guide of the receiver washer
(3) fits in the arbor hole in the cutter blade. Install the clamp washer (2) and
secure the cutter blade with the nut (1).
[Tightening torque: 13 - 23 N-m]
NOTE: Always wear gloves when handling the cutter blade.
NOTE: The cutter blade-fastening nut (with spring washer) is a consumable
part. If there appears any wear or deformation on the spring washer,
replace the nut.
NOTE: The clamp washer (2), and nut (1) are not necessary for mounting the
nylon cutting head. The nylon head should go on top of the receiver
washer (3).
– Screw the nylon cutting head onto the shaft.
– Make sure that the blade rotates counterclockwise.
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(2)
(1)
(3)
Tighten
Loosen
Allen key
(3)
Tighten
Loosen
Allen key
Rotation