Shindaiwa B410S, Operator'S Manual

Page: 25 / 128

23
Maintenance and care
1. Insert locking tool (A) into a hole located on the right side of
angle transmission while forcing retainer spring to the left
side.
2. Insert locking tool further into blade retainer fixing slot (B) to
fix output shaft.
3. Using the socket wrench, remove the nut (C), cup (D), and
lower blade retainer (E).

Nut, cup, and lower blade retainer are not used with a nylon
line cutting head.
4. Thread nylon line cutting head (F) onto shaft (anticlockwise)
until it is tight.
5. Remove locking tool.
Checking the nylon line cutting head
1. Make sure each periphery of the 2 retaining pawls of housing
spreads almost fully up to the outer periphery of the respec-
tive cover window.
2. Check mount of cutting head on trimmer and tighten if it is
loose.
3. Check the cutter head for deflection or abnormal noise rotat-
ing it by hand. Deflection or abnormal noise can cause ab-
normal vibration to occur or mount to trimmer to loosen
during rotation which is dangerous.
4. Inspect cover and tap knob for wear. When slot appears on
bottom of the tap knob or when slot appears on cover bottom
close to outlet for nylon line, replace them with new parts
without fail.
5. Check the cutting head for crack or chip. Replace parts that
show any crack or chip with new ones without fail.
Replacing nylon line
CAUTION
 Fix output shaft securely using locking tool in order to
prevent it form rotating when nylon cutting head is
mounted.
DANGER
 Shut down trimmer engine without fail and make sure nylon line cutting head has stopped rotating before starting
replacement procedure.
To do so could lead to an accident or serious injury.