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10. ASSEMBLY
KE-430F, BE-438F
91
Install pulley gear R 3 so that it is aligned with the
reference line on the upper shaft 1.
With the motor assembly 13 provisionally installed, turn
it in the direction of the arrow and then tighten the four
bolts 14.
With the edge of the balancer 20 pushed up against
the edge of the cam (1), tighten the two bolts 22. In
addition, check that there are gaps at section d (crank
rod assembly 2 and balancer 20).
1) Apply grease to the rock gear shaft assembly (2).
2) Tighten the two set screws 19 so that there are
gaps of 0.2 mm at both the front and rear of the
crank rod assembly 2.
Tighten the set screw so that the screw stop a on the
motor shaft is in the same phase as the screw stop b on
the upper shaft 1.
Tighten the set screw so that the screw stop c on the
thread trimmer cam 12 is at a phase of approximately 180
degrees from the screw stop a on the motor shaft.
2868B
Reference line
2891B
2892B 2893B
2859B
Grease
Approx. 0.2 mm Approx. 0.2 mm
A
B
C
D
E