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7. Blade
1) Inspection
(1) Before removing the blades, check the clearance
between the blade tips as shown in figure.
Replace the blades if the clearance exceeds the
specified wear limits.
Blade tip clearance
Standard 1.61 mm
Wear limit 10.0 mm
(2) Remove the blades and inspect the blades for
straightness.
Blade straightness
Wear limit 0.3 mm
(3) Blade sharpening and balance Sharpen the blade
edge to 45 degree to the blade end dimension
shown in figure.
WARNING:
USE PROTECTIVE EYES GOGGLES WHEN
SHARPENING BLADES.
Using a suitable blade balancing tool, check the
blade for balance. Level if necessary, by sharpening
the heavier end until the blade balances evenly.
(4) Blade tightening torque
132.3 – 147 N·m {13.5 – 15.0 kgf·m}
914V
915V
916V
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