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JWN-SERIES RIDE-ON POWER TROWEL • OPERATION MANUAL — REV. #1 (05/12/12) — PAGE 29
MAINTENANCE
Blade Pitch
Matching Blade Pitch for Both Sets of Blades
Sometimes it may be necessary to match blade pitch
between the two sets of blades. There are some signs
that this may be necessary. For example, the differences
in pitch could cause a noticeable difference in finish quality
between the two sets of blades, or, the difference in blade
pitch could make the machine difficult to control. This is
due to the surface area in contact with the concrete (the
blade set with the greater contact area tends to stick to the
concrete more).
Single Pitch
On a Single Pitch trowel each spider assembly can be
pitched individually, forcing the operator to constantly make
adjustments on each pitch tower.
Twin Pitch
TM
Trowels equipped with Twin Pitch
TM
Controls may need
to have blade pitch between the two sets of blades
"syncronized". If the blades need to be syncronized this
is easily accomplished by performing the following. Refer
to Figure 24.
1. Lift the pitch adjustment handle on either side. Once
lifted, that side is now disconnected from the Twin
Pitch system.
2. Adjust to match the opposite side.
3. When adjusted, lower the handle to Twin Pitch
operating position.
Figure 24. Pitch Towers
OPERATING POSITION
DISENGAGED
(ONE SIDE)