Wheel & Trigger Tension Adjustment; Trigger Slide Adjustment - FUTABA 4PM Short Manual

Wheel & Trigger Tension Adjustment
Make this adjustment when you want to change the wheel or trigger spring's tension.
Adjustment
1
Using a 1.5mm hex wrench, adjust the spring
tension of the wheel or throttle by turning the
screw shown in the figure.
The wheel side is inside the adjustment hole.
• The spring is set to the weakest tension at the factory.
• When the adjusting screw is turned clockwise, the spring
tension increases.
Note:
The adjustment range is up to 7 to 8 turns from the fully tightened (strongest) posi-
tion. If turned farther than this, the adjusting screw may fall out.

Trigger Slide Adjustment

The throttle trigger position can be moved forward and backward.
Adjustment
1
Using a 2.0 mm hex wrench, loosen the trig-
ger slide mounting screw by turning it slightly
counterclockwise.
• Always loosen this screw.
Note:
If the trigger slide screw is turned
too much, the screw may fall out.
2
Using a 2.5mm hex wrench, turn the trigger
slide adjusting screw, and adjust the trigger
slide position within the marked range. When
the adjusting screw is turned clockwise, the
trigger slide moves away from the grip handle.
3
Retighten the mounting screw loosened at step
1 and fasten the trigger slide.
Wheel tension
adjusting screw
Trigger tension
adjusting screw
Adjust so that the bottom
does not exceed the top marking line.
Trigger slide
mounting screw
mark
21