8 Next pivot the diagonal struts forward [Figure 10 step 2] and align their holes with those in
the pedal frame. The pedal frame and the struts will form a triangle. Insert the bolts at
Pivot D [Figure 12] on each side. Make sure to insert the spacer washers between the
strut and the pedal frame as shown. Turn finger tight, then back off one half turn.
9 Make sure the nuts holding the bottom end of the diagonal struts are backed off a bit from
contact so the rod assembly can mover freely in the slot. Grasp the rod in the center of
the base with one hand, grasp the top of the pedal Frame with the other, and rotate the
pedal frame upright sliding the rod in the adjustment slot forward until the unit is at your
preferred angle. Test the pedals to see if their geometry is correct for your seating
position. Adjust until comfortable, and finally tighten all pivot bolt nuts. For more tips on
adjusting geometry, see Section 2.4.
2.2 BASIC PEDAL PRESSURE ADJUSTMENT
Pedal pressure for all non-PMB equipped pedals is done in two steps. Perform adjustment in
the following sequence:
1 Overall pedal pressure, has three settings: light, medium and heavy. These are adjusted
by changing the location of the pedal resistance spring and its upper and lower mounts to
one of three possible positions [Figure 17]. Moving the spring towards the pedal arm pivot
point will reduce the pressure needed to depress the pedal. Moving the spring away from
the pivot will increase the required pressure. Generally it is recommended that the brake
pedal be set in the medium or heavy; and the gas pedal in the light or medium position.
2 Pedal spring preload is set by how far the screw supporting the lower spring seat is
turned in towards the spring. Preload is defined as the amount of initial pressure needed
to begin to move the pedal. To change preload, loosen the locknut on the lower spring
bracket and turn the set screw.
It may be advantageous to set preload at a moderate to high level if you like to rest your
foot on the pedal. If preload is too light one might be applying brake with the slightest
touch of the pedal. This is particularly a concern if one uses a two foot pedal method. Try
different settings but make sure to tighten the lock nut to preserve your settings when
finished with adjustment.
2.3 PMB BRAKE PEDAL PRESSURE ADJUSTMENT
The ECCI PMB II (Pressure Modulated Brake) mechanism has two basic adjustments:
1 Main PMB pressure adjustment screw [Figure 15]. This screw sets the ultimate amount
of pressure required to bring the brake pedal down to full travel. This effect is highly
progressive and this screw should only be used for setting maximum braking pressure.
Do not use this screw to adjust initial pedal pressure.
2 The Pedal spring preload adjustment screw sets the amount of initial pedal pressure
required to begin to depress the pedal. It is set as described in Section 2.2. Make sure to
tighten the lock nut after adjustment.
If the user desires more brake pedal pressure resistance than the standard adjustments offer,
a Race Brake kit is available from ECCI as an accessory. The Race Brake Kit dramatically
increases the hardness of the pedal and the effort to reach full travel from 50lbs of the
standard PMB to 145lbs. This should only be considered for hard mounted cockpit units for
the amount of leg pressure needed requires solid mounting of both pedal unit and the seat.
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