Cybex Pro+ Treadmill Service Manual
Service
Page 4-23
Carefully remove the wooden blocks from under the front end assembly. This will load the B.
elevation assembly.
Lower the elevation to zero percent.C.
Stop the treadmill and turn the main power switch in the front panel to the off (O) position.D.
8. Secure the motor cover.
Lower the motor cover center into position. See Figure 2.A.
Using a Phillips screwdriver, tighten the three screws on each side. B. NOTE: Be sure the screws are
catching the center motor cover’s holes.
Lower Control Board
NOTE: You will remove and replace the entire lower bracket in this procedure.
Tools Required
Phillips screwdriver•
3/8” Nutdriver or socket wrench•
ESD (Electro Static Discharge) grounding strap•
! WARNING: Disconnect the power cord before beginning this procedure. Keep wet items away
from inside parts of the treadmill. Electrical shock could occur even if the treadmill is
unplugged. Do not touch components on the lower board. A charge can remain after
unplugging the power cord and turning off the treadmill.
1. Disconnect the external power source.
Turn the main power switch on the left side to the off (O) position.A.
Unplug the treadmill from the power outlet.B.
2. Remove the motor cover.
Using a Phillips screwdriver, loosen three screws on each motor cover side (left and right). See A.
Figure 2.
Lift the motor cover center up and off the treadmill. The screws will stay in place. See Figure 2.B.
3. Disconnect the cables from the lower control board and bracket.
Observe the “armature LED” on the lower board (labeled ILT4). A.
After the armature LED goes off proceed to step 3C. B.
Pull up on the lower board shield. It will snap out.C.
Disconnect the cables from the lower control board. This includes: the elevation motor cable; D.
display cable (P1 and P2); AC line 1 (black); AC line 2 (white); drive motor (black, red and yellow)
and speed sensor cable.
Using a 3/8” nutdriver or socket wrench, remove the one nut and one washer from the ground E.
wire on the lower control bracket.
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