Precor C966 Serivce Manual

C966 Treadmill
Page 31
Procedure 6.1 — Replacing the Lift Motor
Note:
The replacement lift motor must be calibrated prior to installation. The lower PCA bracket
assembly must be removed to gain access to the lift motor. The defective lift motor is then
removed and the calibrated replacement lift motor is installed. The lower PCA bracket is then
replaced.
1. If the incline is at 0%, skip to step 3.
2. Set the treadmill circuit breaker in the “on” position. Press the QUICK START to start the
running belt. Use the INCLINE
▼ key to lower the incline to -3%
3. Set the treadmill circuit breaker in the “off” position and remove the AC line cord from the AC
outlet.
4. Disconnect the lift motor plugs from J2 and J5 connectors of the lower logic PCA. See
Diagram 5.2.
5. Lay the replacement lift motor on the floor in front of the treadmill and connect it’s two plugs
to the J2 & J5 connectors of the lower logic PCA.
6. Calibrate the lift motor per Procedure 4.1, steps 4-7.
7. Remove the lower PCA per Procedure 6.4, steps 1-7.
8. Remove the defective lift motor as follows: remove the screw that fastens the frame ground
wire (green with yellow stripe) to the treadmill frame. Remove the hitch and clevis pins from
the top and bottom of the lift motor. Remove the lift motor from the treadmill.
9. Set the calibrated lift motor in its mounting position. Replace the upper clevis and hitch pins.
10. Replace the lower clevis and hitch pins. It may be necessary to slightly rotate the lift tube to
align it so that the clevis pin may be inserted. To align the hole in the lift tube rotate it in the
direction that will cause the least amount of rotation to make alignment possible.
11. Connect the frame ground wire to the treadmill frame with the screw removed in step 6.
Route both lift motor cables as noted in the lift motor removal procedure.
12. Replace the lower PCA per Procedure 6.4, steps 8-12.
13. Route the lift motor cables to the lower logic PCA as noted during the previous removal
procedure. Plug the lift motor plugs into the J2 & J5 connectors on the lower logic PCA.
14. Check treadmill operation per Procedure 3.

Precor C966 Specifications

Power

motor	4.0 hp continuous duty
power at 120 V	120 v @ 50/60Hz 20 Amps
power at 240 V	240v @ 50/60Hz 20 Amps

Performance

speed	0.5 to 16 mph (1 to 26 kph)
incline	- 3% to 15% grade
frame	Powder-coated steel

Weight and Dimensions

length	86 inches (218 cm)
width with handrails	37 inches (93 cm)
width without handrails	34 inches (86 cm)
height	59 inches (150 cm)
weight	375 lbs (170 kg)
shipping weight	470 lbs (213 kg)
running surface	60 inches x 20 inches (153 cm x 51 cm)