ProForm 400 C Treadmill User Manual page 12

13. Attach the ground wire on the Upright Wire (69)
to the indicated hole in the Base (37) with a
Silver Ground Screw (10).
Press the indicated grommet into the Right
Upright (39).
14. Carefully raise the Uprights (38, 39).
Attach the Latch Housing (91) to the Left Upright
(38) with two 3/4" Screws (3).
Remove the knob from the pin. Make sure that
the collar and the spring are on the pin. Insert
the pin into the Latch Housing (91), and tighten
the knob back onto the pin.
15. Make sure that all parts are properly tightened before you use the treadmill. Note: Extra hardware may
be included. Keep the included hex keys in a secure place; the large hex key is used to adjust the walking belt
(see page 21). To protect the floor or carpet, place a mat under the treadmill.
13
37
Ground
Wire
14
91
Knob
3
Spring
Collar
12
Grommet
39
69
10
38
Pin