Pro-Form 520 Trainer Treadmill User Manual page 7

1. Attach a Wheel (45) to one side of the Base (48)
with a Wheel Bolt (14), two Wheel Spacers (44),
and a Wheel Nut (35) as shown. Do not over-
tighten the Wheel Nut; the Wheel should turn
freely.
Attach the other Wheel (45) to the other side
of the Base (48) in the same way.
Attach the four Base Pads (37) to the Base (48)
with four 1 1/2" Screws (6); make sure that the
screws are in the indicated holes in the
Base.
2. Have a second person orient the Base (48) as
shown.
Identify the Left Upright (31), which has a large
hole near the bend as shown.
Orient the Left Upright (31) as shown, and at-
tach it to the Base (48) with two Upright Bolts
(27) and two Upright Star Washers (39); do not
tighten the Upright Bolts yet.
1
45 44
44
6
35
37
14
Hole
6
Hole
37
2
Bend
48
Large Hole
7
45
6
Hole
48
6
Hole
31
39
27
39
27
37
37