3.8

Out of 1 Ratings

Owner's of the ProForm Home Gym 640 gave it a score of 3.8 out of 5. Here's how the scores stacked up:
  • Reliability

    5.0 out of 5
  • Durability

    4.0 out of 5
  • Maintenance

    4.0 out of 5
  • Performance

    3.0 out of 5
  • Ease of Use

    3.0 out of 5
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9
11. Attach the Backrest (15) to the Backrest Tubes (53)
with four M6 x 38mm Screws (4) and four M6
Washers (50).
11
53
53
15
50
4
50
4
9. Lubricate the M10 x 136mm Bolt (22) and slide an
M10 Washer (6) onto it. Push the Bolt through the
indicated hole in the left Backrest Tube (53).
Slide a Plastic Washer (21) onto the M10 x 136mm
Bolt (22). Insert the Bolt into the hole in the left side
of the “U”-bracket (E) on the Decline Carriage (11).
Slide a Plastic Washer (21) onto the M10 x 136mm
Bolt (22) and pull it back until it barely sticks through
the “U”-bracket (E).
Place the Seat (14) so that the Seat Carriage (16) is
between the legs of the “U”-bracket. Push the M10 x
136mm Bolt (22) through the holes in the Seat
Carriage. Note: It may be easier to perform this
step if you tilt the Seat to a vertical position.
Push a Plastic Washer (21) in between the Seat
Carriage (16) and the right side of the “U”-bracket (E).
Line up the Washer and the holes, then push the M10
x 136mm Bolt (22) through the Washer and the “U”-
Bracket.
Slide a Plastic Washer (21) onto the M10 x 136mm
Bolt (22). Refer to the inset drawing and make
sure you have all parts in the right sequence.
9
22
14
6
16
11
Lubricate
E
53
21
10. Slide the indicated hole in the right Backrest Tube
(53) onto the M10 x 136mm Bolt (22).
Slide an M10 Washer (6) onto the M10 x 136mm Bolt
(22) and secure it with an M10 Nylon Locknut (1). Do
not overtighten the Nylon Locknut. You must be
able to freely pivot the Seat and Backrest Tubes.
Insert the “L”-Pin (63) through one of the holes in the
bracket (F) on the Seat Carriage (16). The “L”-Pin
should be on top of the Decline Carriage (11).
10
1
14
6
16
11
63
22
53
F
21
22
6
6
53
53
21
21
E
16
1