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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8
7. Align the adjustment holes in the Right Weight Rest
(28) with the adjustment hole in the Right Upright
(26). Insert the Adjustment Knob (36) through both
the Upright and the Weight Rest and tighten it into the
welded nut in the Upright.
Repeat this procedure for the Left Weight Rest (27).
Make sure that you fully tighten the Adjustment
Knobs and that both Weight Rests are set at the
same height.
7
8. Press a 1” x 2” Inner Cap (58) into each end of the
Seat Carriage (16).
Attach the Seat (14) to the bracket (D) on the Seat
Carriage (16) with two M6 x 16mm Screws (3). Attach
the other end of the Seat to the Seat Carriage with an
M6 x 38mm Screw (4) and an M6 Washer (50).
Press a 1” Square Inner Cap (57) into each end of
the two Backrest Tubes (53). Orient the Backrest
Tubes as shown in the drawing and place one on
each side of the Bench Frame (5).
8
26
25
27
28
36
58
14
58
50
57
57
53
Adjustment
Holes
57
5
16
3
4
6. Press a 30mm Square Inner Cap (24) into each end
of the Adjustment Tube (29).
Note: The Inner Caps (24) and many of the end-
caps used in the following steps may have been
pre-assembled from the factory.
Place the Adjustment Tube (29) in one set of adjust-
ment brackets (C) on the Uprights (25, 26). Make
sure the pins on the Adjustment Tube lock into
the slot in the adjustment brackets.
6
29
C
25
Pin
Pin
26
24
24
D