SPORTS ART DS972 Owner's Manual page 26

OPERATION Test the Product (Continued)
(c) Insert each stack fork into the gap under the lowest weight plate. Make
sure the gap at area B is between 3~5mm as shown when adjusting.
Adjust the nut at area A until the upper stack carriage moves slightly. The
gap between the (X) and (Y) nut must be within 35mm(1.4") and the (X)
nut must be secured to a depth of 20mm. If the gap exceeds the 35mm
limit, the cable needs to be adjusted to the proper length to avoid it's
come off.
To adjust the cable, first insert an open end wrench into (Z) hole. Loosen (Y)
nut and then adjust (X) nut. If the cable is too long, adjust (X) nut downward.
If too short, adjust (X) nut upward. After adjusting (X) nut, tighten (Y) nut
against the weight stack to secure this position.
(A)
25
(B)