Impex Marcy MWM-8150, Owner'S Manual, Page: 20 / 24

STEP 7 (See Diagram 7 & Cable Loop Diagram)
A.) Attach the 131” Lower Cable (#36) to the opening on the bottom of the Leg
Developer (#9).
B.) Attach a Pulley to the opening. Secure it with one M10 x 2 ½” Allen Bolt (#74), two Ø
7/8” x 5/8” Pulley Bushings (#43), and one M10 Aircraft Nut (#82).
C.) Draw the Cable underneath the Pulley to the opening in between the two Seat
Support Frames (#10).
D.) Attach a Pulley to the opening. Secure it with one M10 x 2 ¾” Allen Bolt (#75), two Ø
¾” Washers (#80) and one M10 Aircraft Nut (#82). Insert a M10 x 2 ½” Allen Bolts
(#74) through the hole on the two Seat Support Frames under the Pulley. Secure the
Bolt with two Ø ¾” Washers (#80) and one M10 Aircraft Nut (#82).
E.) Draw the Cable underneath the Pulley along the Main Base Frame to the opening on
the bottom of the Vertical Frame (#4). Repeat Procedure B above to install another
Pulley.
F.) Pull the Cable upward to the Crossed Double Floating Pulley Bracket (#17)
previously installed in Step-6. Install another Pulley with one M10 x 1 ¾” Allen Bolt
(#72), two Ø ¾” Washers (#80) and one M10 Aircraft Nut (#82).
G.) Draw the Cable over the Pulley then downward to the opening on the bottom of
Vertical Support Frame (#3). Repeat Procedure B to install another Pulley.
H.) Pull the Cable around the Pulley then upward to the Double Floating Pulley Bracket
(#29) previously installed in Step-5. Install another Pulley with one M10 x 1 ¾” Allen
Bolt (#72), two Ø ¾” Washers (#80) and one M10 Aircraft Nut (#82).
I.) Draw the Cable around the Pulley then pull downward to the bracket on the back of
the Vertical Support Frame. Secure the Cable to the bracket with one M10 x 1” Allen
Bolt (#71), two Ø ¾” Washers (#80), and one M10 Aircraft Nut (#82).
J.) Adjust the tension of the Cable by adjusting the Pulley position on the Double
Floating Pulley Bracket (#29). If the cables are too loose, move the Pulley up one
hole. If the cables are too tight, move the Pulley down one hole.
K.) For best performance of the machine, adjust the Cables so the Selector Stem (Top
Plate) on the weight stack is ¼” above the first plate. To select the weight, push
down on the Selector Stem to close the gap then insert the selector pin. This will
remove the slack in the cable system so the range of motion is smooth and tight.
L.) Connect the Shiver Bar (#20) to a Chain (#37) with a C-clip (#38). Connect the
Chain to the Lower Cable with another C-clip.
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