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Model No. 831.159710 Serial No. (Write the serial number in the space above for reference.) Serial Number Decal (under seat) SEARS, ROEBUCK AND CO. HOFFMAN ESTATES, IL 60179 CAUTION Read all precautions and instruc- tions in this manual before using this equipment.
3. The home gym is intended for home use only. Do not use the home gym in a commer- cial, rental, or institutional setting. 4. Use the home gym only on a level surface.
Saturday, 7 a.m. until 7 p.m. Central Time (excluding holidays). To help us assist you, please note the prod- uct model number and serial number before calling. The model number is 831.159710. The serial number ® can be found on a decal attached to the WEIDER 8920 (see the front cover of this owner's manual).
ASSEMBLY Before beginning assembly, carefully read the following information and instructions: • Place all parts of the home gym in a cleared area and remove the packing materials; do not dis- pose of the packing materials until assembly is completed.
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2. Refer to drawing 2a. Press a 1” Inner Cap (61) into each end of the weight tube on the Weight Carriage (19). Note: The Square Slider Bushings (70) should be pre-assem- bled to the Weight Carriage (19) and Weight Stop (67).
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5. Press a 1 3/4” Square Inner Cap (44) into the top of one of the Press Arms (46). Press a 1” Round Inner Cap (49) into each end of the handle on the Press Arm. Attach the Press Arm to one side of the Press Frame (17) with two 5/16”...
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8. During steps 9 through 22, refer to the CABLE DIAGRAM on page 19 of this manual to verify proper cable routing. Before begin- ning this section, identify the Short Cable (23) and the Long Cable (58) by comparing the lengths and the ends of the cables.
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12. Route the Long Cable (58) around a “V”- Pulley (6). Be sure that the Cable is in the groove of the “V”-Pulley and that a Long Cable Trap (50) is turned to hold the Cable in place. Attach the “V”-Pulley (6) and the Long Cable Trap (50) to the Right Arm (48) with a 3/8”...
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16. Attach the Long Cable (58) to the Weight Carriage (19) with a 3/8” x 3/4” Bolt (69) and a 3/8” Nylon Locknut (21). Make sure that the Bolt and the Nylon Locknut are tight. 17. Using a 3/8” x 3 1/2” Bolt (16), a 3/8” Flat Washer (9), and a 3/8”...
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19. Slide a Cable Trap (66) and a 3 1/2” Pulley (15) onto each 3/8” x 3 3/4” Bolt (68). Insert the Bolts into the Front Upright (42) from the direction shown. Hand tighten a 3/8” Nylon Locknut (21) with a 3/8” Flat Washer (9) onto each Bolt.
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22. Attach the end of the Short Cable (23) to the Long “U”-Bracket (57) with a 1/4” Nylon Lock- nut (2) and a 1/4” Flat Washer (10). Do not completely tighten the Nylon Locknut; it should be threaded onto the end of the Cable until two threads are showing above the Nylon Locknut, as shown in the inset drawing.
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24. Press a 1 1/2” Square Inner Cap (32) into the Seat Frame (36). Insert the 1/4” x 2” Carriage Bolt (38) into the center hole in the Seat Plate (37). Attach the Seat Plate to the Seat (13) with two 1/4” x 3/4”...
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ADJUSTMENT, beginning on page 15 of this manual. Before using the home gym, pull each cable a few times to make sure that the cables move smoothly over the pulleys. If one of the cables does not move smoothly, find and correct the problem. IMPOR- TANT: If the cables are not properly routed, they may be damaged when heavy weight is used.
ADJUSTMENT The instructions below describe how each part of the home gym can be adjusted. Refer to the exercise poster accompanying this manual to see how the home gym should be set up for each exercise. IMPORTANT: When attaching the lat bar or nylon strap, make sure that the attachments are in the correct starting position for the exercise to be performed.
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ATTACHING AND REMOVING THE SEAT Set the bracket on the Seat Frame (36) onto the indi- cated pins on the Front Upright (42). Attach the Seat Frame to the Front Upright with the 5/16” x 2 3/4” Carriage Bolt (14) and the Seat Knob (40). For some exercises, the Seat (13) must be removed.
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WEIGHT RESISTANCE CHART This chart shows the approximate weight resistance at each weight station. The column labeled “WEIGHT ON WEIGHT CARRIAGE” refers to the amount of weight, in pounds, placed on the weight carriage. The weight resistance shown for the butterfly arm station is for each butterfly arm. Note: The actual resistance at each station may vary due to friction between the cables, pulleys, and weight carriage.
Do not use solvents. TIGHTENING THE CABLES Woven cable, the type of cable used on the home gym, can stretch slightly when it is first used. If there is slack in the cables before resistance is felt, the cables should be tightened.
If the cables have not been correctly routed, the home gym will not function properly and damage may occur. The numbers show the correct route for each cable. The starting and ending points of each cable are labeled. The small drawings show the correct position of each cable trap.
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1/4" Flat Washer (10) 5/16" Flat Washer (8) 3/8" Flat Washer (9) 5/16" x 4 3/4" Bolt (64) 831.159710 R0801A 1/4" x 3/4" Screw (18) 1/4" x 2" Screw (24) 1/4" x 2" Carriage Bolt (38) 1/4" x 2 1/2" Screw (43) 5/16"...
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1" x 7/8" Plastic Bushing (26) 1" Retainer (63) 3/8" x 3/4" Bolt (69) Cable Clip (53) 3/8" x 1 3/4" Bolt (71) 3/8" x 2" Bolt (12) 3/8" x 2 1/2"Bolt (7) 3/8" x 3 1/2" Bolt (16) 3/8" x 3 3/4" Bolt (68)
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3/4" Round Inner Cap (34) 1" Round Inner Cap (49) 1" Round Cover Cap (62) 3/8" x 2 1/2" Eyebolt (35) 1" Inner Cap (61) 1" Square Inner Cap (65) 1 3/4" Square Inner Cap (44) 1 1/2" Square Inner Cap (32) 2"...
When requesting help or service, or ordering parts, please be pre- pared to provide the following information: • The MODEL NUMBER of the product (831.159710). • The NAME of the product (WEIDER • The KEY NUMBER and DESCRIPTION of the PART (see the PART LIST and EXPLODED DRAWING on pages 22 and 23 of this manual).
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