® Model No. 831.159711 Serial No. USER'S MANUAL (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 instructions in this manual before using this equipment. Save this manual for future reference. Visit our website at www.weiderfitness.
TABLE OF CONTENTS IMPORTANT PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 BEFORE YOU BEGIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 ADJUSTMENT . . . . . . . . . . . . .
IMPORTANT PRECAUTIONS WARNING: To reduce the risk of serious injury, read the following important precautions before using the weight system. 1. Read all instructions in this manual and in the accompanying literature before using the weight system. Use the weight system only as described in this manual. 12. Always stand on the foot plate when performing an exercise that could cause the weight system to tip. 13.
BEFORE YOU BEGIN Thank you for selecting the versatile WEIDER® 8920 weight system. The WEIDER® 8920 offers a selection of weight stations designed to develop every major muscle group of the body. Whether your goal is to tone your body, build dramatic muscle size and strength, or improve your cardiovascular system, the 8920 will help you to achieve the specific results you want. HELPLINE at 1-800-736-6879, Monday through Saturday, 7 a.m. until 7 p.m. Central Time (excluding holidays).
ASSEMBLY • As you assemble the weight system, make sure all parts are oriented as shown in the drawings. Make Things Easier for Yourself Everything in this manual is designed to ensure that the weight system can be assembled successfully by anyone. However, it is important to realize that the versatile weight system has many parts and that the assembly process will take time. Most people find that by setting aside plenty of time, assembly will go smoothly.
2. Refer to drawing 2a. Press a 25mm Round Inner Cap (49) into each end of the weight tube on the Weight Carriage (19). Note: Make sure the Square Slider Bushings (70) are assembled to the Weight Carriage and Weight Stop (67). 70 2a 2 19 49 19 70 49 70 Turn the Weight Stop (67) so that the indicated hole is on the side shown and the Square Slider Bushing (70) is on top. Slide the Weight Stop onto the Rear Upright (56). 67 Refer to drawing 2b.
5. Press a 45mm Square Inner Cap (44) into the top of one of the Press Arms (46). Press a 25mm 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 M8 x 63mm Bolts (22) and two M8 Nylon Locknuts (3). 5 44 Handle 49 46 Assemble the other Press Arm (46) in the same manner. 22 3 17 6. Identify the the Left Arm (47) and Right Arm (48). Note the position of the welded bracket on each Arm.
CABLE ASSEMBLY 8. During steps 9 through 22, refer to the CABLE DIAGRAM on page 19 of this manual to verify proper cable routing. Before beginning this section, identify the Short Cable (23) and the Long Cable (58) by comparing the ends of the cables. 23 58 IMPORTANT: While assembling the cables, do not overtighten the bolts and nuts securing the pulleys. The pulleys must turn freely. 9. Locate the Long Cable (58). Route the Long Cable around a 90mm Pulley (15).
12. Route the Long Cable (58) around a “V”-Pulley (6). Attach the Pulley and the Long Cable Trap (50) to the Right Arm (48) with an M10 x 60mm Bolt (7) and an M10 Nylon Locknut (21). Be sure that the Cable is in the groove of the Pulley and that a Long Cable Trap (50) is turned to hold the Cable in place. 12 7 50 6 58 48 13. Refer to the inset drawing. Attach the Pulley Bracket (20) to the bracket on the Top Frame (55) with an M8 x 115mm Bolt (64) and an M8 Nylon Locknut (3).
16. Attach the Long Cable (58) to the Weight Carriage (19) with an M10 x 20mm Bolt (69) and an M10 Nylon Locknut (21). 16 58 69 21 19 17. Attach a 90mm Pulley (15) and a Cable Trap (66) to the upper hole in the Press Frame (17) with an M10 x 80mm Bolt (25), an M10 Washer (9), and an M10 Nylon Locknut (21). Make sure that the Cable Trap and the Pulley are oriented as shown. Do not tighten the Nylon Locknut yet. 17 15 66 25 59 9 Hold a 90mm Pulley (15) inside the bracket on the Press Frame (17).
19. Slide two Cable Traps (66) and two 90mm Pulleys (15) onto two M10 x 90mm Bolts (16). Insert the Bolts into the Front Upright (42) from the direction shown. Hand tighten an M10 Nylon Locknut (21) with an M10 Washer (9) onto each Bolt. Be sure that all parts are oriented as shown. Do not tighten the Nylon Locknuts yet. 19 42 16 66 15 9 16 15 66 21 20. Route the Short Cable (23) around the 90mm Pulley (15) attached to the lower hole in the Front Upright (42). See the inset drawing.
22. Attach the end of the Short Cable (23) to the Long “U”-Bracket (57) with an M8 Nylon Locknut (3) and an M8 Washer (68). 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. 22 3 57 68 23 3 68 57 23 23 SEAT ASSEMBLY 23. Attach the Backrest (41) to the Front Upright (42) with two M6 x 63mm Screws (43) and two M6 Washers (10).
24. Press a 38mm Square Inner Cap (32) into the Seat Frame (36). 24 13 Insert the M6 x 50mm Carriage Bolt (38) into the center hole in the Seat Plate (37). Attach the Seat Plate to the Seat (13) with two M6 x 16mm Screws (18). 38 37 Insert the M6 x 50mm Carriage Bolt (38) into the indicated hole in the Seat Frame (36). Tighten an M6 Nylon Locknut (2) with an M6 Washer (10) onto the Carriage Bolt.
27. Press two 19mm Round Inner Caps (34) into the ends of both Pad Tubes (28). 27 Insert one Pad Tube (28) into the Seat Frame (36). Slide a Foam Pad (30) onto each end of the Pad Tube. 36 34 Insert the other Pad Tube (28) into the Leg Lever (29). Slide a Foam Pad (30) onto each end of the Pad Tube. 30 28 34 30 29 28. Make sure that all parts have been properly tightened. The use of all remaining parts will be explained in ADJUSTMENT, beginning on page 15 of this manual.
ADJUSTMENT The instructions below describe how each part of the weight system can be adjusted. Refer to the exercise guide accompanying this manual to see how the weight system 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. If there is any slack in the cables or chain as an exercise is performed, the effectiveness of the exercise will be reduced.
ATTACHING AND REMOVING THE SEAT 40 Set the bracket on the Seat Frame (36) onto the pin on the Front Upright (42). Attach the Seat Frame to the Front Upright with the M8 x 67mm Carriage Bolt (14) and the Seat Knob (40). 36 42 13 14 For some exercises, the Seat (13) must be removed. First, be sure that the chain is not attached to the leg lever. Next, remove the Seat Knob (40) and the M8 x 67mm Carriage Bolt (14) from the Seat Frame (36). Lift the Seat Frame off the Front Upright (42).
WEIGHT RESISTANCE CHART This chart shows the approximate weight resistance at each weight station. The column labeled “WEIGHT” 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. WEIGHT PRESS ARM (lbs.) BUTTERFLY ARM (lbs.) LOW PULLEY/ LEG LEVER (lbs.) HIGH PULLEY (lbs.
TROUBLE-SHOOTING AND MAINTENANCE Make sure all parts are properly tightened each time you use the weight system. Replace any worn parts immediately. The weight system can be cleaned using a damp cloth and mild non-abrasive detergent. Do not use solvents. TIGHTENING THE CABLES Woven cable, the type of cable used on the weight system, can stretch slightly when it is first used. If there is slack in the cables before resistance is felt, the cables should be tightened.
CABLE DIAGRAM The cable diagram below shows the proper routing of the Short Cable (23) and the Long Cable (58). Use the diagram to be sure that the two cables and the cable traps have been assembled correctly. If the cables have not been correctly routed, the weight system 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.
EXERCISE GUIDELINES THE FOUR BASIC TYPES OF WORKOUTS PERSONALIZING YOUR EXERCISE PROGRAM Muscle Building To increase the size and strength of your muscles, push them close to their maximum capacity. Your muscles will continually adapt and grow as you progressively increase the intensity of your exercise. You can adjust the intensity level of an individual exercise in two ways: • by changing the amount of weight used • by changing the number of repetitions or sets performed.
Rest for a short period of time after each set. The ideal resting periods are: • Rest for three minutes after each set for a muscle building workout. • Rest for one minute after each set for a toning workout. • Rest for 30 seconds after each set for a weight loss workout. Plan to spend the first couple of weeks familiarizing yourself with the equipment and learning the proper form for each exercise. slowly as you stretch and do not bounce.
PART IDENTIFICATION CHART—Model No. 831.
M6 x 63mm Screw (43) M10 x 60mm Bolt (7) M8 x 63mm Bolt (22) 50mm Square Outer Cap (51) M8 x 67mm Bolt (61) M8 x 63mm Carriage Bolt (1) 50mm Square Inner Cap (27) M8 x 70mm Bolt (11) M8 x 67mm CarriageBolt (14) M10 x 80mm Bolt (25) 45mm Square Inner Cap (44) M10 x 90mm Bolt (16) M8 x 115mm Bolt (64) M10 x 198mm Bolt (59)
"V"-Pulley (6) (Not shown to scale) 90mm Pulley (15) (Not shown to scale)
PART LIST—Model No. 831.159711 Key No. Qty. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 2 1 16 1 1 3 3 2 8 4 1 3 1 3 8 3 1 2 1 1 14 4 1 1 1 2 2 2 1 4 2 2 1 4 1 1 Description R0102A Key No. Qty.
EXPLODED DRAWING—Model No. 831.
The model number and serial number of your WEIDER® 8920 weight system are listed on a decal attached to the frame. See the front cover of this manual to find the location of the decal. Model No. 831.159711 All replacement parts are available for immediate purchase or special order when you visit your nearest SEARS Service Center. To request service or to order parts by telephone, call the toll-free numbers listed at the left.
