Weider 831.159711 User Manual

USER'S MANUAL

CAUTION

Read all precautions and instruc­tions in this manual before using
this equipment. Save this manual
for future reference.

Model No. 831.159711
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

®

Visit our website at

www.weiderfitness.com

new products, prizes,

fitness tips, and much more!

2

TABLE OF CONTENTS

IMPORTANT PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

BEFORE YOU BEGIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

WEIGHT RESISTANCE CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

TROUBLE-SHOOTING AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

CABLE DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

EXERCISE GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

PART LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

EXPLODED DRAWING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

ORDERING REPLACEMENT PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Cover

FULL 90 DAY WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Cover

Note: A PART IDENTIFICATION CHART is attached in the center of this manual. Remove the PART IDENTIFI­CATION CHART before beginning assembly.

3

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.

2. It is the responsibility of the owner to ensure
that all users of the weight system are ade­quately informed of all precautions.

3. The weight system is intended for home use
only. Do not use the weight system in a com­mercial, rental, or institutional setting.

4. Use the weight system only on a level sur­face. Cover the floor or carpet beneath the
weight system to protect the floor.

5. Make sure all parts are properly tightened
each time the weight system is used.
Replace any worn parts immediately.

6. Keep children under the age of 12 and pets
away from the weight system at all times.

7. Keep hands and feet away from moving parts.

8. Always wear athletic shoes for foot protec­tion when using the weight system.

9. The weight system is designed to support a
maximum user weight of 250 pounds. Do not
place more than 125 pounds on the weight
carriage.

10. Never release the press arm, butterfly arms,
leg lever, lat bar, or nylon strap while weights
are raised; the weights will fall with great
force.

11. Make sure that the cables remain on the pul­leys at all times. If the cables bind while you
are exercising, stop immediately and make
sure that the cables are on all of the pulleys.

12. Always stand on the foot plate when per­forming an exercise that could cause the
weight system to tip.

13. Always disconnect the lat bar from the
weight system when performing an exercise
that does not use the lat bar.

14. If you feel pain or dizziness at any time while
exercising, stop immediately and begin cool­ing down.

15. The decals shown below have been applied
to the weight system. If either decal is miss­ing, or if they are not legible, please call
1-800-736-6879, Monday through Saturday,
7 a.m. until 7 p.m, Central Time, to order a
replacement decal. Apply the replacement
decals in the locations shown.

WARNING: To reduce the risk of serious injury, read the following important precau-

tions before using the weight system.

WARNING: Before beginning this or any exercise program, consult your physician. This

is especially important for persons over the age of 35 or persons with pre-existing health problems.
Read all instructions before using. SEARS assumes no responsibility for personal injury or property
damage sustained by or through the use of this product.

IMPORTANT PRECAUTIONS

4

BEFORE YOU BEGIN

ASSEMBLED
DIMENSIONS:
Height: 76 in.
Width: 37 in.
Length: 48 in.

Foot Plate

Low Pulley Station

High Pulley Station

Lat Bar

Leg Lever

Butterfly Arms

Press Arm

Weight Carriage

Seat

Backrest

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.

For your benefit, read this manual carefully before
using the WEIDER

®

8920 weight system. If you have

additional questions, please call our toll-free

HELPLINE at 1-800-736-6879, Monday through
Saturday, 7 a.m. until 7 p.m. Central Time (excluding
holidays). To help us assist you, please note the prod­uct model number and serial number before calling.
The model number is 831.159711. The serial number
can be found on a decal attached to the weight system
(see the front cover of this owner's manual).

Before reading further, please review the drawing
below and familiarize yourself with the parts that are
labeled.

5

1

56

3

5

51

51

14

Indents

1

27

4

1. Before beginning assembly, be sure that you

have read and understand the information in
the box above.

Press a 50mm Square Inner Cap (27) into the
end of the Base (4). Press a 50mm Square Outer
Cap (51) onto each end of the Stabilizer (5).

Insert two M8 x 63mm Carriage Bolts (1) up
through the Base (4). Insert two M8 x 67mm
Carriage Bolts (14) up through the Stabilizer (5).

Note: Be sure the indents around holes in the
Stabilizer are on the bottom.

Slide the bracket end of the Base (4) onto the M8
x 67mm Carriage Bolts (14) in the Stabilizer (5).
Slide the Rear Upright (56) onto the Carriage
Bolts. Hand tighten an M8 Nylon Locknut (3) onto
each Carriage Bolt.

FRAME ASSEMBLY

Before beginning assembly, carefully read the
following information and instructions:

• Assembly requires two people.

• Place all parts in a cleared area and remove the

packing materials. Do not dispose of the packing
materials until assembly is completed.

• Tighten all parts as you assemble them, unless

instructed to do otherwise.

• As you assemble the weight system, make sure

all parts are oriented as shown in the drawings.

• For help identifying small parts, use the PART

IDENTIFICATION CHART in the center of this
manual.

The following tools (not included) are required
for assembly:

• two adjustable wrenches

• one rubber mallet

• one standard screwdriver

• one Phillips screwdriver

• lubricant, such as grease or petroleum jelly,
and soapy water.

Assembly will be more convenient if you have a
socket set, a set of open-end or closed-end
wrenches, or a set of ratchet wrenches.

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.

ASSEMBLY

6

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).

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).

Refer to drawing 2b. Attach the Weight Stop
(67) to the Rear Upright (56) with an M8 x 70mm
Bolt (11) and an M8 Nylon Locknut (3).

Orient the Weight Carriage (19) as shown. Slide
the Weight Carriage onto the Rear Upright (56).

Press a 25mm Square Inner Cap (65) into the
Front Upright (42). Slide the Front Upright onto
the M8 x 63mm Carriage Bolts (1) in the Base
(4). Hand tighten an M8 Nylon Locknut (3) onto
each Carriage Bolt. Do not tighten the Nylon

Locknuts yet.

3. Press a 50mm Square Inner Cap (27) into the top
of the Rear Upright (56). Press a 45mm Square
Inner Cap (44) into each end of the crossbar on
the Top Frame (55). Press two 25mm Round
Inner Caps (49) into the top of the crossbar.

Attach the Top Frame (55) to the Front Upright
(42) with two M8 x 67mm Bolts (61), a Support
Plate (8), and two M8 Nylon Locknuts (3). Attach
the Top Frame to the Rear Upright (56) in the
same manner.

Tighten the Nylon Locknuts used in steps 1–3.

4. Press a 25mm Plastic Bushing (26) onto each

welded spacer on the Press Frame (17). Slide the
Press Frame onto the Base (4) so the Plastic
Bushings are aligned with the indicated tube in
the base. Note: This will be a tight fit; the

Plastic Bushings should fit over the ends of
the tube in the Base.

Lubricate an M10 x 198mm Bolt (59). Attach the
Press Frame (17) to the Base (4) with the Bolt, two
M10 Washers (9), and an M10 Nylon Locknut (21).

Note: Do not overtighten the Nylon Locknut;
the Press Frame must be able to pivot easily.

2

42

67

70

19

56

Hole

65

3

1

4

70

70

67

19

49

49

70

4

4

Tube

Welded

Spacers

17

Lubricate

21

9

26

9

59

2a

2b

3

19

11

67

56

ARM ASSEMBLY

3

61

61

8

44

44

49

27

55

56

42

3

Crossbar

3

8

7

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).

Assemble the other Press Arm (46) in the same
manner.

6. Identify the the Left Arm (47) and Right Arm (48).

Note the position of the welded bracket on each
Arm. Arm identification is important for step 7.
Press a Butterfly Arm Bushing (60) into each Arm.

7. Lubricate both axles on the Top Frame (55).

Slide the Right Arm (48) onto the right axle of the
Top Frame (55). Note: Be careful not to con-

fuse the Right Arm with the Left Arm (47);
refer to step 6 to identify the Right Arm. Be
sure that the upper end of the Right Arm is
behind the indicated bracket on the Top
Frame.

Tap two 25mm Retainers (63) and a 25mm Round
Cover Cap (62) onto the right axle of the Top
Frame (55). Be sure that the teeth on the

Retainers bend toward the Cover Cap, as
shown in the inset drawing.

Attach the Left Arm (47) in the same manner.

Press two 45mm Square Inner Caps (44) into the
lower ends of the Left and Right Arms (47, 48).
Wet the lower end of each Arm with soapy water.
Slide a Large Foam Pad (45) onto the lower end of
each Arm.

46

3

22

Handle

17

44

49

5

48

60

47

Welded
Brackets

6

7

Bracket

Lubricate

Axle

45

47

55

48

45

44

63

62

63

55

62

8

CABLE ASSEMBLY

11

8

9

10

58

58

55

16

21

Hook

Ball

15

50

58

7

47

58

21

7

21

6

50

23

6

42

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 sec-

tion, identify the Short Cable (23) and the Long
Cable (58) by comparing the ends of the cables.

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). Attach the
Pulley to the Top Frame (55) with an M10 x 90mm
Bolt (16) and an M10 Nylon Locknut (21). Be

sure that the end of the Cable with the ball is
on the indicated side of the Pulley and that
the Cable is between the Pulley and the hook
on the Top Frame.

10. Wrap the Long Cable (58) around a “V”-Pulley

(6). Attach the Pulley and a Long Cable Trap (50)
to the bracket on the Front Upright (42) with an
M10 x 60mm Bolt (7) and an M10 Nylon Locknut
(21). Be sure that the Cable Trap is positioned

to hold the Cable in the groove of the Pulley.

11. Route the Long Cable (58) around a “V”-Pulley

(6). Attach the Pulley and a Long Cable Trap (50)
to the Left Arm (47) 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 the Cable Trap is positioned to hold the
Cable in place.

9

12

48

21

50

7

6

58

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.

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). Note: The Pulley Bracket is pre-

assembled with a 90mm Pulley (15) and a
Cable Trap (66).

Route the Long Cable (58) around the 90mm
Pulley (15) attached to the Pulley Bracket (20).

Be sure that the Cable is in the groove of the
Pulley and that the Cable Trap (66) is turned
to hold the Cable in place. Make sure that the

M10 x 45mm Bolt (12), securing the Pulley and
Cable Trap to the Pulley Bracket, is properly tight­ened and that the Pulley Bracket can pivot freely.

14. Locate the Long “U”-Bracket (57). Route the Long

Cable (58) between the 90mm Pulley (15) and
the Cable Trap (not shown) attached to the Long
“U”-Bracket with an M10 x 45mm Bolt (12) and an
M10 Nylon Locknut (not shown). Be sure that

the Cable is in the groove of the Pulley, that
the Cable Trap is turned to hold the Cable in
place, and that the Cable and Pulley move
smoothly.

15. Route the Long Cable (58) around a 90mm Pulley

(15). Attach the Pulley to the bracket on the Top
Frame (55) with an M10 x 45mm Bolt (12) and an
M10 Nylon Locknut (21). Be sure that the Cable

is in the groove of the Pulley and that the
Cable and Pulley move smoothly.

13

58

66

15

12

20

64

55

3

20

14

58

57

12

15

15

12

15

58

Bracket

55

21

10

17

21

15

59

15

66

9

9

Bracket

17

25

16. Attach the Long Cable (58) to the Weight

Carriage (19) with an M10 x 20mm Bolt (69) and
an M10 Nylon Locknut (21).

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.

Hold a 90mm Pulley (15) inside the bracket on
the Press Frame (17). Attach the Pulley to the
Press Frame with an M10 x 198mm Bolt (59), two
M10 Washers (9), and an M10 Nylon Locknut
(21).

18. Locate the Short Cable (23). Route the Short

Cable under the indicated 90mm Pulley (15) as
shown. Be sure that the Cable is between the

Pulley and the crossbar on the Press Frame
(17).

23

Crossbar

Ball

15

18

16

19

21

69

58

17

11

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.

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. Be sure

that the Cable Trap (66) is turned to hold the
Cable in place. Properly tighten the M10 Nylon

Locknut (21) and the M10 x 90mm Bolt (16).

21. Route the Short Cable (23) around the 90mm

Pulley (15) attached to the upper hole in the
Press Frame (17). Be sure that the Cable Trap

(66) is turned to hold the Cable in place.

Properly tighten the M10 Nylon Locknut (21)

Route the Short Cable (23) around the 90mm
Pulley (15) attached to the upper hole in the Front
Upright (42). Refer to the inset drawing. Be

sure that the Cable Trap (66) is turned to hold
the Cable in place. Properly tighten the M10

Nylon Locknut (21) and the M10 x 90mm Bolt
(16).

21

23

42

15

15

66

21

21

17

20

23

21

42

15

16

23

Inset shows view

from other side

42

66

15

23

Inset shows view

from other side

42

66

15

16

19

21

15

15

16

16

9

42

66

66

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.

23. Attach the Backrest (41) to the Front Upright (42)

with two M6 x 63mm Screws (43) and two M6
Washers (10).

SEAT ASSEMBLY

12

23

41

42

10

43

22

57

3

68

23

23

57

3

68

13

24. Press a 38mm Square Inner Cap (32) into the

Seat Frame (36).

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).

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.

Attach the other end of the Seat (13) to the Seat
Frame (36) with an M6 Washer (10) and the M6 x
50mm Screw (24).

25. Press a 38mm Square Inner Cap (32) into the

Leg Lever (29).

Lubricate the M8 x 57mm Bolt (33). Attach the
Leg Lever (29) to the Seat Frame (36) with the
Bolt and an M8 Nylon Locknut (3). Do not over-

tighten the Nylon Locknut; the Leg Lever
must pivot freely.

Insert the M10 x 63mm Eyebolt (35) into the Leg
Lever (29) from the direction shown. Tighten an
M10 Nylon Locknut (21) with an M10 Washer (9)
onto the Eyebolt. Note: Be sure the Eyebolt is

positioned vertically on the Leg Lever.

26. Rest the Seat Frame (36) on the indicated pin in

the Front Upright (42). Attach the Seat Frame to
the Front Upright with an M8 x 67mm Carriage
Bolt (14) and the Seat Knob (40).

24

25

10

2

24

36

36

3

Lubricate

29

9

21

32

35

33

13

38

37

32

18

26

36

40

Pin

42

14

14

27. Press two 19mm Round Inner Caps (34) into the

ends of both Pad Tubes (28).

Insert one Pad Tube (28) into the Seat Frame
(36). Slide a Foam Pad (30) onto each end of the
Pad Tube.

Insert the other Pad Tube (28) into the Leg Lever
(29). Slide a Foam Pad (30) onto each end of the
Pad Tube.

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.

Before using the weight system, 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. IMPORTANT: If

the cables are not properly routed, they may be damaged when heavy weight is used. See the
CABLE DIAGRAM on page 19 of this manual for proper cable routing. If there is any slack in the
cables, you will need to remove it by tightening the cables; see TROUBLE-SHOOTING AND MAINTE­NANCE on page 18.

27

30

34

28

34

29

30

36

15

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. IMPOR-

TANT: 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.

54

53

53

52

58

19

Weight

Tube

Stops

ADDING WEIGHTS TO THE WEIGHT CARRIAGE

To add resistance to your workout, slide an equal
amount of weight (not included) onto each side of the
weight tube on the Weight Carriage (19). Make sure
that the weights are pushed against the stops. Note:

Due to the cables and pulleys, the actual amount
of resistance at each exercise station may vary
from the amount of weight used. Use the WEIGHT
RESISTANCE CHART on page 17 to find the actu­al amount of resistance at each weight station.

ATTACHING THE LAT BAR OR NYLON STRAP TO
A PULLEY STATION

Attach the Lat Bar (54) to the Long Cable (58) with a
Cable Clip (53). For some exercises, the Chain (52)
should be attached between the Lat Bar and the Long
Cable with two Cable Clips. Adjust the length of the

Chain between the Lat Bar and the Long Cable so
the Lat Bar is in the correct starting position for
the exercise to be performed.

The Nylon Strap (not shown) can be attached in the
same manner.

The accessories can be attached to the Short Cable
(not shown) in the same manner.

WARNING: Do not place more

than 125 pounds on the weight carriage.

16

ATTACHING AND REMOVING THE SEAT

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).

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).

ATTACHING THE LEG LEVER TO THE LOW
PULLEY STATION

To use the Leg Lever (29), the seat must be attached
to the front upright (see ATTACHING AND REMOV­ING THE SEAT above).

Attach one end of the Chain (52) to the M10 x 63mm
Eyebolt (35) with a Cable Clip (53). Attach the other
end of the Chain to the Short Cable (23) with a Cable
Clip. Note: Be sure the Eyebolt is positioned verti-

cally on the Leg Lever.

40

36

42

13

Pin

52

53

23

29

35

14

17

WEIGHT PRESS ARM BUTTERFLY ARM LOW PULLEY/ HIGH PULLEY

(lbs.) (lbs.) LEG LEVER (lbs.)

(lbs.)

0 12 7 10 10

522111816

10 31 15 25 21

15 40 20 32 26

20 50 24 39 32

25 59 29 46 37

30 68 33 53 42

35 78 38 61 47

40 87 42 68 53

45 97 47 75 58

50 106 51 82 63

55 115 56 89 68

60 125 60 96 74

65 134 64 103 79

70 144 69 111 84

75 153 73 118 89

80 162 78 125 95

85 172 82 132 100

90 181 87 139 105

95 190 91 146 110

100 200 96 153 116

105 210 100 160 121

110 219 104 168 126

115 228 109 175 131

120 237 113 182 137

125 247 118 189 142

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.

18

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.

Slack can be removed from the Short Cable (23) by
by tightening the M8 Nylon Locknut (3) at the end of
the Cable.

Additional slack can be removed by moving the
90mm Pulley (15) to the other hole in the Long “U”­Bracket (57). Remove the M10 Nylon Locknut (21)
and the M10 x 45mm Bolt (12) from the Cable Trap
(66), the Pulley, and the “U”-Bracket. Re-attach the
Pulley and the Cable Trap to the other hole in the “U”­Bracket with the Bolt and Nylon Locknut. Make sure

that the Cable Trap is in the proper position and
that the Cable and Pulley move smoothly.

Note: If a cable tends to slip off the pulleys, the
cable may have become twisted. Remove the
cable and re-install it. If a cable needs to be
replaced, see ORDERING REPLACEMENT PARTS
on the back cover of this manual.

57

66

15

3

23

12

21

19

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. Make sure that the cable traps do not touch or bind the

cables.

4

3

2

7

6

5

4

3

2

Weight Carriage—8

1—Low Pulley

1—High Pulley

Long Cable (58)

5—Long “U”-Bracket

Short Cable (23)

TOP VIEW

20

EXERCISE GUIDELINES

THE FOUR BASIC TYPES OF WORKOUTS

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 per-

formed. (A “repetition” is one complete cycle of an
exercise, such as one sit-up. A “set” is a series of
repetitions.)

The proper amount of weight for each exercise
depends upon the individual user. You must gauge
your limits and select the amount of weight that is right
for you. Begin with 3 sets of 8 repetitions for each
exercise you perform. Rest for 3 minutes after each
set. When you can complete 3 sets of 12 repetitions
without difficulty, increase the amount of weight.

Toning

You can tone your muscles by pushing them to a mod­erate percentage of their capacity. Select a moderate
amount of weight and increase the number of repeti­tions in each set. Complete as many sets of 15 to 20
repetitions as possible without discomfort. Rest for 1
minute after each set. Work your muscles by complet­ing more sets rather than by using high amounts of
weight.

Weight Loss

To lose weight, use a low amount of weight and
increase the number of repetitions in each set.
Exercise for 20 to 30 minutes, resting for a maximum
of 30 seconds between sets.

Cross Training

Cross training is an efficient way to get a complete and
well-balanced fitness program. An example of a bal­anced program is:

• Plan weight training workouts on Monday,

Wednesday, and Friday.

• Plan 20 to 30 minutes of aerobic exercise, such as

cycling or swimming, on Tuesday and Thursday.

• Rest from both weight training and aerobic exercise

for at least one full day each week to give your body
time to regenerate.

The combination of weight training and aerobic exer­cise will reshape and strengthen your body, plus devel­op your heart and lungs.

PERSONALIZING YOUR EXERCISE PROGRAM

Determining the exact length of time for each workout,
as well as the number of repetitions or sets completed,
is an individual matter. It is important to avoid overdo­ing it during the first few months of your exercise pro­gram. You should progress at your own pace and be
sensitive to your body’s signals. If you experience pain
or dizziness at any time while exercising, stop immedi­ately and begin cooling down. Find out what is wrong
before continuing. Remember that adequate rest and a
proper diet are important factors in any exercise pro­gram.

WARMING UP

Begin each workout with 5 to 10 minutes of stretching
and light exercise to warm up. Warming up prepares
your body for more strenuous exercise by increasing
circulation, raising your body temperature and deliver­ing more oxygen to your muscles.

WORKING OUT

Each workout should include 6 to 10 different exercis­es. Select exercises for every major muscle group,
emphasizing areas that you want to develop most. To
give balance and variety to your workouts, vary the
exercises from session to session.

Schedule your workouts for the time of day when your
energy level is the highest. Each workout should be
followed by at least one day of rest. Once you find the
schedule that is right for you, stick with it.

EXERCISE FORM

Maintaining proper form is an essential part of an
effective exercise program. This requires moving
through the full range of motion for each exercise, and
moving only the appropriate parts of the body.
Exercising in an uncontrolled manner will leave you
feeling exhausted. On the exercise guide accompany­ing this manual you will find photographs showing the
correct form for several exercises, and a list of the
muscles affected. Refer to the muscle chart on page
21 to find the names of the muscles.

The repetitions in each set should be performed
smoothly and without pausing. The exertion stage of
each repetition should last about half as long as the
return stage. Proper breathing is important. Exhale
during the exertion stage of each repetition and inhale
during the return stroke. Never hold your breath.

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 work-

out.

• 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.

COOLING DOWN

End each workout with 5 to 10 minutes of stretching.
Include stretches for both your arms and legs. Move

slowly as you stretch and do not bounce. Ease into
each stretch gradually and go only as far as you can
without strain. Stretching at the end of each workout
is an effective way to increase flexibility.

STAYING MOTIVATED

For motivation, keep a record of each workout. List
the date, the exercises performed, the weight used,
and the numbers of sets and repetitions completed.
Record your weight and key body measurements at
the end of every month. Remember, the key to
achieving the greatest results is to make exercise a
regular and enjoyable part of your everyday life.

MUSCLE CHART

A. Sternomastoid (neck)
B. Pectoralis Major (chest)
C. Biceps (front of arm)
D. Obliques (waist)
E. Brachioradials (forearm)
F. Hip Flexors (upper thigh)
G. Abductor (outer thigh)
H. Quadriceps (front of thigh)
I. Sartorius (front of thigh)
J. Tibialis Anterior (front of calf)
K. Soleus (front of calf)
L. Rectus Abdominus (stomach)
M. Adductor (inner thigh)
N. Trapezius (upper back)
O. Rhomboideus (upper back)
P. Deltoid (shoulder)
Q. Triceps (back of arm)
R. Latissimus Dorsi (mid back)
S. Spinae Erectors (lower back)
T. Gluteus Medius (hip)
U. Gluteus Maximus (buttocks)
V. Hamstring (back of leg)
W. Gastrocnemius (back of calf)

21

A

B

C

D

E

G

H

I

J

K

F

M

L

T

N

O

P

Q

R

S

U

V

W

PART IDENTIFICATION CHART—Model No. 831.159711 R0102A

M6 x 16mm Screw (18)

M10 Washer (9)

25mm Round Cover Cap (62)

M10 x 20mm Bolt (69)

M8 Washer (68)

M10 x 45mm Bolt (12)

M6 Washer (10)

M10 Nylon Locknut (21)

M8 Nylon Locknut (3)

M6 Nylon Locknut (2)

25mm Round Inner Cap (49)

25mm Retainer (63)

M6 x 50mm Screw (24)

M6 x 50mm Carriage Bolt (38)

M8 x 57mm Bolt (33)

25mm Square Inner Cap (65)

19mm Round Inner Cap (34)

38mm Square Inner Cap (32)

50mm Square Outer Cap (51)

M6 x 63mm Screw (43)

M10 x 60mm Bolt (7)

M8 x 63mm Bolt (22)

M8 x 67mm Bolt (61)

M8 x 63mm Carriage Bolt (1)

50mm Square Inner Cap (27)

45mm Square Inner Cap (44)

M8 x 70mm Bolt (11)

M8 x 67mm CarriageBolt (14)

M10 x 80mm Bolt (25)

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)

22

Note: “#” indicates a non-illustrated part. Specifications are subject to change without notice.

PART LIST—Model No. 831.159711 R0102A

Key No. Qty. Description

1 2 M8 x 63mm Carriage Bolt
2 1 M6 Nylon Locknut
3 16 M8 Nylon Locknut
4 1 Base
5 1 Stabilizer
6 3 “V”-Pulley
7 3 M10 x 60mm Bolt
8 2 Support Plate

9 8 M10 Washer
10 4 M6 Washer
11 1 M8 x 70mm Bolt
12 3 M10 x 45mm Bolt
13 1 Seat
14 3 M8 x 67mm Carriage Bolt
15 8 90mm Pulley
16 3 M10 x 90mm Bolt
17 1 Press Frame
18 2 M6 x 16mm Screw
19 1 Weight Carriage
20 1 Pulley Bracket
21 14 M10 Nylon Locknut
22 4 M8 x 63mm Bolt
23 1 Short Cable
24 1 M6 x 50mm Screw
25 1 M10 x 80mm Bolt
26 2 25mm Plastic Bushing
27 2 50mm Square Inner Cap
28 2 Pad Tube
29 1 Leg Lever
30 4 Foam Pad
31 2 Handgrip
32 2 38mm Square Inner Cap
33 1 M8 x 57mm Bolt
34 4 19mm Round Inner Cap
35 1 M10 x 63mm Eyebolt
36 1 Seat Frame

Key No. Qty. Description

37 1 Seat Plate
38 1 M6 x 50mm Carriage Bolt
39 1 Nylon Strap
40 1 Seat Knob
41 1 Backrest
42 1 Front Upright
43 2 M6 x 63mm Screw
44 6 45mm Square Inner Cap
45 2 Large Foam Pad
46 2 Press Arm
47 1 Left Arm
48 1 Right Arm
49 8 25mm Round Inner Cap
50 3 Long Cable Trap
51 2 50mm Square Outer Cap
52 1 Chain
53 2 Cable Clip
54 1 Lat Bar
55 1 Top Frame
56 1 Rear Upright
57 1 Long “U”-Bracket
58 1 Long Cable
59 2 M10 x 198mm Bolt
60 2 Butterfly Arm Bushing
61 4 M8 x 67mm Bolt
62 2 25mm Round Cover Cap
63 4 25mm Retainer
64 1 M8 x 115mm Bolt
65 1 25mm Square Inner Cap
66 5 Cable Trap
67 1 Weight Stop
68 1 M8 Washer
69 1 M10 x 20mm Bolt
70 3 Square Slider Bushing

# 1 User’s Manual
# 1 Exercise Guide

12

64

21

20

66

3

15

23

EXPLODED DRAWING—Model No. 831.159711 R0102A

61

66

15

7

50

60

61

55

3

27

8

56

8

21

50

3

21

42

15

6

44

12

7

49

21

44

15

16

58

6

21

63

62

48

44

45

13

60

63

62

47

44

45

21

31

12

69

70

23

21

3

67

5

53

19

70

3

14

54

52

3

68

57

49

51

39

58

49

43

11

51

4

21

41

10

66

15

9

65

3

1

31

3

27

49

46

14

40

36

16

44

24

49

34

37

18

10

30

38

34

2

35

21

22

21

33

30

9

28

32

3

29

28

9

21

32

3

9

17

26

30

9

21

30

9

34

44

49

34

49

46

25

59

15

66

15

23

59

Part No. 180576 R0102A Printed in China © 2001 Sears, Roebuck and Co.

Model No. 831.159711

QUESTIONS?

If you find that:

• you need help assembling or
operating the WEIDER

®

8920

weight system

• a part is missing

• or you need to schedule repair
service

call our toll-free HELPLINE

1-800-736-6879

Monday–Saturday, 7 am–7 pm
Central Time (excluding holidays)

REPLACEMENT
PARTS

If parts become worn and need to
be replaced, call the following toll­free number

1-800-FON-PART
(1-800-366-7278)

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.

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.

When requesting help or service, or ordering parts, please be
prepared to provide the following information:

• The MODEL NUMBER of the product (831.159711)

• The NAME of the product (WEIDER

®

8920 weight system)

• The KEY NUMBER and DESCRIPTION of the PART (see the
PART LIST and EXPLODED DRAWING on pages 22 and 23 of
this manual).

SEARS, ROEBUCK AND CO., HOFFMAN ESTATES, IL 60179

FULL 90 DAY WARRANTY

For 90 days from the date of purchase, if failure occurs due to defect in material or workmanship in this
SEARS WEIGHT SYSTEM EXERCISER, contact the nearest SEARS Service Center throughout the
United States and SEARS will repair or replace the WEIGHT SYSTEM EXERCISER, free of charge.

This warranty does not apply when the WEIGHT SYSTEM EXERCISER is used commercially or for
rental purposes.

This warranty gives you specific legal rights, and you may also have other rights which vary from state
to state.

SEARS, ROEBUCK AND CO., DEPT. 817WA, HOFFMAN ESTATES, IL 60179