Model No. 831.154020
Serial No.
Write the serial number in the
space above for reference.
WEIGHT SYSTEM EXERCISER
User’s Manual
Serial Number Decal (under seat)
• Assembly
• Adjustments
• Troubleshooting
• Part List and Drawing
Patent Pending
CAUTION
Read all precautions and instruc-
tions in this manual before using
this equipment. Save this manu-
al for future reference.
Sears, Roebuck and Co., Hoffman Estates, IL 60179
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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 before
using the weight system. Use the weight sys-
tem only as described in this manual.
9. Keep hands and feet away from moving parts.
10. Make sure that the cables remain on the pul-
leys at all times. If the cables bind as you are
exercising, stop immediately and make sure
that the cables are on the pulleys. Replace all
cables at least every two years.
2. It is the responsibility of the owner to ensure
that all users of the weight system are ade-
quately informed of all precautions.
3. The weight system is intended for home use
only. Do not use the weight system in any
commercial, rental, or institutional setting.
11. Always secure the weight stack with the lock
pin and lock after exercising to prevent
unauthorized use of the weight system (see
LOCKING THE WEIGHT STACK on page 24).
4. Use the weight system only on a level sur-
face. Cover the floor beneath the weight sys-
tem to protect the floor.
12. Always stand on the foot plate when per-
forming an exercise that could cause the
weight system to tip.
5. Make sure all parts are properly tightened
each time the weight system is used.
Replace any worn parts immediately.
13. Never release the arms, leg lever, lat bar, leg
press, ab strap, or handle while weights are
raised. The weights will fall with great force.
6. Keep children under 12 and pets away from
the weight system at all times.
14. Always disconnect the lat bar from the
weight system when performing an exercise
that does not use the lat bar.
7. The weight system is designed to support a
maximum user weight of 300 pounds.
15. If you feel pain or dizziness at any time while
exercising, stop immediately and begin cool-
ing down.
8. Always wear athletic shoes for foot protec-
tion while exercising.
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.
3
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BEFORE YOU BEGIN
Thank you for selecting the versatile WEIDER® PRO
4250 weight system. The weight system offers an
impressive array of weight stations designed to devel-
op 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 sys-
tem, the weight system will help you to achieve the
specific results you want.
reading this manual, call 1-800-4-MY-HOME®
(1-800-469-4663). To help us assist you, please note
the product model number and serial number before
calling. The model number is 831.154020. The serial
number can be found on a decal attached to the
weight system (see the front cover of this manual for
the location of the decal).
Before reading further, please review the drawing
below and familiarize yourself with the parts that are
labeled.
For your benefit, read this manual carefully before
using the weight system. If you have questions after
ASSEMBLED
DIMENSIONS:
Height: 77 in.
Right Side
Width: 81 in.
Depth: 59 in.
Left Side
High Pulley Station
Butterfly Arm
Ab Pulley Station
Backrest
Backrest
Press Arm
Leg Press
Seat
Leg Lever
Low Pulley
Station
Weight
Stack
Foot Plate
Note: The terms “right side” and “left side” are determined relative to a person sitting on a seat;
they do not correspond to right and left on the drawings in the manual.
4
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ASSEMBLY
Make sure you have the following tools:
• Two adjustable wrenches
Make Assembly Easier for Yourself
Everything in this manual is designed to
ensure that the weight system can be assem-
bled successfully by anyone. Before begin-
ning assembly, make sure to read the
information on this page. This brief intro-
duction will save you much more time than
it takes to read it.
• One standard screwdriver
• One phillips screwdriver
• One rubber mallet
• You will also need grease or petroleum jelly, a
small amount of soapy water, and clear tape or
masking tape.
Assembly Requires Two Persons
Note: 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.
For your convenience and safety, assemble the
weight system with the help of another person.
Set Aside Enough Time
How to Identify Parts
Due to the many features of the weight system, the
assembly process will require several hours. By
setting aside plenty of time and by deciding to
make the task enjoyable, assembly will go smoothly.
You may want to assemble the weight system over
a couple of evenings.
To help you identify the small parts used in assembly,
we have included a PART IDENTIFICATION CHART
in the center of this manual. Place the chart on the
floor and use it to easily identify parts during each
assembly step. Note: Some small parts may have
been pre-attached. If a part is not in the parts
bag, check to see if it has been pre-attached.
Select a Location for the Weight System
How to Orient Parts
Because of its weight and size, the weight system
should be assembled in the location where it will be
used. Make sure that there is enough room to walk
around the weight system as you assemble it.
As you assemble the weight system, make sure all
parts are oriented exactly as shown in the drawings.
Tightening Parts
How to Unpack the Box
Tighten all parts as you assemble them, unless
instructed to do otherwise.
To make assembly as easy as possible, we have
divided the assembly process into four stages. The
parts needed for each stage are found in individual
bags. Important: Wait until you begin each stage
to open the parts bag for that stage. Place all
parts of the weight system in a cleared area and
remove the packing materials. Do not dispose of
the packing materials until assembly is completed.
Questions?
If you have questions after reading these assembly
instructions, please call 1-800-4-MY-HOME (1-800-
469-4663).
®
The Four Stages of the Assembly Process
Frame Assembly—You will begin by assembling
the base and the uprights that form the skeleton of
the weight system.
Cable Assembly—During this stage you will
attach the cables and pulleys that connect the
arms to the weights.
Arm Assembly—During this stage you will
Seat Assembly—During the final stage you will
assemble the arms and the leg lever.
assemble the seats and the backrests.
5
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1
Frame Assembly
1.
Before beginning assembly, make sure you
understand the information in the box on
page 5. See the PART IDENTIFICATION
CHART in the center of this manual for help
identifying small parts.
1
69
Insert four M8 x 75mm Carriage Bolts (69) up
through the Right Base (1). Note: It may be
helpful to place a piece of tape over each bolt
head to hold it in place.
69
2. Insert four M8 x 75mm Carriage Bolts (69) up
through the Left Base (25). Note: It may be help-
ful to place a piece of tape over each bolt
head to hold it in place.
2
25
69
69
3. Attach the Right Base (1) to the Left Base (25)
with two M8 x 78mm Bolts (82), two M8 Washers
(98), and two M8 Nylon Locknuts (91). Do not
tighten the Locknuts yet.
3
82
98
91
98
25
1
91
4. Attach the Center Base (52) to the Right Base (1)
with two M8 x 78mm Bolts (82), two M8 Washers
(98), and an M8 Nylon Locknut (91). Do not
tighten the Bolts yet.
4
25
82
98
82
98
1
Attach the Center Base (52) to the Left Base
(25) in the same manner.
98
98
52
91
6
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5. See drawing A. Attach the Right Upright (2) to
the Right Base (1) with the two indicated M8 x
75mm Carriage Bolts (69) and two M8 Nylon
Locknuts (91). Do not tighten the Locknuts yet.
5A
B
See drawing B. Attach the Left Upright (26) to
the Left Base (25) with the two indicated M8 x
75mm Carriage Bolts (69) and two M8 Nylon
Locknuts (91). Do not tighten the Locknuts yet.
26
2
91
91
25
91
91
1
69
69
6. Attach the Right Seat Frame (3) to the Right
Base (1) with the two indicated M8 x 75mm
Carriage Bolts (69) and two M8 Nylon Locknuts
(91). Do not tighten the Locknuts yet.
6
83
2
Attach the Right Seat Frame (3) to the Right
Upright (2) with an M8 x 78mm Bolt (82), an M8 x
96mm Bolt (83), an M8 Washer (98), and an M8
Nylon Locknut (91). Do not tighten the Locknut
yet.
3
91
98
82
91
91
1
69
7
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7. Attach the Left Seat Frame (27) to the Left Base
(25) with the two indicated M8 x 75mm Carriage
Bolts (69) and two M8 Nylon Locknuts (91). Do
not tighten the Locknuts yet.
7
26
98
82
82
91
Attach the Left Seat Frame (27) to the Left
Upright (26) with two M8 x 78mm Bolts (82), two
M8 Washers (98), and two M8 Nylon Locknuts
(91). Do not tighten the Locknuts yet.
98
27
91
25
91
69
8. Orient the Weight Guides (44) with the indicated
holes closer to the bottom. Attach the Weight
Guides inside of the Center Base (52) with two
M8 x 78mm Bolts (82), four M8 Washers (98),
and two M8 Nylon Locknuts (91).
8
44
44
Hole
Hole
82
98
82
98
52
98
98
91
91
8
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9. Slide two Weight Bumpers (45) onto the Weight
Guides (44). Slide the eight Weights (55), with the
pin holes on the indicated side, onto the Weight
Guides.
9
44
56
Grease
Press the Weight Tube Bumper (46) into the
Weight Tube (47). Insert the Weight Tube into the
stack of Weights (55). Make sure the pin on the
Weight Tube sits in the groove in the top
Weight.
Pin
47
Grease the indicated holes in the Top Weight (56)
with an included grease pack. Slide the Top
Weight onto the Weight Guides (44).
46
Groove
55
Pin
Holes
45
45
10. Attach the Right Top Frame (5) to the Right
Upright (2) with two M8 x 78mm Bolts (82), two
M8 Washers (98), and two M8 Nylon Locknuts
(91). Do not tighten the Locknuts yet. Make
sure the Weight Guides (44) are behind the
Right Top Frame.
10
82
98
98
5
91
91
44
44
2
11. Attach a Weight Guide (44) to the Right Top
Frame (5) with an M8 x 78mm Bolt (82), two M8
Washers (98), and an M8 Nylon Locknut (91). Do
not tighten the Locknut yet.
11
82
98
5
Repeat this step with the other Weight Guide
(44).
98
91
44
44
9
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12. Attach the Left Top Frame (36) to the Right Top
Frame (5) with two M8 x 78mm Bolts (82), two
M8 Washers (98), two M8 x 83mm Bolts (112), a
Support Plate (31), and four M8 Nylon Locknuts
(91). Do not tighten the Locknuts yet.
12
112
98
31
36
82
98
91
91
5
91
13. Attach the Left Top Frame (36) to the Left Upright
(26) with two M8 x 83mm Bolts (112), a Support
Plate (31), and two M8 Nylon Locknuts (91). Do
not tighten the Locknuts yet.
13
112
36
31
91
26
91
14. Orient the Butterfly Frame (14) as shown. Attach
the Butterfly Frame to the Right Upright (2) with
two M8 x 72mm Bolts (85), two M8 Washers (98),
and two M8 Nylon Locknuts (91). Do not tighten
the Locknuts yet.
82
14
98
98
5
91
Attach the Butterfly Frame (14) to the Right Top
Frame (5) with two M8 x 78mm Bolts (82), two
M8 Washers (98), and two M8 Nylon Locknuts
(91).
91
98
91
14
98
2
Tighten the M8 Nylon Locknuts (91) used in
steps 3–14.
85
15
Arm Assembly
74—Grease
7
Grease
23
15. Wet the lower end of the Left Butterfly Arm (6)
with soapy water. Slide a Large Foam Pad (15)
onto the Left Butterfly Arm.
14
100
90
Grease an M10 x 90mm Bolt (74) and the indicat-
ed edges of two Arm Bushings (23) with a grease
packet. Attach the Left Butterfly Arm (6) to the
Butterfly Frame (14) with the Bolt (74), an M10
Large Washer (100), the two Arm Bushings, and
an M10 Nylon Locknut (90). Make sure the bolt
head fits inside of the hole in the Butterfly
Frame.
23
6
Grease
15
Repeat this step with the Right Butterfly Arm
(7).
10
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16. Attach the Leg Bumper (59) to the Right Seat
Frame (3) with an M4 x 16mm Self-tapping Screw
(89) and an M4 Washer (96).
16
17
18
90
96
Grease
60
Grease an M10 x 75mm Bolt (60). Attach the Leg
Lever (4) to the Right Seat Frame (3) with the
Bolt and an M10 Nylon Locknut (90). Make sure
the “U”-rod is on the indicated side of the Leg
Lever. Do not overtighten the Locknut; the
Leg Lever must be able to pivot easily.
4
89
59
3
“U”-rod
17. Grease an M10 x 108mm Bolt (72). Orient the
Press Frame (29) as shown. Attach the Press
Frame to the Left Base (25) with the Bolt and an
M10 Nylon Locknut (90). Do not overtighten the
Locknut; the Press Frame must be able to
pivot easily.
29
Grease
90
72
25
18. Attach a Press Handle (32) to a Press Arm (30)
with an M10 x 65mm Bolt (77), two M10 Washers
(99), two M10 x 12mm Spacers (101), and an
M10 Nylon Locknut (90).
81
Attach a Press Arm Cap (34) to the Press Arm
(30) with an M10 x 45mm Button Bolt (81) and an
M10 Large Washer (100).
100
34
32
30
Repeat this step with the other Press Arm
(30).
30
90
99
101
101
99
77
11
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19. Attach a Press Arm (30) to the Press Frame (29)
with two M8 x 69mm Bolt (86) and two M8 Nylon
Locknuts (91).
19
Repeat this step with the other Press Arm
(30).
30
29
86
30
91
20. Grease an M10 x 108mm Bolt (72). Attach the
Leg Press Frame (28) to the Left Base (25) with
the Bolt and an M10 Nylon Locknut (90). Do not
overtighten the Locknut; the Leg Press Frame
must be able to pivot easily.
20
28
90
25
72
21. Grease an M10 x 77mm Bolt (76). Attach the
Foot Plate (38) to the Leg Press Frame (28) with
the Bolt and an M10 Nylon Locknut (90). Make
sure the decal on the Foot Plate is right side
up. Do not overtighten the Locknut; the Foot
Plate must be able to pivot easily.
21
90
Grease
76
38
28
22
Cable Assembly
28
22. See the CABLE DIAGRAMS on pages 26 and
27 as you assemble the cables and to identify
the cables.
91
Locate the Press Cable (109). Attach the Cable
to the Leg Press Frame (28) with an M8 x 86mm
Shoulder Bolt (37) and an M8 Nylon Locknut (91).
109
37
12
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23. Wrap the Press Cable (109) around a 90mm
Pulley (63). Attach the Pulley, two Half Finger
Guards (66), a Cable Trap (68), and an M10
Washer (99) to the Left Seat Frame (27) with an
M10 x 103mm Bolt (22) and an M10 Nylon
Locknut (90). Make sure the Cable Trap and the
Finger Guards are oriented as shown.
23
27
90
63
66
22
109
66
99
68
24. Wrap the Press Cable (109) around a “V”-pulley
(62). Attach the “V”-pulley, two Half Finger Guards
(66), and two M10 Washers (99) to the Leg Press
Frame (28) with an M10 x 115mm Bolt (71) and
an M10 Nylon Locknut (90). Make sure the
Finger Guards are oriented as shown.
24
28
90
109
62
99
66
99
71
66
25. Wrap the Press Cable (109) around a 90mm
Pulley (63). Attach the Pulley, two Half Finger
Guards (66), a Cable Trap (68), and an M10
Washer (99) to the Left Upright (26) with an M10
x 108mm Bolt (72) and an M10 Nylon Locknut
(90). Make sure the Cable Trap and Finger
Guards are oriented as shown.
25
26
99
63
68
66
72
109
90
66
26. Wrap the Press Cable (109) around a 90mm
Pulley (63). Attach the Pulley, two Half Finger
Guards (66), a Cable Trap (68), and an M10
Washer (99) to the Press Frame (29) with an M10
x 135mm Bolt (70). Make sure the Cable Trap
and Finger Guards are oriented as shown.
26
29
109
66
66
99
70
63
68
13
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27. Wrap the Press Cable (109) around a “V”-pulley
(62). Attach the “V”-pulley, two Half Finger Guards
(66), a Large Cable Trap (111), and an M10
Washer (99) inside the bracket on the Left
Upright (26) with an M10 x 65mm Bolt (77) and
an M10 Nylon Locknut (90). Make sure the
Cable Trap and Finger Guards are oriented as
shown.
27
66
99
62
109
77
26
90
111
66
28. Wrap the Press Cable (109) around a 90mm
Pulley (63). Attach the Pulley, two Half Finger
Guards (66), a Cable Trap (68), and an M10
Washer (99) to the Press Frame (29) with the
M10 x 135mm Bolt (70) used in step 26 and an
M10 Nylon Locknut (90). Make sure the Cable
Trap and Finger Guards are oriented as
shown.
28
90
66
63
99
109
68
66
29
70
29. Wrap the Press Cable (109) under a 90mm
Pulley (63). Attach the Pulley, two M10 Washers
(99), and two Half Finger Guards (66) inside the
bracket on the Left Base (25) with an M10 x
50mm Bolt (64) and an M10 Nylon Locknut (90).
Make sure the Finger Guards are oriented as
shown.
29
66
63
99
99
66
64
90
109
25
30. Wrap the Press Cable (109) over a 90mm Pulley
(63). Attach the Pulley and a Cable Trap (68) to
the Right Top Frame (5) with an M10 x 45mm
Bolt (80) and an M10 Nylon Locknut (90). Make
sure the Cable Trap is oriented to hold the
Cable in the groove of the Pulley.
30
80
68
63
5
90
109
14
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31. Attach the end of the Press Cable (109) to a “U”-
bracket (50) with an M8 Washer (98) and an M8
Nylon Locknut (91). Note: Do not completely
tighten the Locknut; it should be tightened so
that only two threads of the Cable show past
the Locknut, as shown in the inset drawing.
31
109
109
98
91
91
50
32. Locate the Butterfly Cable (106). Grease an M8
x 22mm Shoulder Bolt (39). Attach the Cable to
the Left Butterfly Arm (6) with the Bolt and an M8
Nylon Locknut (91). Make sure the flat edge of
the Cable is against the Butterfly Arm.
32
39
Grease
106
6
91
Flat
Edge
33. Wrap the Butterfly Cable (106) over a “V”-pulley
(62). Attach the “V”-pulley, a Large Cable Trap
(111), an M10 Washer (99), and two Full Finger
Guards (104) to the Right Upright (2) with an M10
x 62mm Bolt (73) and an M10 Nylon Locknut
(90).
33
2
106
111
90
62
73
104
99
104
34. Wrap the Butterfly Cable (106) under a 90mm
Pulley (63). Attach the Pulley and two Half Finger
Guards (66) to the Double “U”-bracket (61) with
an M10 x 48mm Bolt (84) and an M10 Nylon
Locknut (90). Make sure the Finger Guards are
oriented as shown.
34
106
63
90
66
66
61
84
35. Wrap the Butterfly Cable (106) over a “V”-pulley
(62). Attach the “V”-pulley, a Large Cable Trap
(111), an M10 Washer (99), and two Full Finger
Guards (104) to the Right Upright (2) with an M10
x 62mm Bolt (73) and an M10 Nylon Locknut
(90).
35
73
104
99
62
106
111
2
104
90
15
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36. Grease an M8 x 22mm Shoulder Bolt (39). Attach
the Butterfly Cable (106) to the Right Butterfly
Arm (7) with the Bolt and an M8 Nylon Locknut
(91). Make sure the flat edge of the Cable is
against the Butterfly Arm.
36
39
Grease
106
7
91
Flat
Edge
37. Locate the Short Cable (108). Attach the Cable
to the M8 x 96mm Bolt (83) used in step 6 with
an M8 Washer (98), an M8 x 13mm Spacer (103),
and an M8 Nylon Locknut (91).
37
108
98
2
91
103
83
38. Wrap the Short Cable (108) over* a 90mm Pulley
(63). Attach the Pulley and two Half Finger
Guards (66) to the Double “U”-bracket (61) with
an M10 x 48mm Bolt (84) and an M10 Nylon
Locknut (90). Make sure the Finger Guards are
oriented as shown.
38
90
61
66
66
108
84
63
39. Attach the end of the Short Cable (108) to a “U”-
bracket (50) with an M8 Washer (98) and an M8
Nylon Locknut (91). Note: Do not completely
tighten the Locknut; it should be tightened so
that only two threads of the Cable show past
the Locknut, as shown in the inset drawing.
39
108
50
98
91
108
91
40. Locate the Weight Cable (110). Route the Cable
up through the Right Top Frame (5) and over a
90mm Pulley (63). Attach the Pulley inside the
Top Frame with an M10 x 80mm Bolt (75), two
M10 Washers (99), two M10 x 19mm Spacers
(102), and an M10 Nylon Locknut (90).
40
110
63
99
75
102
99
90
5
102
16
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41. Route the Weight Cable (110) over a 90mm
Pulley (63) and down through the Right Top
Frame (5). Attach the Pulley inside the Top Frame
with an M10 x 80mm Bolt (75), two M10 Washers
(99), two M10 x 19mm Spacers (102), and an
M10 Nylon Locknut (90).
41
75
102
99
90
99
63
110
5
42. Wrap the Weight Cable (110) under a 90mm
Pulley (63). Attach the Pulley, a Cable Trap (68),
and two Half Finger Guards (66) at the second
hole from the top of the two Pulley Plates (51)
with an M10 x 52mm Bolt (78) and an M10 Nylon
Locknut (90). Make sure the Cable Trap and
Finger Guards are oriented as shown.
42
110
68
78
63
66
90
66
51
51
43. Wrap the Weight Cable (110) over a 90mm Pulley
(63). Attach the Pulley to the indicated bracket on
the Right Top Frame (5) with an M10 x 45mm
Bolt (80) and an M10 Nylon Locknut (90).
43
Bracket
5
90
63
80
110
Bracket
44. Wrap the Weight Cable (110) over a 90mm Pulley
(63). Attach the Pulley and a Cable Trap (68) to
the indicated bracket on the Right Top Frame (5)
with an M10 x 45mm Bolt (80) and an M10 Nylon
Locknut (90). Make sure the Cable Trap is ori-
ented to hold the Cable in the groove of the
Pulley.
44
Attach pulley
on this side
5
80
63
110
68
90
45. Set the M12 Washer (33) on top of the Weight
Tube (47). Thread the M12 Nut (49) all the way
onto the Weight Cable (110).
45
110
49
33
47
Thread the Weight Cable (110) into the Weight
Tube (47) a couple of turns.
17
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46. Locate the Ab Cable (107). Route the small ball
on the Cable through the Leg Lever (4) and the
Right Seat Frame (3). Make sure the Cable is
over the rod in the Seat Frame.
46
3
4
63
90
99
101
Attach a 90mm Pulley (63) inside the Leg Lever
(4), over the Ab Cable (107), with an M10 x
65mm Bolt (77), two M10 Washers (99), two M10
x 12mm Spacers (101), and an M10 Nylon
Locknut (90).
Large
Ball
Rod
77
99
107
101
47. Attach a 90mm Pulley (63) inside the Right Seat
Frame (3), over the Ab Cable (107), with an M10
x 45mm Bolt (80) and an M10 Nylon Locknut
(90).
47
63
90
3
107
80
48. Route the Ab Cable (107) through the Right
Upright (2) and under a 90mm Pulley (63). Attach
the Pulley and two Half Finger Guards (66) to the
Right Base (1) with an M10 x 50mm Bolt (64) and
an M10 Nylon Locknut (90). Make sure the
Finger Guards are oriented as shown.
48
90
66
63
66
64
107
2
1
49. Wrap the Ab Cable (107) over a 90mm Pulley
(63). Attach the Pulley, a Cable Trap (68), and
two Half Finger Guards (66) to the lower hole in
the indicated “U”-bracket (50) with an M10 x
52mm Bolt (78) and an M10 Nylon Locknut (90).
Make sure the Cable Trap and Finger Guards
are oriented as shown.
49
90
68
66
50
66
78
63
107
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50. Wrap the Ab Cable (107) under a 90mm Pulley
(63). Attach the Pulley, a Cable Trap (68), and
two Half Finger Guards (66) to the Right Base (1)
with an M10 x 50mm Bolt (64) and an M10 Nylon
Locknut (90). Make sure the Cable Trap and
Finger Guards are oriented as shown.
50
90
107
63
66
1
68
66
64
51. Wrap the Ab Cable (107) over a 90mm Pulley
(63). Attach the Pulley, a Cable Trap (68), and
two Half Finger Guards (66) at the second hole
from the bottom of the two Pulley Plates (51) with
an M10 x 52mm Bolt (78) and an M10 Nylon
Locknut (90). Make sure the Cable Trap and
Finger Guards are oriented as shown.
51
66
78
68
107
51
90
63
66
52. Wrap the Ab Cable (107) under a 90mm Pulley
(63). Attach the Pulley, a Cable Trap (68), and
two Half Finger Covers (66) to the Right Base (1)
with an M10 x 50mm Bolt (64) and an M10 Nylon
Locknut (90). Make sure the Cable Trap and
Finger Guards are oriented as shown.
52
90
66
107
63
68
1
64
66
53. Wrap the Ab Cable (107) over a 90mm Pulley
(63). Attach the Pulley, a Cable Trap (68), and
two Half Finger Guards (66) to the lower hole in
the indicated “U”-bracket (50) with an M10 x
52mm Bolt (78) and an M10 Nylon Locknut (90).
Make sure the Cable Trap and Finger Guards
are oriented as shown.
53
90
66
50
66
78
68
63
107
54. Wrap the Ab Cable (107) under a 90mm Pulley
(63). Attach the Pulley, a Cable Trap (68) and two
Half Finger Guards (66) to the Right Base (1) with
an M10 x 50mm Bolt (64) and an M10 Nylon
Locknut (90). Make sure the Cable Trap and
Finger Guards are oriented as shown.
54
90
66
66
64
107
63
1
68
19
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55. Wrap the Ab Cable (107) over a 90mm Pulley
(63). Attach the Pulley and the two Quarter Finger
Guards (105) to the Right Upright (2) with an M10
x 108mm Bolt (72), an M10 Washer (99), and an
M10 Nylon Locknut (90). Make sure that the rod
is inserted through both Finger Guards and is
over the Cable.
55
Rod
105
90
99
63
105
72
107
2
56. Tighten the Weight Cable (110) into the Weight
Tube (not shown) until all the slack is taken out of
the cables. Tighten the M12 Nut (49) on the
Weight Cable against the M12 Washer (33).
56
110
49
33
57
Seat Assembly
26
88
53
9
57. Attach a Backrest (9) to the Backrest Frame (53)
with four M6 x 16mm Screws (88).
43
Slide the Backrest Frame (53) into the Left
Upright (26). Engage the Knob (43) into the
Upright and Backrest Frame, and turn it clockwise
until it is tight.
88
58. Attach a Seat (8) to the Left Seat Frame (27) with
four M6 x 16mm Screws (88).
58
8
Repeat this step with the other Seat (8) and
the Right Seat Frame (not shown).
27
88
88
20
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59. Attach a Backrest (9) to the Right Upright (2) with
four M6 x 16mm Screws (88).
59
88
2
9
88
60. Press the two Shroud Covers (11) onto the
Shroud (10). Attach the Shroud to the Right Top
Frame (5) and the Center Base (52) with four M6
x 22mm Bolts (87), four M6 Washers (97), and
four M6 Nylon Locknuts (92). Be careful not to
scratch yourself when reaching through the
hole in the Shroud.
60
11
92
92
97
5
97
87
10
52
92
92
11
97
97
87
21
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61. Attach the Lock Plate (21) to the Right Seat
Frame (3) with an M8 x 68mm Shoulder Bolt (41),
an M8 Washer (98), and an M8 Nylon Locknut
(91). Do not overtighten the Locknut; the Lock
Plate must be able to pivot easily.
61
62
63
91
89
3
98
Attach the Leg Pin (24) to the Right Seat Frame
(3) with an M4 x 16mm Self-tapping Screw (89).
Insert the Leg Pin through the Leg Lever (4) and
the Lock Plate (21).
24
21
4
41
62. Slide the Pad Tube (16) through the Right Seat
Frame (3). Slide two Small Foam Pads (18) onto
the Pad Tube. Press two Foam Caps (17) into the
Pad Tubes.
17
18
3
16
18
17
63. Slide two Leg Lever Foam Pads (35) onto the
Leg Lever (4).
35
4
35
64. Make sure that all parts have been properly tightened. The use of the remaining parts will be explained in
ADJUSTMENTS, beginning on the following page.
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 installed, they may be damaged when heavy weight is used. See the
CABLE DIAGRAMS on pages 26 and 27 of this manual for proper cable routing. If there is any slack
in the cables, you will need to remove the slack by tightening the cables. See MAINTENANCE on
page 28.
22
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ADJUSTMENTS
This section explains how to adjust the weight system. See the EXERCISE GUIDELINES on page 29 for important
information about how to get the most benefit from your exercise program. Also, see the accompanying exercise
guide to see the correct form for each exercise.
Make sure all parts are properly tightened each time the weight system is used. Replace any worn parts immediate-
ly. The weight system can be cleaned with a damp cloth and a mild, non-abrasive detergent. Do not use solvents.
CHANGING THE WEIGHT SETTING
To change the setting of the weight stack, insert the
Weight Pin (57) under the desired Weight (55). Insert
the Weight Pin so that the bent end touches the
weight stack. Turn the bent end down. Note: Be
careful not to scratch yourself when reaching
through the hole in the Shroud (10). Do not use
the Top Weight (56, not shown) by itself.
55
Note: Due to the cables and pulleys, the amount
of resistance at each exercise station may vary
from the weight setting. Use the WEIGHT
RESISTANCE CHART on page 25 to find the
approximate amount of resistance at each weight
station.
10
57
ATTACHING THE ACCESSORIES TO A PULLEY
STATION
Attach the Handle (93) to the Ab Cable (107) at the low
pulley station with a Cable Clip (95). For some exercis-
es, the Chain (94) should be attached between the
Handle and the Cable with two Cable Clips. Adjust the
length of the Chain between the Handle and the
Cable so that the Handle is in the correct starting
position for the exercise to be performed.
21
95
94
107
95
The Lat Bar (not shown), the Ab Strap (79), or the
Handle (93) can be attached at any pulley station in
the same manner. Always engage the Lock Plate (21)
when using the low pulley station (see USING THE
LOCK LEVER below).
93
USING THE LOCK PLATE
When using the low pulley station, engage the Leg
Pin (24) into the Leg Lever (4) and the Lock Plate
(21).
4
24
To use the Leg Lever (4), engage the Leg Pin (24)
into the Right Seat Frame (3) and the Lock Plate (21).
21
3
23
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ADJUSTING THE BACKREST
26
To adjust the position of the left Backrest (9), disen-
gaging the Knob (43) from the Left Upright (26) and
move the Backrest to the desired position. Reengage
the Knob into the Left Upright and the Backrest
Frame (53). Make sure the Knob is fully tightened.
53
43
9
LOCKING THE WEIGHT STACK
44
Lock the weight stack by inserting the Lock Pin (65)
through a Weight Guide (44) and securing the Lock
(48) onto the Lock Pin.
48
65
24
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WEIGHT RESISTANCE CHART
The chart below shows the approximate weight resistance at each exercise station. “Top” refers to the 6 lb. top
weight. The other numbers refer to the 12.5 lb. weight plates. Weight resistance shown for the butterfly arm sta-
tion is for each arm. Note: The actual resistance at each station may vary due to differences in individual
weight plates as well as friction between the cables, pulleys, and weight guides.
WEIGHT
HIGH
PULLEY
(lbs.)
BUTTER-
FLY ARM
(lbs.)
PRESS
ARM
(lbs.)
LEG
LEVER
(lbs.)
LOW
PULLEY
(lbs.)
LEG
PRESS
(lbs.)
AB
STATION
(lbs.)
Top
1
10
25
16
30
45
51
60
73
88
93
106
31
48
11
22
27
35
45
59
19
27
2
38
81
39
43
84
41
3
54
97
49
61
118
146
162
193
223
248
60
4
67
120
138
1550
176
214
66
71
73
5
84
85
87
90
6
97
94
107
120
143
100
114
130
7
105
122
106
126
8
25
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CABLE DIAGRAMS
The cable diagrams below show the proper routing of the Butterfly Cable (106), the Ab Cable (107), the Short
Cable (108), the Press Cable (109), and the Weight Cable (110). Use the diagram to make sure that the cables
and the cable traps have been assembled correctly. If the cables have not been correctly routed, the weight
bench will not function properly and damage may occur. The numbers show the correct route for each cable.
Make sure that the cable traps do not touch or bind the cables.
Butterfly Cable (106)
4
Length: 5 feet
2
5
1
3
6
10
2
1
3
4
Short Cable (108)
Length: 3 feet 11 inches
8
5
3
Ab Cable (107)
Length: 21 feet 1 inch
7
2
1
9
26
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5
2
9
1
4
3
Weight Cable (110)
Length: 12 feet 1 inch
10
6
6
8
7
4
Press Cable (109)
Length: 22 feet 6 inches
5
3
2
1
27
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MAINTENANCE
Make sure all parts are properly tightened each time the weight system is used. Replace any worn parts imme-
diately. The weight system can be cleaned with a damp cloth and a 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. To tighten the cables, first insert the
weight pin into the middle of the weight stack. Slack can be removed from these cables several ways:
•
See drawing 1. Tighten the M8 Nylon Locknut
(91) that connects the end of a cable to a “U”-
bracket (50).
1
50
66
90
•
See drawing 1. Remove the M10 Nylon Locknut
(90) and the M10 x 52mm Bolt (78) from the
Cable Trap (68), the 90mm Pulley (63), the two
Half Finger Guards (66), and a “U”-bracket (50).
Reattach the Pulley, Cable Trap, and Finger
Guards to the other hole in the “U”-bracket. Make
sure that the Cable Trap and Finger Guards
are oriented as shown and that the cable and
Pulley move smoothly.
91
66
68
63
78
•
See drawing 2. Remove the M10 Nylon Locknut
(90) and the M10 x 52mm Bolt (78) from the
Cable Trap (68), the 90mm Pulley (63), the two
Half Finger Guards (66), and the two Pulley
Plates (51). Reattach the Pulley, Cable Trap, and
Finger Guards to the next closer hole to the cen-
ter of the Pulley Plates. Make sure that the
Cable Trap is oriented to hold the cable in the
groove of the Pulley, that the Finger Guards
are oriented as shown, and that the Cable and
Pulley move smoothly.
2
78
66
51
63
66
90
68
•
See drawing 3. Loosen the M12 Nut (49) on the
Weight Cable (110). Tighten the Cable into the
Weight Tube (not shown) until the slack is
removed from the Cable. Retighten the M12 Nut
against the M12 Washer (33).
3
110
33
49
Do not overtighten the cables. If the cables are overtightened, the top weight will be lifted off the weight
stack. If a cable tends to slip off the pulleys often, it may have become twisted. Remove the cable and
re-install it. If the cables need to be replaced, see ORDERING REPLACEMENT PARTS on the back cover of
this manual.
28
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EXERCISE GUIDELINES
THE FOUR BASIC TYPES OF WORKOUTS
PERSONALIZING YOUR EXERCISE PROGRAM
Muscle Building
To increase the size and strength of your muscles,
Determining the exact length of time for each workout,
as well as the number of repetitions or sets completed,
push them close to their maximum capacity. Your mus- is an individual matter. It is important to avoid overdo-
cles will continually adapt and grow as you progres-
sively increase the intensity of your exercise. You can
adjust the intensity level of an individual exercise in
two ways:
• by changing the amount of resistance 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.)
ing it during the first few months of your exercise pro-
gram. 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 immedi-
ately 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 pro-
gram.
WARMING UP
The proper amount of resistance for each exercise
depends upon the individual user. You must gauge
your limits and select the amount of resistance that is
Begin each workout with 5 to 10 minutes of stretching
and light exercise to warm up. Warming up prepares
right for you. Begin with 3 sets of 8 repetitions for each your body for more strenuous exercise by increasing
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 resistance.
circulation, raising your body temperature and deliver-
ing more oxygen to your muscles.
WORKING OUT
Toning
You can tone your muscles by pushing them to a mod- Each workout should include 6 to 10 different exercis-
erate percentage of their capacity. Select a moderate
amount of resistance and increase the number of rep-
etitions 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 com-
es. 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.
pleting more sets rather than by using high amounts of Schedule your workouts for the time of day when your
resistance.
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.
Weight Loss
To lose weight, use a low amount of resistance and
increase the number of repetitions in each set.
Exercise for 20 to 30 minutes, resting for a maximum
of 30 seconds between sets.
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
Cross Training
Cross training is an efficient way to get a complete and moving only the appropriate parts of the body.
well-balanced fitness program. An example of a bal-
anced program is:
• Plan strength training workouts on Monday,
Wednesday, and Friday.
• Plan 20 to 30 minutes of aerobic exercise, such as
running on a treadmill or riding on an elliptical or
exercise bike, on Tuesday and Thursday.
Exercising in an uncontrolled manner will leave you
feeling exhausted. On the exercise guide accompany-
ing this manual you will find photographs showing the
correct form for several exercises, and a list of the
muscles affected. See the muscle chart on the next
page to find the names of the muscles.
• Rest from both strength training and aerobic exercise The repetitions in each set should be performed
for at least one full day each week to give your body
time to regenerate.
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
The combination of strength training and aerobic exer- during the exertion stage of each repetition and inhale
cise will reshape and strengthen your body, plus devel- during the return stroke. Never hold your breath.
op your heart and lungs.
29
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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.
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.
• Rest for one minute after each set for a toning work-
out.
STAYING MOTIVATED
• 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.
For motivation, keep a record of each workout. The
chart on page 31 of this manual can be photocopied
and used to schedule and record your workouts. List
the date, the exercises performed, the resistance
used, and the numbers of sets and repetitions com-
pleted. Record your weight and key body measure-
ments 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.
COOLING DOWN
End each workout with 5 to 10 minutes of stretching.
Include stretches for both your arms and legs. Move
MUSCLE CHART
O
A. Sternomastoid (neck)
A
B. Pectoralis Major (chest)
C. Biceps (front of arm)
D. Obliques (waist)
P
L
Q
B
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)
R
S
C
D
E
T
F
M
N
U
L. Anterior Deltoid (shoulder)
M. Rectus Abdominus (stomach)
N. Adductor (inner thigh)
G
H
I
V
O. Trapezius (upper back)
P. Rhomboideus (upper back)
Q. Posterior Deltoid (shoulder)
R. Triceps (back of arm)
S. Latissimus Dorsi (mid back)
T. Spinae Erectors (lower back)
U. Gluteus Medius (hip)
W
X
J
K
V. Gluteus Maximus (buttocks)
W. Hamstring (back of leg)
X. Gastrocnemius (back of calf)
30
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EXERCISE
WEIGHT
WEIGHT
WEIGHT
SETS
SETS
SETS
REPS
REPS
REPS
MONDAY
Date:
/
/
AEROBIC EXERCISE
EXERCISE
TUESDAY
Date:
/
/
WEDNESDAY
Date:
/
/
AEROBIC EXERCISE
EXERCISE
THURSDAY
Date:
/
/
FRIDAY
Date:
/
/
Make photocopies of this page for scheduling and recording your workouts.
31
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PART IDENTIFICATION CHART—Model No. 831.154020
R0704A
See the drawings below to identify small parts used in assembly. The number in parentheses by each drawing is
the key number of the part, from the PART LIST in the center of this manual. Note: Some small parts may
have been pre-attached. If a part is not in the parts bag, check to see if it has been pre-attached. If a part
is missing, call toll-free 1-877-992-5999.
M6 Nylon Locknut (92)
M8 Nylon Locknut (91)
M10 x 77mm Bolt (76)
M10 x 75mm Bolt (60)
M8 x 72mm Bolt (85)
M8 x 69mm Bolt (86)
M10 Nylon Locknut (90)
M8 x 68mm Shoulder Bolt (41)
M10 x 65mm Bolt (77)
M4 Washer (96)
M12 Nut (49)
M6 Washer (97)
M10 x 62mm Bolt (73)
M10 x 52mm Bolt (78)
M12 Washer (33)
M8 Washer (98)
M10 x 50mm Bolt (64)
M10 x 48mm Bolt (84)
M10 Large Washer (100)
M10 Washer (99)
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PART LIST—Model No. 831.154020
R0704A
Key No. Qty.
Description
Key No. Qty.
Description
1
2
3
4
5
6
7
8
1
1
1
1
1
1
1
2
2
1
2
1
1
1
2
1
2
2
6
8
1
1
4
1
1
1
1
1
1
2
2
2
2
2
2
1
1
1
2
1
1
1
1
2
2
1
1
1
1
2
2
1
1
1
8
1
1
2
Right Base
Right Upright
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
#
1
1
1
4
23
5
1
34
2
13
8
1
1
4
2
2
2
1
4
4
1
4
2
19
1
2
2
4
4
16
2
34
42
4
1
1
4
1
4
29
22
4
6
4
1
4
2
1
1
1
1
1
3
4
1
1
Leg Bumper
M10 x 75mm Bolt
Double “U”-bracket
“V”-pulley
90mm Pulley
M10 x 50mm Bolt
Lock Pin
Half Finger Guard
Base Bushing
Cable Trap
M8 x 75mm Carriage Bolt
M10 x 135mm Bolt
M10 x 115mm Bolt
M10 x 108mm Bolt
M10 x 62mm Bolt
M10 x 90mm Bolt
M10 x 80mm Bolt
M10 x 77mm Bolt
M10 x 65mm Bolt
M10 x 52mm Bolt
Ab Strap
M10 x 45mm Bolt
M10 x 45mm Button Bolt
M8 x 78mm Bolt
M8 x 96mm Bolt
M10 x 48mm Bolt
M8 x 72mm Bolt
M8 x 69mm Bolt
M6 x 22mm Screw
M6 x 16mm Screw
M4 x 16mm Self-tapping Screw
M10 Nylon Locknut
M8 Nylon Locknut
M6 Nylon Locknut
Handle
Chain
Cable Clip
M4 Washer
M6 Washer
M8 Washer
M10 Washer
M10 Large Washer
M10 x 12mm Spacer
M10 x 19mm Spacer
M8 x 13mm Spacer
Full Finger Guard
Quarter Guard
Butterfly Cable
Ab Cable
Right Seat Frame
Leg Lever
Right Top Frame
Left Butterfly Arm
Right Butterfly Arm
Seat
9
Backrest
Shroud
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
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Shroud Cover
50mm Round Inner Cap
Lat Bar
Butterfly Frame
Large Foam Pad
Pad Tube
Foam Cap
Small Foam Pad
63mm Round Inner Cap
50mm Round Inner Cap
Lock Plate
M10 x 103mm Bolt
Arm Bushing
Leg Pin
Left Base
Left Upright
Left Seat Frame
Leg Press Frame
Press Frame
Press Arm
Support Plate
Press Handle
M12 Washer
Press Arm Cap
Leg Lever Foam Pad
Left Top Frame
M8 x 86mm Shoulder Bolt
Foot Plate
M8 x 22mm Shoulder Bolt
50mm Round Outer Cap
M8 x 68mm Shoulder Bolt
56mm Round Inner Cap
Knob
Weight Guide
Weight Bumper
Weight Tube Bumper
Weight Tube
Lock
M12 Nut
“U”-bracket
Pulley Plate
Short Cable
Press Cable
Weight Cable
Large Cable Trap
M8 x 83mm Bolt
User’s Manual
Exercise Guide
Grease Packet
Allen Wrench
Center Base
Backrest Frame
25mm x 40mm Inner Cap
Weight
Top Weight
Weight Pin
#
#
#
2
1
Handgrip
Note: “#” indicates a non-illustrated part. Specifications are subject to change without notice. See the back cover
of the user’s manual for information about ordering replacement parts. If a part is missing, call toll-free
1-877-992-5999.
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EXPLODED DRAWING—Model No. 831.154020
R0704A
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FULL 90-DAY WARRANTY
For 90 days from the date of purchase, if failure occurs due to defect in material or workmanship in this
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
Part No. 214020 R0704A
Printed in China © 2004 Sears, Roebuck and Co.
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