Sears 831.154020 User Manual
Model No. 831.154020
Serial No.
Write the serial number in the
space above for reference.
Serial Number Decal (under seat)
• Assembly
• Adjustments
• Troubleshooting
• Part List and Drawing
WEIGHT SYSTEM EXERCISER
User’s Manual
CAUTION
Read all precautions and instructions in this manual before using
this equipment. Save this manu
al for future reference.
Patent Pending
Sears, Roebuck and Co., Hoffman Estates, IL
60179
TABLE OF CONTENTS
WARNING DECAL PLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
IMPORTANT PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
BEFORE
ASSEMBL
ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
WEIGHT RESISTANCE CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
CABLE DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
EXERCISE GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
ORDERING REPLACEMENT PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Cover
FULL 90-DAY WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back Cover
Note: A PART IDENTIFICATION CHART and a PART LIST/EXPLODED DRAWING are attached in the center of
this manual. Remove the
ning assembly.
YOU BEGIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
PART IDENTIFICATION CHART and PART LIST/EXPLODED DRAWING before begin-
WARNING DECAL PLACEMENT
The decal shown here
has been placed on the
weight system. If the
decal is missing or illegible, please call toll-free
1-877-992-5999, Monday
through Friday, 6 a.m.
until 6 p.m. Mountain
Time, and order a free
replacement decal. Apply
the decal in the location
shown.
2
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 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 any
commercial, rental, or institutional setting.
4. Use the weight system only on a level surface. Cover the floor 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 12 and pets away from
the weight system at all times.
7. The weight system is designed to support a
maximum user weight of 300 pounds.
8. Always wear athletic shoes for foot protection while exercising.
9. Keep hands and feet away from moving parts.
10. Make sure that the cables remain on the pulleys 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.
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).
12. Always stand on the foot plate when performing an exercise that could cause the
weight system to tip.
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.
Always disconnect the lat bar from the
14.
weight system when performing an exercise
that does not use the lat bar.
15. If you feel pain or dizziness at any time while
exercising, stop immediately and begin cooling down.
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
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 develop every major muscle group of the body. Whether
your goal is to tone your body
size and strength, or improve your cardiovascular system, the weight system will help you to achieve the
specific results you want.
For your benefit, read this manual carefully before
using the weight system. If you have questions after
Right Side
High Pulley Station
Butterfly Arm
Ab Pulley Station
, build dramatic muscle
reading this manual,
(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.
call 1-800-4-MY-HOME
Left Side
ASSEMBLED
DIMENSIONS:
Height: 77 in.
Width: 81 in.
Depth: 59 in.
®
Backrest
Backrest
Press Arm
Seat
Leg Lever
Low Pulley
Station
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.
Weight
Stack
Leg Press
4
ASSEMBLY
Make Assembly Easier for Yourself
Everything in this manual is designed to
ensure that the weight system can be assembled successfully by anyone. Before begin-
ning assembly, make sure to read the
information on this page. This brief introduction will save you much more time than
it takes to read it.
Assembly Requires Two Persons
For your convenience and safety, assemble the
weight system with the help of another person.
Make sure you have the following tools:
• Two adjustable wrenches
• 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.
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.
Set Aside Enough Time
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.
Select a Location for the Weight System
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.
How to Unpack the Box
To make assembly as easy as possible, we have
divided the assembly process into four stages.
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
the packing materials until assembly is completed.
The
of
How to Identify Parts
To help you identify the small parts used in assembly,
we have included a P
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.
ART IDENTIFICATION CHART
How to Orient Parts
As you assemble the weight system, make sure all
parts are oriented exactly as shown in the drawings.
Tightening Parts
Tighten all parts as you assemble them, unless
instructed to do otherwise.
Questions?
If you have questions after reading these assembly
instructions, please call 1-800-4-MY
469-4663).
-HOME
®
(1-800-
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.
Arm Assembly—During this stage you will
assemble the arms and the leg lever.
Cable Assembly—During this stage you will
attach the cables and pulleys that connect the
arms to the weights.
Seat Assembly—During the final stage you will
assemble the seats and the backrests.
5
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
1
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.
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.
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.
69
69
2
25
69
69
3
91
98
82
Attach the Center Base (52) to the Right Base (1)
4.
with two M8 x 78mm Bolts (82), two M8 Washers
(98), and an M8 Nylon Locknut (91). Do not
tighten the Bolts yet.
Attach the Center Base (52) to the Left Base
(25) in the same manner
.
98
25
1
91
4
91
52
25
98
82
98
98
82
98
1
6
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).
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.
Do not tighten the Locknuts yet.
5A B
26
2
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.
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 W
Nylon Locknut (91). Do not tighten the Locknut
yet.
asher (98), and an M8
91
91
1
69
6
83
3
91
91
91
25
91
69
2
91
98
82
1
69
7
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).
not tighten the Locknuts yet.
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.
Do
7
98
91
98
26
82
27
82
8. Orient the Weight Guides (44) with the indicated
holes closer to the bottom.
Guides inside of the Center Base (52) with two
M8 x 78mm Bolts (82), four M8 Washers (98),
and two M8 Nylon Locknuts (91).
Attach the Weight
25
8
44
44
91
91
69
Hole
82
98
52
98
91
Hole
82
98
98
91
8
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 W
Guides.
Press the Weight Tube Bumper (46) into the
Weight Tube (47). Insert the Weight Tube into the
stack of Weights (55).
Weight Tube sits in the groove in the top
Weight.
Grease the indicated holes in the Top Weight (56)
with an included grease pack. Slide the Top
Weight onto the Weight Guides (44).
Make sure the pin on the
eight
9
56
47
Groove
44
Grease
Pin
46
55
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.
1. Attach a Weight Guide (44) to the Right Top
1
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.
10
1
45
82
98
98
5
91
91
44
2
1
5
45
Pin
Holes
44
82
98
Repeat this step with the other W
(44).
eight Guide
98
91
44
44
9
12. Attach the Left Top Frame (36) to the Right Top
Frame (5) with two M8 x 78mm Bolts (82), two
ashers (98), two M8 x 83mm Bolts (112), a
M8 W
Support Plate (31), and four M8 Nylon Locknuts
Do not tighten the Locknuts yet.
(91).
12
31
36
91
5 91
91
112
98
82
98
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).
not tighten the Locknuts yet.
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.
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).
Tighten the M8 Nylon Locknuts (91) used in
steps 3–14.
Do
13
14
85
98
91
98
112
36
31
91
91
82
98
5
91
14
26
98
91
2
Arm Assembly
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.
Grease an M10 x 90mm Bolt (74) and the indicated 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.
Repeat this step with the Right Butterfly Arm
(7).
10
15
Grease
74—Grease
Grease
23
23
6
15
7
14
100
90
16. Attach the Leg Bumper (59) to the Right Seat
Frame (3) with an M4 x 16mm Self-tapping Screw
(89) and an M4 W
asher (96).
16
90
Grease an M10 x 75mm Bolt (60).
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.
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.
Attach the Leg
17
“U”-rod
Grease
4
90
89
96
29
Grease
72
59
3
60
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).
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).
Repeat this step with the other Press Arm
(30).
18
90
100
34
99
101
25
81
32
30
30
101
99
77
11
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