Weider 831.15403.2 User Manual
Model No. 831.15403.2
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.
Sears, Roebuck and Co., Hoffman Estates, IL 60179
TABLE OF CONTENTS
WARNING DECAL PLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
IMPORTANT PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
BEFORE YOU BEGIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
WEIGHT RESISTANCE CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
CABLE DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
EXERCISE GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
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 PART IDENTIFICATION CHART and PART LIST/EXPLODED DRAWING before beginning assembly.
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 and all
warnings on the weight system 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. Keep the weight system indoors, away from
moisture and dust. Place the weight system
on a level surface, with a mat beneath it to
protect the floor or carpet. Make sure that
there is enough clearance around the weight
system to mount, dismount, and use the
weight system.
5. Inspect and properly tighten all parts regularly. Replace any worn parts immediately.
6. Keep children under 12 and pets away from
the weight system at all times.
7. Always wear athletic shoes for foot protection while exercising.
9. Keep hands and feet away from moving parts.
10. The weight system is designed to be used
only with the included weight. Do not use the
weight system with dumbbells or any other
type of weight to increase the resistance.
11. 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.
12. 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 25).
13. Always stand on the foot plate when performing an exercise that could cause the
weight system to tip.
14. 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
15.
weight system when performing an exercise
that does not use the lat bar.
8. The weight system is designed to support a
maximum user weight of 300 pounds.
16. 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
4900 weight system. The weight system offers an
impressive array of weight stations designed to devel-
p every major muscle group of the body. Whether
o
your goal is to tone your body, build dramatic muscle
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
Pull-up Arm
Right Side
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
alling. The model number is 831.15403.2. The serial
c
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.
ASSEMBLED DIMENSIONS:
Height: 82 in. / 208 cm
Width: 105 in. / 267 cm
Depth: 94 in. / 239 cm
®
High Pulley Station
Dip Assist
Ab Pulley Station
Butterfly Arm
Backrest
Seat
Leg Lever
Low Pulley
Station
Foot Plate
Note: The terms “right side” and “left side” are determined relative to a person sitting on the
seat; they do not correspond to right and left on the drawings in this manual.
eight
W
Stack
Left Side
Backrest
Press Arm
Seat
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. 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.
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 the assembly
instructions, please call our Customer Service
Department at 1-800-4-MY-HOME
(1-800-469-4663).
®
The Four Stages of the
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.
Assembly Process
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 72mm Carriage Bolts (84) up
through the Right Base (1).
helpful to place a piece of tape over the bolt
heads to hold them in place.
2. Insert four M8 x 72mm Carriage Bolts (84) up
through the Left Base (2). Note: It may be help-
ful to place a piece of tape over the bolt heads
to hold them in place.
3. Insert two M8 x 72mm Carriage Bolts (84) up
through the Rear Base (3). Note: It may be help-
ful to place a piece of tape over the bolt heads
to hold them in place.
Note: It may be
84
84
2
2
84
84
3
3
Attach the Rear Base (3) and the Left Base (2) to
4.
the Right Base (1) with two M8 x 80mm Bolts (89)
and two M8 Nylon Locknuts (1
en the Locknuts yet.
15).
Do not tight
84
4
-
3
89
1
89
115
115
2
6
5. Attach the Rear Upright (6) to the Rear Base (3)
with the two indicated M8 x 72mm Carriage Bolts
84) and two M8 Nylon Locknuts (115). D
(
tighten the Locknuts yet.
o not
5
6
115
3
115
6. Attach the Right Upright (4) to the Right Base (1)
with the two indicated M8 x 72mm Carriage Bolts
(84) and two M8 Nylon Locknuts (115). Do not
tighten the Locknuts yet.
84
6
4
15
1
1
84
7
7. Attach the Left Upright (5) to the Left Base (2)
with the two indicated M8 x 72mm Carriage Bolts
84) and two M8 Nylon Locknuts (115). D
(
tighten the Locknuts yet.
o not
7
5
115
115
8. Hold the Left Top Frame (8) between the Left
Upright (5) and the Rear Upright (6). Attach the
Pull-up Arm (19) and the Left Top Frame to the
Rear Upright with two M8 x 80mm Bolts (89), two
M8 Washers (117), and two M8 Nylon Locknuts
(115). Make sure the indicated handles point
up. Do not tighten the Locknuts yet.
Attach the Left Top Frame (8) to the Left Upright
9.
(5) with two M8 x 80mm Bolts (89), the Left
Upright Plate (37), and two M8 Nylon Locknuts
(115). Note: The Left Upright Plate is wider
than the Rear Plate (not shown). Do not tighten the Locknuts yet.
8
Handles
9
19
89
84
117
2
115
8
115
6
5
8
115
37
15
1
89
5
8
10. See the inset drawing. Identify the Front Weight
Guides (136), which have the lock holes closer to
he center than the Rear Weight Guides (24).
t
Orient the Weight Guides with the holes closer to
he bottom.
t
Attach the Front Weight Guides (136) to the Right
Base (1) with an M10 x 155mm Bolt (130), two
M10 Washers (116), and an M10 Nylon Locknut
(114).
10
136
24
136
Slide two Weight Bumpers (65) onto the Front
Weight Guides (136). Slide the ten Weights (35),
with the pin holes on the indicated side, onto the
Weight Guides.
Press a Weight Tube Bumper (66) into the Long
Weight Tube (36). Insert the Weight Tube into the
stack of Weights (35).
Weight Tube sits in the groove on the top
Weight
Grease the indicated holes in a Top Weight (34)
with an included grease pack. Slide the Top
Weight onto the Front Weight Guides (136).
Repeat this step with the Rear Weight Guides
(24) and eight Weights (35).
.
Make sure the pin on the
Lock
Holes
24
35
34
Pin
Holes
Grease
Pin
36
66
Groove
35
65
11. Attach the Right Top Frame (7) to the Right
Upright (4) with two M8 x 77mm Bolts (94), two
ashers (1
M8 W
(115).
Do not tighten the Locknuts yet.
Attach the Right Top Frame (7) to the Left Top
Frame (8) with two M8 x 77mm Bolts (94), two
ashers (1
M8 W
(115).
Do not tighten the Locknuts yet.
17), and two M8 Nylon Locknuts
17), and two M8 Nylon Locknuts
116
1
114
15
94
117
11
1
17
7
94
4
115
130
116
15
1
1
117
8
9
12. Attach the Front Weight Guides (136) to the Right
Top Frame (7) with two M10 x 38mm Screws (82)
nd two M10 Washers (116).
a
epeat this step with the Rear Weight Guides
R
(24).
12
24
82
116
7
116
136
82
13. Orient the Butterfly Frame (22) as shown. Attach
the Butterfly Frame to the Right Upright (4) with
two M8 x 70mm Bolts (91), two M8 Washers
(117), and two M8 Nylon Locknuts (115).
tighten the Locknuts yet.
Attach the Butterfly Frame (22) to the Right Top
Frame (7) with two M8 x 77mm Bolts (94), two
M8 Washers (117), and two M8 Nylon Locknuts
Do not tighten the Locknuts yet.
(115).
14. Attach the Left Seat Frame (10) to the Left Base
(2) with the two indicated M8 x 72mm Carriage
Bolts (84) and two M8 Nylon Locknuts (115). Do
not tighten the Locknuts yet.
Attach the Left Seat Frame (10) to the Left
Upright (5) with two M8 x 77mm Bolts (94), two
M8 Washers (117), and two M8 Nylon Locknuts
(115). Do not tighten the Locknuts yet.
Do not
13
91
14
94
117
117
117
117
115
7
22
117
115
115
5
94
115
4
115
10
Attach the Right Seat Frame (9) to the Right
Base (1) and the Right Upright (4) in the same
manner.
Attach the Dip Arm (20) to the Rear Upright (6)
15.
with two M8 x 80mm Bolts (89), two M8 W
(117), the Rear Upright Plate (38), and two M8
Nylon Locknuts (115).
handle is horizontal.
Tighten the M8 Nylon Locknuts (115) used in
steps 4–15.
Make sure the indicated
ashers
10
15
Handle
89
20
117
15
1
115
2
84
6
38
115
Arm Assembly
16
Tube
16. Grease an M10 x 107mm Bolt (99). Orient the
Press Frame (13) so that the welded tube is on
the side toward the Left Upright (5). Attach the
Press Frame to the Left Base (2) with the Bolt
nd an M10 Nylon Locknut (114). D
a
tighten the Locknut; the Press Frame must be
able to pivot easily.
17. Remove the M10 x 45mm Button Bolt (105) from
a Press Arm (14).
Attach a Press Handle (16) to a Press Arm (14)
with an M10 x 65mm Bolt (96), two M10 Washers
(116), two M10 x 12mm Spacers (75), and an
M10 Nylon Locknut (114).
Attach a Press Arm Cap (56) to the Press Arm
(14) with an M10 x 45mm Button Bolt (105) and
an M10 Large Washer (134).
Attach the Press Arm (14) to the Press Frame
(13) with two M8 x 67mm Bolts (97) and two M8
Nylon Locknuts (115).
Repeat this step with the other Press Arm
(14).
o not over-
17
14
16
13
14
9
9
134
114
105
56
116
75
75
96
116
5
114
2
97
Grease an M10 x 107mm Bolt (99). Attach the
18.
Leg Press Frame (12) to the Left Base (2) with
the Bolt and an M10 Nylon Locknut (114). Do not
overtighten the Locknut; the Leg Press Frame
must be able to pivot easily.
Grease an M10 x 75mm Bolt (133). Attach the
Foot Plate (23) to the Leg Press Frame (12) with
the Bolt and an M10 Nylon Locknut (1
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
14).
.
Make
18
115
13
Grease
14
1
133
12
23
14
1
99
2
Grease
11
19. Attach the Leg Bumper (76) to the Right Seat
Frame (9) with an M4 x 16mm Self-tapping Screw
113) and an M4 Washer (131).
(
rease an M10 x 72mm Bolt (104). Attach the
G
Leg Lever (11) to the Right Seat Frame (9) with
the Bolt and an M10 Nylon Locknut (114). Make
sure the “U”-rod is on the indicated side of
the Leg Lever. Do not over tighten the
Locknut; the Leg Lever must be able to pivot
easily.
19
“U”-rod
11
114
131
113
Grease
104
76
9
20. Hold the Dip Assist (21) around the Rear Upright
(6) and Left Upright (5) as shown.
Dip Assist is under the indicated rod.
Attach the Cross Brace (64) to the Dip Assist (21)
with an M10 x 229mm Bolt (108), two M10
Washers (116), and an M10 Nylon Locknut (114).
Grease an M10 x 229mm bolt (108). Attach the
Dip Assist (21) to the Left Upright (5) with the Bolt
and an M10 Nylon Locknut (114).
tighten the Locknut; the Dip Assist must be
able to pivot easily.
Attach the Dip Assist Latch (67) to the Dip Assist
(21) with an M10 x 83mm Bolt (107), two M10
Washers (116), a 12mm Spacer (75), and an M10
Nylon Locknut (114).
Locknut; the Dip Assist Latch must be able to
pivot easily. Engage the Latch over the rod on
the Rear Upright (6).
21. Wet the lower end of the Left Butterfly Arm (18)
with soapy water
onto the Butterfly Arm.
Note: an entire grease packet should be used
for this step.
and the indicated edges of a Top and Bottom Arm
Bushing (59, 93). Attach the Left Butterfly
(18) to the Butterfly Frame (22) with the Bolt, an
M10 Large Washer (134), the two Arm Bushings,
and an M10 Nylon Locknut (114). Make sure the
bolt head fits inside the hole in the Butterfly
Frame.
Grease an M10 x 86mm Bolt (92)
Do not overtighten the
. Slide a Large Foam Pad (79)
Make sure the
Do not over-
Arm
20
21
21
107
17
116
Rod
22
6
134
1
14
67
108
75
116
92
93
Grease
14
1
116
116
108
Grease
59
64
5
114
114
Grease
18
Repeat this step with the Right Butterfly
(17).
Arm
79
12
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