Weider 831.153931 User manual

USER'S MANUAL
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CAUTION
Read all precautions and instruc-
tions in t is manual before using
t is equipment. Save t is manual
for future reference.
Model No. 831.153931
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

2
TABLE OF CONTENTS
IMPO TANT P ECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
BEFO E YOU BEGIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
WEIGHT ESISTANCE CHA T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
T OUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
CABLE DIAG AMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
O DE ING EPLACEMENT PA TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Cover
FULL 90 DAY WA ANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Cover
Note: A PA T IDENTIFICATION CHA T and a PA T LIST/EXPLODED D AWING are attached in the center of
this manual. emove the PA T IDENTIFICATION CHA T and the PA T LIST/EXPLODED D AWING before
beginning assembly.

IMPORTANT PRECAUTIONS
3
1. Read all instructions in t is manual and in
t e accompanying literature before using t e
weig t system.
2. It is t e responsibility of t e owner to ensure
t at all users of t e weig t system are ade-
quately informed of all precautions.
3. T e weig t system is intended for ome use
only. Do not use t e weig t system in any
commercial, rental, or institutional setting.
4. Use t e weig t system only on a level sur-
face. Cover t e floor beneat t e weig t sys-
tem to protect t e floor.
5. Make sure t at all parts are properly tig t-
ened eac time you use t e weig t system.
Replace any worn parts immediately.
6. Keep c ildren under 12 and pets away from
t e weig t system at all times.
7. Keep ands and feet away from moving parts.
8. Always wear at letic s oes for foot protection.
9. T e weig t system is designed to support a
a maximum user weig t of 300 pounds.
10. T e weig t system s ould not be used by
more t an one person at a time.
11. Always stand on t e foot plate w en per-
forming an exercise t at could cause t e
weig t system to tip.
12. Never release t e butterfly arms, leg lever,
squat arm, lat bar, row bar, or andle w ile
weig ts are raised. T e weig ts will fall wit
great force.
13. Always disconnect the lat bar from the
weight system when performing an exercise
that does not use the lat bar.
14. Make sure t at t e cables remain on t e pul-
leys at all times. If t e cables bind w ile you
are exercising, stop immediately and make
sure t at t e cables are on all of t e pulleys.
15. If you feel pain or dizziness at any time w ile
exercising, stop immediately and begin cool-
ing down.
16. T e warning decals s own ere ave been
placed on t e weig t system in t e locations
s own on page 4. If a decal is missing or
illegible, please call our toll-free HELPLINE at
1-800-736-6879, Monday t roug Saturday,
7 a.m. until 7 p.m. Central Time, to order a
free replacement decal. Place t e decal on
t e weig t system in t e location s own.
WARNING: To reduce t e risk of serious injury, read t e following important precautions
before using t e weig t system.
WARNING:Before beginning t is or any exercise program, consult your p ysician. T is
is especially important for persons over t e age of 35 or persons wit pre-existing ealt problems.
Read all instructions before using. SEARS assumes no responsibility for personal injury or property
damage sustained by or t roug t e use of t is product.
Keep hands and
fingers clear of
this area.
Decal 2
Decal 1

4
BEFORE YOU BEGIN
ASSEMBLED
DIMENSIONS:
Height: 81 in.
Width: 96 in.
Length: 57 in.
Squat Knee est
Curl Pad
Low Pulley Station
High Pulley Station
Lat Bar
Swivel Carriage
Adjustment Knob
Butterfly Arm/Press Arm
Leg Lever
Seat
Squat Arm
Weight Stack
Backrest
Backrest
WARNING
DECAL 1
WARNING DECAL 2
(one on eac side)
WARNING
DECAL 2
Thank you for selecting the versatile WEIDE ®P O
4850 weight system. The WEIDE ®P O 4850 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, build
dramatic muscle size and strength, or improve your
cardiovascular system, the P O 4850 weight system
will help you to achieve the specific results you want.
For your benefit, read t is manual carefully before
using t e weig t 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
831.153931. 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.

5
ASSEMBLY
Make sure t at you ave t e 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 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.
How to Identify Parts
To help you identify the small parts used in assembly,
a PA T IDENTIFICATION CHA T is included in the
center of this manual. Lay the chart on the floor and
use it to easily identify parts during each assembly
step. Note: Some small parts may ave been pre-
attac ed. If a part is not in t e parts bag, c eck
to see if it as been pre-attac ed.
How to Orient Parts
As you assemble the weight system, make sure that
all parts are oriented exactly as shown in the draw-
ings.
Tig tening 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 toll-free at 1-800-736-6879, Monday
through Friday, 6 a.m. until 6 p.m. Mountain Time.
Assembly Requires Two Persons
For your convenience and safety, assemble the
weight system with the help of another person.
Set Aside Enoug 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.
Select a Location for t e Weig t 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 t e Box
To make assembly easier, we have divided the
assembly process into four stages. The small hard-
ware needed for each stage is packaged in sepa-
rate bags. Important: Wait until you begin eac
stage to open t e parts bag(s) for t at stage.
Place all parts of the weight system in a cleared
area and remove the packing materials. Do not dis-
pose of the packing materials until assembly is com-
pleted.
Make Assembly Easier
Everything in this manual is designed to
ensure that the weight system can be assem-
bled successfully by anyone.
Before beginning assembly, make sure to
read t e information on t is page. T is
brief introduction will save you muc more
time t an it takes to read it.
T e Four Stages of t e 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
weight stations to the weight stacks.
Seat Assembly—During the final stage, you will
assemble the seat and the backrests.

1.
Locate and open t e parts bags labeled “FRAME
ASSEMBLY 1” and “FRAME ASSEMBLY 2.”
Press a 2” Square Inner Cap (105) into the open
end of the Long Base (120).
Insert eight 5/16” x 2 1/2” Carriage Bolts (110) up
through the Long Base (120) and the Short Base (2)
as shown. Note: It may be elpful to place tape
over t e eads of t e Carriage Bolts to old
t em in place.
Attach the Short Base (2) to the Long Base (120)
with two 5/16” x 2 3/4” Bolts (85), the Long Frame
Plate (71), and two 5/16” Nylon Locknuts (86).
FRAME ASSEMBLY
6
Make sure t at you understand all of t e
information on page 5 before you begin
assembling t e weig t system.
1
85
86
105
120
71
286
2. Attach the Outer Cap (24) to the Short Base (2)
with two #8 x 3/4” Screws (98).
Press two 2” x 3” Inner Caps (58) into the Foot
Plate (53). Attach the Foot Plate to the Long Base
(120) with two 5/16” x 2 1/2” Carriage Bolts (110)
and two 5/16” Nylon Locknuts (86).
3. Attach the tether on the Pin (112) to the Long Base
(120) with a #10 x 1” Screw (14).
Attach the four Knee est Bumpers (123) to the
Squat Knee est (41) with four #10 x 1” Screws
(14). Attach the Squat Knee est to the Long Base
(120) with a 3/8” x 3 1/4” Bolt (96) and a 3/8” Nylon
Locknut (87). Do not overtig ten t e Nylon
Locknut; t e Squat Knee Rest must be able to
pivot.
3
120
112
87
14 96 41
123
123
123
14
14
110
110
110
110
2
2
86
86
58
58
110 53
120
98
24

4. Press a 1 1/2” Square Inner Cap (67) into the
square tube on the Butterfly Upright (3).
Slide the Butterfly Upright (3) onto the two indicated
5/16” x 2 1/2” Carriage Bolts (110) in the Short Base
(2). Finger tighten a 5/16” Nylon Locknut (86) onto
each Carriage Bolt. Do not tig ten t e Nylon
Locknuts yet.
5. Press a 2” x 3” Inner Cap (58) into the top of the
Seat Upright (9). Attach the Leg Lever Bumper (77)
to the Seat Upright with a #10 x 1” Screw (14).
Slide the Seat Upright (9) onto the two indicated
5/16” x 2 1/2” Carriage Bolts (110) in the Short
Base (2). Finger tighten a 5/16” Nylon Locknut (86)
onto each Carriage Bolt. Do not tig ten t e Nylon
Locknuts yet.
7
4
3
86
110
86
2
67
5
2
110
86
86
77
14
58
9
6
9
92
92
90
3
90
90
90
86
86
8
6. Hold the Seat Frame (8) between the Seat Upright
(9) and the Butterfly Upright (3). Attach the Seat
Frame to the Seat Upright with two 5/16” x 3 3/4”
Bolts (92), two 5/16” Washers (90), and two 5/16”
Nylon Locknuts (86). Do not tig ten t e Nylon
Locknuts yet.
Attach the Seat Frame (8) to the Butterfly Upright
(3) with two 5/16” x 3 3/4” Bolts (92), two 5/16”
Washers (90), and two 5/16” Nylon Locknuts (86).
Do not tig ten t e Nylon Locknuts yet.

8
7. Press a 2” x 3” Inner Cap (58) into the top of the
Squat Upright (4). Slide the Squat Upright onto the
two indicated 5/16” x 2 1/2” Carriage Bolts (110) in
the Long Base (120). Finger tighten a 5/16” Nylon
Locknut (86) onto each Carriage Bolt. Do not tig t-
en t e Nylon Locknuts yet.
Press a 2” x 3” Inner Cap (58) into the top of the
Swivel Upright (5). Slide the Swivel Upright onto the
two indicated 5/16” x 2 1/2” Carriage Bolts (110) in
the Long Base (120). Finger tighten a 5/16” Nylon
Locknut (86) onto each Carriage Bolt. Do not tig t-
en t e Nylon Locknuts yet.
7
8
58
58
5
4
120 86
86
110
110
46
66
66
65
5
Adjustment
Hole
8. Press two Swivel Bushings (66) into the Swivel
Carriage (46).
Tighten an Adjustment Handle (65) into the Swivel
Carriage (46). Orient the Swivel Carriage as shown.
Slide the Carriage onto the Swivel Upright (5) and
engage the Adjustment Handle into an adjustment
hole in the Swivel Upright.

9
9. Attach a oller (39) and two 5/16” Washers (90)
between the indicated set of holes in the Squat
Slider (38) with a 5/16” x 3 1/2” Bolt (94), two 5/16”
Washers (90), and a 5/16” Nylon Locknut (86) as
shown.
Assemble t e ot er t ree Rollers (39) to t e
Squat Slider (38) in t e same manner.
10. Slide the Squat Slider (38) down onto the Squat
Upright (4).
11. Insert the ends of two Weight Guides (42) into the
indicated bracket on the Long Base (120). Slide two
Weight Bumpers (49) onto the Weight Guides. Next,
slide ten Weights (44) onto the Weight Guides. Make
sure t at t e Weig ts are turned so t e grooved
sides of t e Weig ts are facing downward.
Press a Weight Tube Bumper (48) into the lower
end of a Weight Tube (43). Insert the Weight Tube
into the centers of the Weights (44). Make sure
t at t e Weig t Tube is turned as s own.
Lubricate the two outer holes in a Top Weight (45).
Slide the Top Weight onto the Weight Guides (42).
Make sure t at t e Top Weig t is turned so t e
grooved side is facing downward.
Apply a number “10” decal to the Top Weight (45) in
the location shown. Apply decals with the numbers
20 through 110 to the ten Weights (44).
Assemble t e ot er weig t stack in t e same
way.
9
10
49
120
Groove
Lubricate
43
48
42
45
44
“10” Decal
“110” Decal
11 42
38
4
39
39
39
90
90
90
94
86
90
38
“20” Decal

10
14. Open t e parts bag labeled “ARM ASSEMBLY.”
Press three 1 1/2” x 2” Inner Caps (21) into the Leg
Lever (10). Attach the Eyebolt (116) to the Leg
Lever with a 3/8” Washer (91) and a 3/8” Nylon
Jamnut (113).
Lubricate a 3/8” x 2 1/2” Bolt (18) with grease. Turn
the Leg Lever (10) so that the welded tab is on the
indicated side, and attach the Leg Lever to the Seat
Upright (9) with the Bolt and a 3/8” Nylon Locknut
(87). Do not overtig ten t e Nylon Locknut; t e
Leg Lever must be able to pivot easily.
15. Press a 2” x 2 1/2” Inner Cap (125) into the
Butterfly Frame (47). Attach the tethers on the two
“L”-pins w/Tether (60) to the Butterfly Frame with a
#8 x 3/4” Screw (98).
Lubricate a 3/8” x 3” Bolt (107) with grease. Attach
the Butterfly Frame (47) to the Butterfly Top Frame
(7) with the Bolt and a 3/8” Nylon Locknut (87). Do
not overtig ten t e Nylon Locknut; t e Butterfly
Frame must be able to pivot easily.
ARM ASSEMBLY
13. Press two 2” x 3” Inner Caps (58) into the Top Frame
(6) and the Butterfly Top Frame (7).
Attach the Butterfly Top Frame (7) to the Top Frame
(6) with two 5/16” x 2 3/4” Bolts (85), two 5/16”
Washers (90), and two 5/16” Nylon Locknuts (86).
Do not tig ten t e Locknuts yet.
Attach the Butterfly Top Frame (7) to the Butterfly
Upright (3) with two 5/16” x 3 3/4” Bolts (92), two
5/16” Washers (90), and two 5/16” Nylon Locknuts
(86).
Tig ten all of t e 5/16” Nylon Locknuts (86) and
3/8” Nylon Locknuts (87) used in steps 2–13.
12
13
14
21
21
116 91
113
21
10
87
18
Lubricate
9
Tab
15
125
87 107—Lubricate
47
60
98
7
60
6
86
86
4
5
95
95
87
42
87
52
92
52
92
786
85
90
90
6
86
3
58
92
90
58
12. Attach the Top Frame (6) between the Squat Upright
(4) and the Swivel Upright (5) with four 5/16” x 3 3/4”
Bolts (92), the two Short Frame Plates (52), and two
5/16” Nylon Locknuts (86) as shown. Do not tig ten
t e Bolts and Locknuts yet.
Attach the four Weight Guides (42) to the Top Frame
(6) with two 3/8” x 6 1/2” Bolts (95) and two 3/8”
Nylon Locknuts (87).