Weider Home Gym 831150680 User Manual

Model No. 831.150680  
Serial No.  
Write the serial number in the  
space above for future reference.  
USER’S MANUAL  
Serial Number Decal (Under Seat)  
Patent Pending  
SEARS, ROEBUCK AND CO.,  
HOFFMAN ESTATES, IL 60179  
CAUTION  
Visit our website at  
Read all precautions and instruc-  
tions in this manual before using  
this equipment. Save this manual  
for future reference.  
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IMPORTANT PRECAUTIONS  
WARNING:  
To reduce the risk of serious injury, read the following important precau-  
tions before using the weight bench.  
1. Read all instructions in this manual before  
using the weight bench. Use the weight  
bench only as described in this manual.  
10. Always exercise with a partner. Your partner  
should be ready to catch the barbell if you  
cannot complete a repetition.  
11. The weight bench is designed to support a  
maximum user weight of 250 pounds. Do not  
place more than 310 pounds, including a bar-  
bell and weights, on the weight rests. Do not  
place more than 150 pounds on the leg lever.  
2. It is the responsibility of the owner to ensure  
that all users of the weight bench are ade-  
quately informed of all precautions.  
3. The weight bench is intended for home use  
only. Do not use the weight bench in any  
commercial, rental, or institutional setting.  
12. When you are using the leg lever, place a  
barbell with the same amount of weight on  
the weight rests to balance the bench.  
4. Use the weight bench only on a level surface.  
Cover the floor beneath the weight bench to  
protect the floor.  
13. When you put weight on the weight rests,  
make sure you put at least ten pounds on the  
leg lever to balance the weight bench.  
5. Make sure all parts are properly tightened  
each time you use the weight bench. Replace  
any worn parts immediately.  
14. Make sure that the adjustment knobs are  
inserted completely and tightened into the  
uprights before beginning any exercise.  
6. Keep children under the age of 12 and pets  
away from the weight bench at all times.  
15. When adjusting the position of the seat,  
make sure that the adjustment pin is inserted  
through both adjustment tubes before begin-  
ning any exercise.  
7. Always wear athletic shoes for foot protec-  
tion while exercising.  
8. Keep hands and feet away from moving parts.  
16. Always remove the curl post from the front  
leg before performing leg exercises with the  
leg lever.  
9. Always be sure there is an equal amount of  
weight on each side of your barbell when  
you are using it. When adding or removing  
weights, always keep some weight on both  
ends of the barbell and prevent the barbell  
from tipping. Note: The weight bench does  
not include a barbell or weights.  
17. If you feel pain or dizziness at any time while  
exercising, stop immediately and begin cool-  
ing 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 WEIDER® PRO 875 weight HELPLINE at 1-800-736-6879, Monday through  
bench. The versatile WEIDER® PRO 875 is designed  
to be used with your own weight set (not included) to  
develop every major muscle group of the body.  
Whether your goal is a shapely figure, dramatic mus-  
cle size and strength, or a healthier cardiovascular  
system, the WEIDER® PRO 875 will help you to  
achieve the specific results you want.  
Saturday, 7 a.m. until 7 p.m. Central Time (excluding  
holidays). To help us assist you, please note the prod-  
uct model number and serial number before calling.  
The model number is 831.150680. The serial number  
can be found on a decal attached to the weight bench  
(see the front cover of this manual).  
Before reading further, please look at the drawing  
below and familiarize yourself with the parts that are  
labeled.  
For your benefit, read this manual carefully before  
using the WEIDER® PRO 875 weight bench. If you  
have additional questions, please call our toll-free  
Weight Rests  
Upright  
Upright  
Knob  
Curl Pad  
Backrest  
Storage  
Tube  
Leg Lever  
Weight  
Tube  
Adjustment  
Tubes  
Seat  
4
 
PART IDENTIFICATION CHART  
This chart is provided to help you identify the small parts used in assembly. The number in parenthesis below  
each part refers to the part number of the part, from the PART LIST on page 14 of this manual. Important:  
Some parts may have been pre-assembled for shipping purposes. If you cannot find a part in the parts  
bags, check to see if it has been pre-assembled.  
M10 x 81mm Bolt (35)  
M10 Washer (41)  
M10 x 72mm Bolt (45)  
M8 Washer (43)  
M6 Washer (40)  
M10 x 65mm Bolt (47)  
M8 x 58mm Bolt (42)  
M
17  
                                                                        B
M6 x 38mm Screw (39)  
M10 Nylon Locknut (36)  
M8 Nylon Locknut (44)  
M6 x 16mm Screw (37)  
M4 x 16mm Screw (38)  
5
 
ASSEMBLY  
Place all parts in a cleared area and remove the  
packing materials. Do not dispose of the packing  
materials until assembly is completed.  
Make Things Easier for Yourself  
This manual is designed to ensure that the  
weight bench can be assembled successfully  
by anyone. Most people find that by setting  
aside plenty of time, assembly will go smoothly.  
The following tools (not included) are required  
for assembly:  
• Two adjustable wrenches  
• One rubber mallet  
Before beginning assembly, carefully read the  
following information and instructions:  
• One standard screwdriver  
Assembly requires two people.  
• One Phillips screwdriver  
For help identifying small parts, use the PART  
IDENTIFICATION CHART on page 5.  
• Lubricant, such as grease or petroleum jelly,  
and soapy water.  
Tighten all parts as you assemble them, unless  
instructed to do otherwise.  
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.  
As you assemble the weight bench, make sure all  
parts are oriented as shown in the drawings.  
1. Press two 30mm x 60mm Inner Caps (21) into the  
base on the Left Upright (4).  
1
Align one of the adjustment holes in the left Weight  
Rest (6) with the hole in the Left Upright (4).  
Tighten an Upright Knob (18) into the holes.  
6
Orient the Crossbar (3) and the Left Upright (4) so  
the decals are in the positions shown. Attach the  
Crossbar to the Left Upright with four M10 x 81mm  
Bolts (35), two Joint Plates (14), and four M10  
Nylon Locknuts (36). Do not tighten the Nylon  
Locknuts yet.  
4
3
Warning  
Decal  
18  
36  
14  
14  
Name  
Decal  
Repeat this step with the Right Upright (not shown).  
21  
36  
35  
WARNING:  
Always insert the  
Upright Knobs (18) through a set of adjust-  
ment holes in the Weight Rests (6). Do not  
insert the Upright Knobs through the slots in  
the Uprights (4, 5).  
21  
6
 
2. Press three 45mm Square Inner Caps (22) into the  
Front Leg (1).  
2
22  
36  
Attach the Front Leg (1) to the Frame (2) with two  
M10 x 65mm Bolts (47), a Support Plate (16), and  
two M10 Nylon Locknuts (36). Do not tighten the  
Nylon Locknuts yet.  
2
47  
36  
1
16  
22  
22  
3. Attach the Frame (2) to the Crossbar (3) with two  
M10 x 81mm Bolts (35) and two M10 Nylon  
Locknuts (36). Do not tighten the Nylon  
Locknuts yet.  
3
3
35  
36  
36  
2
4. Press four 1” Square Inner Caps (23) into the  
ends of the Right and Left Backrest Frames (7,  
8). Press two 1” x 2” Inner Caps (24) into the  
adjustment tubes on the Backrest Frames.  
4
10  
23  
Orient the Backrest (10) as shown. Attach the  
Backrest to the Right and Left Backrest Frames  
(7, 8) with four M6 x 38mm Screws (39) and four  
M6 Washers (40). Do not tighten the Screws  
yet.  
8
40  
7
39  
23  
40  
40  
39  
39  
24  
7
 
5. Lubricate the M10 x 178m Bolt (46). Attach the  
Right and Left Backrest Frames (7, 8) to the  
Frame (2) with the Bolt, two M10 Washers (41),  
and an M10 Nylon Locknut (36).  
5
Lubricate  
Align an adjustment hole in the Right and Left  
Backrest Frames (7, 8) with the indicated hole in  
the Frame (2). Insert the Backrest Pin (26)  
through the Frame and the Backrest Frames, and  
secure it with the Spring Clip (25).  
46  
41  
8
7
41  
36  
Tighten all of the M10 Nylon Locknuts (36)  
used in steps 1–3. Tighten the four M6 x  
38mm Screws (39) used in step 4.  
26  
2
25  
6. Press three 45mm Square Inner Caps (22) into the  
Leg Lever (9). Press a 1” Round Inner Cap (27)  
into the indicated end of the Weight Tube (15).  
6
36  
22  
9
Attach the Weight Tube (15) to the Leg Lever (9)  
with the M8 x 58mm Bolt (42), two M8 Washers  
(43), the Spacer (30), and an M8 Nylon Locknut  
(44). Press the 1” Angled Cap (28) onto the back  
of the Weight Tube.  
28  
30  
45  
22  
42  
Lubricate  
43  
43  
15  
Lubricate an M10 x 72mm Bolt (45). Attach the  
Leg Lever (9) to the Front Leg (1) with the Bolt  
and an M10 Nylon Locknut (36). Do not over-  
tighten the Nylon Locknut; the Leg Lever  
must be able to pivot easily.  
1
44  
22  
27  
7. Orient the Seat (11) with the wide end on the side  
shown. Attach the Seat to the Frame (2) with four  
M6 x 16mm Screws (37).  
7
11  
Wide End  
2
37  
37  
8
 
8. Press two 3/4” Round Inner Caps (29) into each  
Pad Tube (19).  
8
20  
1
Slide two Pad Tubes (19) through the Leg Lever  
(9). Slide the third Pad Tube through the holes in  
the Front Leg (1).  
9
29  
Slide two Foam Pads (20) onto the ends of each  
Pad Tube (19).  
29  
19  
29  
19  
20  
20  
9. Attach the Curl Pad (13) to the Curl Post (12) with  
two M6 x 16mm Screws (37).  
9
13  
37  
37  
10. Make sure that all parts are properly tightened  
before you use the weight bench. The use of  
all remaining parts will be explained in ADJUST-  
MENTS, beginning on page 10.  
12  
9
 
ADJUSTMENTS  
The weight bench is designed to be used with your own weight set (not included). The steps below explain how  
the weight bench can be adjusted. See EXERCISE GUIDELINES on page 12 for important exercise information  
and refer to the accompanying exercise guide to see the correct form for several exercises. Refer also to the  
exercise information accompanying your weight set for additional exercises.  
Make sure all parts are properly tightened each time you use the weight bench. Replace any worn parts immediate-  
ly. The weight bench can be cleaned with a damp cloth and a mild, non-abrasive detergent. Do not use solvents.  
ATTACHING WEIGHTS TO THE LEG LEVER  
To use the Leg Lever (9), slide the desired weights  
(not included) onto the Weight Tube (15).  
9
To use Olympic weights, press a Weight Adapter  
Bushing (34) into each end of the Weight Adapter  
(33). Slide the Weight Adapter onto the Weight Tube  
(15) and secure it with the Weight Pin (48).  
48  
33  
15  
34  
WARNING:  
Do not place more  
than 150 pounds on the Leg Lever (9).  
34  
ATTACHING THE CURL PAD  
For some exercises, the Curl Pad (13) must be  
attached to the weight bench.  
13  
Slide the Curl Post (12) into the Front Leg (1). Align  
one of the adjustment holes in the Curl Post with the  
adjustment hole in the Front Leg. Tighten the Curl  
Post Knob (17) into the adjustment hole in the Front  
Leg. Make sure that you fully tighten the Curl Post  
Knob.  
12  
22  
17  
Note: When the Curl Pad (13) is not in use, the  
45mm Square Inner Cap (22) should be inserted  
into the Front Leg (1).  
1
STORING THE CURL PAD  
When the Curl Pad (13) is not in use, it can be stored  
in the storage tube on the Left Upright (4).  
13  
Storage Tube  
4
10  
 
ADJUSTING THE UPRIGHTS  
The Weight Rests (6) can be adjusted to six heights  
to accommodate different exercises. To adjust the  
height, remove the Upright Knobs (18) from both  
Weight Rests and Uprights (4, 5 [not shown]). Slide  
the Weight Rests to the desired position and re-insert  
the Upright Knobs.  
6
WARNING:  
Always set both  
Weight Rests (6) at the same height. Make  
sure that the Upright Knobs (18) are inserted  
completely and tightened into the Uprights (4,  
5) before you begin any exercise.  
4
18  
ADJUSTING THE BACKREST  
The Backrest (10) can be used in either a decline  
position, a level position, or two incline positions. To  
adjust the Backrest to the decline position, remove  
the Backrest Pin (26) and lower the Backrest until it  
rests directly on the Crossbar (3). Re-insert the  
Backrest Pin into the adjustment tubes.  
10  
3
26  
To adjust the Backrest (10) to the level position, insert  
the Backrest Pin (26) through the top set of holes in  
the adjustment tubes and the Frame (2). Secure the  
Backrest Pin with the Spring Clip (25).  
2
25  
To adjust the Backrest (10) to an incline position,  
insert the Backrest Pin (26) through one of the lower  
two sets of holes in the adjustment tubes and the  
Frame (2). Secure the Backrest Pin with the Spring  
Clip (25).  
Adjustment Tubes  
WARNING:  
When adjusting the  
position of the Backrest (10), make sure that  
the Backrest Pin (26) is inserted through both  
adjustment tubes and the Frame (2).  
11  
 
EXERCISE GUIDELINES  
THE FOUR BASIC TYPES OF WORKOUTS  
PERSONALIZING YOUR EXERCISE PROGRAM  
Muscle Building  
Determining the exact length of time for each workout,  
as well as the number of repetitions or sets complet-  
ed, is an individual matter. It is important to avoid  
overdoing it during the first few months of your exer-  
cise program. You should progress at your own pace  
and be sensitive to your body’s signals. If you experi-  
ence pain or dizziness at any time while exercising,  
stop immediately and begin cooling down. Find out  
what is wrong before continuing. Remember that ade-  
quate rest and a proper diet are important factors in  
any exercise program.  
To increase the size and strength of your muscles,  
push them close to their maximum capacity. Your  
muscles will continually adapt and grow as you pro-  
gressively increase the intensity of your exercise. You  
can adjust the intensity level of an individual exercise  
in two ways:  
• by changing the amount of weight used  
• by changing the number of repetitions or sets per-  
formed. (A “repetition” is one complete cycle of an  
exercise, such as one sit-up. A “set” is a series of  
repetitions.)  
WARMING UP  
The proper amount of weight for each exercise  
depends upon the individual user. You must gauge  
your limits and select the amount of weight that is  
right for you. Begin with 3 sets of 8 repetitions for  
each exercise you perform. Rest for 3 minutes after  
each set. When you can complete 3 sets of 12 repeti-  
tions without difficulty, increase the amount of weight.  
Begin each workout with 5 to 10 minutes of stretching  
and light exercise to warm up. Warming up prepares  
your body for more strenuous exercise by increasing  
circulation, raising your body temperature and deliver-  
ing more oxygen to your muscles.  
WORKING OUT  
Toning  
You can tone your muscles by pushing them to a  
moderate percentage of their capacity. Select a mod-  
erate amount of weight and increase the number of  
repetitions in each set. Complete as many sets of 15  
to 20 repetitions as possible without discomfort. Rest  
for 1 minute after each set. Work your muscles by  
completing more sets rather than by using high  
amounts of weight.  
Each workout should include 6 to 10 different exercis-  
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.  
Schedule your workouts for the time of day when your  
energy level is the highest. Each workout should be  
followed by at least one day of rest. Once you find the  
schedule that is right for you, stick with it.  
Weight Loss  
To lose weight, use a low amount of weight and  
increase the number of repetitions in each set.  
Exercise for 20 to 30 minutes, resting for a maximum  
of 30 seconds between sets.  
EXERCISE FORM  
Maintaining proper form is an essential part of an  
effective exercise program. This requires moving  
through the full range of motion for each exercise,  
and moving only the appropriate parts of the body.  
Exercising in an uncontrolled manner will leave you  
feeling exhausted. On the exercise guide accompany-  
ing this manual you will find photographs showing the  
correct form for several exercises, and a list of the  
muscles affected. Refer to the muscle chart on page  
13 to find the names of the muscles.  
Cross Training  
Cross training is an efficient way to get a complete  
and well-balanced fitness program. An example of a  
balanced program is:  
• Plan weight training workouts on Monday,  
Wednesday, and Friday.  
• Plan 20 to 30 minutes of aerobic exercise, such as  
cycling or swimming, on Tuesday and Thursday.  
• Rest from both weight training and aerobic exercise  
for at least one full day each week to give your body  
time to regenerate.  
The repetitions in each set should be performed  
smoothly and without pausing. The exertion stage of  
each repetition should last about half as long as the  
return stage. Proper breathing is important. Exhale  
during the exertion stage of each repetition and inhale  
during the return stroke. Never hold your breath.  
The combination of weight training and aerobic exer-  
cise will reshape and strengthen your body, and  
develop your heart and lungs.  
12  
 
Rest for a short period of time after each set. The ideal slowly as you stretch and do not bounce. Ease into  
resting periods are:  
• Rest for three minutes after each set for a muscle  
building workout.  
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. List the  
date, the exercises performed, the weight used, and  
the numbers of sets and repetitions completed. Record  
your weight and key body measurements at the end of  
every month. Remember, the key to achieving the  
greatest results is to make exercise a regular and  
enjoyable part of your everyday life.  
COOLING DOWN  
End each workout with 5 to 10 minutes of stretching.  
Include stretches for both your arms and legs. Move  
MUSCLE CHART  
N
A. Sternomastoid (neck)  
B. Pectoralis Major (chest)  
C. Biceps (front of arm)  
D. Obliques (waist)  
A
O
P
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)  
C
Q
D
R
E
S
F
L
T
L. Rectus Abdominus (stomach)  
M. Adductor (inner thigh)  
N. Trapezius (upper back)  
O. Rhomboideus (upper back)  
P. Deltoid (shoulder)  
G
M
H
U
I
V
Q. Triceps (back of arm)  
W
J
R. Latissimus Dorsi (mid back)  
S. Spinae Erectors (lower back)  
T. Gluteus Medius (hip)  
K
U. Gluteus Maximus (buttocks)  
V. Hamstring (back of leg)  
W. Gastrocnemius (back of calf)  
13  
 
PART LIST—Model No. 831.150680  
R1101A  
Key No. Qty.  
Description  
Key No. Qty.  
Description  
1
2
3
4
5
6
7
8
1
1
1
1
1
2
1
1
1
1
1
1
1
4
1
1
1
2
3
6
4
6
4
2
1
Front Leg  
Frame  
Crossbar  
Left Upright  
Right Upright  
Weight Rest  
Right Backrest Frame  
Left Backrest Frame  
Leg Lever  
Backrest  
Seat  
Curl Post  
Curl Pad  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
#
1
1
1
6
1
2
2
1
2
10  
14  
6
4
4
4
2
1
2
1
1
1
2
1
1
1
Backrest Pin  
1” Round Inner Cap  
1” Angled Cap  
3/4” Round Inner Cap  
Spacer  
50mm Square Bushing  
60mm Square Bushing  
Weight Adapter  
Weight Adapter Bushing  
M10 x 81mm Bolt  
M10 Nylon Locknut  
M6 x 16mm Screw  
M4 x 16mm Screw  
M6 x 38mm Screw  
M6 Washer  
M10 Washer  
M8 x 58mm Bolt  
M8 Washer  
M8 Nylon Locknut  
M10 x 72mm Bolt  
M10 x 178mm Bolt  
M10 x 65mm Bolt  
Weight Pin  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
Joint Plate  
Weight Tube  
Support Plate  
Curl Post Knob  
Upright Knob  
Pad Tube  
Foam Pad  
30mm x 60mm Inner Cap  
45mm Square Inner Cap  
1” Square Inner Cap  
1” x 2” Inner Cap  
Spring Clip  
User’s Manual  
Exercise Guide  
#
“#” Indicates a non-illustrated part. Specifications are subject to change without notice. See the back cover of  
this manual for information on ordering replacement parts.  
14  
 
EXPLODED DRAWING—Model No. 831.150680  
R1101A  
23  
6
40  
10  
13  
7
8
39  
6
37  
12  
37  
23  
40  
39  
32  
36  
32  
38  
18  
38  
40  
14  
31  
38  
39  
35  
24  
31  
38  
14  
36  
36  
18  
3
35  
4
5
36  
21  
21  
35  
36  
11  
14  
26  
46  
35  
36  
35  
41  
36  
21  
22  
17  
20  
36  
36  
2
21  
25  
19  
29  
36  
16  
29  
9
22  
28  
47  
20  
45  
22  
37  
36  
1
29  
30  
42  
43  
19  
20  
48  
43  
29  
44  
20  
22  
33  
15  
29  
22  
27  
29  
22  
19  
34  
20  
20  
15  
 
ORDERING REPLACEMENT PARTS  
The model number and serial number of your WEIDER® PRO  
Model No. 831.150680  
875 are listed on a decal attached to the frame. See the front  
cover of this manual to find the location of the decal.  
QUESTIONS?  
All replacement parts are available for immediate purchase or  
special order when you visit your nearest SEARS Service  
Center. To request service or to order parts by telephone, call  
the toll-free numbers listed at the left.  
If you find that:  
• you need help assembling or  
operating the WEIDER® PRO 875  
When requesting help or service, or ordering parts, please be  
prepared to provide the following information:  
• a part is missing  
• or you need to schedule repair  
service  
• The MODEL NUMBER of the product (831.150680)  
• The NAME of the product (WEIDER® PRO 875 weight bench)  
call our toll-free HELPLINE  
• The PART NUMBER and DESCRIPTION of the PART (see the  
PART LIST and the EXPLODED DRAWING on pages 14 and  
15 of this manual)  
1-800-736-6879  
Monday–Saturday, 7 am–7 pm  
Central Time (excluding holidays)  
REPLACEMENT  
PARTS  
If parts become worn and need to  
be replaced, call the following toll-  
free number  
1-800-FON-PART  
(1-800-366-7278)  
SEARS, ROEBUCK AND CO., HOFFMAN ESTATES, IL 60179  
FULL 90 DAY WARRANTY  
For 90 days from the date of purchase, if failure occurs due to defect in material or workmanship in this  
SEARS WEIGHT BENCH EXERCISER, contact the nearest SEARS Service Center throughout the United  
States and SEARS will repair or replace the WEIGHT BENCH EXERCISER, free of charge.  
This warranty does not apply when the WEIGHT BENCH 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. 180660 R1101A  
Printed in China © 2001 Sears, Roebuck and Co.  
 

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