Weider Home Gym 831159730 User Manual

®
Patent Pending  
Model No. 831.159730  
Serial No.  
USER’S MANUAL  
The serial number is found in the  
location shown below. Write the  
serial number in the space above.  
Serial  
Number  
Decal  
SEARS, ROEBUCK AND CO.  
HOFFMAN ESTATES, IL 60179  
CAUTION  
Read all precautions and instruc-  
tions in this manual before using  
this equipment. Save this manu-  
al for future reference.  
Visit our website at  
new products, prizes,  
fitness tips, and much more!  
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Before You Begin  
Thank you for selecting the innovative and versatile  
WEIDER® PRO 9940 Home Gym. The WEIDER® PRO  
9940 offers a unique selection 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 WEIDER® PRO 9940  
makes it easy to achieve the results you want.  
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 prod-  
uct model number and serial number before calling.  
The model number is 831.159730. The serial number  
can be found on a decal attached to the WEIDER®  
PRO 9940 Home Gym (see the front cover of this  
manual).  
For your benefit, read this manual carefully before  
using the WEIDER® PRO 9940 Home Gym. If you  
have additional questions, please call our toll-free  
Please use the drawing below to familiarize your-  
self with the major parts and how they fit together.  
ASSEMBLED  
Lat Bar  
DIMENSIONS:  
Height: 77 in.  
Width: 80 in.  
Depth: 55 in.  
High Pulley  
Station  
Butterfly  
Arms  
Ab Pulley  
Station  
Backrest  
Backrest  
Curl Pad  
Press Arms  
Leg Press  
Plate  
Foam Pads  
Seat  
Leg  
Lever  
Low Pulley  
Station  
Leg Press  
Lever  
Weight  
Stacks  
Foot Plate  
3
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Assembly  
Note: This introduction will save you more time  
than it takes to read it!  
Identifying Parts  
To help you identify the small parts used in assem-  
bly, we have included a PART IDENTIFICATION  
CHART located in the center of this manual. Place  
the chart on the floor or work table and use it to  
quickly identify different parts as you open the pack-  
ages for each step. Note: Some small parts may  
have been pre-attached for shipping. If a part is not  
in the parts bag, check to see if it has been pre-  
attached.  
Making Things Easier for Yourself  
Everything in this manual is designed to ensure  
that our products can be assembled successfully  
by anyone. However, it is important to realize  
that your new equipment is a sophisticated prod-  
uct with many small parts. The assembly process  
will take time—possibly several hours. Most peo-  
ple find that by setting aside plenty of time, and  
by deciding to make the task enjoyable, assem-  
bly will go smoothly. You may want to complete  
the process over a couple of evenings.  
Orienting Parts  
As you assemble this product, be sure that all parts  
are oriented as shown in the drawings.  
Tightening Parts  
Tighten all parts as you assemble them, unless  
instructed to do otherwise.  
Some assembly steps require two people.  
Giving Yourself a Good Start  
Before you begin the assembly process itself, take  
the time to complete the steps outlined here.  
Lining Up the Tools  
Assembly requires the following tools (not included):  
• Two (2) adjustable wrenches  
• One (1) standard screwdriver  
• One (1) phillips screwdriver  
• One (1) rubber mallet  
Clearing the Workspace  
Clear a workspace that is large enough to hold all  
parts and allow you to walk all the way around the  
assembled equipment.  
Unpacking the Box  
To make the assembly process as smooth as possi-  
ble, we have broken it into separate stages. All parts  
used in each stage are found in individual packages  
in the shipping box. Place all parts in a cleared area  
and remove the packing materials. Do not dispose of  
the packing materials until assembly is completed.  
• Lubricant, such as grease or petroleum jelly,  
and soapy water  
Tape, such as clear tape or masking tape  
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.  
Important: Wait until you begin each assembly  
stage to open the parts bag labeled for that  
assembly stage.  
The Four Stages of the Assembly Process  
Frame Assembly  
Cable Assembly  
You will begin by assembling the base and the  
upright frames that serve as the skeleton of the  
equipment.  
This assembly completes the cables and pulleys  
that connect the moving arms with each other and  
with the weights.  
Seat Assembly  
Arm Assembly  
This assembly completes the seat and backrest  
that support your body while you are exercising.  
This assembly completes the press and butterfly  
arms that you operate while you are exercising.  
4
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1a  
Frame Assembly  
28  
1. Before beginning, make sure that you have read  
and understood the information on page 4.  
28  
4
Locate and open the parts bag labeled “FRAME  
ASSEMBLY.”  
28  
95  
92  
See drawing 1a. Press a 2” Square Inner Cap (28)  
into each end of the Butterfly Base (4). Press two 2”  
Square Inner Caps (28) into the Weight Base (5).  
5
92  
28  
Insert four 5/16” x 2 1/2” Carriage Bolts (92) up  
through the indicated holes in the Butterfly Base (4).  
Insert a 3/8” x 3 1/2” Carriage Bolt (95) up through  
the hole at the end of the Butterfly Base. Note: If the  
Bolts fall out, secure them by putting a small  
piece of tape over the head of each Bolt. Place the  
Butterfly Base flat on the floor.  
1b  
89  
93  
See drawing 1b. Attach the Weight Base (5) to the  
Butterfly Base (4) with two 5/16” x 2 3/4” Bolts (89), a  
Support Plate with 3 1/2” center holes (93), and two  
5/16” Nylon Locknuts (64). Do not tighten the Nylon  
Locknuts yet.  
64  
64  
4
Note: There are three kinds of Support Plates. The  
main difference between them is the distance  
between the holes. When you need a Support  
Plate, find the type with holes that will fit over the  
Bolts you are using.  
5
2a  
5
24  
63  
63  
2. See drawing 2a. Press a 2” Square Inner Cap (28)  
28  
into the end of the Press Base (6).  
57  
57  
Attach a 3 1/2” Pulley (24) to each of the brackets on  
the Weight Base (5) with a 3/8” x 1 3/4” Bolt (57) and  
a 3/8” Nylon Jamnut (63).  
6
102  
101  
Insert four 5/16” x 2 1/2” Carriage Bolts (92) up  
through the indicated holes in the Press Base (6).  
Insert a 3/8” x 2 1/2” Carriage Bolt (101) and a 3/8 x  
4” Carriage Bolt (102) up through the indicated holes  
at the end of the Press Base (6).  
92  
92  
2b  
5
See drawing 2b. Attach the Press Base (6) to the  
Weight Base (5) with two 5/16” x 2 3/4” Bolts (89), a  
Support Plate with 3 1/2” center holes (93), and two  
5/16” Nylon Locknuts (64). Do not tighten the Nylon  
Locknuts yet.  
64  
64  
93  
6
89  
5
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3. Place the bracket on the lower end of the Butterfly  
Upright (1) over the indicated 5/16” x 2 1/2” Carriage  
Bolts (92) in the Butterfly Base (4). Hand tighten two  
5/16” Nylon Locknuts (64) onto the Bolts. Do not  
tighten the Nylon Locknuts yet.  
3
1
64  
4
92  
4. Press three 2” Square Inner Caps (28) into the  
Butterfly Top Frame (33). Press two 1” Round Inner  
Cap (86) into the top of the Butterfly Top Frame (33).  
4
89  
93  
86  
28  
28  
Attach the Butterfly Top Frame (33) to the indicated  
bracket at the top of the Butterfly Upright (1) with two  
5/16” x 2 3/4” Bolts (89), a Support Plate with 3 1/2”  
center holes (93), and two 5/16” Nylon Locknuts (64).  
33  
64  
28  
1
5. Attach the Butterfly Seat Frame (14) to the Front Leg  
(20) with two 5/16” x 2 3/4” Bolts (89), two 5/16”  
Washers (36), and two 5/16” Nylon Locknuts (64). Do  
not tighten the Nylon Locknuts yet.  
5
64  
1
64  
89  
64  
36  
14  
Slide the bracket on the Front Leg (20) onto the two  
5/16” x 2 1/2” Carriage Bolts (92) in the Butterfly Base  
(4). Hand tighten two 5/16” Nylon Locknuts (64) onto  
the Bolts. Do not tighten the Nylon Locknuts yet.  
36  
64  
64  
89  
20  
Attach the Butterfly Seat Frame (14) to the Butterfly  
Upright (1) with two 5/16” x 2 3/4” Bolts (89), two  
5/16” Washers (36) and two 5/16” Nylon Locknuts  
(64). Do not tighten the Nylon Locknuts yet.  
4
92  
6
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6. Press a 2” Square Inner Cap (28) half way into the  
top of the Front Leg (20). Press a 2” Square Inner  
Cap (28) into each end of the Small Leg Lever (41).  
6
63  
40  
28  
28  
Attach the Bumper (40) to the indicated hole in the  
Front Leg (20) with a 1” Tap Screw (80).  
62  
41  
Lubricate the 3/8” x 3 1/4” Bolt (62). Attach the Small  
Leg Lever (41) to the bracket on the Front Leg (20)  
with the Bolt and a 3/8” Nylon Jamnut (63). Do not  
overtighten the Nylon Jamnut; it must be easy to  
pivot the Leg Lever.  
20  
80  
Lubricate  
28  
7. Press a 1” Square Inner Cap (98) into the small tube  
on the Press Upright (2).  
7
64  
Place the bracket on the lower end of the Press  
Upright (2) over the indicated 5/16” x 2 1/2” Carriage  
Bolts (92) in the Press Base (6). Hand tighten two  
5/16” Nylon Locknuts (64) onto the Bolts. Do not  
tighten the Nylon Locknuts yet.  
92  
Place the bracket on the lower end of the Support  
Frame (3) over the indicated 3/8” x 2 1/2” Carriage  
Bolt (101) and the 3/8” x 4” Carriage Bolt (102) in the  
Press Base (6). Hand tighten a 3/8” Nylon Jamnut  
(63) onto the 3/8” x 2 1/2” Carriage Bolt (101). Do not  
tighten the Nylon Jamnut yet.  
64  
3
2
98  
Note: Do not thread a Jamnut onto the 3/8” x 4”  
Carriage Bolt (102) yet.  
63  
Attach the Support Frame (3) to the Press Upright (2)  
with two 5/16” x 2 1/2” Carriage Bolts (92) and two  
5/16” Nylon Locknuts (64). Do not tighten the Nylon  
Locknuts yet.  
64  
102  
101  
6
92  
89  
8. Press a 2” Square Inner Cap (28) into the Press Top  
Frame (9).  
8
28  
Attach the Press Top Frame (9) to the indicated  
bracket at the top of the Press Upright (2) with two  
5/16” x 2 3/4” Bolts (89), a Support Plate with 3 1/2”  
center holes (93), and two 5/16” Nylon Locknuts (64).  
93  
9
2
64  
7
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9. Press a 2” Square Inner Cap (28) into the Press Seat  
Frame (7).  
9
89  
36  
64  
7
Slide the bracket on the Press Seat Frame (7) onto  
the indicated 5/16” x 2 1/2” Carriage Bolts (92) in the  
Press Base (6). Hand tighten two 5/16” Nylon  
Locknuts (64) onto the Bolts. Do not tighten the  
Nylon Locknuts yet.  
36  
28  
89  
2
64  
64  
Attach the Press Seat Frame (7) to the Press Upright  
(2) with two 5/16” x 2 3/4” Bolts (89), two 5/16”  
Washers (36), and two 5/16” Nylon Locknuts (64). Do  
not tighten the Nylon Locknuts yet.  
6
92  
10. Lubricate the 3/8” x 3” Bolt (88). Attach the Leg Press  
Lever (83) to the Press Base (6) with the Bolt and a  
3/8” Nylon Locknut (50). Do not overtighten the  
Nylon Locknut; the Leg Press Lever must pivot  
easily.  
10  
83  
6
50  
Lubricate  
88  
11. Place two Weight Bumpers (51) over the indicated  
holes in the Weight Base (5). Slide a Weight Guide  
(15) into each of the holes.  
11  
15  
16  
Attach the indicated Weight Guide (15) to the Weight  
Base (5) with a 3/8” x 2 3/4” Bolt (46), two 3/8” Flat  
Washers (48), and a 3/8” Nylon Locknut (50).  
Groove  
Pin  
Slide six Weights (21) onto the Weight Guides (15).  
Make sure the Weights are turned so the pin  
grooves point towards the floor.  
17  
21  
18  
Press a Weight Tube Bumper (18) into the lower end  
of the Short Weight Tube (17). Slide the Weight Tube  
into the center holes in the Weights (21).  
Pin  
Grooves  
Slide a Top Weight (16) onto the Weight Guides (15).  
Note: Make sure the Top Weight is turned so the  
groove fits over the welded pin on the Weight  
Tube (17).  
51  
48  
50  
5
48  
46  
8
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12. Place two Weight Bumpers (51) over the indicated  
holes in the Weight Base (5). Slide a Weight Guide  
(15) into each of the holes.  
12  
15  
Attach the indicated Weight Guide (15) to the Weight  
Base (5) with a 3/8” x 2 3/4” Bolt (46), two 3/8” Flat  
Washers (48), and a 3/8” Nylon Locknut (50).  
16  
Groove  
Pin  
Slide ten Weights (21) onto the Weight Guides (15).  
Make sure the Weights are turned so the pin  
grooves point towards the floor.  
70  
18  
Press a Weight Tube Bumper (18) into the lower end  
of the Long Weight Tube (70). Slide the Weight Tube  
into the center holes in the Weights (21).  
21  
Pin  
Grooves  
Slide a Top Weight (16) onto the Weight Guides (15).  
Note: Make sure the Top Weight is turned so the  
groove fits over the welded pin on the Weight  
Tube (70).  
51  
51  
50  
48  
48  
46  
5
13. Place the Weight Top Frame (66) on the indicated  
brackets on the Uprights (1 and 2). Note: The four  
Weight Guides (15) must be behind the Weight  
Top Frame, as shown in step 14.  
13  
46  
46  
34  
Attach the Weight Top Frame (66) to the Butterfly Top  
Frame (33) with two 3/8” x 2 3/4” Bolts (46), a  
Support Plate with 4” center holes (94), and two 3/8”  
Nylon Locknuts (50). Do not tighten the Nylon  
Locknuts yet.  
50  
66  
94  
33  
50  
Attach the Weight Top Frame (66) to the bracket on  
the Butterfly Upright (1) with two 3/8” x 2 3/4” Bolts  
(46), a Support Plate with 2 1/2” center holes (34),  
and two 3/8” Nylon Locknuts (50). Do not tighten the  
Nylon Locknuts yet.  
15  
1
Brackets  
46  
14. Attach the Weight Top Frame (66) to the Press Top  
Frame (9) with one 3/8” x 2 3/4” Bolt (46), a Support  
Plate with 4” center holes (94), and a 3/8” Nylon  
Locknut (50). Slide a 3 1/2” Pulley (24) with a Cable  
Trap (25) onto a 3/8” x 4” Bolt (78). Insert the Bolt  
through the Support Plate (94) and hand tighten a  
3/8” Nylon Locknut (50) onto it.  
14  
50  
34  
66  
50  
94  
9
Attach the Weight Top Frame (66) to the bracket on  
the Press Upright (2) with two 3/8” x 2 3/4” Bolts (46),  
a Support Plate with 2 1/2” center holes (34) and two  
3/8” Nylon Locknuts (50). Do not tighten the Nylon  
Locknuts yet.  
46  
25  
24  
78  
2
9
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15. Attach each of the four Weight Guides (15) to the  
Weight Top Frame (66) with a 3/8” x 3 3/4” Bolt (59),  
a 3/8” Flat Washer (48), and a 3/8” Nylon Locknut  
(50).  
15  
16  
17  
48  
50  
50  
48  
Important: Go back and fully tighten all Nylon  
Locknuts used in steps 1 through 15.  
59  
59  
15  
15  
Arm Assembly  
16. Locate and open the parts bag labeled “ARM  
ASSEMBLY.”  
8
Press a Plastic Bushing (100) onto each welded tube  
on the Press Frame (8).  
6
50  
Lubricate  
Lubricate the 3/8” x 8” Bolt (52). Attach the Press  
Frame (8) to the welded tubes on the Press Base (6)  
with the Bolt and a 3/8” Nylon Locknut (50). Do not  
overtighten the Nylon Locknut; it must be easy to  
pivot the Press Frame.  
Welded  
Tube  
100  
52  
17. Press a 1 3/4” Square Inner Cap (35) into the top of a  
Press Arm (77). Press a 1” Round Inner Cap (76) into  
the indicated hole in the Press Arm.  
Attach the Press Arm (77) to the bracket on the Press  
Frame (8) with two 5/16” x 2 1/2” Bolts (87) and two  
5/16” Nylon Locknuts (64).  
Repeat this step to assemble the second Press Arm  
(77, not shown).  
35  
76  
64  
8
87  
77  
10  
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18. Press a 1 3/4” Square Inner Cap (35) into each end  
of the Right Butterfly Arm (11). Wet the lower end of  
the Arm with soapy water. Slide a Butterfly Foam Pad  
(29) onto the lower end of the Arm.  
18  
33  
Axle  
11  
Lubricate the indicated axle on the Butterfly Top  
Frame (33). Orient the Right Butterfly Arm (11) as  
shown and slide it onto the axle. Secure the Butterfly  
Arm with two Retainer Rings (31) and a 1” Round  
Outer Cap (38). Note: Place the Retainer Rings on  
top of the inverted Outer Cap and gently tap the  
Cap onto the axle with a hammer. Make sure the  
teeth on the Retainer Rings bend towards the Cap  
as shown in the inset drawing.  
35  
31  
38  
Repeat this step to assemble the Left Butterfly Arm  
(10, not shown).  
35  
29  
Axle  
31  
Teeth  
38  
Cable Assembly  
19. Locate and open the parts bag labeled “CABLE  
ASSEMBLY.” For Cable identification and routing  
during steps 19 to 49, refer to the Cable Diagrams  
and Cable ID Chart on pages 23 and 24.  
19  
84  
Bracket  
Identify the Butterfly Cable (73). It is approximately  
52” long and it has a closed loop on each end. Attach  
the Butterfly Cable to the bracket on the Left Butterfly  
Arm (10) with a 3/8” x 1” Bolt (84) and two 3/8” Nylon  
Jamnuts (63). Note: The loop on the Cable and the  
two Nylon Jamnuts must be mounted underneath  
the welded bracket.  
63  
10  
73  
20. Locate and open the parts bag labeled “PULLEY  
BAG 2.” Remove one “V”-Pulley (27) from the  
bag. Leave the remaining pulleys in the bag for  
identification of the Pro Pulley.  
20  
32  
27  
53  
Wrap the Butterfly Cable (73) around a “V”-Pulley  
(27) in the direction shown. Attach the “V”-Pulley and  
a Large Cable Trap (32) to the bracket on the back  
of the Butterfly Upright (1) with a 3/8” x 2 1/2” Bolt  
(53) and a 3/8” Nylon Locknut (50). Make sure the  
Large Cable Trap is oriented as shown.  
50  
Bracket  
73  
1
11  
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21. Remove both 3 1/2” Pulleys (24) from the pre-assem-  
bled Small Pulley Bracket (22).  
21  
22  
23  
Wrap the Butterfly Cable (73) around a 3 1/2” Pulley  
(24) in the direction shown. Attach the Pulley to the  
Small Pulley Bracket (22) with a 3/8” x 1 3/4” Bolt  
(57) and a 3/8” Nylon Locknut (50). Make sure the  
Small Pulley Bracket is oriented exactly as  
shown.  
73  
24  
50  
22  
57  
22. Wrap the Butterfly Cable (73) around a “V”-Pulley  
(27) in the direction shown. Attach the “V”-Pulley and  
a Large Cable Trap (32) to the bracket on the back  
of the Butterfly Upright (1) with a 3/8” x 2 1/2” Bolt  
(53) and a 3/8” Nylon Locknut (50). Make sure the  
Large Cable Trap is oriented as shown.  
Bracket  
53  
73  
50  
27  
32  
1
23. Attach the Butterfly Cable (73) to the bracket on the  
Right Butterfly Arm (11) with a 3/8” x 1” Bolt (84) and  
two 3/8” Nylon Jamnuts (63). Note: The loop on the  
Cable and the two Nylon Jamnuts must be mount-  
ed underneath the welded bracket.  
84  
Bracket  
63  
11  
73  
24. Identify the Ab Cable (74). It is approximately 224”  
long, and it has a ball on one end and a threaded  
shaft on the other. You will start by attaching the end  
of the Cable with the ball.  
24  
59  
48  
47  
Wrap the Ab Cable (74) around a 3 1/2” Pulley (24) in  
the direction shown. Place two Pulley Covers (47)  
over the Pulley, so that the slots in the Pulley Covers  
are placed over the Cable. Attach the Pulley and  
Pulley Covers to the indicated hole in the Butterfly  
Upright (1) with a 3/8” x 3 3/4” Bolt (59), two 3/8” Flat  
Washers (48), and a 3/8” Nylon Jamnut (63). Make  
sure the Cable is between the Pulley and the  
welded pin on the Upright.  
Pin  
74  
24  
63  
48  
1
12  
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25. Remove both 3 1/2” Pulleys (24) from the pre-assem-  
bled Adjustable Pulley Plates (23).  
25  
Wrap the Ab Cable (74) around a 3 1/2” Pulley (24) in  
the direction shown. Attach the Pulley and a Cable  
Trap (25) to the top hole in the two Adjustable Pulley  
Plates (23) with a 3/8” x 2” Bolt (54) and a 3/8” Nylon  
Locknut (50). Make sure the Cable Trap and the  
Pulley Plates are oriented as shown.  
25  
50  
24  
54  
23  
74  
26. Wrap the Ab Cable (74) around a 3 1/2” Pulley (24) in  
the direction shown. Attach the Pulley to the Small  
Pulley Bracket (22) with a 3/8” x 1 3/4” Bolt (57) and  
a 3/8” Nylon Locknut (50). Make sure the Pulley  
Bracket is oriented as shown.  
26  
50  
22  
57  
24  
74  
27. Wrap the Ab Cable (74) around a 3 1/2” Pulley (24) in  
the direction shown. Attach the Pulley and a Cable  
Trap (25) to the welded bracket on the Butterfly Base  
(4) with a 3/8” x 2” Bolt (54) and a 3/8” Nylon Locknut  
(50). Make sure the Cable Trap is oriented as  
shown.  
27  
74  
54  
24  
25  
4
50  
13  
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28. Wrap the Ab Cable (74) around a 3 1/2” Pulley (24) in  
the direction shown. Slide the Pulley and a Cable  
Trap (25) onto the 3/8” x 3 1/2” Carriage Bolt (95)  
already inserted into the Butterfly Base (4). Secure  
the Pulley with a 3/8” Nylon Jamnut (63). Make sure  
the Cable Trap is oriented as shown.  
28  
63  
74  
24  
25  
24  
Route the threaded end of the Ab Cable (74) under  
the 3 1/2” Pulley (24) that is already mounted on the  
Weight Base (5). Make sure the Cable is routed in  
the direction shown.  
95  
5
4
Note: For clarity, this and the following drawings  
show some parts removed.  
29. Wrap the Ab Cable (74) around a 4 1/2” Pulley (82) in  
the direction shown. Attach the Pulley inside the indi-  
cated bracket on the Weight Top Frame (66) with a  
3/8” x 1 3/4” Bolt (57) and a 3/8” Nylon Locknut (50).  
Make sure the threaded end of the Ab Cable is  
routed through the bracket, as shown.  
29  
50  
82  
Bracket  
57  
66  
74  
End of  
Cable  
30. Attach the threaded end of the Ab Cable (74) to a “U”-  
Bracket (97) with a 1/4” Flat Washer (71) and a 1/4”  
Nylon Locknut (68).  
30  
74  
Attach the “U”-Bracket (97) to the hole in the Short  
Weight Tube (17) with a 5/16” x 1 3/4” Bolt (96) and a  
5/16” Nylon Locknut (64). Note: Do not completely  
tighten the Nylon Locknut; it should be threaded  
only two turns onto the end of the Cable, as  
shown in the inset drawing.  
71  
68  
97  
74  
97  
64  
96  
17  
71  
68  
14  
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31. Remove a Pro Pulley (26) from the bag labeled  
31  
“PULLEY BAG 2”.  
Identify the Low Pulley Cable (75). It is approximately  
143 1/2” long and it has a ball on one end and a loop  
on the other. Route the end with the loop through the  
slot in the cable guide on the Butterfly Base (4).  
54  
26  
25  
Route the Low Pulley Cable (75) under a Pro Pulley  
(26) as shown. Attach the Pro Pulley and a Cable  
Trap (25) to the bracket on the Butterfly Base (4) with  
a 3/8” x 2” Bolt (54) and a 3/8” Nylon Locknut (50).  
Make sure the Cable Trap is oriented as shown.  
4
Cable  
Guide  
50  
1
75  
32. Wrap the Low Pulley Cable (75) around a 3 1/2”  
Pulley (24) in the direction shown. Attach the Pulley  
and a Cable Trap (25) to the indicated hole in the  
Butterfly Upright (1) with a 3/8” x 4 3/4” Bolt (60) and  
a 3/8” Nylon Jamnut (63). Note: Thread the Jamnut  
only two turns onto the Bolt, since you will later  
attach another Pulley to the Bolt. Make sure the  
Cable Trap is oriented as shown.  
32  
60  
24  
25  
63  
75  
33. Wrap the Low Pulley Cable (75) over a 3 1/2” Pulley  
(24) in the direction shown. Attach the Pulley and a  
Cable Trap (25) to the lower hole in the Adjustable  
Pulley Plates (23) with a 3/8” x 2” Bolt (54) and a 3/8”  
Nylon Locknut (50). Make sure the Cable Trap is  
oriented as shown.  
33  
23  
50  
25  
54  
24  
75  
34. Remove the 3/8” Nylon Jamnut (63) from the  
3/8” x 4 3/4” Bolt (60) inserted into the Butterfly  
Upright (1) in step 32.  
34  
1
75  
Wrap the Low Pulley Cable (75) around a 3 1/2”  
Pulley (24) in the direction shown. Attach the Pulley  
and a Cable Trap (25) to the 3/8” x 4 3/4” Bolt (60)  
with the 3/8” Nylon Jamnut (63). Make sure the  
Cable Trap is oriented as shown.  
25  
60  
63  
24  
15  
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35. Attach the loop on the end of the Low Pulley Cable  
(75) to the indicated hole in the Small Leg Lever (41)  
with a 3/8” x 2 3/4” Bolt (46), two 3/8” Flat Washers  
(48), and a 3/8” Nylon Jamnut (63).  
35  
41  
63  
48  
75  
48  
46  
36. Remove a Pro Pulley (26) from the bag labeled  
36  
“PULLEY BAG 2”.  
9
Identify the Press Cable (72). It is approximately 389  
1/2” long and it has a ball on one end and a threaded  
shaft on the other. You will begin by attaching the end  
with the ball.  
63  
48  
26  
72  
Wrap the Press Cable (72) around a Pro Pulley (26)  
in the direction shown. Attach the Pulley to the indi-  
cated hole in the Press Top Frame (9) with a 3/8” x  
3 1/2” Bolt (56), a 3/8” Flat Washer (48), and a 3/8”  
Nylon Jamnut (63). Make sure the Cable is between  
the Pulley and the welded pin on the Press Top  
56  
Pin  
37. Route the threaded end of the Press Cable (72)  
around the 3 1/2” Pulley (24) that is already mounted  
on the Top Frame (9).  
37  
9
24  
72  
38. Wrap the Press Cable (72) around a 3 1/2” Pulley (24)  
in the direction shown. Attach the Pulley to the indicat-  
ed hole in the Press Upright (2) with a 3/8” x 3 3/4”  
Bolt (59), a 3/8” Flat Washer (48) and a 3/8” Nylon  
Locknut (50). Make sure the Cable Trap is oriented  
as shown.  
38  
50  
2
48  
25  
24  
72  
59  
16  
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39. Important: Although the following steps are not  
difficult to perform, the correct routing of the  
cable is critical to the functioning of the home  
gym. Please make sure that you wrap the cable  
around the pulleys exactly as shown in each step.  
39  
40  
41  
50  
24  
Route the Press Cable (72) through the opening in  
the Press Frame (8), and wrap the Cable around a  
3 1/2” Pulley (24) in the direction shown. Route the  
end of the Cable back through the opening in the  
Press Frame.  
72  
62  
48  
8
Attach the Pulley (24) to the indicated hole in the  
Press Frame (8) with a 3/8” x 3 1/4” Bolt (62), a 3/8”  
Flat Washer (48) and a 3/8” Nylon Locknut (50).  
Make sure the Pulley is mounted on the inside of  
the Press Frame. Make sure the Cable Trap is ori-  
ented as shown.  
25  
50  
48  
2
40. Wrap the Press Cable (72) around a “V”-Pulley (27) in  
the direction shown. Attach the “V”-Pulley and a Large  
Cable Trap (32) to the small tube on the Press  
Upright (2) with a 3/8” x 3 1/4” Bolt (62), a 3/8” Flat  
Washer (48) and a 3/8” Nylon Locknut (50). Note:  
The small tube has four adjustment holes. Mount  
the “V”-Pulley in the hole farthest from the  
Upright. Make sure the Cable Trap is oriented as  
shown.  
Small tube,  
last hole  
32  
27  
72  
62  
41. Route the Press Cable (72) back through the opening  
in the Press Frame (8) and wrap the Press Cable  
around a 3 1/2” Pulley (24) in the direction shown.  
Then, route the Press Cable back through the open-  
ing in the Press Frame (8).  
62  
48  
Attach the Pulley (24) to the indicated hole in the  
Press Frame (8) with a 3/8” x 3 1/4” Bolt (62), a 3/8”  
Flat Washer (48), and a 3/8” Nylon Locknut (50).  
Make sure the Pulley is mounted on the inside of  
the Press Frame. Make sure the Cable Trap is ori-  
ented as shown.  
72  
25  
8
24  
50  
42. Wrap the Press Cable (72) around a 3 1/2” Pulley  
(24) in the direction shown. Attach the Pulley and a  
Cable Trap (25) to the indicated hole on the far side  
of the Press Upright (2) with a 3/8” x 4 3/4” Bolt (60)  
and a 3/8” Nylon Jamnut (63). Note: Thread the  
Jamnut only two turns onto the Bolt; you will later  
attach another Pulley to the Bolt. Make sure the  
Cable Trap is oriented as shown.  
42  
24  
25  
60  
2
Route the Press Cable (72) back through the opening  
in the Press Frame (8), so the end is in front of the  
Press Frame.  
72  
63  
17  
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43. Wrap the Press Cable (72) around a 3 1/2” Pulley  
(24) in the direction shown. Attach the Pulley and a  
Cable Trap (25) to the indicated hole on the far side  
of the Leg Press Lever (83) with a 3/8” x 4 3/4” Bolt  
(60) and a 3/8” Nylon Jamnut (63). Note: Thread the  
Jamnut only two turns onto the Bolt; you will later  
attach another Pulley to the Bolt. Make sure the  
Cable Trap is oriented as shown.  
43  
44  
45  
72  
60  
24  
25  
63  
83  
44. Wrap the Press Cable (72) around a “V”-Pulley (27)  
in the direction shown. Attach the “V”-Pulley and a  
Large Cable Trap (32) underneath the Press Seat  
Frame (7) with a 3/8” x 4 1/4” Bolt (85), a 3/8” Flat  
Washer (48), and a 3/8” Nylon Locknut (50). Note:  
the Press Seat Frame has five adjustment holes.  
Mount the “V”-Pulley in the hole closest to the  
Leg Press Lever. Make sure the Cable Trap is ori-  
ented as shown.  
7
85  
48  
32  
27  
72  
50  
45. Wrap the Press Cable (72) around a 3 1/2” Pulley  
(24) in the direction shown. Attach the Pulley and a  
Cable Trap (25) to the near side of the Leg Press  
Lever (83). Use the 3/8” x 4 3/4” Bolt (60) that was  
inserted in step 43 and secure the Pulley with the  
3/8” Nylon Jamnut (63). Make sure the Cable Trap  
is oriented as shown.  
83  
24  
60  
25  
8
72  
63  
46. Wrap the Press Cable (72) around a 3 1/2” Pulley  
(24) in the direction shown. Attach the Pulley and a  
Cable Trap (25) to near side of the Press Upright (2).  
Use the 3/8” x 4 3/4” Bolt (60) that was inserted in  
step 42 and secure the Pulley with the 3/8” Nylon  
Jamnut (63). Make sure the Cable Trap is oriented  
as shown.  
46  
50  
24  
25  
2
102  
72  
Wrap the Press Cable (72) around a 3 1/2” Pulley  
(24) in the direction shown. Attach the Pulley and a  
Cable Trap (25) to the 3/8” x 4” Carriage Bolt (102)  
that was inserted into the Press Base (6) earlier.  
Secure the Pulley with the 3/8” Nylon Locknut (50).  
Make sure the Cable Trap is oriented as shown.  
25  
60  
63  
24  
18  
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47. Route the threaded end of the Press Cable (72)  
around the 3 1/2” Pulley (24) that was mounted on the  
bracket on the Weight Base (5) in an earlier step.  
47  
48  
49  
72  
24  
5
48. Wrap the Press Cable (72) over a 4 1/2” Pulley (82)  
in the direction shown. Attach the Pulley inside the  
indicated bracket on the Weight Top Frame (66) with  
a 3/8” x 1 3/4” Bolt (57) and a 3/8” Nylon Locknut  
(50). Make sure the end of the Cable is routed  
through the bracket, as shown.  
82  
50  
72  
57  
66  
49. Attach the threaded end of the Press Cable (72) to  
the remaining “U”-Bracket (97) with a 1/4” Flat  
Washer (71) and a 1/4” Nylon Locknut (68).  
72  
Attach the “U”-Bracket (97) to the hole in the Long  
Weight Tube (70) with a 5/16” x 1 3/4” Bolt (96) and a  
5/16” Nylon Locknut (64). Note: Do not completely  
tighten the Nylon Locknut; it should be threaded  
only two turns onto the end of the Cable, as  
shown in the inset drawing.  
72  
68  
97  
Important: Follow all four cables from end to end  
and make sure that they rest in the grooves of all  
pulleys and that the cables and the pulleys move  
smoothly.  
72  
64  
97  
96  
71  
68  
70  
19  
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50  
Seat Assembly  
50. Locate and open the parts bag labeled “SEAT  
ASSEMBLY.”  
1
Attach the Backrest (12) to the indicated holes in the  
Butterfly Upright (1) with two 1/4” x 2 1/2” Bolts (79)  
and two 1/4” Flat Washers (71).  
79  
12  
71  
79  
51. Insert a 1/4” x 2 1/2” Carriage Bolt (45) through the  
center hole in a Seat Plate (65). Attach the Seat Plate  
to the Press Backrest (99) with two 1/4” x 3/4” Bolts  
(49).  
51  
2
Insert the 1/4” x 2 1/2” Carriage Bolt (45) into the  
indicated hole in the Butterfly Upright (2) and secure  
it with a 1/4” Flat Washer (71) and a 1/4” Nylon  
Locknut (68). Secure the other end of the Press  
Backrest (99) with a 1/4” x 2 1/2” Bolt (79) and a 1/4”  
Flat Washer (71).  
79  
68  
71  
99  
49  
65  
71  
45  
20  
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52. Insert a 1/4” x 2 1/2” Carriage Bolt (45) through the  
center hole in a Seat Plate (65). Attach the Seat Plate  
to a Seat (13) with two 1/4” x 3/4” Bolts (49).  
52  
Insert the 1/4” x 2 1/2” Carriage Bolt (45) into the indi-  
cated hole in the Butterfly Seat Frame (14) and  
secure it with a 1/4” Flat Washer (71) and a 1/4”  
Nylon Locknut (68). Secure the other end of the Seat  
(13) with a 1/4” x 2 1/2” Bolt (79) and a 1/4” Flat  
Washer (71).  
45  
13  
65  
14  
49  
71  
79  
Attach the other Seat (13) to the Press Seat Frame  
(7, not shown) in the same manner.  
68  
71  
53  
43  
Miscellaneous Assembly  
Tube  
30  
53. Press 3/4” Round Inner Caps (43) into the ends of the  
Pad Tube (42) and the indicated tube on the Front  
Leg (20).  
30  
41  
43  
Insert the Pad Tube (42) into the indicated hole in the  
Small Leg Lever (41). Slide Foam Pads (30) onto the  
ends of the Pad Tube and the tube on the Leg Lever.  
43  
30  
20  
43  
42  
30  
54. Press a 1 3/4” Square Inner Cap (35) into the indicat-  
ed end of the Adjustment Tube (90).  
54  
91  
35  
90  
Attach the Adjustment Tube (90) to the bracket (not  
visible in the drawing) on the back of the Leg Press  
Plate (55) with a 5/16” x 2 1/2” Bolt (87), two 5/16”  
Washers (36), and a 5/16” Nylon Locknut (64).  
36  
64  
87  
Attach the Leg Press Plate (55) to the Leg Press  
Lever (83) by placing the Adjustment Tube (90) into  
the bracket on top of the Leg Press Lever and secur-  
ing it with the Lock Pin (91). Note: The lip on the  
Leg Press Plate must be on the upper edge.  
36  
55  
83  
55. Attach the Curl Pad (105) to the Curl Post (104) with  
two 1/4” x 3/4” Bolts (49).  
55  
105  
49  
104  
21  
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56. Apply the WEIDER PRO 9940 decal in the location shown. Important: The warning decals shown below  
have been attached to the home gym in the locations shown. If a decal is missing or illegible, please  
call our customer hotline at the number on the front cover of this manual to order a replacement  
decal. Apply the new decal in the appropriate location.  
56  
WEIDER  
PRO 9940  
57. Make sure that all parts have been properly tightened. The use of the remaining parts will be explained in  
ADJUSTMENT, beginning on page 25 of this manual.  
Before using the home gym, 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. If there is any  
slack in the cables, you will need to remove the slack by tightening the cables. See TROUBLE-  
SHOOTING AND MAINTENANCE on page 26.  
22  
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Cable Diagrams  
The Cable Diagrams below and on the next page show the proper routing of the Butterfly Cable (73), the Ab  
Cable (74), the Low Pulley Cable (75) and the Press Cable (72). The numbers show the correct route for each  
Cable. Make sure that the Cables are routed correctly, that the Pulleys move smoothly, and that the  
Cable Traps do not touch or bind the Cables. Incorrect cable routing can damage the home gym.  
Ab Cable (74)  
Low Pulley Cable (75)  
7
3
3
1
2
2
1
4
5
8
5
4
Butterfly Cable (73)  
6
4
1
5
2
Cable ID Chart  
73, 52”  
75, 143.5”  
74, 224”  
72, 389.5”  
3
23  
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Press Cable (72)  
14  
2
1
15  
13  
5
6
12  
9
8
4
3
10  
11  
7
24  
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Adjustment  
The instructions below describe how each part of the home gym can be adjusted. Refer to the exercise poster  
accompanying this manual to see how the home gym should be set up for each exercise. IMPORTANT: When  
using an attachment, make sure it is in the correct starting position for the exercise to be performed. If  
there is any slack in the cables or chain as an exercise is performed, the effectiveness of the exercise  
will be reduced.  
Changing the Weight Setting  
19  
To change the setting of the weight stack, insert a Weight  
21  
Pin (19) under the desired Weight (21). Make sure you  
insert the Weight Pin as far as it will go. 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 27 to  
find the approximate amount of resistance at each  
weight station.  
Attaching the Lat Bar, Nylon Strap or Ab Strap to the  
Low Pulley Station  
75  
58  
Attach the Lat Bar (61) to the Low Pulley Cable (75) with  
a Cable Clip (69). For some exercises, the Chain (67)  
should be attached between the Lat Bar and the Low  
Pulley Cable with two Cable Clips. Adjust the length of  
the Chain between the Lat Bar and the Low Pulley  
Cable so the Lat Bar is in the correct starting position  
for the exercise to be performed.  
67  
69  
69  
81  
61  
The Nylon Strap (58) or Ab Strap (81) can be attached in  
the same manner.  
Attaching the Lat Bar, Nylon Strap or Ab Strap to the  
High Pulley Station  
69  
Attach the Lat Bar (61) to the Press Cable (72) with a  
Cable Clip (69). For some exercises, the Chain (67)  
should be attached between the Lat Bar and the High  
Cable with two Cable Clips. Adjust the length of the  
Chain between the Lat Bar and the High Cable so the  
Lat Bar is in the correct starting position for the exer-  
cise to be performed.  
58  
72  
67  
61  
69  
81  
The Nylon Strap (58) or Ab Strap (81) can be attached in  
the same manner.  
91  
Adjusting the Leg Press Plate  
To adjust the position of the Leg Press Plate (55), pull out  
the Lock Pin (91) and slide the Adjustment Tube (90)  
backwards or forwards in the bracket on the Leg Press  
Lever (83). Line up one of the adjustment holes in the  
Adjustment Tube with the hole in the bracket and re-insert  
the Lock Pin.  
90  
83  
55  
25  
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To use the Curl Pad (105), remove the 2” Square Inner  
Cap (28) from the Front Leg (20) and insert the Curl Post  
(104) into the Front Leg. Secure the Curl Pad by inserting  
the Adjustment Knob (103) at the desired height.  
105  
104  
28  
103  
20  
Trouble-shooting and Maintenance  
Inspect and tighten all parts each time you use the home gym. Replace any worn parts immediately. The  
home gym can be cleaned using a damp cloth and mild non-abrasive detergent. Do not use solvents.  
Tightening the Cables  
If a cable slips off the pulleys often, the cable 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.  
The type of cable used on the home gym can stretch slightly when it is first used. If there is slack in the cables  
before resistance is felt, the cables should be tightened. Slack can be removed from the cables in several differ-  
ent ways:  
The Adjustable Pulley Plates (23) have several sets of  
adjustment holes. By moving one or both pulleys (24) to  
a different set of holes, you will tighten the cables.  
23  
Adjustment  
To move a Pulley (24), remove the 3/8” Nylon Locknut  
(50) and the 3/8” x 2” Bolt (54). Remove the Cable Trap  
Holes  
(25) and Pulley from the Adjustable Pulley Plates (23).  
54  
50  
Re-attach the Pulley and Cable Trap to the appropriate  
adjustment hole in the Pulley Plates. Note: Begin by  
moving one Pulley to the second adjustment hole. If  
the cables are still too loose, move the same Pulley  
to the third hole. If additional adjustment is needed,  
move the other Pulley until the cables are tight.  
25  
2
24  
Slack can be removed form the Press Cable (72) by  
moving one or both of the “V”-Pulleys (27) on the Press  
Cable.  
One “V”-Pulley (27) is attached to the small tube on the  
Press Upright (2). There are three free holes in the small  
tube, and you can move the “V”-Pulley to any one of  
them to tighten the cables. Start by moving the “V”-  
Pulley one hole, and then one more, as needed.  
7
27  
27  
72  
The second “V”-Pulley (27) is attached to the Press Seat  
Frame (7). There are five adjustment holes in the Seat  
Frame. By moving the “V”-Pulley closer to the Press  
Upright (2), you will tighten the cables. By moving it fur-  
ther away from the Upright, you will loosen the cables.  
26  
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The threaded ends on the Press Cable (72) and the Ab  
Cable (74) that are attached to the weight stacks can also  
be used to tighten the cables.  
74  
97  
64  
72  
To tighten the Ab Cable (74), remove the “U”-Bracket (97)  
from the Short Weight Tube (17) by removing the 5/16” x  
1 3/4” Bolt (96) and the 5/16” Nylon Locknut (64).  
96  
17  
71  
68  
Tighten the 1/4” Nylon Locknut (68) at the end of the Ab  
Cable (74) as far as it will go. Then re-attach the “U”-  
Bracket (97).  
The Press Cable (72) can be tightened the same way.  
When you are tightening the cables, take note that they  
are linked into two distinct groups. The Butterfly Cable  
(73), the Ab Cable (74), and the Low Pulley Cable (75)  
are all connected to the small weight stack. All three  
cables will be tightened by tightening the Ab Cable (74)  
as described above or by using the Adjustable Pulley  
Plates (23) as described on the previous page.  
The Press Cable (72) is the only cable attached to the  
large weight stack. It must be tightened by using the  
method described above or by moving the “V”-Pulleys as  
described on the previous page.  
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. 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.  
High  
Pulley  
(lbs.)  
Arm  
Press  
(lbs.)  
Leg  
Press  
(lbs.)  
Butterfly  
(lbs.)  
Curl/  
Ab Pulley/  
Weight  
Plates  
Low Pulley Leg Raise  
(lbs.)  
(lbs.)  
Top  
1
14  
28  
16  
37  
21  
8
10  
24  
37  
50  
64  
77  
90  
8
48  
23  
38  
52  
67  
82  
97  
21  
35  
48  
62  
76  
89  
2
42  
58  
75  
3
56  
79  
101  
128  
155  
181  
208  
235  
262  
288  
4
69  
100  
121  
142  
163  
184  
205  
226  
5
83  
6
97  
7
111  
124  
138  
152  
8
9
10  
27  
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3/4" Round Inner Cap (43)  
1" Round Inner Cap (86)  
1” Retainer Ring (31)  
1" Round Inner Cap (76)  
1" Square Inner Cap (98)  
1" Round Outer Cap (38)  
1 3/4" Square Inner Cap (35)  
2" Square Inner Cap (28)  
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3 / 8 " x 4 3 / 4 " B o l t ( 6 0 )  
3 / 8 " x 8 " B o l t ( 5 2 )  
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R0800A  
Part List—Model No. 831.159730  
Key No. Qty.  
Description  
Key No. Qty.  
Description  
1
2
3
4
5
6
7
8
1
1
1
1
1
1
1
1
1
1
1
1
2
1
4
2
1
Butterfly Upright  
Press Upright  
Support Frame  
Butterfly Base  
Weight Base  
Press Base  
Press Seat Frame  
Press Frame  
Press Top Frame  
Left Butterfly Arm  
Right Butterfly Arm  
Backrest  
55  
56  
57  
58  
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  
#
1
1
6
1
6
3
1
4
15  
31  
3
1
1
5
3
1
10  
1
1
1
1
2
2
1
5
1
1
2
1
2
1
2
5
1
14  
1
1
10  
4
2
1
2
2
1
1
2
1
1
1
1
1
1
Leg Press Plate  
3/8” x 3 1/2” Bolt  
3/8” x 1 3/4” Bolt  
Nylon Strap  
3/8” x 3 3/4” Bolt  
3/8” x 4 3/4” Bolt  
Lat Bar  
3/8” x 3 1/4” Bolt  
3/8” Nylon Jamnut  
5/16” Nylon Locknut  
Seat Plate  
Weight Top Frame  
Chain  
1/4” Nylon Locknut  
Cable Clip  
Long Weight Tube  
1/4” Flat Washer  
Press Cable  
Butterfly Cable  
Ab Cable  
Low Pulley Cable  
1” Round Inner Cap  
Press Arm  
9
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  
Seat  
Butterfly Seat Frame  
Weight Guide  
Top Weight  
Short Weight Tube  
Weight Tube Bumper  
Weight Pin  
Front Leg  
Weight  
Small Pulley Bracket  
Adjustable Pulley Plate  
3 1/2” Pulley  
Cable Trap  
Pro Pulley  
“V”-Pulley  
2” Square Inner Cap  
Butterfly Foam Pad  
Foam Pad  
2
2
1
16  
1
2
20  
16  
2
4
13  
2
4
4
4
1
2
7
8
2
2
4
1
1
1
4
2
3
10  
2
18  
8
32  
4
1
3/8” x 4” Bolt  
1/4” x 2 1/2” Bolt  
1” Tap Screw  
Ab Strap  
4 1/2” Pulley  
Leg Press Lever  
3/8” x 1” Bolt  
3/8” x 4 1/4” Bolt  
1” Round Inner Cap  
5/16” x 2 1/2” Bolt  
3/8” x 3” Bolt  
5/16” x 2 3/4” Bolt  
Adjustment Tube  
Lock Pin  
5/16” x 2 1/2” Carriage Bolt  
Support Plate, 3 1/2” Center Holes  
Support Plate, 4” Center Holes  
3/8” x 3 1/2” Carriage Bolt  
5/16” x 1 3/4” Bolt  
“U”-bracket  
1” Square Inner Cap  
Press Backrest  
Plastic Bushing  
3/8” x 2 1/2” Carriage Bolt  
3/8” x 4” Carriage Bolt  
Adjustment Knob  
Curl Post  
Curl Pad  
User’s Manual  
Exercise Poster  
Retainer Ring  
Large Cable Trap  
Butterfly Top Frame  
Support Plate, 2 1/2” Center Holes  
1 3/4” Square Inner Cap  
5/16” Washer  
Butterfly Arm Bushing  
1” Round Outer Cap  
5” Plastic Grip  
Bumper  
Small Leg Lever  
Pad Tube  
3/4” Round Inner Cap  
Large Bushing  
1/4” x 2 1/2” Carriage Bolt  
3/8” x 2 3/4” Bolt  
Pulley Cover  
3/8” Flat Washer  
1/4” x 3/4” Bolt  
3/8” Nylon Locknut  
Weight Bumper  
3/8” x 8” Bolt  
2
4
3/8” x 2 1/2” Bolt  
3/8” x 2” Bolt  
#
1
Note: “#” indicates a non-illustrated part. Specifications are subject to change without notice.  
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The model number and serial number of your WEIDER® PRO  
9940 Home Gym are listed on a decal attached to the frame. See  
the front cover of this manual to find the location of the decal.  
Model No. 831.159730  
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 9940  
Home Gym  
When requesting help or service, or ordering parts, please be pre-  
pared to provide the following information:  
• a part is missing  
• The MODEL NUMBER of the product (831.159730)  
• or you need to schedule repair  
service  
• The NAME of the product (WEIDER® PRO 9940 Home Gym)  
call our toll-free HELPLINE  
• The KEY NUMBER and DESCRIPTION of the PART (see the  
PART LIST/EXPLODED DRAWING in the center of this manual).  
1-800-736-6879  
Monday–Saturday, 7 am–7 pm  
Central Time (excluding holidays)  
REPLACEMENT  
PARTS  
SEARS, ROEBUCK AND CO., HOFFMAN ESTATES, IL 60179  
If parts become worn and need to  
be replaced, call the following toll-  
free number  
1-800-FON-PART  
(1-800-366-7278)  
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 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. 158051 R0800A  
Printed in Canada © 1999 Sears, Roebuck and Co.  
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