Weider 831.15973 User Manual

Model No. 831.159730
Serial No.

The serial number is found in the
location shown below. Write the

serial number in the space above.

Serial

Number

Decal

EXERCISE

EQUIPMENT

H __LP LI N E_ !

Patent Pending

USER'S MANUAL

1-800-72,6-6879

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.

www.weiderfitness.com

new products, prizes,

fitness tips, and much morel

ImportantPrecauttons

Before You Begm
Assembly

Cable Diagrams
Adjustment

Trouble-shooting and Mamtenance
Weight Resistance Chart

Ordering Replacement Parts
Full 9g-day Warranty

Note. A PART LIST/EXPLODED DRAWING and a PART IDENTIFICATION CHART are attached in the center of
th_s manual Remove the PART LIST/EXPLODED DRAWING and the PART IDENTIFICATION CHART before

beginning assembly.

^*1 WARNING: To reduce the risk of serious injury, read the following Important precau-

tions before using the home gym.

Back Cover
Back Cover

2
3

.4
23
25

26
27

1. It is the responsibility of the owner to ensure

that all users of the home gym are adequate-

ly informed of all precautions.

2. Read all instructions in this manual and in

7. Always stand on a foot plate when perform-

ing an exercise that could cause the home
gym to tip.

8. Keep hands and feet away from moving parts.

the accompanying literature before using the
home gym.

9. Keep children under the age of t2 and pets

away from the home gym at all times.

3. If you feel pain or dizziness at any time while
exercising, stop immediately and begin cool-

ing down.

4. Use the home gym only on a level surface.

Cover the floor or carpet beneath the home
gym for protection.

5. Inspect and tighten all parts often. Replace
any worn parts immediately.

t0. Always wear athletic shoes for foot protec-

tion when exercising.

11. Never release the press arms, butterfly arms,

leg lever, lat bar or ab strap while weights are
raised. The weights will fall with great force.

12. Alwavs disconnect the lat bar or ab strap

frgm the home avm when Derformina an
exercise that does not use the attachments.

6. Make sure the cables remain on the pulleys

at all times. If the cables bind while you are
exercising, stop immediately and make sure

the cables are on all of the pulleys.

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.

13. The home gym Is intended for home use only.
Do not use the home gym in a commercial,

rental or institutional setting.

2

Thank you for selectingthe innovative and versatile
WELDER®PRO 9940 Home Gym. The WELDER®PRO
9940 offers a unique selectionof weightstations

designed to develop every major muscle groupof the

body.Whether your goal is to tone your body,build

dramatic muscle size and strengthor improve your
cardiovascularsystem, the WELDER®PRO 9940

makes iteasy to achieve the resultsyouwant.

HELPLINE at 1-800-736-6879, Monday through
Saturday, 7 a.m. until7 p.m. Central Time (excluding

holidays).To help us assistyou, please note the prod-
uctmodel number and serialnumber before calling.

The model number is 831.159730. The serial number
can be found on a decal attached to the WELDER®

PRO 9940 Home Gym (see the front cover ofthis
manual).

For your benefit, read this manual carefully before
using the WELDER®PRO 9940 Home Gym. If you
have additionalquestions, please call our toll-free

ASSEMBLED

DIMENSIONS:
Height: 77 in.

Width: 80 in.

Depth: 55 in.

BuRe_y

Lat Bar

Arms

Ab Pulley

Station

Backrest [

Curl Pad

Foam Pads

Please usa the drawing below to familiarize your-

self with the major parts and how they fit together.

High Pulley

Station

PressArms

Leg Press

Plate

Leg
Lever

Low Pulle_

Station

Foot Plate

Weight
Stacks

Seat

Leg Press
Lever

3

Note: This introduction will save you more time

than it takes to read itl

MaDdr__lngs _Ser for_yo.rs=_i

by anyone. However,;iHs_i_to_ealize' ,

tl_t your newequi._..:is a,_ prod-_

wmtake_ _ houm.!Mo=peo-

Identifying Parts

To helpyou identifythe small parts used in assem-

bly,we have includeda PART IDENTIFICATION
CHART located in the center of th_smanual. Place

the chart on the floor or worktable and use it to

quickly identifydifferentpartsas you open the pack-
ages for each step. Note Some small parts may
have been pra-attached for shipping.If a part is not
in the parts bag, check to see if it has been pre-

attached.

by.deddlrigtomakethe.ta_eejWal_i,usam--

bWy_1iOo:=_==li_s:Y=;Jiiiis wantio'ix_nplete.

the precessover_tooupieof eventhg_

, '_.

Some assembly steps require two people.

Giving Yourself a Good Start

Beforeyou begin the assembly processitself, take

the bme to complete the steps outlinedhere.

Clearing the Workspace
Clear a workspace that is large enough to holdall

parts and allow you to walk all the way around the

assembled equipment.

Unpacking the Box

To make the assembly process as smoothas possi-

ble,we have broken it into separate stages. Allparts
used in each stage are found in individualpackages
in the shippingbox. Place all parts in a cleared area

and removethe packing materials. Do not disposeof
the packingmaterials untilassembly _scompleted.

Important: Wait until you begin each assembly
stage to open the parts bag labeled for that
assembly stage,

Orienting Parts

As you assemble this product,be sure that all parts

are oriented as shown in the drawings.

Tightening Parts
Tighten all partsas you assemble them, unless

instructedto do otherwise.

Lining Up the Tools

Assembly requiresthe following tools (not included):

• Two (2) adjustablewrenches

• One (1) standard screwdriver

• One (1) phillipsscrewdriver

• One (1) rubber mallet

• Lubricant,such as grease or petroleumjelly,

and soapy water

• Tape, such as clear tape or maskingtape
Assemblywill be more convenient if you have a

socketset, a set ofopen-end or closed-endwrenches
or a set of ratchet wrenches.

The Four Stages of the Assembly Process

Frame Assembly
You willbegin by assembhngthe base and the

uprightframes that serve as the skeletonof the
equipment.

Arm Assembly
This assembly completes the press and butterfly

arms that you operate while you are exercising.

Cable Assembly
This assembly COmpletesthe cables and pulleys

that connect the movingarms with each other and
with the weights.

Seat Assembly
This assembly completes the seat and backrest

that supped your bodywhile you are exercising.

4

la

1.

Before beginning, make sure that you have read

and understood the information on page 4.

Locate and open the parts bag labeled "FRAME

ASSEMBLY."

See drawing la. Press a 2" Square Inner Cap (28)
intoeach end of the ButterflyBase (4). Presstwo 2"

Square Inner Caps (28) into the Weight Base (5).

Insertfour 5/16" x 2 1/2"Carriage Bolts(92) up

through the indicated holes inthe ButterflyBase (4).

Inserta 3/8" x 3 1/2" Carriage Bolt (95) up through

the hole at the end of the ButterflyBase. Note: If the

Bolts fall out, secure them by putting a small
piece of tape over the head of each Bolt. Place the
ButterflyBase fiat on the floor.

See drawing lb. Attach the Weight Base (5) to the
ButterflyBase (4) with two 5/16" x2 3/4" Bolts(89), a

SupportPlate with 3 1/2" center holes (93), and two
5/16" Nylon Locknuts(64). Do not tighten the Nylon
Locknuts yet.

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.

28

4

92

28

lb 89

64

5

2a

2,

See drawing 2a. Pressa 2" Square Inner Cap (28)
intothe end of the Press Base (6).

Attach a 3 1/2" Pulley(24) to each of the bracketson

theWeight Base (5) with a 3/8"x 1 3/4" Bolt (57) and
a 318"NylonJamnut (63).

Insertfour 5/16" x 2 1/2" Carriage Bolts(92) up
throughthe indicated holes in the Press Base (6).

Inserta 3/8" x 2 1/2"Carriage Bolt (101) and a 318x

4" Carriage Bolt(102) upthroughthe indicated holes

at the end of the Press Base (6).

See drawing 2b. Attach the Press Base (6) to the
Weight Base (5) with two 5/16" x 2 3/4" Bolts (89), a

SupportPlate with 3 1/2" center holes (93), and two
5/16" Nylon Locknuts(64). Do not tighten the Nylon
Locknuts yet.

28

102

92 101

2b

64

93

89

5

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.

1

64

4,

Press three 2" Square Inner Caps (28) intothe
ButterflyTop Frame (33). Press two 1"Round Inner

Cap (86) intothe top of the ButterflyTop Frame (33).

Attach the Butterfly TopFrame (33) to the indicated

bracketat the top of the ButterflyUpright(1) withtwo
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).

5. Attach the ButterflySeat 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.

Slide the bracket on the Front Leg (20) onto the two
5/16" x 2 1/2" Carriage Bolts (92) in the ButterflyBase
(4). Hand tighten two 5/16" Nylon Locknuts(64) onto

the Bolts. Do not tighten the Nylon Locknute yet,

89

4\

92

4

86

8c

3 _28

84 u

Attach the ButterflySeat 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.

6

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) intoeach end of the Small Leg Lever (41).

Attach the Bumper (40) to the indicated hole in the
Front Leg (20) with a 1"TapScrew (80).

Lubricatethe 3/8" x 3 1/4" Bolt (62). Attach the Small
Leg Lever (41) tothe bracket on the FrontLeg(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.

7.

Press a 1" Square Inner Cap (98) intothe smalltube

on the Press Upright(2).

Place the bracketon the lower end of the Press
Upright(2) over the indicated 5/16" x 2 1/2" Carriage

Bolts(92) inthe Press Base (6). Hand tighten two

5/16" Nylon Locknuts(64) ontothe Bolts.Do not
tighten the Nylon Locknuts yet.

Place the bracketon 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" NylonJamnut
(63) ontothe 3/8" x 2 1/2" Carriage Bolt(101). Do not

tighten the Nylon Jarnnut yet.

40

Lubricate

64

Note: Do not thread a Jamnut onto the 3/8" x 4"
Carriage Bolt (102) yet.

Attach the SupportFrame (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.

8.

Press a 2" Square Inner Cap (28) intothe PressTop
Frame (9).

Attach the Press TopFrame (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).

63

/

/

102

101

92

_> ._28

7

9.

Press a 2" Square InnerCap (28) intothe Press Seat
Frame (7).

Slide the bracketon the Press Seat Frame (7) onto
the indicated 5/16" x 2 1/2"Carriage Bolts(92) in the
Press Base (6). Hand tightentwo 5/16" Nylon

Locknuts(64) ontothe Bolts. Do not tighten the
Nylon Locknuts yet.

Attach the Press Seat Frame (7) to the Press Upright

(2) withtwo 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.

10. Lubricatethe 3/8" x 3"Bolt (88). Attach the Leg Press
Lever (83) to the Press Base (6) with the Boltand a

3/8" Nylon Locknut(50). Do not overtighten the
Nylon Locknut; the Leg Press Lever must pivot
easily.

36

11. Place two Weight Bumpers (51) over the indicated

holesin the Weight Base (5). Slidea Weight Guide
(15) intoeach of the holes.

Attach the indicatedWeight 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).

Slide six Weights (21) ontothe Weight Guides (15).
Make sure the Weights are turned so the pin
grooves point towards the floor.

Press a Weight Tube Bumper (18) intothe lowerend
of the ShortWeight Tube (17). Slide the Weight Tube

intothe center holesin the Weights (21).

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).

8

12. Place two Weight Bumpers (51) over the indicated
holes inthe Weight Base (5). Slide a Weight Guide

(15) intoeach ofthe holes.

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).

Slide ten Weights (21) ontothe Weight Guides (15).
Make sure the Weights are turned so the pin

grooves point towards the floor.

Press a Weight Tube Bumper (18) intothe lowerend
of the Long Weight Tube (70). Slidethe Weight Tube
intothe center holes inthe Weights (21).

Slide a Top Weight (16) ontothe Weight Guides (15).
Note: Make sure the Top Weight is tumed so the

groove fits over the welded pin on the Weight
Tube (70).

12

Pin

51

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.

Attach the Weight Top Frame (66) tothe ButterflyTop
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.

Attach the Weight Top Frame (66) to the bracketon
the ButterflyUpright (1) with two 3/8"x 2 3/4" Bolts

(46), a Support Plate with 2 1/2" centerholes (34),
and two 3/8" NylonLocknuts(50). Do not tighten the
Nylon Locknuts yet.

14. Attach the Weight TopFrame (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). Insertthe Bolt
throughthe Support Plate (94) and hand tightena
3/8" Nylon Locknut(50) onto it.

5

13 34_46

46 ,. _¢U-o'_'=_._ 50

Attach the Weight Top Frame (66) tothe bracket on
the Press Upright(2) withtwo 3/8" x 2 3/4" Bolts (46),

a SupportPlate with 2 1/2" center holes(34) and two
3/8" Nylon Locknuts(50). Do not tighten the Nylon

Locknuts yet.

9

15. Attach each of the four Weight Guides (15) tothe

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).

Important: Go back and fully tighten all Nylon
Locknuts used in steps 1 through 15.

16. Locate and open the parts bag labeled "ARM

ASSEMBLY."

Press a Plastic Bushing(100) onto each welded tube
on the Press Frame (8).

15 48 50

Lubricatethe 3/8" x 8" Bolt(52). Attach the Press
Frame (8) tothe 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,

17. Press a 1 3/4" Square InnerCap (35) intothe topof a

PressArm (77). Press a 1" Round InnerCap (76) into

the indicated holein the PressArm.

Attach the Press Arm (77) to the bracket on the Press

Frame (8) with two 5/16" x 2 112"Bolts(87) and two
5/16" Nylon Locknuts(64).

Repeat this stepto assemble the second PressArm
(77, not shown).

Lubricate

52

35

64

10

77