Model No. 831.154020 Serial No. Write the serial number in the space above for reference. WEIGHT SYSTEM EXERCISER User’s Manual Serial Number Decal (under seat) • Assembly • Adjustments • Troubleshooting • Part List and Drawing Patent Pending CAUTION Read all precautions and instructions in this manual before using this equipment. Save this manual for future reference. Sears, Roebuck and Co.
TABLE OF CONTENTS WARNING DECAL PLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 IMPORTANT PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 BEFORE YOU BEGIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 ASSEMBLY . . . . . . . . . . . . .
IMPORTANT PRECAUTIONS WARNING: To reduce the risk of serious injury, read the following important precautions before using the weight system. 1. Read all instructions in this manual before using the weight system. Use the weight system only as described in this manual. 9. Keep hands and feet away from moving parts. 10. Make sure that the cables remain on the pulleys at all times. If the cables bind as you are exercising, stop immediately and make sure that the cables are on the pulleys.
BEFORE YOU BEGIN reading this manual, call 1-800-4-MY-HOME® (1-800-469-4663). To help us assist you, please note the product model number and serial number before calling. The model number is 831.154020. 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). Thank you for selecting the versatile WEIDER® PRO 4250 weight system.
ASSEMBLY Make sure you have the following tools: Make Assembly Easier for Yourself • Two adjustable wrenches Everything in this manual is designed to ensure that the weight system can be assembled successfully by anyone. Before beginning assembly, make sure to read the information on this page. This brief introduction will save you much more time than it takes to read it.
1 Frame Assembly 1. Before beginning assembly, make sure you understand the information in the box on page 5. See the PART IDENTIFICATION CHART in the center of this manual for help identifying small parts. 1 69 Insert four M8 x 75mm Carriage Bolts (69) up through the Right Base (1). Note: It may be helpful to place a piece of tape over each bolt head to hold it in place. 69 2. Insert four M8 x 75mm Carriage Bolts (69) up through the Left Base (25).
5. See drawing A. Attach the Right Upright (2) to the Right Base (1) with the two indicated M8 x 75mm Carriage Bolts (69) and two M8 Nylon Locknuts (91). Do not tighten the Locknuts yet. 5A B See drawing B. Attach the Left Upright (26) to the Left Base (25) with the two indicated M8 x 75mm Carriage Bolts (69) and two M8 Nylon Locknuts (91). Do not tighten the Locknuts yet. 26 2 91 91 25 91 91 1 69 69 6.
7. Attach the Left Seat Frame (27) to the Left Base (25) with the two indicated M8 x 75mm Carriage Bolts (69) and two M8 Nylon Locknuts (91). Do not tighten the Locknuts yet. 7 26 98 82 91 Attach the Left Seat Frame (27) to the Left Upright (26) with two M8 x 78mm Bolts (82), two M8 Washers (98), and two M8 Nylon Locknuts (91). Do not tighten the Locknuts yet. 98 27 82 91 25 91 69 8. Orient the Weight Guides (44) with the indicated holes closer to the bottom.
. Slide two Weight Bumpers (45) onto the Weight Guides (44). Slide the eight Weights (55), with the pin holes on the indicated side, onto the Weight Guides. 9 44 Grease 56 Press the Weight Tube Bumper (46) into the Weight Tube (47). Insert the Weight Tube into the stack of Weights (55). Make sure the pin on the Weight Tube sits in the groove in the top Weight. Pin 47 Grease the indicated holes in the Top Weight (56) with an included grease pack. Slide the Top Weight onto the Weight Guides (44).
12. Attach the Left Top Frame (36) to the Right Top Frame (5) with two M8 x 78mm Bolts (82), two M8 Washers (98), two M8 x 83mm Bolts (112), a Support Plate (31), and four M8 Nylon Locknuts (91). Do not tighten the Locknuts yet. 12 36 112 31 98 82 91 98 91 5 13. Attach the Left Top Frame (36) to the Left Upright (26) with two M8 x 83mm Bolts (112), a Support Plate (31), and two M8 Nylon Locknuts (91). Do not tighten the Locknuts yet. 91 13 112 36 31 91 91 14.
16. Attach the Leg Bumper (59) to the Right Seat Frame (3) with an M4 x 16mm Self-tapping Screw (89) and an M4 Washer (96). 16 90 Grease Grease an M10 x 75mm Bolt (60). Attach the Leg Lever (4) to the Right Seat Frame (3) with the Bolt and an M10 Nylon Locknut (90). Make sure the “U”-rod is on the indicated side of the Leg Lever. Do not overtighten the Locknut; the Leg Lever must be able to pivot easily. 4 60 89 96 59 3 “U”-rod 17. Grease an M10 x 108mm Bolt (72).
19. Attach a Press Arm (30) to the Press Frame (29) with two M8 x 69mm Bolt (86) and two M8 Nylon Locknuts (91). 19 Repeat this step with the other Press Arm (30). 30 86 30 29 20. Grease an M10 x 108mm Bolt (72). Attach the Leg Press Frame (28) to the Left Base (25) with the Bolt and an M10 Nylon Locknut (90). Do not overtighten the Locknut; the Leg Press Frame must be able to pivot easily. 91 20 28 90 25 72 21. Grease an M10 x 77mm Bolt (76).
23. Wrap the Press Cable (109) around a 90mm Pulley (63). Attach the Pulley, two Half Finger Guards (66), a Cable Trap (68), and an M10 Washer (99) to the Left Seat Frame (27) with an M10 x 103mm Bolt (22) and an M10 Nylon Locknut (90). Make sure the Cable Trap and the Finger Guards are oriented as shown. 23 27 90 63 66 22 68 24. Wrap the Press Cable (109) around a “V”-pulley (62).
27. Wrap the Press Cable (109) around a “V”-pulley (62). Attach the “V”-pulley, two Half Finger Guards (66), a Large Cable Trap (111), and an M10 Washer (99) inside the bracket on the Left Upright (26) with an M10 x 65mm Bolt (77) and an M10 Nylon Locknut (90). Make sure the Cable Trap and Finger Guards are oriented as shown. 27 66 99 62 109 77 26 111 66 90 28. Wrap the Press Cable (109) around a 90mm Pulley (63).
31. Attach the end of the Press Cable (109) to a “U”bracket (50) with an M8 Washer (98) and an M8 Nylon Locknut (91). Note: Do not completely tighten the Locknut; it should be tightened so that only two threads of the Cable show past the Locknut, as shown in the inset drawing. 31 109 109 98 91 50 91 32. Locate the Butterfly Cable (106). Grease an M8 x 22mm Shoulder Bolt (39). Attach the Cable to the Left Butterfly Arm (6) with the Bolt and an M8 Nylon Locknut (91).
36. Grease an M8 x 22mm Shoulder Bolt (39). Attach the Butterfly Cable (106) to the Right Butterfly Arm (7) with the Bolt and an M8 Nylon Locknut (91). Make sure the flat edge of the Cable is against the Butterfly Arm. 36 39 Grease 106 7 91 Flat Edge 37. Locate the Short Cable (108). Attach the Cable to the M8 x 96mm Bolt (83) used in step 6 with an M8 Washer (98), an M8 x 13mm Spacer (103), and an M8 Nylon Locknut (91). 37 108 98 2 91 103 83 38. Wrap the Short Cable (108) over* a 90mm Pulley (63).
41. Route the Weight Cable (110) over a 90mm Pulley (63) and down through the Right Top Frame (5). Attach the Pulley inside the Top Frame with an M10 x 80mm Bolt (75), two M10 Washers (99), two M10 x 19mm Spacers (102), and an M10 Nylon Locknut (90). 41 75 102 99 90 99 63 110 42. Wrap the Weight Cable (110) under a 90mm Pulley (63).
46. Locate the Ab Cable (107). Route the small ball on the Cable through the Leg Lever (4) and the Right Seat Frame (3). Make sure the Cable is over the rod in the Seat Frame. 46 3 90 4 63 101 Attach a 90mm Pulley (63) inside the Leg Lever (4), over the Ab Cable (107), with an M10 x 65mm Bolt (77), two M10 Washers (99), two M10 x 12mm Spacers (101), and an M10 Nylon Locknut (90). 99 Large Ball Rod 99 107 77 101 47.
50. Wrap the Ab Cable (107) under a 90mm Pulley (63). Attach the Pulley, a Cable Trap (68), and two Half Finger Guards (66) to the Right Base (1) with an M10 x 50mm Bolt (64) and an M10 Nylon Locknut (90). Make sure the Cable Trap and Finger Guards are oriented as shown. 50 90 66 107 63 1 68 66 64 51. Wrap the Ab Cable (107) over a 90mm Pulley (63).
55. Wrap the Ab Cable (107) over a 90mm Pulley (63). Attach the Pulley and the two Quarter Finger Guards (105) to the Right Upright (2) with an M10 x 108mm Bolt (72), an M10 Washer (99), and an M10 Nylon Locknut (90). Make sure that the rod is inserted through both Finger Guards and is over the Cable. 55 Rod 105 90 99 63 105 72 107 2 56. Tighten the Weight Cable (110) into the Weight Tube (not shown) until all the slack is taken out of the cables.
59. Attach a Backrest (9) to the Right Upright (2) with four M6 x 16mm Screws (88). 59 88 2 9 60. Press the two Shroud Covers (11) onto the Shroud (10). Attach the Shroud to the Right Top Frame (5) and the Center Base (52) with four M6 x 22mm Bolts (87), four M6 Washers (97), and four M6 Nylon Locknuts (92). Be careful not to scratch yourself when reaching through the hole in the Shroud.
61. Attach the Lock Plate (21) to the Right Seat Frame (3) with an M8 x 68mm Shoulder Bolt (41), an M8 Washer (98), and an M8 Nylon Locknut (91). Do not overtighten the Locknut; the Lock Plate must be able to pivot easily. 61 91 3 98 89 24 Attach the Leg Pin (24) to the Right Seat Frame (3) with an M4 x 16mm Self-tapping Screw (89). Insert the Leg Pin through the Leg Lever (4) and the Lock Plate (21). 21 4 41 62. Slide the Pad Tube (16) through the Right Seat Frame (3).
ADJUSTMENTS This section explains how to adjust the weight system. See the EXERCISE GUIDELINES on page 29 for important information about how to get the most benefit from your exercise program. Also, see the accompanying exercise guide to see the correct form for each exercise. Make sure all parts are properly tightened each time the weight system is used. Replace any worn parts immediately. The weight system can be cleaned with a damp cloth and a mild, non-abrasive detergent. Do not use solvents.
ADJUSTING THE BACKREST 26 To adjust the position of the left Backrest (9), disengaging the Knob (43) from the Left Upright (26) and move the Backrest to the desired position. Reengage the Knob into the Left Upright and the Backrest Frame (53). Make sure the Knob is fully tightened. 53 9 43 LOCKING THE WEIGHT STACK 44 Lock the weight stack by inserting the Lock Pin (65) through a Weight Guide (44) and securing the Lock (48) onto the Lock Pin.
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. Weight resistance shown for the butterfly arm station is for each arm. 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. WEIGHT HIGH PULLEY (lbs.) BUTTERFLY ARM (lbs.) PRESS ARM (lbs.
CABLE DIAGRAMS The cable diagrams below show the proper routing of the Butterfly Cable (106), the Ab Cable (107), the Short Cable (108), the Press Cable (109), and the Weight Cable (110). Use the diagram to make sure that the cables and the cable traps have been assembled correctly. If the cables have not been correctly routed, the weight bench will not function properly and damage may occur. The numbers show the correct route for each cable. Make sure that the cable traps do not touch or bind the cables.
9 5 2 1 4 3 Weight Cable (110) Length: 12 feet 1 inch 10 6 6 8 7 4 Press Cable (109) Length: 22 feet 6 inches 5 3 2 1 27
MAINTENANCE Make sure all parts are properly tightened each time the weight system is used. Replace any worn parts immediately. The weight system can be cleaned with a damp cloth and a mild, non-abrasive detergent. Do not use solvents. TIGHTENING THE CABLES Woven cable, the type of cable used on the weight system, can stretch slightly when it is first used. If there is slack in the cables before resistance is felt, the cables should be tightened.
EXERCISE GUIDELINES THE FOUR BASIC TYPES OF WORKOUTS PERSONALIZING YOUR EXERCISE PROGRAM Muscle Building 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 progressively increase the intensity of your exercise. You can adjust the intensity level of an individual exercise in two ways: • by changing the amount of resistance used • by changing the number of repetitions or sets performed.
slowly as you stretch and do not bounce. Ease into 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 a short period of time after each set. The ideal resting periods are: • Rest for three minutes after each set for a muscle building workout. • Rest for one minute after each set for a toning workout. • Rest for 30 seconds after each set for a weight loss workout.
EXERCISE MONDAY WEIGHT SETS REPS WEIGHT SETS REPS WEIGHT SETS REPS Date: / / AEROBIC EXERCISE TUESDAY Date: / / WEDNESDAY EXERCISE Date: / / THURSDAY AEROBIC EXERCISE Date: / / EXERCISE FRIDAY Date: / / Make photocopies of this page for scheduling and recording your workouts.
PART IDENTIFICATION CHART—Model No. 831.154020 See the drawings below to identify small parts used in assembly. The number in parentheses by each drawing is the key number of the part, from the PART LIST in the center of this manual. Note: Some small parts may have been pre-attached. If a part is not in the parts bag, check to see if it has been pre-attached. If a part is missing, call toll-free 1-877-992-5999.
PART LIST—Model No. 831.154020 Key No. Qty.
63 20 8 98 98 75 82 4 88 35 20 15 90 17 20 59 3 91 89 96 98 90 18 23 100 90 23 42 89 20 21 91 23 91 91 90 102 99 74 39 106 23 101 99 77 16 35 24 18 20 101 107 99 90 20 17 15 7 19 102 110 99 75 63 68 63 91 19 90 20 9 60 41 88 83 6 91 106 100 39 90 90 90 80 63 91 69 108 103 91 88 107 1 90 10 105 69 66 68 66 11 72 73 104 63 90 105 104 88 90 98 66 2 90 91 68 98 58 13 91 111 62 99 88 111 104 62 91 90 90 99 82 88 8
FULL 90-DAY WARRANTY For 90 days from the date of purchase, if failure occurs due to defect in material or workmanship in this 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.
