Model No. WESY26330 Serial No. Write the serial number in the space above for future reference. USER'S MANUAL Serial Number Decal (Under Seat) QUESTIONS? As a manufacturer, we are committed to providing complete customer satisfaction. If you have questions, or if there are missing or damaged parts, we will guarantee complete satisfaction through direct assistance from our factory. TO AVOID UNNECESSARY DELAYS, PLEASE CALL DIRECT TO OUR TOLL-FREE CUSTOMER HOT LINE.
TABLE OF CONTENTS IMPORTANT PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 BEFORE YOU BEGIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 ADJUSTMENTS . . . . . . . . . . . . .
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 and in the accompanying literature before using the weight system. 12. Always disconnect the lat bar from the weight system when performing an exercise that does not use the lat bar. 2. It is the responsibility of the owner to ensure that all users of the weight system are adequately informed of all precautions. 13.
BEFORE YOU BEGIN Thank you for selecting the versatile WEIDER® PRO 3750 weight system. The weight system offers a 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 weight system will help you to achieve the specific results you want. Department toll-free at 1-800-999-3756, Monday through Friday, 6 a.m. until 6 p.m.
ASSEMBLY Make sure you have the following tools: Make Assembly Easier for Yourself • Two (2) 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. 1 Before you begin this step, make sure that you have read all of the information on page 5. This brief introduction will save you much more time than it takes to read it. 58 58 55 14 Locate and open the parts bags labeled “FRAME ASSEMBLY BAG ONE” and “FRAME ASSEMBLY BAG TWO.” 13 20 40 Press two 2” Square Outer Caps (58) onto the Weight Base (14) in the indicated locations. Press a 2” Square Inner Cap (56) into the end of the Weight Base.
4. Slide the Front Seat Frame (8) onto the indicated 5/16” x 2 1/2” Carriage Bolts (49) in the Press Base (13). Hand tighten two 5/16” Nylon Locknuts (40) onto the Carriage Bolts. Do not tighten the Locknuts yet. 4 40 55 8 20 56 4 Attach the other end of the Front Seat Frame (8) to the Leg Press Upright (4) with two 5/16” x 2 3/4” Bolts (55), two 5/16” Washers (20), and two 5/16” Nylon Locknuts (40). Do not tighten the Locknuts yet.
. Lubricate the insides of the indicated holes in the Top Weights (24). Slide a Top Weight onto each set of Weight Guides (23). 8 23 24 Lubricate 23 FRAME ASSEMBLY Lubricate 9. Attach the Top Frame (2) to the Ab Upright (1) with two 5/16” x 2 3/4” Bolts (55), two 5/16” Washers (20), and two 5/16” Nylon Locknuts (40). Do not tighten the Locknuts yet.
11. Press a 1 3/4” Square Inner Cap (48) into the Adjustment Tube (10). 11 10 FRAME ASSEMBLY Attach the Leg Press Plate (11) to the Adjustment Tube (10) with a 5/16” x 2 1/2” Bolt (39), two 5/16” Washers (20), and a 5/16” Nylon Locknut (40). Be sure that the Leg Press Plate and Adjustment Tube are oriented as shown. 40 20 48 39 11 Angle 12. Attach the Adjustment Tube (10) to the Leg Press Arm (9) with the Lock Pin (73). Be sure the Leg Press Plate (11) is oriented as shown.
15. Attach a Press Arm (7) to one side of the Press Frame (12) with two 5/16” x 2 1/2” Bolts (39) and two 5/16” Nylon Locknuts (40). 15 Attach the other Press Arm (7) to the Press Frame (12) in the same manner. 39 7 40 7 12 16. Press a 1” Round Inner Cap (70) into one of the Press Arms (7). Press a 1 3/4” Square Inner Cap (48) into the Press Arm. 16 48 70 Repeat this step for the other Press Arm (not shown). ARM ASSEMBLY 7 17. Lubricate both axles on the Butterfly Frame (3).
ARM ASSEMBLY 18. Press a 1 3/4” Square Inner Cap (48) into the lower end of the Left Fly Arm (6). Wet the lower end of the Left Fly Arm with soapy water. Slide a 10” Pad (22) onto the Left Fly Arm. 18 6 5 Repeat this step with the Right Fly Arm (5). 48 22 19. Locate and open the parts bags labeled “CABLE ASSEMBLY” and “PULLEYS.” 19 During steps 19 through 50, refer to the CABLE DIAGRAMS on pages 26 and 27 of this manual to verify proper cable routing.
21. Wrap the Butterfly Cable (89) around a 3 1/2” Pulley (82) as shown. Attach the Pulley and a Cable Trap (80) to the bracket on the Leg Press Upright (4) with a 3/8” x 2” Bolt (50) and a 3/8” Nylon Locknut (42). The Cable Trap must be oriented to hold the Cable in the groove of the Pulley. 21 42 4 82 50 80 89 22. Locate one of the preassembled pairs of Pulley Plates (31) and 3 1/2” Pulleys (82). 22 CABLE ASSEMBLY Route the Butterfly Cable (89) under the indicated 3 1/2” Pulley (82).
25. Identify the Rear Cable (87)—this is the shortest Cable. Slide the Rear Cable onto the 5/16” x 3” Bolt (92). Thread another 5/16” Nylon Jamnut (91) onto the Bolt, but do not fully tighten it. Leave enough room between the two Jamnuts for the Cable to pivot. CABLE ASSEMBLY 26. See the inset drawing. Attach a 3 1/2” Pulley (82) and a Cable Trap (80) to the upper hole in a Large “U”-bracket (84) with a 3/8” x 2” Bolt (50) and a 3/8” Nylon Locknut (42).
29. Identify the Press Cable (88)—this is the longest Cable. Attach the end of the Press Cable to the Large “U”-bracket (84) with a 1/4” Nylon Locknut (44) and a 1/4” Washer (37). Do not completely tighten the Locknut. It should be threaded onto the end of the Cable so only a couple of threads are showing above the Locknut, as shown in the inset drawing. 29 44 37 84 44 88 37 84 88 30 CABLE ASSEMBLY 30. Wrap the Press Cable (88) around a 3 1/2” Pulley (82).
32. Route the Press Cable (88) over the indicated 3 1/2” Pulley (82) attached to the Pulley Plates (31). The Cable must be routed from the direction shown. 32 31 50 82 88 Refer to the inset drawing. Make sure that the Press Cable (88) is between the Cable Trap (80) and the 3 1/2” Pulley (82), and that the Cable Trap is positioned to hold the Cable in place. 80 88 Tighten the 3/8” x 2” Bolt (50) and the 3/8” Nylon Locknut (not shown). 33. Route the Press Cable (88) around a 3 1/2” Pulley (82).
36. Route the Press Cable (88) over a 3 1/2” Pulley (82). Attach the Pulley and a Cable Trap (80) to the indicated hole in the Press Frame (12) with a 3/8” x 3 1/2” Bolt (66), a 3/8” Washer (38), and the 3/8” Nylon Locknut (42). 36 66 88 38 12 82 42 80 37. Wrap the Press Cable (88) around a “V”-pulley (81). Attach the “V”-pulley to the lower bracket on the Leg Press Upright (4) with a 3/8” x 2 1/4” Bolt (97) and a 3/8” Nylon Jamnut (43). 37 4 CABLE ASSEMBLY 81 88 43 97 38.
40. Note: The 3 1/2” Pulley (82) used in this step was attached in step 38. It is shown removed for easier part identification. 40 Route the Press Cable (88) around the 3 1/2” Pulley (82). Be sure that the Cable Trap (80) is turned to hold the Cable in place and that the Cable is routed as shown. Tighten the 3/8” x 5” Bolt (74) and the 3/8” Nylon Locknut (42). 42 9 82 80 88 74 CABLE ASSEMBLY 41. Slide a 5/16” Washer (20) onto a 5/16” x 2 3/4” Bolt (55). Insert the Bolt into the Front Seat Frame (8).
44. Locate the remaining preassembled pair of Pulley Plates (31) and 3 1/2” Pulleys (82). 44 Route the High Cable (85) under the indicated 3 1/2” Pulley (82). The end of the Pulley Plates (31) with two holes should be downward. Refer to the inset drawing. Be sure that the Cable is between the Cable Trap (80) and the Pulley, and that the Cable Trap is positioned to hold the Cable in place.
48. Wrap the Low Cable (86) around a 3 1/2” Pulley (82). Attach the Pulley and a Cable Trap (80) to the Ab Upright (1) with the 3/8” x 3 3/4” Bolt (76) and a 3/8” Nylon Locknut (42). Be sure that the Cable Trap is in the indicated position. 48 1 86 42 80 82 76 CABLE ASSEMBLY 49. Remove the indicated 3/8” x 2” Bolt (50), the 3/8” Nylon Locknut (42), the 3 1/2” Pulley (82), and the Cable Trap (80) from the indicated Pulley Plates (31). Wrap the Low Cable (86) over the Pulley.
51. Locate and open the parts bag labeled “SEAT ASSEMBLY.” 51 Attach the Small Backrest (18) to the Ab Upright (1) with two 1/4” x 2 1/2” Machine Screws (64) and two 1/4” Washers (37). 1 37 64 18 52. Press a 1 1/2” Square Inner Cap (57) into the Rear Seat Frame (16). Insert a 1/4” x 2” Carriage Bolt (61) through the center hole in a Seat Plate (41). Attach the Seat Plate to the Seat (17) with two 1/4” x 3/4” Screws (59).
55. Press two 3/4” Round Inner Caps (78) into each Pad Tube (28). 55 16 Insert a Pad Tube (28) into the Rear Seat Frame (16). Slide two Foam Pads (29) onto the ends of the Pad Tube. 78 29 Insert the other Pad Tube (28) into the Leg Lever (15). Slide two Foam Pads (29) onto the ends of the Pad Tube. 28 29 15 56. Attach the Large Backrest (19) to the Leg Press Upright (4) with two 1/4” x 2 1/2” Machine Screws (64) and two 1/4” Washers (37). 78 56 4 SEAT ASSEMBLY 64 57.
ADJUSTMENTS The instructions below describe how each part of the weight system can be adjusted. Refer to the exercise guide accompanying this manual to see how the weight system should be set up for each exercise. IMPORTANT: When attaching the lat bar or nylon strap, make sure that the attachments are 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.
ATTACHING THE AB STRAP TO THE AB PULLEY STATION 86 Attach the Ab Strap (35) to the Low Cable (86) at the ab pulley station with a Cable Clip (33). 33 35 ATTACHING AND REMOVING THE SEAT 30 17 To attach the Seat (17), set the bracket on the Rear Seat Frame (16) onto the pins on the Ab Upright (1). Attach the Rear Seat Frame to the Ab Upright with the 5/16” x 2 3/4” Carriage Bolt (77) and the Seat Knob (30). 77 16 1 For some exercises, the Seat (17) must be removed.
WEIGHT RESISTANCE CHART This chart shows the approximate weight resistance at each weight station. “Top” refers to the 6.5 lb. top weight. The other numbers refer to the 12.5 lb. weight plates. The butterfly arm resistance listed is the resistance for each butterfly arm. WEIGHT PRESS ARM BUTTERFLY ARM LEG LEVER HIGH PULLEY LOW PULLEY LEG PRESS AB PULLEY PLATES (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.
TROUBLESHOOTING AND MAINTENANCE Inspect and tighten all parts each time the weight system is used. Replace any worn parts immediately. The weight system can be cleaned using a damp cloth and 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.
CABLE DIAGRAMS The cable diagrams on this page and the next page show the proper routing of the High Cable (85), the Low Cable (86), the Rear Cable (87), the Press Cable (88), and the Butterfly Cable (89). Use the diagrams to be sure that the cables have been assembled correctly. The starting and ending points of each cable have been labeled. The numbers show the proper route for each cable.
High Cable (85) Rear Cable (87) 1—Top Frame 4 2 3 High Pulley—1 2 3 4—Weight Stack Weight Stack—5 27
PART IDENTIFICATION CHART—Model No.
1" x 7/8" Plastic Bushing (54) 1" Inner Cap (98) 1" Round Inner Cap (70) 1 1/8" x 2 1/2" Plastic Bushing (47) 1 1/2" Square Inner Cap (57) 1/2" x 3/4" Spacer (69) 1" Round Outer Cap (46) 3/4" Round Inner Cap (78) 1 3/4" Square Inner Cap (48) 2" Square Outer Cap (58) 2" Square Inner Cap (56)
1/4" x 2 1/2" Carriage Bolt (60) 5/16" x 2 1/2" Carriage Bolt (49) 5/16" x 2 3/4" Bolt (55) 5/16" x 2 3/4" Carriage Bolt (77) 5/16" x 3" Bolt (92) 3/8" x 3 1/2" Bolt (66) 3/8" x 3 3/4" Bolt (76) 3/8" x 4" Bolt (95) Cable Clip (33) 3/8" x 3 1/4" Bolt (71) 3/8" x 8" Bolt (52) 5/16" x 6" Bolt (67) 3/8" x 2 1/2" Bolt (65) 3/8" x 5" Bolt (74) 5/16" x 2 1/2" Bolt (39)
PART LIST—Model No. WESY26330 Key No. Qty.
78 15 42 38 29 40 78 62 57 57 29 79 28 59 61 17 41 86 42 29 56 42 78 94 1 76 80 82 29 42 38 30 82 38 94 85 2 76 37 16 38 37 40 63 44 28 18 42 56 42 38 55 20 86 77 82 31 55 58 76 93 69 64 50 32 85 23 49 20 27 90 67 26 25 42 24 68 56 14 40 82 43 67 80 64 37 82 95 40 80 50 76 38 50 40 82 55 91 91 40 20 87 42 69 20 55 40 40 37 44 44 68 87 32 40 69 33 42 58 93 90 27 84 88 80 50 31 80 34 40 43 82 20 98 4
ORDERING REPLACEMENT PARTS To order replacement parts, simply call our Customer Service Department toll-free at 1-800-999-3756, Monday through Friday, 6 a.m. until 6 p.m. Mountain Time (excluding holidays). To help us assist you, please be prepared to give the following information: 1. The MODEL NUMBER of the product (WESY26330) 2. The NAME of the product (WEIDER® PRO 3750 weight system) 3. The SERIAL NUMBER of the product (see the front cover of this manual) 4.
