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Pro-Form C840 User Manual

Weight bench exerciser 831.153321
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Model No. 831.153321
Serial No.
Write the serial number in the
space above for reference.
Serial Number Decal (under seat)
• Assembly
• Adjustments
• Part List and Drawing
CAUTION
Read all precautions and instruc-
tions in this manual before using
this equipment. Save this manu-
al for future reference.
WEIGHT BENCH EXERCISER
Sears, Roebuck and Co., Hoffman Estates, IL 60179
User's Manual
Patent Pending

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Table of Contents

Troubleshooting

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Summary of Contents for Pro-Form C840

  • Page 1 Model No. 831.153321 Serial No. Write the serial number in the space above for reference. WEIGHT BENCH EXERCISER User’s Manual Serial Number Decal (under seat) • Assembly • Adjustments • Part List and Drawing Patent Pending CAUTION Read all precautions and instruc- tions in this manual before using this equipment.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS WARNING DECAL PLACEMENT ............. 2 IMPORTANT PRECAUTIONS .

  • Page 3: Important Precautions

    IMPORTANT PRECAUTIONS WARNING: To reduce the risk of serious injury, read the following important precautions before using the weight bench. 1. Read all instructions in this manual before 12. Make sure that the set screws attaching the using the weight bench. Use the weight Olympic weight adapters are properly tight- bench only as described in this manual.

  • Page 4: Before You Begin

    Thank you for selecting the versatile PROFORM ® reading this manual, call 1-800-4-MY-HOME ® C840 weight bench. The weight bench offers an (1-800-469-4663). To help us assist you, please note impressive array of weight stations designed to devel- the product model number and serial number before op every major muscle group of the body.

  • Page 5: Assembly

    ASSEMBLY • Place all parts in a cleared area and remove the Make Things Easier for Yourself packing materials. Do not dispose of the packing materials until assembly is completed. This manual is designed to ensure that the weight bench can be assembled successfully The following tools (not included) are required by anyone.
  • Page 6 3. Attach the Leg Lever Bracket (5) to the Bench Frame (1) with two M10 x 68mm Bolts (113) and two M10 Nylon Locknuts (97). Attach the Weight Tube (25) to the Leg Lever (4) Lubricate with an M8 x 58mm Bolt (106), two M8 Washers (100), a 10mm Spacer (30), and an M8 Nylon Locknut (96).
  • Page 7 6. Insert the Backrest Bracket (7) through the slot in the Bench Frame (1) and under the Adjustment Lever (11). Make sure that the M10 x 62mm Flat Head Screw (27) is under the Backrest Bracket arm. Lubricate an M10 x 155mm Bolt (109) with grease.
  • Page 8 9. Slide the Thick Pad Tube (10) into the hole in the Leg Lever Bracket (5). Wet both sides of the Pad Tube with soapy water. Slide two Small Foam Pads (18) onto the Tube as shown. Press two 19mm Square Inner Caps (19) into the Pad Tube. Slide a Pad Tube (9) into a hole in the Leg Lever (4).
  • Page 9 12. See the inset drawing. Attach the Large Base Cap (117) to the Rear Base (33) with an M4 x 16mm Screw (107) and an M8 x 16mm Screw (98). Attach the Rear Base (33) to the Center Base (32) with two M10 x 78mm Bolts (110), two M10 Washers (99), and two M10 Nylon Locknuts (97).
  • Page 10 15. Attach a Base Cap (47) to the Right Base (34) with an M4 x 16mm Screw (107) and an M10 x 19mm Screw (118). Attach the Right Base (34) to the Center Base (32) with three M10 x 68mm Bolts (113), three M10 Washers (99), and two M10 Nylon Locknuts (97).
  • Page 11 19. Press a Round Joint Bushing (74) into the Left Frame Joint (49). Attach the Top Frame (40) to the Left Frame Joint (49) with two M10 x 91mm Bolts (116), four M10 Washers (99), and two M10 Nylon Locknuts (97). Do not tighten the Locknuts yet.
  • Page 12 23. Slide the Barbell Adapter (59) onto the Weight Bar (55). Thread a 1/4” x 9.5mm Allen Head Set Screw (120) into the Barbell Adapter. Do not tighten the Screw yet. Repeat this step with the other Barbell Adapter (not shown). 24.
  • Page 13 25. Insert an M10 x 19mm Hex Head Bolt (132) into the bracket on the Weight Carriage (71) from the side shown. Orient the Weight Carriage (71) as shown and slide it onto the Rear Upright (38). Attach the Weight Carriage Stop (70) to the Rear Upright (38), at the indicated hole, with an M10 x 88mm Bolt (114) and an M10 Nylon Locknut (97).
  • Page 14 28. Attach the Butterfly Frame (42) to the Rear Top Frame (39) with two M10 x 78mm Bolts (110), two M10 Washers (99), and two M10 Nylon Locknuts (97). Do not tighten the Locknuts yet. Attach the Butterfly Frame (42) to the Center Upright (37) with two M10 x 68mm Bolts (113), two M10 Washers (99), and two M10 Nylon Locknuts (97).
  • Page 15 31. Wrap the Butterfly Cable (83) over a “V”-pulley (89). Attach the “V”-pulley and a Large Cable Trap (88) to the Center Upright (37) with an M10 x 60mm Bolt (128) and an M10 Nylon Locknut (97). Make sure the Cable Trap is oriented to hold the Cable in the groove of the “V”-pulley.
  • Page 16 35. Locate the Lat Cable (81). Route the Cable up through the Rear Top Frame (39) and over a 90mm Pulley (90). Attach the Pulley inside the Rear Top Frame with an M10 x 78mm Bolt (110), two M10 Washers (99), two 17mm Spacers (86), and an M10 Nylon Locknut (97).
  • Page 17 40. Locate the Low Cable (82). Route the eyelet end of the Cable through the Center Upright (37) and under a 90mm Pulley (90). Attach the Pulley 97 99 inside the Upright with an M10 x 75mm Bolt (127), two M10 Washers (99), two 17mm Spacers (86), and an M10 Nylon Locknut (97).

  • Page 18: Adjustments

    44. Attach the Low Cable (82) inside the Rear Base (33) with an M10 x 75mm Bolt (127), two M10 Washers (99), two 27mm Spacers (87), and an M10 Nylon Locknut (97). Do not overtighten the Locknut; the Cable must be able to pivot easily. 45.

  • Page 19: Adjustments

    ADJUSTMENTS This section explains how to adjust the weight bench. See the EXERCISE GUIDELINES on page 24 for impor- tant information about how to get the most benefit from your exercise program. See the accompanying exercise guide to see the correct form for each exercise. Make sure all parts are properly tightened each time the weight bench is used.
  • Page 20 USING THE OLYMPIC WEIGHT ADAPTER Press a 48mm Round Inner Cap (23) into the Olympic Adapter (24). Attach the Olympic Adapter to the Weight Tube (25) with a 1/4” x 9.5mm Allen Head Set Screw (120). Make sure that the Set Screw is in the bottom of the Adapter.
  • Page 21 ADDING WEIGHTS TO THE BARBELL OR THE WEIGHT CARRIAGE Weight To use the barbell or Weight Carriage (71), slide the desired amount of weight (not included) onto the Barbell Adapters (59) or Weight Carriage. Secure the weights with the Large Weight Clips (77). Weight WARNING: Do not place more than...

  • Page 22: Cable Diagrams

    CABLE DIAGRAMS The cable diagrams below show the proper routing of the Lat Cable (81), the Low Cable (82), and the Butterfly Cable (83). 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.

  • Page 23: Troubleshooting

    TROUBLESHOOTING Make sure all parts are properly tightened each time the weight bench is used. Replace any worn parts immediate- ly. The weight bench 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 bench, can stretch slightly when it is first used.

  • Page 24: Exercise Guidelines

    EXERCISE GUIDELINES THE FOUR BASIC TYPES OF WORKOUTS PERSONALIZING YOUR EXERCISE PROGRAM MUSCLE BUILDING Determining the exact length of time for each workout, To increase the size and strength of your muscles, as well as the number of repetitions or sets completed, push them close to their maximum capacity.
  • Page 25 Rest for a short period of time after each set. The slowly as you stretch and do not bounce. Ease into ideal resting periods are: each stretch gradually and go only as far as you can • Rest for three minutes after each set for a muscle without strain.
  • Page 26 EXERCISE WEIGHT SETS REPS MONDAY Date: AEROBIC EXERCISE TUESDAY Date: EXERCISE WEIGHT SETS REPS WEDNESDAY Date: THURSDAY AEROBIC EXERCISE Date: EXERCISE WEIGHT SETS REPS FRIDAY Date: Make photocopies of this page for scheduling and recording your workouts.
  • Page 27 EXERCISE WEIGHT SETS REPS MONDAY Date: AEROBIC EXERCISE TUESDAY Date: EXERCISE WEIGHT SETS REPS WEDNESDAY Date: THURSDAY AEROBIC EXERCISE Date: EXERCISE WEIGHT SETS REPS FRIDAY Date: Make photocopies of this page for scheduling and recording your workouts.

  • Page 28: Part Identification Chart

    PART IDENTIFICATION CHART 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. Important: Some parts may have been pre-assembled for shipping purposes.
  • Page 29 M8 x 58mm Bolt (106) M10 x 60mm Bolt (128) M10 x 62mm Flat Head Screw (27) M6 x 63mm Screw (103) M10 x 68mm Bolt (113) M6 x 72mm Screw (105) M10 x 72mm Hex Head Bolt (130) M10 x 75mm Bolt (127) M10 x 78mm Bolt (110) M10 x 88mm Bolt (114) M10 x 91mm Bolt (116)

  • Page 30: Parts List

    PART LIST—Model No. 831.153321 R1104A Key Qty. Description Key Qty. Description Key Qty. Description Bench Frame Base Cap 25mm Retainer Ring Stabilizer Foot Plate 25mm Round Outer Bench Leg Left Frame Joint Leg Lever Right Frame Joint Fly Foam Pad Leg Lever Bracket Left Barbell Glider M8 Nylon Locknut...

  • Page 31: Exploded Drawing

    EXPLODED DRAWING—Model No. 831.153321 R1104A...
  • Page 32 EXPLODED DRAWING—Model No. 831.153321 R1104A...

  • Page 33: Full 90-Day Warranty

    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 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.

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831.153321

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