Model No. 831.21521.1 Serial No. Serial Number Decal BIKE EXERCISER User’s Manual • Assembly • Operation • Maintenance • Part List and Drawing CAUTION Read all precautions and instructions in this manual before using this equipment. Keep this manual for future reference. Sears, Roebuck and Co.
TABLE OF CONTENTS IMPORTANT PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 BEFORE YOU BEGIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BEFORE YOU BEGIN Congratulations for selecting the new PROFORM® GR 80 exercise cycle. Cycling is one of the most effective exercises for increasing cardiovascular fitness, building endurance, and toning the body. The GR 80 exercise cycle offers a selection of features designed to let you enjoy this healthful exercise in the convenience and privacy of your home. after reading this manual, please call 1-800-4-MYHOME® (1-800-469-4663).
ASSEMBLY Assembly requires two persons. Place all parts of the exercise cycle in a cleared area and remove the packing materials. Do not dispose of the packing materials until assembly is completed. In addition to the included tools, assembly requires a Phillips screwdriver adjustable wrenches . and two Use the drawings below to identify the small parts used for assembly. The number in parentheses below each drawing is the key number of the part, from the PART LIST on page 14.
1. While another person lifts the front of the Frame (1) slightly, attach the Front Stabilizer (3) to the Frame with two M10 x 75mm Carriage Bolts (51) and two M10 Nylon Locknuts (63). 1 3 51 See the inset drawing. Loosen the Adjustment Knob (17), slide the Rear Frame (2) out of the Frame (1), and then retighten the Adjustment Knob. 1 Note: After the exercise cycle is assembled, adjust the Seat (not shown) to the proper position.
5. Have another person hold the Seat Frames (7) under the Rear Frame (2) as shown. Attach the Seat Frames and the Seat (12) to the Rear Frame with four M6 x 42mm Button Screws (49) and four M6 Washers (55). 5 12 See step 3. Tighten the two M8 x 70mm Button Bolts (54). 2 See step 4. Tighten the four M6 x 38mm Button Screws (48). 55 55 49 6. The Console (16) requires four D batteries (not included); alkaline batteries are recommended. Press the tab on the battery door and remove it.
8. Connect the Upper Wire Harness (36) to the Lower Wire Harness (65). Attach the Upright (13) to the Frame (1) with three M8 x 25mm Button Screws (33) and three M8 Split Washers (59). Be careful to avoid pinching the Wire Harnesses. 8 13 65 33 59 59 1 33 9. Identify the Left Pedal (24), which is marked with an “L.” Using an adjustable wrench, firmly tighten the Left Pedal counterclockwise into the left arm of the Crank (31).
HOW TO OPERATE THE EXERCISE CYCLE Fan Button Increase Button Program Profiles Program/Manual Button Program Indicator Display FEATURES OF THE CONSOLE Pace Guide Decrease Button HOW TO USE THE MANUAL MODE The advanced console offers a selection of features designed to make your workouts more enjoyable and effective. When the manual mode of the console is selected, the resistance of the pedals can be changed with the touch of a button.
4 Next, hold the handgrip pulse sensor with your palms resting on the contacts. When your pulse is detected, the heart-shaped indicator in the lower half of the display will flash each time your heart beats, and your heart rate will be shown. Monitor your progress with the display. The upper half of the display will show the elapsed time, the distance you have pedaled, and the resistance level of the pedals. The display will change from one mode to the next every few seconds.
5 HOW TO USE A PULSE PROGRAM Pulse program 1 is designed to keep your heart rate within a set range during your workout. Pulse program 2 is designed to keep your heart rate near a target heart rate setting that you select. Follow the steps below to use a pulse program. 1 2 3 4 Begin pedaling to start the program. Pulse program 1 is 30 minutes long, and is divided into several time periods of different lengths. One target heart rate is programmed for each period.
7 8 Turn on the fan if desired. automatically change to the resistance level that is programmed for the next period. Note: If the resistance level is too high or too low, you can override it by pressing the Increase and Decrease buttons. However, when the current period ends, the resistance level will automatically change if a different resistance level is programmed for the next period. See step 6 on page 9. When you are finished exercising, the console will automatically turn off.
MAINTENANCE AND TROUBLESHOOTING Inspect and properly tighten all parts of the exercise cycle regularly. Replace any worn parts immediately. With the left side shield removed, locate the Reed Switch (43). Turn the Crank (31) until the Magnet (38) is aligned with the Reed Switch. Next, loosen, but do not remove, the indicated M4 x 16mm Screw (57). Slide the Reed Switch slightly closer to or away from the Magnet, and then retighten the Screw. Turn the Crank for a moment.
CONDITIONING GUIDELINES The following guidelines will help you to plan your exercise program. Remember that proper nutrition and adequate rest are essential for successful results. 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. During the first few minutes of exercise, your body uses easily accessible carbohydrate calories for energy.
PART LIST—Model No. 831.21521.1 Key No. Qty.
EXPLODED DRAWING—Model No. 831.21521.
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 Bike Exerciser, contact the nearest Sears Service Center throughout the United States and Sears will repair or replace the Bike Exerciser, free of charge. This warranty does not apply when the Bike 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.
