NordicTrack 831.159760 manual

SEARS, ROEBUCK AND CO. HOFFMAN EST A TES, IL 60179 CAUTION Read all precautions and instruc- tions in this manual before using this equipment. Save this manual for future reference. Model No. 831.159760 Serial No. The serial number is found in the location shown below . Write the serial number in the space above. Serial Number Decal Visit our websi[...]

2 Important Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Before Y ou Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Assembly . . . . . . . . . . .[...]

3 Important Precautions 1. Read all instructions in this manual and in the accompanying literature before using the weight system. 2. It is the responsibility of the owner to ensure that all users of the weight system are ade- quately informed of all precautions. 3. The weight system is intended for home use only . Do not use the weight system in a[...]

4 ASSEMBLED DIMENSIONS: Height: 81 in. Width: 72 in. Length: 64 in. Low Pulley Station Foot Plate High Pulley Station Curl Pad Shroud Seat Leg Press Backrest Leg Lever Thank you for selecting the versatile NordicT rack ® GRT 490 weight system. The NordicT rack ® GRT 490 offers a selection of weight stations designed to devel- op every major muscl[...]

5 Assembly Make sure you have the following tools: • T wo adjustable wrenches • One standard screwdriver • One phillips screwdriver • One rubber mallet • Y ou will also need grease or petroleum jelly , a small amount of soapy water , and clear tape or masking tape. Note: Assembly will be more convenient if you have a socket set, a set of [...]

6 1. Open the parts bag labeled “FRAME ASSEMBL Y .” Press a 2” x 3” Inner Cap (24) into the Main Upright (3) in the indicated location. Press a 2” x 3” Inner Cap (24) into each end of the Stabilizer (5). Inset three 3/8” x 3 3/4” Carriage Bolts (52) and a 3/8” x 5” Carriage Bolt (82) into the indicated holes in the Stabilizer (5[...]

4. Place two Weight Bumpers (19) over the indicated holes in the Stabilizer (5). Insert the two Weight Guides (23) into the Weight Bumpers and the Stabilizer . Attach the indicated Weight Guide (23) to the Stabilizer (5) with a 3/8” x 2 1/2” Bolt (54), two 3/8” Flat W ashers (55), two 5/8” x 1/2” Pulley Bushings (42), and a 3/8” Nylon J[...]

8 7. T urn the Adjustment Knob (9) on the Sliding Seat Frame (74) counterclockwise to loosen it. Pull out the Knob as far as possible and slide the Seat Frame Channel (88) into the Sliding Seat Frame. Release the Knob and let it snap into one of the adjustment holes in the Seat Frame Channel. T ighten the Knob fully . Press a 2” Square Inner Cap [...]

9 Arm Assembly 46 12 45 33 20 9 9 20 33 10. Attach the Press Arm (46) to the Press Frame (12) with two 3/8” x 3” Bolts (45) and two 3/8” Nylon Locknuts (50). Insert a 2” Square Inner Cap (33) into each end of the Press Arm (46). T urn one of the Adjustment Knobs (9) on the Press Arm (46) counterclockwise to loosen it. Pull out the Knob as f[...]

10 87 97 98 84 50 13. Attach the Leg Press Attachments (100) to the Rear and Forward Leg Press Uprights (97, 98) with two 3/8” x 3 1/4” Bolts (87) and two 3/8” Nylon Jamnuts (63). 13 87 100 100 98 12. Attach the Rear and Forward Leg Press Uprights (97, 98) to the Leg Press Base (84) with two 3/8” x 3 1/4” Bolts (87) and two 3/8” Nylon L[...]

17. Wrap the Leg Press Cable (76) under a 4” Pulley (35). Attach the Pulley and a Cable T rap (44) to the Leg Press Base (84) with a 3/8” x 3 3/4” Bolt (92), a 3/8” Flat W asher (55), and a 3/8” Nylon Locknut (50). Be sure that the Leg Press Cable (76) is routed in the direction shown, and that the Cable T rap (44) is positioned to hold t[...]

20. Remove the pre-assembled 4” Pulley (not shown) from the Pulley Bracket (91). Attach the end of the Leg Press Cable (76) to the Pulley Bracket (91) with a 1/4” Flat W asher (71) and a 1/4” Nylon Locknut (25). Lay the Pulley Bracket (91) and the Leg Press Cable (76) aside; they will be attached in step 28. 20 71 25 91 76 19. Wrap the Leg Pr[...]

13 22. Remove the upper 3/8” x 3” Bolt (45) from the T op Frame (1) and the Main Upright (3). Feed the bolt on the High Cable (73) down through the indicated slot in the Main Upright (3). Wrap the High Cable (73) around a 4” Pulley (35) in the direction shown. Attach the Pulley inside the slot in the Main Upright (3) with a 3/8” x 2 1/2” [...]

14 25. Wrap the High Cable (73) around a 4” Pulley (35). Attach the Pulley inside the slot in the Main Upright (3) with a 3/8” x 2 1/2” Bolt (54), two 3/8” Flat W ashers (55), two 5/8” x 1/2” Pulley Bushings (42), and a 3/8” Nylon Jamnut (63). 25 55 42 63 3 35 42 55 54 73 26. Disassemble the pre-assembled Pulley Plates (31). Wrap the [...]

15 28. Wrap the High Cable (73) around a 4” Pulley (35). Attach the Pulley and a Cable T rap (44) to the top hole in the Pulley Bracket (91) attached to the Leg Press Cable (76), with a 3/8” x 1 3/4” Bolt (60) and a 3/8” Nylon Jamnut (63). 29. Feed the bolt on the High Cable (73) up through the next slot in the T op Frame (1). Wrap the High[...]

16 50 3 72 8 35 62 Slot 32. Attach a 4” Pulley (35) inside the slot in the Leg Lever (29) with a 3/8” x 2 1/2” Bolt (54), two 3/8” Flat W ashers (55), two 5/8” x 1/2” Pulley Bushings (42), and a 3/8” Nylon Jamnut (63). Attach the 1/2” x 1 3/4” Bushing (94) inside the bot- tom of the Leg Lever (29) with a 5/16” x 2 1/2” Bolt (9[...]

36. Feed the end of the Low Cable (72) through the indi- cated slot in the Main Upright (3). Wrap the Low Cable (72) around a 4” Pulley (35). Attach the Pulley inside the slot in the Main Upright (3) with a 3/8” x 2 1/2” Bolt (54), two 3/8” Flat W ashers (55), two 5/8” x 1/2” Pulley Bushings (42), and a 3/8” Nylon Jamnut (63). 36 Slot[...]

18 Seat Assembly 39. Attach the Backrest (41) to the Backrest Frame (15) with four 1/4” x 3/4” Bolts (17). Press a 3/4” Round Inner Cap (34) into each end of the pad bar on the Backrest Frame (15). Slide a Foam Pad (30) onto each end of the pad bar . Press 1” x 2” Inner Caps (43) into the top and bottom of the Backrest Frame (15). 39 17 4[...]

19 42. Attach the Leg Press Backrest (70) to the Sliding Seat Frame (74) with four 1/4” x 3/4” Bolts (17). 41. Attach the remaining Seat (13) to the Sliding Seat Frame (74) with four 1/4” x 3/4” Bolts (17). 42 17 41 13 17 74 74 44 38 Bracket 39 26 5 44. Slide the four T innerman Clips (38) down over the slots in the bracket on the Stabilize[...]

20 49. Make sure that all parts have been properly tight- ened. The use of the remaining parts will be explained in ADJUSTMENT , beginning on page 22 of this manual. Before using the weight system, pull each cable a few times to make sure that the cables move smoothly over the pulleys. If one of the cables does not move smoothly , find and correct [...]

21 Cable Diagram The diagram below shows the proper routing of the Low Cable (72), the High Cable (73), and the Leg Press Cable (76). The numbers show the correct route for each cable. Make sure that the cables are routed cor- rectly , that the pulleys move smoothly , and that the cable traps do not touch or bind the cables. Incorrect cable routing[...]

Attaching the Lat Bar , Ankle Strap, or Ab Strap The Lat Bar (61), Ankle Strap (10), and Ab Strap (75) can be attached to the cable at the desired pulley station with a Cable Clip (69). For some exercises, the Chain (67) should be connected between the attachment and the cable with two Cable Clips. Adjust the length of the Chain between the accesso[...]

Adjusting the Position of the Backrest T o adjust the position of the Backrest (41), first loosen the Adjustment Knob (9). Pull the Knob out as far as possible and slide the Backrest Frame (not shown) to the desired position. Release the Knob so that it snaps into one of the adjustment holes on the Backrest Frame. Fully retighten the Knob. Using th[...]

24 Tightening the Cables Woven cable, the type of cable used on the weight sys- tem, can stretch slightly when it is first used. If there is slack in the cables before resistance is felt, the cables should be tightened. T o tighten the cables, insert the Weight Pin (39) under the third Weight (26) from the top. Next, loosen the 1/2” Plain Nut (68[...]

25 This chart shows the approximate weight resistance at each weight station. “T op” refers to the 10 lb. top weight. The other numbers refer to the 10 lb. weight plates. 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. W eight[...]

26 Exercise Guidelines THE FOUR BASIC TYPES OF WORKOUTS Muscle Building T o increase the size and strength of your muscles, push them close to their maximum capacity . Y our mus- cles will continually adapt and grow as you progres- sively increase the intensity of your exercise. Y ou can adjust the intensity level of an individual exercise in two w[...]

27 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 work- out. • Rest for 30 seconds after each set for a weight loss workout. Plan to spend the first couple of weeks familiarizing yourself wit[...]

1 1/2" Flat W asher (40) 3/8" Flat W asher (55) 5/16" Nylon Jamnut (79) 1/4" Flat W asher (71) 5/16" Flat W asher (80) 1/4" x 1 1/2" Screw (49) 3/8" Nylon Locknut (50) Large W asher (104) 1/4" x 3/4" Bolt (17) 1/4" x 1" Bolt (95) #10 x 1" T ap Screw (7) 1/4" x 1 1/2" Bolt (1[...]

3/8" x 1 3/4" Bolt (60) 3/8" x 3 3/4" Carriage Bolt (52) 3/8" x 5 1/2" Bolt (57) 3/8" x 2" Bolt (62) 3/8" x 2 1/2" Bolt (54) 3/8" x 3" Bolt (45) 3/8" x 4" Bolt (65) 3/8" x 1 1/2" Button Cap Screw (2) 3/8" x 3" Carriage Bolt (107) 3/8" x 5" Carriage B[...]

Cable Clip (69) 3/4" Round Inner Cap (34) 1" x 2” Inner Cap (43) 1" Round Inner Cap (103) 5/8” x 1/2” Pulley Bushing (42) 1/2” x 3/4” Long Bushing (106) 1/2” x 1 3/4” Bushing (94) 5/8” x 1/4” Bushing (90) 2" x 3” Inner Cap (24) 2" Square Inner Cap (33) 1/4” x 7/8” Flange Bushing (47) 1 1/8” x 1/2?[...]

Part List—Model No. 831.159760 R0801A 1 1 T op Frame 2 1 3/8” x 1 1/2” Button Cap Screw 3 1 Main Upright 4 1 Foot Plate 5 1 Stabilizer 6 1 Leg Lever Bumper 7 1 #10 x 1” T ap Screw 8 1 Base 9 5 Adjustment Knob 10 1 Ankle Strap 1 1 1 Leg Lever Lock 12 1 Press Frame 13 2 Seat 14 2 Plastic Sleeve 15 1 Backrest Frame 16 1 T op Weight 17 22 1/4?[...]

52 50 50 24 19 35 62 63 54 63 54 63 50 45 54 54 63 24 33 81 78 50 65 78 80 80 11 63 54 34 30 28 30 34 8 5 17 41 15 34 30 34 30 17 7 6 55 55 55 55 55 55 55 55 55 9 33 3 17 17 37 13 35 50 72 54 55 42 35 42 35 42 42 63 60 31 35 31 44 44 35 42 42 35 42 42 35 14 73 42 42 14 43 43 28 30 34 34 30 55 63 54 48 22 29 33 72 35 42 42 35 42 42 33 69 67 75 38 38[...]

Part No. 177780 R0801A Printed in Canada © 2001 Sears, Roebuck and Co. Model No. 831.159760 QUESTIONS? If you find that: • you need help assembling or operating the NordicT rack ® GRT 490 weight system • a part is missing • or you need to schedule repair service call our toll-free HELPLINE 1-800-736-6879 Monday–Saturday , 7 am–7 pm Cent[...]