LifeFitness LBR-AC Assembly Instructions Manual page 16

Abdominal crunch bench
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10. Attach the weight horn assembly to the work arm assembly, then tighten hardware to 20-25 ft-lbs (27-34 Nm)..
11. Install the head pad and 18 X 19 pad onto the work arm assembly, then tighten hardware to 40-50 in-lbs (4.5-5.6
Nm).
12. Install the back pad onto the back support assembly, then tighten hardware to 40-50 in-lbs (4.5-5.6 Nm).
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Page 14 of 21
Description
Work Arm Assembly
Weight Horn Assembly
3/8 Washer
M10 x 1.5 x 20mm Screw
Description
M10 x 1.5 x 70mm Screw
CM/MJ Retainer
1-1/4 OD x 1/4 Spacer
Head Pad
18 X 19 Pad
Work Arm Assembly
3/8 Washer
M10 x 1.5 x 25mm Screw
Description
M10 x 1.5 x 100mm Screw
CM/MJ Retainer
1-1/4 OD x 1/4 Spacer
Back Pad
Qty.
1
1
2
2
Qty.
2
2
2
1
1
1
2
2
Qty.
3
3
3
1

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