2. Specifications LIFE FITNESS Signature Series Owner’s Manual
2-2
7. Top Weight Bushings
• The top weight is stabilized with an engineered composite structure with self-
lubricating bushings.
8. Weight Stack Guide Rods
• Guide rods are ¾” cold drawn steel, turned ground and polished with hard chrome
finish
9. Weight Stack Suspension
• Durable rubber bumpers are placed under each stack to reduce shock and vibration
stresses to the frame and facility floor.
10. Weight Selection Shaft
• The shaft is constructed of zinc plated cold finished steel and precision drilled for
accurate pin selection
11. Weight Transport
• 7x19 construction, 3/16” galvanized steel, internally lubricated, nylon-coated aircraft
cable with breaking strength rated at over 4,000 pounds.
12. Cable Adjustment
• All cables can be adjusted at the top weight utilizing a metric 24mm open-end
wrench.
13. Weight Stack Guards
• All weight stacks are fully guarded on the front and backside to prevent bystanders
from inadvertent contact with the weight stack during use.
14. Pulleys
• All pulleys are at least 4-1/4” working diameter using fiberglass-impregnated nylon
with precision fit cable groove and double sealed bearings.
15. Pulley Covers
• As a safety precaution, all pulleys are covered to minimize the danger of a moving
pulley catching a person’s finger or clothes.
16. Cams
• All cams are CNC machined from solid polymer and individually designed for each
unit to match the appropriate muscle strength capability curve
17. Counter Balanced Input Arms
• Input arms on equipment are counter balanced where appropriate to eliminate the
weight of the assembly from the weight selected by the user