Keiser Keiser 300, Parts And Maintenance Manual

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14
CYLINDERS
Three types of cylinders are used on K300 series machines:
2 ½ “ x 7” = Part #:11-5317
2 ½ “ x 12”= Part #:13-5316
4” x 12”= Part #:15-5314
Maintenance procedures are the same for all three types of cylinders.
TOOLS REQUIRED: adjustable wrench, 5/16 or ¼ inch allen wrench and an oil can.
REMOVAL:
1. Unplug the quick-disconnect from the air system and reduce the resistance to zero.
2. Remove the air hose from the cylinder. It is best to remove one cylinder at a time. If
both cylinders must be removed, mark the cylinders and air lines to avoid mistakes in
re-assembly.
3. Remove the nuts and bolts holding the cylinder and clevis. Check the bearings in the
tang end of the cylinder and the lever arm. If they are loose or worn, they must be
replaced.