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UPPER BACK
CYLINDER ADJUSTMENT
NOTICE: CYLINDERS ARE FACTORY-ADJUSTED AND REQUIRE NO
FURTHER ADJUSTMENT UNLESS THEY ARE REPLACED. Please contact
KEISER if you have any questions concerning adjustments or repairs.
1. Check the condition of the rubber crutch tips that the exercise arms rest against.
These must not be worn or damaged in any way. If they are worn replace them
before attempting to adjust a cylinder.
2. Make sure the right cylinder is not bottomed-out against the end housing. A
bottomed-out cylinder will feel sticky or hesitant at the beginning of the stroke. If the
piston is bottomed-out lengthen the rod three full turns (pg. 13 maintenance manual).
3. Increase the resistance slightly (to about 20 lbs. ) and check the action of the arm lock
shaft. Adjust the left cylinder to allow the arm lock to work smoothly. Increase the
resistance another 80 lbs. And check or adjust the arm lock again. The cylinders are
adjusted correctly when the arm lock works smoothly at all resistances.
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