44
LOWER 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 lever 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.
(Step 2 only is done if the lever arm, center frame or crutch tips are replaced). With
the resistance at zero, remove the crutch tips and loosen the jam nuts on the arm stop
bolts. Adjust the stop bolts so that the ends extend about ¼” through the ear on the
center frame.
NOTICE:
BE CAREFUL NOT TO SCRATCH THE CHROME ON
THE BACK OF THE LEVER ARM WHEN RESTING IT AGAINST THE STOP
BOLTS.
3.
Loosen the jam nuts on the cylinder rods. Adjust the cylinder rods so there is about
1/8 inch between the back of the lever arm and the stop bolts when cylinders are fully
extended (pg. 13 maintenance manual). Tighten the jam nuts and replace the crutch
tips.
4.
Increase the resistance slightly and check to see if the lever arm is applying an equal
amount of pressure to each of the crutch tips. Adjust the stop bolts if the lever arm
doesn’t apply equal pressure and make sure the jam nuts are tight before replacing
crutch tips.
Summary of Contents for Keiser 300
Page 1: ...Keiser 300 Air 300 Parts and Maintenance Manual...
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