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Keiser 300 - Arm Lock Shaft Servicing; Removing the Exercise Arm Lock Shaft; Replacing the Exercise Arm Lock Shaft

Keiser 300
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20
REMOVING THE SHAFT:
1. Pry off the plastic cap covering the locking sleeve and spring pin. On the Seated
Chest Press and Upper Back, this is the middle of the three square tubes. On the
Military Press and Tricep, it is the outside tube. This cap must be replaced with a new
part. NOTICE: BE CAREFUL NOT TO SCRATCH THE CHROME.
2. Pry off the white plastic locking sleeve with a screwdriver.
3. Using a 5/16 drift punch, drive the spring through and out of the shaft. The shaft and
spring pin can now be removed.
REPLACING THE SHAFT:
4. Put the shaft back into holes in the exercise arms.
5. Drive the spring pin through the shaft until it is just flush with the side of the shaft
facing you.
6. Push the locking sleeve over the shaft.
7. Using a rubber mallet or block of wood and hammer, drive a new plastic cap into the
end of the square tube.

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