Castle LB-23 Diagnostics Manual - Manual (Page 30)

4. Remove the drill cover on the top of the machine by loosening the three-pronged knobs.
5. Locate the two 1/2" nylock nuts that secure the air bar that runs across the top of the air bladder.
6. Use a pointed file or a scribe to mark a reference line across the nylock nuts and the bolts they are
attached to. This line will be used as a reference mark for reassembling the air bladder assembly.
7. After scribing a clear line, use an open or boxend 1/2" wrench to remove the two nylock nuts.
VERY IMPORTANT: Count the number of turns from the scribed reference lines it takes to remove
the nuts. When reassembling, this count will be used to recalibrate the air bladder factory setting.
8. Remove the nylock nuts, but be careful to keep them in a way that they do not get mixed up. It's
important that the nuts go back on the bolts they came off of.
9. With the nylock nuts removed, you can lift the air bar off of the air bladder enough that it clears the
drill frame.
10. Turn the air bladder and the air bar counter-clockwise until you hear the SQE fall inside the
machine.
11. Reach inside the rear of the machine with one hand (or get assistance) and turn the air bladder
with the other until the SQE is fully unscrewed from the air intake for the bladder.
12. Disconnect the large air hose from the push-in fitting attached to the SQE and remove the SQE
from the rear of the machine.
13. Replace the SQE by following the above instructions in reverse.
Revised 2/9/2007