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If the actions of Section 13.1 fail, or more likely if you weren't
watching or were too slow, then the telescope will be stopped by the
horizon limit switches. To get away from this proceed as follows:
- Switch telescope to engineering mode.
- Press the clear alarm button.
- Turn the key marked LIMITS NORM/OVERRIDE clockwise and keep it
turned whilst simultaneously
pressing whichever of the HA+, HA-, DEC+, DEC- buttons is required.
The telescope should now rise away from the limits.
The encoder readings for RA & Dec will probably be corrupted
entailing a fresh ZEROSET and CALIBRATE.