3. Remove the loops of the left and right coil return springs (50-3-6) from the left
and right coil return spring pins (50-3-7).
CAUTION:
These springs are under
considerable tension and should be handled carefully.
4. Loosen both left and right coil return spring screws (50-3-8) and remove the
springs from the arm bar (50-3-3).
5. Twist a piece of flexible wire around the actuating arm cross head (50-3-2)
and the actuating pawl (50-3-10). Pull the actuating pawl far enough toward
the cross head, so that it clears the wheels. Take care not to damage your
fingers.
6. Remove the three machine screws that hold the retaining pawl spring (50-3-
25). Mark the outside of the spring before removing it.
7. It is not necessary to remove the pawl block (50-3-23) in order to remove the
wheels.
8. Remove both wheel shaft set screws. Pull the retaining pawls (50-3-21) away
from the wheels.
9. Slowly push the wheel shaft (50-3-18) out of the frame (50-3-1). Take care
not to drop the wheels or the actuating arm. Maintain the original wheel order
for proper assembly. The actuating arms should be treated with care. If it is
twisted, re-assembly may not be possible.
Removing the Pawl Block (50-3-23)
1. Remove the two pawl block screws (50-3-24). The pawl block (50-3-23)
should lift out. The pawl block fits tightly in the frame and it may be necessary
to tap it. Care should be taken not to bend the retaining pawls (50-3-21) or the
retaining pawl shaft (50-3-22).
2. If the retaining pawls are to be removed, maintain the original order for re-
assembly.
Removing the Actuating Pawl (50-3-10)
1. While holding the actuating pawl (50-3-10) to keep it from rotating, remove
the twisted wire.
2. Allow the actuating pawl to slowly rotate, relieving spring torque, until it strikes
the cross head.
3. Unscrew the actuating pawl shaft (50-3-9) from the arm, while holding the
actuating pawl spring (50-3-17) above and below with two fingers. Remove
Revision # 2.0
