Creative Engineering ROCK-A-FIRE EXPLOSION - Page 118

Props and Looney Bird
I. The Baby Bear or Cub Mechanism:
1. (See Drawing Page 3-092) For any problems in the cylinder,
refer to Pages 3-009 thru 3-011, and all drawings referred
to by that text. To remove the cylinder, pull out the
Fas-Pin rear mount (A), and unbolt the front mount. When
replacing the cylinder, tighten the front mount bolt (B)
firmly.
2. (See Drawing Page 3-092) There are two 3/8" Pillow Blocks
(C) used in the assembly. They may wear out and lose ball
bearings, if they are not greased properly in P.M. To
replace a bad Pillow Block (C):
a. Loosen the jam nut (D) and remove the locking nut (E) on
the guide shaft. Remove the guide shaft from the
assembly.
b. Loosen the screws holding the Pillow Block (C) into
place.
c. Remove the bad Pillow Block and attach the new Pillow
Block, in one step. Do not tighten the Pillow Block into
place. This allows you to make the repair without
removing the mechanism from the platform.
d. Place the guide shaft back into the assembly.
Tighten the Pillow Block and guide shaft into place.
Actuate the movement and check for a smooth and easy
function.
3. (See Drawing Page 3-092) There are two springs used in the
Cub mechanism. If the spring (F) breaks replace it, simply
remove the old and place back in the new. If the spring (G)
or the Universal Joint (H) breaks:
a. Loosen the two 2 Piece Locking Collars (I) and remove
the broken part or parts.
b. Reassemble the mechanism using the new parts, and tighten
the Locking Collars (I).
c. Refer to Pages 3-094 thru 3-135 and check the Critical
Adjustments.
4. If removal of the mechanism from the platform is required,
place it back in the platform in the same placement as
before, or as close as possible.