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243_MasterPieces_04b.qxd 4/18/03 7:08 PM Page 204

204 Masterpiece 4 • PneumADDic II

Pump Step 2

Be careful to align the gears and pumps exactly
as shown. This ensures that no two pumps will be
able to simultaneously compress.

NOTE
Notice that the springs have been removed from the large pumps. This reduces
the effort needed by the motors to compress the pumps.

Pump Step 3

Rotate the model so you are
now looking at the opposite side.
Attach the various parts as shown.