Coin Slot's Guide to Paces Races 7
Power Plant
The game being of a pneumatic type, it is necessary tounderstand the principles of pneumatics so that if trouble arises, you can adjust quickly and efficiently.
The BELLOWS to which are attached the CONNECTING RODS, we call the POWER PLANT. This, when operating, sucks out the air, creating a vacuum. On rear of power plant you will note vacuum SPILL-VALVE. This valve when adiusted, regulates the amount of vacuum retained in the power plant. Excess power is released through this valve. Game requires 25 to 30 inches of vacuum. A gauge can be furnished for testing purposes. For more vacuum or power tighten tension of spring by TURNING nuts in. For less vacuum release tension on spring by TURNING nuts out. It is well to know that leaks in the vacuum lines will seldom occur as vacuum is a natural sealer and differs from air pressure in this respect. The connecting rod and crank shaft bearings should be lubricated with oil. Just a little now and then.