Replace cap tightly after use. Store in a cool, dry place. Physical Education Balls Lubricate needle with Vaseline or light grease prior to insertion into valve. Inflate ball to recommended pressure as indicated on each ball. Projector Lamps Ensure lamp is correct type for equipment being used.
Ensure lamp is seated fully in the lamp holder.
Do not allow skin contact with lamp. If this has happened, clean with methyl hydrate before turning on lamp. Do not move projector when lamp is on. Even a slight shock can damage a hot lamp. Ensure that all the optical components of the projections system are kept clean to prolong the life of these components.