1. It is recommended that the vacuum pump is located within a fume hood to prevent its exhaust from contaminating the work area.  If this is not possible, a hose should be attached the exhaust port and directed to a fume hood or suitable ventilation device.
2. For best operations, the diaphragm vacuum pump should be positioned lower than the device, which is being evacuated.  Hoses connecting the vacuum pump to the device should slope downward toward the vacuum pump.  This will minimize the possibility of solvent condensing and collecting inside the hose.
3. Diaphragm vacuum pumps are designed to pump vapors not liquids.  If liquid is allowed to enter the pump, damage may occur.  If excessive liquid is present at the vacuum pump inlet, a liquid trap should be installed between the vacuum pump and the device being evacuated.
4. Securely connect and clamp the vacuum hose to the vacuum pump inlet and to the device being evacuated.

OPERATION

Plug the power cord into the properly grounded electrical receptacle.

TDI Diaphragm vacuum pumps are intended to be powered from a switched receptacle.  Therefore, there is no power switch located on the pump and the pump will operate whenever the power plug is inserted into a "live" receptacle.

Never attempt to restart a diaphragm vacuum pump if vacuum is "locked" in the inlet side.  Failure to bleed off the vacuum could either prevent the motor from starting while under load or could result in high starting currents, which could cause a fuse or circuit breaker to open circuit.

SAFETY PRECAUTIONS

1. Do not disassemble the pump.  Contact TDI for assistance.
2. The pump should only be plugged into a grounded outlet.
3. Never operate the pump in areas where it can fall or be pulled into water or other liquids.
4. Never block any cooling air openings on the pump or motor.

MAINTENANCE

Since the diaphragm vacuum pump is oil free, very little maintenance is required.  However,  periodically the following should be preformed.

• Inspect the power cord for damage.
• Examine the vacuum hoses for chemical degradations, loose clamps and possible collapse under vacuum.
• Make sure no hoses are plugged or clogged.
• Remove any dirt or debris that might restrict cooling airflow.