STP Series Turbomolecular Pump 
 
INSTALLATION OF THE STP 
PUMP 
 
2.3  How to install the STP pump 
Install the STP pump to the vacuum equipment as shown in Figure 14. 
WARNING 
 
An appropriate enclosure or a barrier which cannot be removed without using a tool 
should be provided to prevent an operator from accessing the connection cables 
between the STP pump and its connectors provided. 
WARNING 
 
When installing the STP pump and connecting/disconnecting cables, always power 
off the primary power (switch the MAIN POWER to "OFF") and isolate 
(Lockout/Tagout) the electrical energy source, water and gas, and other energy 
sources on the vacuum equipment. Failure to do so may result in the inadvertent 
rotation of the STP pump which may result in an accident, an electric shock or 
damage to equipment. 
Moreover, an accident caused by water leaks or gas leak may occur. 
WARNING 
 
DO NOT remove the connecter while the pump is rotating. The voltage might be 
output to connector according to the rotational speed, and it causes the electric 
shock or the failure. 
CAUTION 
 
Use a lifter or the like when installing the STP pump to the vacuum equipment. Failure to do so 
might hurt your back or cause injuries due to occurrence of an accident such as fall. 
 
A supportive device such as lifter to installing the STP pump should withstand the load of five times 
or more the weight of the STP pump.