Operation
2-2
2-2
SHUTDOWN PROCEDURE
a
Turn off the power to the diffusion pump. Continue to back the diffusion pump with the appro-
priate mechanical pump.
b
Allow cooling water to flow through the diffusion pump until the pump body temperature,
located just above the boiler plate, has cooled to a temperature of 130°F.
c
After isolating the backing pump, the diffusion pump may be vented to atmosphere.
d
If faster cooling is desired, the pump can be cooled using the quick cool coil at the bottom of
the diffusion pump. Follow the instructions in para. 1-3-3 for proper setup of the quick cool coil
line. The same procedure for shutdown can be followed.
