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6.2 START-UP CHECKLIST
We recommend that these startup procedures be followed in sequence and checked off (
) in the
boxes provided in any of the following cases:
• During initial installation
• After any shutdown period
• After maintenance work has been performed
• After blower has been moved to a new location
DATES CHECKED:
Check the unit for proper lubrication. Proper oil level cannot be over-emphasized.
Refer to the
Lubrication
section. Please see
Recommended Lubricants
for information
on acceptable lubricants for your product.
Check V-belt drive for proper belt alignment and tension.
Carefully turn the rotors by hand to be certain they do not bind.
WARNING
Disconnect power. Make certain power is off and locked out before touching
any rotating element of the blower, motor, or drive components.
“Bump” the unit with the motor to check rotation (counter-clockwise [CCW] when
facing shaft) and to be certain it turns freely and smoothly.
Start the unit and operate it for 30 minutes at no load. During this time, feel the
cylinder for hot spots. If minor hot spots occur, refer to the
Troubleshooting
chart.
Apply the load and observe the operation of the unit for one hour.
If minor malfunctions occur, discontinue operation and refer to the
Troubleshooting
chart.
6.3 OPERATING
The upper temperature limit for blower operation is 445° F (229° C)
measured in the exhaust gas stream
with a low mass thermocouple. When this temperature limit switch is installed, as the temperature exceeds
the predetermined temperature, the blower motor will stop and cannot be restarted until the temperature
drops below the trip setting of the temperature switch.
DANGER
The blower is not intended to be used with explosive products or in explosive
environments.
WARNING
Physical harm may occur if human body parts are in contact or exposed to
the process vacuum. Assure that all connections are protected from human
contact.
WARNING
If rated vacuum or pressure levels are exceeded, process fl uids will migrate
to other parts of the blower and system.