25
06
Operation
Operator’s Manual 2009 Rev B p/n 2009
Carry out initial operation under “no load”
conditions by opening all valves and venting the
discharge to atmosphere, if possible. Then, start
the motor briefly, listen for unusual noises, and
make sure the blower coasts freely to a stop. If
no problem appears, repeat this check and let the
motor run slightly longer. If any questions exist,
investigate before proceeding.
Assuming all tests are satisfactory, the blower will
now be ready for continuous full-load operation.
During the first several days, check periodically to
make sure all conditions remain acceptable and
steady. These checks may be particularly important
if the blower is part of a process system where
conditions may vary. At the first opportunity, stop
the blower and clean or remove the inlet filter.
Also, recheck leveling, coupling alignment or belt
tension, and mountlng bolts for tightness.
START-UP CHECKLIST
It is recommended that these start-up 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 is critical.
See Lubrication on page
14
.
See Recommended Lubricants on page 42
for information on acceptable
lubricants for the product.
Check the 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 (counterclockwise when facing the 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,
see Troubleshooting on page 38.
Apply the load and observe the operation of the unit for 1 hour.
If minor malfunctions occur, discontinue operation and
see Troubleshooting on page
38
.
