National Vacuum Equipment 5314, Owner'S Manual & Operating Instructions, Page: 14 / 36

14 | 5314 Blower
www.natvac.com | 800.253.5500
Limitations on Use
Limitation on Use Reason for Limitation and/
or Risk
Corrective Actions
Operation of the blower in
an explosive environment
Fire and/or explosion can
result
DO NOT USE
Using blower to move
explosive, toxic or dangerous
gases
Fire and/or explosion can
result
Pollution of the environment
Health risks to operators
Liquid drawn into blower
intake
Blower seizure, damage to
blower and ejection of parts
Install a moisture trap or cy-
clonic separator on the intake
nozzle of the blower.
Operation with the exhaust
or ballast blocked off.
Overheating Remove the blockage and
minimize restriction in the
exhaust or ballast circuits
Rotating blower in wrong
direction
Damage to blower Change the direction of
rotation of the drive or order
correct rotation of blower.
Operating in excess of rec-
ommended speed
Seizure of blower, damage to
blower and ejection of parts Operate the blower within
recommended speed range
Operating blower below
minimum speed
Seizure of blower, damage to
blower and ejection of parts
Exceeding the maximum
pressure rise from blower
inlet to outlet
Overheat of Blower
Fire
Seizure of blower, damage to
blower and ejection of parts
Check inlet and exhaust
restrictions and reduce as
necessary.
Operating at excessively hot
inlet or ballast temperatures
Overheating
Fire
Seizure of Blower, damage to
blower and ejection of parts
Monitor the inlet tempera-
ture and make corrections to
the system to bring tempera-
ture within limits.
Operating at excessively cold
inlet temperatures.
Seizure of Blower, damage to
blower and ejection of parts
Review precautions in cold
weather conditions. Use
recommended lubrication.
Operating above the exhaust
temperature upper limit
Overheating
Fire
Seizure of Blower, damage to
blower and ejection of parts
Reduce the vacuum level in
high ambient conditions.
Reduce the blower speed.
Remove restrictions in the
intake and exhaust circuits.
Operating in excess of the
specified temperature rise
across the blower
Seizure of Blower, damage to
blower and ejection of parts
Reduce the vacuum or pres-
sure level to bring within
limits.