National Vacuum Equipment 5314 Owner's Manual & Operating Instructions - page 33
5314 Blower | 33
www.natvac.com | 800.253.5500
Probable Cause
Remedy
A
Rotors are contacting each other
Stop the blower immediately and check the internal
clearances of the blower.
B
Deposit build up on cylinder wall
Clean the cylinder walls and rotors.
C
Object was ingested into the blower
Remove the object, clean the internal walls of
blower and check the internal clearances.
D
Inlet plumbing or filter clogged
Check and clean the inlet plumbing and filter.
E
Blower not at correct RPM
Verify blower RPM and adjust accordingly.
F
Exhaust plumbing clogged
Clean exhaust plumbing and mufflers.
G
Rotors are worn
Verify internal clearances and replace or rebuild
blower as necessary.
H
Ballast plumbing is clogged
Check and clean the ballast plumbing. If a
ballast filter is installed, clean it also.
J
Ballast air temperature out of
specification
Verify ballast air temperature is within
specification and adjust accordingly
K
Inlet temperature out of specification
Verify inlet temperature is within specification and
adjust accordingly
L
Bearings worn
Have blower rebuilt
M
Oil level too high
Check required oil level in each tank and
remover oil as necessary.
N
Coupler or belts not aligned
Check the alignment
P
Oil tank gaskets worn
Replace oil tank gaskets
R
Drive shaft seal worn
Replace shaft seal for drive oil tank
S
Oil tank plugs or sight eyes fault
Replace the plugs or sight eyes. Use thread sealer
on NPT threads.
T
Blower operated at excessive angle
Verify blower is level during operation
U
Oil too thick
Use correct viscosity oil.
V
Oil is foaming
Use correct type of oil
W
Operating Diesel engine at too low of
an RPM causing rotor contact.
Increase Engine RPM and adjust drive ratios
according. Use a vibration dampened drive shaft.
X
Moisture trap or shut off is full and
closed off
Empty the moisture trap or shut off of fluid.
Y
Plugged or collapsed hose (not always
visible from outside of hose)
Unplug or replace hoses
Z
Vacuum Leaks in tank or fittings
Repair leaks
AA
Four way valve not fully seated in
proper position
Seat the 4-way valve. Clean if debris built up has
occurred.
AB
Faulty relief valve
Replace relief valve
AC
Rotors timing is off
Have blower rebuilt