Nordson VersaBlue VBN 50 Manual page 53

Melter part
Gear pump
Motor / gear box
Pressure control valve
Filter cartridge
Safety valve plate
Tank isolation valve
Pneumatic safety valve
Pressure sensor
E 2008 Nordson Corporation
Activity
When present: Replace
VarisealR
When present: Retighten
gland
Check for leakage
(When present:
Retighten gland if
necessary)
Retighten fixing screws
Change lubricant
Clean fan cover
Replace outer O-rings
(service kit)
Disassemble and clean
Replace filter cartridge
Disassemble and clean
filter cartridge
Replace O-rings (service
kit)
Replace O-ring (service
kit)
Performance check;
clean or replace if
necessary
Calibrate
Check separating
membrane for damage
Check whether
hardened or charred
material is stuck to the
membrane; clean
separating membrane if
necessary
VBN w/o Control System
Interval
When material escapes from the
pump shaft
After initial startup
Dependent on hours of
operation, pump speed and
pump temperature
Recommendation: Monthly
Every 500 hours of operation
Every 15 000 hours of operation
or every 2 to 3 years
Depending on dust
accumulation; daily if necessary
At the latest when leakage
occurs
Every six months
Depending on degree of material
pollution
Recommendation: Every 1000
hours of operation
When the safety valve plate is
detached, at the latest when
leakage occurs
When the tank isolation valve is
detached, at the latest when
leakage occurs
Every six months
Once/year, more often when
conditions dictate
Every time pressure sensor is
removed, more frequently if
necessary
Every time pressure sensor is
removed, more frequently if
necessary
5-3
Maintenance
Refer to
5-9
5-10
5-10
5-10
5-11
−
5-12
Section Parts
5-14
5-17
5-18
5-19
Section
Operation
−
5-20
P/N 7146386A