Goff 2460, Operation And Maintenance Manual

Page: 99 / 105

TROUBLE SHOOTING
MALFUNCTION
CAUSE
SUGGESTED REMEDY
CABINET AND BLAST WHEEL
EXCESSIVE
I .
Unevenly worn blades
I .
Replace blades with a new complete
VIBRATION
set. Check separator adjustment.
Inadequate contaminant removal could
cause blades to wear faster
2.
Chipped or broken blades.
2.
Usually caused by abrasive rebound
action. Replace blades with complete
new set. If frequent chipping or
breakage is noted, your abrasive
mixture may be too large for your
needs. A smaller size mixture could be
more economical and just as effective.
3. Improperly mounted blast
3.
Blast wheel unit should not wobble or
wheel.
vibrate excessively. Unit should be
tightened down even!
)
.
If
blast wheel
unit develops severe leakage or wear
holes in housing, unit may need
replacement.
EXCESSIVE NOISE
I .
Improper clearance
1.
Check alignment and mounting of
between the rotating parts.
rotating parts. Patis should not be
allowed to knock against each other
during rotation.
2.
Abrasive size.
2.
Be sure to use the abrasive mixture that
best meets your needs, provides good
blast coverage, quieter operation, and
more efficient cleaning or shot peening.
3.
Loose bolts or set screws
3.
Check base plates, motor bearings,
housings and sheaves. Make certain all
components are firmly secured. Check
belt tension.
4.
Defective bearing. 4.
Check all bearings (motor & drive), a
smooth free rotation should exist.
Replace worn or defective bearings.
Lubricate motor bearings if necessary.
DO NOT OVER LUBRICATE
INCREASED
I .
Improper abrasive feed to
I . If
ammeter indicates a lower ampere
CLEANING TIME
blast wheel.
reading than the normal full load
rating:
- reduces efficiency
a.
Check storage hopper and add
of equipment
abrasive if level is low.
7-2 1