Shot Blasting
MODEL 1-8DEZ BLASTER
SECTION 11
TROUBLESHOOTING
50
OPERATING MANUAL
JUNE 2007
Trouble
Possible Cause
Remedy
Excessive vibration -
usually indicates that the
blast wheel is out of
balance. This condition
will eventually cause
bearing failure in the
motor or bearing unit.
a.
Unevenly worn wheel.
b.
Chipped, broken
blades.
c.
Wheel not seated
correctly on drive hub
a.
Replace wheel kit. Check
separator and ventilation system.
b.
Chipped or broken blades will
permanently unbalance the blast
wheel and can cause damage to
other components. Change
wheel kit immediately.
c.
Reinstall blast wheel
Excessive noise - usually
indicates misaligned
components which
causes premature wear
and component failure.
a.
Improper clearances
or alignments between
rotating parts, usually
the control cage and the
blast wheel.
a.
Check alignment of control
cage and wheel. Allow sufficient
clearance between rotating parts.
Excessive wear on blast
housing rebound
chamber/liners.
a.
Improper setting of
control cage.
a.
Abrasive is being misdirected
into internal components instead
of work area. Check blast pattern
and readjust.
Abrasive leakage.
a.
Improper sealing.
b.
Feed spout
c.
Improper control cage
setting.
d.
Abrasive valve setting
a.
Check all seals for wear and
proper height setting.
b.
Check feed spout alignment
and rubber seal.
c.
Abrasive rebounding from side
of machine. Check blast pattern.
d.
Be sure abrasive valve closes
when handle is released.
Readjust if necessary.
11.1` BLAST UNIT – MECHANICAL TROUBLESHOOTING
WARNING: All operators and maintenance personnel should
read and understand all of the operating instructions prior to
operating or maintaining the 1-8DEZ. Failure to adhere to
these recommendations could result in equipment damage,
serious injury, or death.
