Result In Death Or Serious Injury - Marco BLASTMASTER 121P Operator's Manual

Always depressurize
the entire system,
disconnect all power
sources and lockout/
tagout all components
before any maintenance
or troubleshooting is
attempted. Failure to
comply with the above
warning could cause
electrical shock and
inadvertent activation of
equipment resulting in
death or serious injury.
Do not cut, obstruct,
restrict or pinch
pneumatic twinline
or single line hoses.
Doing so could prevent
the proper activation
and deactivation of the
remote control system,
resulting in the release of
high speed abrasive and
compressed air. Failure
to comply with the above
warning could result in
death or serious injury.
TROUBLESHOOTING
SYMPTOM (Cause)
Blast pot will not depressurize
or
depressurizes slowly
(
Damaged components, Pneumatic
control line, obstruction in system
)
exhaust
ACTION
Inspect pneumatic control line for correct
routing, air leaks, blockage or pinch points.
Tighten control line fittings if leaks are
present. Replace damaged pneumatic
control lines.
Ensure Control Air Fitting on lower portion of
Inlet Valve is not full port. Replace
immediately with 1/16" orifice restrictor fitting.
Clean Abrasive Trap and Abrasive Trap
Screen.
Ensure pneumatic control line connections to
Inlet Valve and Outlet Valve are secure and
do not leak. Replace immediately pneumatic
control lines if damaged.
Inspect Inlet Valve, Outlet Valve, and
Abrasive Trap. Replace damaged
components immediately.
Refer to Operator's Manual for the remote
control switch and blast pot.
Blastmaster 121P Remote Control System
®
20