Marco Blastmaster 950 CFM, Operator'S Manual

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Blastmaster
®
950 CFM Air Dryer
27
Always depressurize the
entire blasting 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.
If the Blastmaster
®
950 CFM Air Dryer does not function properly, check the following:
TROUBLESHOOTING
SYMPTOM (Cause) ACTION
Fan Blades not turning
(Improper air supply, Obstruction,
Damaged components, Lack of
lubricant, Muffler obstructed or
fouled)
Check air supply to air motor - confirm supply air is
on and set to 85 psi.
Clear any obstructions from fan blades.
Inspect fan blades for damage. Replace damaged
components.
Test fan blades for free movement. If air motor
does not move, repair or replace air motor.
Clear any obstructions from exhaust muffler.
Replace muffler if fouled.
Fan Blades turning slowly
(Improper air supply, Obstruction,
Damaged components, Lack of
lubricant, Muffler obstructed or
fouled)
Check air supply to air motor - confirm supply air is
on and set to 85 psi.
Clear any obstructions from fan blades.
Inspect fan blades for damage. Replace damaged
components.
Test fan blades for free movement. If air motor
moves, but not freely (see Operating Instructions),
confirm lubricator is working properly, introduce
some lubricant directly into air motor intake,
rotate fan blades 3 to 4 complete rotations, then
test again. If blades do not move freely, repair or
replace air motor.
Clear any obstructions from exhaust muffler.
Replace muffler if fouled.
Inlet Filter/Tank not draining
collected moisture
(Damaged components, Obstruction)
Inspect drain valve for damage. Replace damaged
components.
Inspect drain valve for visible obstruction. Clear
obstruction.
If no damage or visible obstructions are found,
disassemble drain pipe string, inspecting for
internal obstructions. With pipe string removed
from tank, examine attachment point for debris or
obstructions.
Clean Aftercooler Core.
Ensure tank contains Desiccant. Load tank. See
Load Instructions.
Check that desiccant tablets move freely. Moisture
can cause desiccant to fuse together, preventing
collected moisture from draining.
Pneumatic