PIAB C 1200 Series, Troubleshooting Manual

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VACUUM CONVEYORS
25
TROUBLE SHOOTING GUIDE: PIAB L SERIES PUMP
Problem Possible Causes Possible Solutions
Pump will not turn on X On/Off knob safety clip has not been
removed·Ball valve found next to regulator
is in the closed position
X No compressed air available
X Check to be sure safety clip has been
removed and on/off knob is functioning
properly
X Be sure ball valve is turned so handle is
inline with compressed air line
X Problem with plant compressor or feed
lines, call maintenance
Low vacuum level observed on the pump gauge
X
Compressed air being fed to the pump is not
at high enough pressure
X
Not enough volume of compressed air get-
ting to the pump
X
On/Off knob is not fully in on position
restricting air flow
X
Ball valve is not open 100% and is restricting
air flow
X
Pump is not seated properly on the module
seal
X
Module seal is torn or caked with material
causing a leakage point
X
A Plug used on connections for tubing going
to control unit is loose or missing
X
Leakage is being caused due to the surface
the seal/pump/cover unit was placed on
being dirty, rough, or uneven.
X
Something is damaged inside the pump.
Pump is clogged with material, ejector noz-
zles have been damaged, or seals and gaskets
need to replaced.
X
Read pressure level on the regulator gauge
while pump is running, if too low adjust
regulator dial until desired pressure of
87psi is reached
X
If 87psi cannot be reached on the regulator,
there is not enough volume of air to feed
the pump. Make sure compressed air line
diameter is the proper size and increase if
too small. If diameter correct or larger,
than you need to live with the problem, use
a smaller size pump requiring less air, or
shut off other machinery using air so vol-
ume to pump will increase
X
Make sure On/Off knob is pushed com-
pletely in against the pump face
X
Adjust ball valve so it allows full volume
of air to flow through compressed air line
(align handle w/ compressed air line)
X
Adjust pump/cover unit so it is properly
seated on the seal
X
Inspect seal for any tears, worn spots, or
excess material buildup. Clean or replace
as necessary.
X
Check 6mm, 8mm, and 12mm plugs used
on air manifold block. Make sure all plugs
are present and are pushed securely into the
fittings (especially the 12mm plug, you
must push very hard to get this plug
entirely into the fitting). Insert any missing
plugs
X
Clean away debris if possible or find a new
smooth even surface to place seal/pump/
cover unit onto
X
All possible problems listed above have
been checked and found to be correct.
Problem is internal to pump, call mainte-
nance
Pump will not shut off X On/off Knob is not fully in off position
allowing air to bleed into pump
X Something is damaged inside the pump not
allowing internal shuttle valve to function
properly
X Make sure on/off knob is pulled completely
out, into the off position
X On/off knob is pulled completely out, in
the off position and pump continues to run.
Problem is internal to the pump, call main-
tenance