AEC VacTrac Series Conveying Systems - Manual (Page 109)

VacTrac™ Series Conveying Systems Page 109
Mechanical Components WH2-605A.4
Problem Possible cause Solution
Vacuum line problem.
Disconnect the vacuum line at
the first vacuum hopper and
block it off. The vacuum here
should equal the vacuum at the
blower. Allow a few seconds for
vacuum to build. If the vacuum
here is low, disconnect the
piping halfway to the first
vacuum hopper and check the
vacuum there. If proper vacuum
exists, the problem is upstream.
If not, work backward to isolate
the vacuum loss.
Pump package blower problem.
Use a cfm/cfh monitoring device
to ensure that blower cfm/cfh is
to the manufacturer’s
specifications.
(Cont’d.)
• Tighten loose pipe couplers;
replace worn gaskets as
needed.
• Replace any damaged piping
found.
Vacuum conveying rate is
declining due to a vacuum loss
in the system.
(Cont’d.)
Leaks in vacuum lines between
valves. Check for leaks as described in
previous steps.