Troubleshooting
6-6
E 1999 Nordson Corporation
All rights reserved
104 330H
Issued 8/99
Manual 1-8
Priming Problems
Priming problems can be caused by restrictions in the siphon filter,
hoses, or rod, as well as by suction lift losses due to the pump being
elevated above the material supply. The easiest way to solve these
problems is by immersing the pump intake in the material supply, or by
using a pressurized supply system. Other methods of minimizing
restrictions on the suction side of a pump include:
S Use as large an ID siphon hose as practical.
S Use the shortest siphon hose as practical.
S Keep the siphon filter clean, or eliminating it when using very viscous
materials.
S Elevate the material supply, above the pump if possible.
S Immerse the pump inlet (use a bucket or drum mount kits).
S Use ram (elevator) mounted pumps, inductor plates, or
follower plates.
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