StediFlo
t
57:1 Pump
15
Part 1601882-01
E
2012 Nordson Corporation
As Needed Maintenance
S
Flush the pump and system with a compatible flushing material.
S
Change the solvent fluid regularly.
S
Clean the exterior of the pump.
S
Check all system grounds regularly.
Troubleshooting
WARNING:
Allow only qualified personnel to perform the following tasks.
Follow the safety instructions in this document and all other related
documentation.
These troubleshooting procedures cover only the most common problems.
If you cannot solve a problem with the information given here, contact your
local Nordson representative for help.
General Troubleshooting
Refer to
Air Motor Troubleshooting
for problems specific to the air motor.
Problem
Possible Cause
Corrective Action
1. Pump fails to start or
stops while operating
and fails to restart
No compressed air supply, or air
pressure too low
Check the compressed air supply.
Adjust the air pressure as necessary.
Blockage in fluid system
Check for flow from each component
and hose, working from the spray
device to the pump, as follows: Shut
off the air to the pump and relieve the
hydraulic pressure. Break the
connection. Turn on the air to the
pump. If the pump starts, the
blockage is in the component or hose
after the broken connection.
Air motor or air valve defective
Rebuild or replace as necessary.
2. Pump strokes
irregularly when spray
gun is triggered
Air in hydraulic system
Purge air from system. Refer to
Flushing
Worn or clogged pump ball check
valve
Flush the system with a compatible
flushing material. If the problem
persists, rebuild the ball valves.
Worn packings
Replace the pump packings.
Continued...