Loctite 98084, Operation Manual

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5. Maintenance and Cleaning (continued)
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PN 98084
SN XXXX
Dispense Tip
1A
Figure 5.
Type of Malfunction Possible Cause Correction
No material flow. – Material pressure too low. • Increase material pressure.
– Valve air pressure too low. • Increase valve air pressure to 60 psi.
– Material cured or clogged in valve. • Clean valve.
– Material cured or clogged in • Replace dispense needle.
dispense needle.
– End cap fully closed. • Turn end cap counterclockwise.
– The valve needle retaining cap • Tighten the retaining cap.
may not have been tightened
enough to unseat the valve needle
rod from the secondary Teflon
® seal.
Inconsistent material flow. – Inconsistent valve air pressure. • Insure that air supply is set at 60 psi.
– Length of actuation too short. • Adjust time.
– Check for curing in dispense needle. • Replace valve needle rod.
Steady drip. – Cured material on valve needle rod. • Clean or replace valve needle rod.
– Worn seat. • Replace dispense needle.
– Worn valve needle rod. • Replace valve needle rod.
6. Troubleshooting
5.2.1 Connecting the Airline and Product Feed Line