Nordson FP-200 - Diagnostic Operational Checks

Troubleshooting
6-7
Part 237478_03
E 2012 Nordson Corporation
Diagnostic Operational Checks
NOTE: This procedure is used to check for a clogged nozzle or a no‐flow
condition on H‐200 adjustable and CF‐200 wide pattern modules only. It is
not for use with reduced cavity modules. Refer to Table6‐1, Troubleshooting
Guide, for other adhesive no‐flow fault conditions.
Nozzle Operational Check
1. Relieve hydraulic pressure. Refer to the Relieving Hydraulic Pressure
procedure in Section3, Installation.
2. Ensure that the gun trigger safety is in the LOCKED position.
CAUTION: Take care not to drop swirl nozzles when removing the retaining
nut. Damage from dropping can cause the nozzle to produce an abnormal
pattern.
3. Loosen the nozzle retaining nut with a wrench, then remove the nozzle
and retaining nut with a gloved hand.
Figure 6‐3 Removing the Nozzle
4. Trigger the gun.
5. Slowly increase hydraulic and pneumatic pressure.
S Adhesive flows: nozzle clogged. Clean or replace.
S No adhesive flows: module or service block may be clogged. Return
to Table6‐1, Troubleshooting Guide, and review no‐flow fault
conditions.