SC_450 PreciseCoat Conformal Coating Jet_Rev_04.pdf - 第45页
SC-450 PreciseCoat C onformal C oating J et Maintenance and Service © 2024 Nordson Corporation 39 11. Ensure that t he flange is b elow the interna l threads of the valve body (Figure 5-16). Item Description 1 Internal T…
SC-450 PreciseCoat Conformal Coating Jet Maintenance and Service
38 © 2024 Nordson Corporation
4. Line up the needle with the seal (Figure 5-15A).
5. Slide the needle through the bearings and slide the insertion tool base into the valve body.
6. Hand-tighten the base until it stops against the valve body.
7. Line up the installation pin with the hole in the top of the base (Figure 5-15A).
8. Push the pin all the way into the base (Figure 5-15B).
9. Remove the pin (Figure 5-15C).
10. Unscrew and remove the base from the valve body (Figure 5-15C).
Figure
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A
Figure
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B
Figure
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C
Figure
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Detaching the Needle from the Insertion Tool Base
SC-450 PreciseCoat Conformal Coating Jet Maintenance and Service
© 2024 Nordson Corporation 39
11. Ensure that the flange is below the internal threads of the valve body (Figure 5-16).
Item Description
1 Internal Threads
2 Flange
Figure 5-16 Needle and Flange Fully Seated
12. Install the stroke adjustment assembly, see 5.7.4 Replacing the Stroke Adjustment
Assembly.
13. Install the heater insulation, see 5.7.2 Replacing Heater Insulation and Interconnect PCA.
14. Install the heater assembly and fluid body, see 5.7.1 Removing and Replacing the Heater
Assembly, Fluid Body, and Fluid Seal.
15. Install the fluid needle, see 3.6 Installing the Fluid Needle.
16. Install the SC-450 to the coating system, see 3.4 Installing the SC-450 PreciseCoat Jet.
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© 2024 Nordson Corporation 40
6 Troubleshooting
6.1 Overview
To quickly identify problems, look for obvious signs such as burnt, missing, damaged, or loose parts, as
well as obstructions and spills. Recurring problems indicate there may be other root causes. Table 6-1
through Table 6-3 identify troubleshooting symptoms, recovery procedures, hierarchy, and setup
variables. These procedures cover only the most common problems that you may encounter. If you
cannot solve the problem with the information given here, contact Technical Support.
?
NOTE
Refer to the EasyCoat User Guide or EasyCoat Help for recovery procedures pertaining
to EasyCoat.
6.2 Safety First
Operation of your SC-450 PreciseCoat Jet involves air pressure, electrical power, mechanical devices,
and the use of hazardous materials, and sometimes may involve heat. It is essential that every person
servicing the dispensing system or components fully understands all hazards, risks, and safety
precautions. See Section 2 - Safety for additional information.
WARNING!
Allow only qualified personnel to perform the following tasks. Follow the safety
instructions in this document and all other related documentation.
WARNING!
Ensure the fluid system is completely depressurized prior to loosening any fittings
in the fluid path. Failure to do so may cause serious injury to personnel.
WARNING!
DO NOT hot swap connections when working with electrical and pneumatic power
supplies. Turn the main circuit breaker off before disconnecting the external power
plug from the facility.