Maintenance and Service
27
4.6
Rebuilding the Film Coater
CAUTION!
Handle O-rings and seals carefully. If O-rings or seals are damaged, leakage or
premature film coater failure may occur.
CAUTION!
Protect the solenoid valve from contact with coating material or solvent.
Contamination could cause solenoid failure.
4.6.1 Installing the U-Cup and Seals
To install the U-cup and seals:
1. Hold the upper-body module piston side down. Place the U-cup (with the side containing the
spring up) into the upper-body module. Do not snap the U-cup into place at this time.
2. Place the flat washer into the upper-body module on top of the U-cup. Push on the washer
with the base tool to seat the U-cup into the bore. The U-cup should snap into place.
3. Use the retaining ring pliers supplied with the service kit to insert the retaining ring into the
groove in the upper-body module bore on top of the flat washer. Use the base tool to snap
the retaining ring into place.
Item
Description
Item
Description
1
Needle
5
Upper-Body Module
2
Retaining Ring
6
U-Cup
3
Backup Seal
7
Flat Washer
4
Hat Seals
8
Retaining Ring
Figure 4-6 Installing the U-cup and Seals
1
2 3
4
5
6
7
8