Siemens DCA Vantage Operator's Manual page 100

9. Pull the cartridge return spring completely out of the system.
10. Clean the cartridge return spring using any of the following items:
• warm solution of mild detergent and water
• lint-free cloth dampened in water or ethanol
NOTE: Ensure the leaf springs are not bent or damaged while cleaning.
Damaged leaf springs do not function properly.
1 Spring Cut-out
2 Leaf Springs
Figure 33 Return Spring
11. Dry the cartridge return spring with a clean, lint-free cloth.
100 DCA Vantage Operator's Guide