F 350 2WD Super Duty V8-7.3L DSL Turbo VIN F (1999)
4. Pull the spring lock coupling fittings apart.
5. Remove the O-ring seals with a non-metallic tool.
CAUTION: Do not use metal tools to remove the O-ring tools. They can cause axial scratches across the O-ring grooves resulting in refrigerant
leaks.
6. Remove the A/C tube lock coupling spring with a small hooked wire.
CAUTION: Do not use a screwdriver or similar tool to remove the A/C tube lock coupling spring; this can cause axial scratches across the O-ring
grooves resulting in refrigerant leaks.
CLEANING
1. Fabricate a cleaning tool from a 1/8 inch diameter brazing rod.
2. Cut an abrasive pad from maroon colored 3M Scotch Brite (R) with the dimensions corresponding to the coupling size.
Coupling Size
Pad Size
3/8 inch
25 X 50 mm (1 X 2 inch)
