B3000 DS Cab Plus 2WD V6-3.0L OHV (2001)
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.
6. Remove the A/C tube lock coupling spring with a small hooked wire.
Cleaning
1. Fabricate a cleaning tool from a 1/8 inch diameter brazing rod.
2. Cut an abrasive pad with the dimensions corresponding to the coupling size.
3. Assemble the pad to the tool.
4. Coat the abrasive pad with R134a refrigerant oil.
5. Roll the pad on the tool and install it in a variable speed motor drill.
CAUTION: Maintain low speed drill rotation when inserting or removing the cleaning tool to prevent axial scratches which may cause future
leaks.
6. Polish for 1 minute at moderate speed (less than 1500 rpm) or until the surface is clean and free of scratches or debris.
