Graco 255828 Operations & Parts List page 9

7. Cover exposed openings with grease.
Coupling
Block
Install Coupling Block
Replace nicked, damaged, or worn coupling block gas-
kets.
1. With gaskets in place, fit coupling block to gun
block.
2. Insert coupling block mounting screw and use
5/16 in. nut driver to tighten to gun block.
312888D
Operation Basics
9