TM 9-2320-209-34-2-2 FRAME 2 1. Check liner (1) for scores or pitting. 2. Check valve (2) and valve seat (3) for pitting, scoring or cracks. 3. Check valve spring (4) for broken or damaged coils. 4. Check valve cover (5) for cracks or breakage. GO TO FRAME 3 17-236