Craftsman 18178 Operation Manual - Page 7

SYMPTOM Trigger cap leaks air Cap leaks air Nose leaks air Tool will not operate Tool operates slowly or loses power Tool skips fasteners or inconsistent operation POSSIBLE CAUSE(S) 1. O-ring damaged 2. Valve stem, seal or O-rings damaged CORRECTIVE ACTION 1. Check and replace damaged O-ring (Fig. 12, No. 36 2. Check and replace damaged stem, seal or O-rings (Fig. 12. Nos. 31,33, 34 and 36) 1. Cap bolts loose 2. Damaged gasket 1. Tighten bolts (Fig. 12, No. 4) 2. Check and replace damaged gasket (Fig. 12, No. 7) 1. Nose bolts loose 2. Damaged nose O-ring 3. Damaged cylinder O-ring 4. Damaged bumper 5. Ram guide damaged 1. Tighten bolts (Fig. 12, No. 48) 2. Check and replace damaged O-ring(Fig. 12, No. 18) 3. Check and replace damaged O-ring (Fig. 12, No. 18) 4. Check and replace damaged bumper (Fig. 12, No. 21 5. Check and replace guide (Fig. 12, No. 44) 1. Insufficient air supply 2. Damaged or worn head valve O-ring or seal 3. Damaged head valve spring 4. Head valve binding in cap 5. Insufficient lubrication 1. Check air supply 2. Replace damaged or worn O-ring or seal (Fig. 12, Nos. 8 and 13) 3. Replace damaged spring (Fig. 12, No. 10) 4. Clean and grease cap and head valve (Fig. 12, Nos. 6 and 12) 5. Place five or six drops of air tool oil into inlet cap (Fig. 12, No. 24) 1. Damaged head valve spring 2, Damaged or worn O-rings 3, Damaged trigger assembly 4, Build-up on ram 5. Cylinder not sealed on bumper properly 6. Insufficient air supply 7. Head valve poorly lubricated 8. Insufficient lubrication 1. Check and replace damaged spring (Fig. 12, No. 10) 2. Check and replace damaged or worn O-rings 3. Check and replace trigger assembly 4. Clean piston/rem assembly (Fig. 12, No. 16) 5. Disassemble cylinder and assemble properly 6. Check air supply 7. Disassemble head valve (Fig. 12, No. 12), olean, grease, and assemble properly 8. Place five or six drops of air tool oil into inlet cap (Fig. 12, No. 24) 1. Worn or damaged bumper 2. Build-up on ram or nose 3. Insufficientair supply 4. Damaged or worn piston O-ring 5. Damaged magazine spring 6. Magazine nose bolts loose 7. Fasteners too short 8. Damaged fasteners 9. Incorrect fastener size 10. Cap leaks 11. Head valve O-rings leak 12. Damaged trigger valve O-rings 13. Bent or damaged ram 14. Dirty magazine 15. Damaged orworn magazine 16. Insufficient lubrication 1. Check and replace bumper (Fig. 12, No. 21) 2. Clean and grease piston/ram assembly (Fig. 12, No. 1_ 3. Check air supply 4. Check and replace O-ring (Fig. 12, No. 15) 5. Check and replace spring (Fig. 12, No. 64) 6. Align nose with magazine and tighten bolts (Fig. 12, Nos. 47 and 60) 7. Use Sears recommended fasteners only 8. Discard damaged fasteners 9. Use Sears recommended fasteners only 10. Tighten cap bolts (Fig. 12, No. 4). Check and replac_ damaged gasket (Fig. 12, No. 7) 11. Check and replace damaged O-rings (Fig. 12, Nos. 11, 13 and 14) 12. Check and replace damaged seal and O-rings (Fig. 12, Nos. 31, 34 and 36) 13. Check and replace damaged piston/ram assembly (Fig. 12. No. 16) 14. Clean magazine and lubricate with a dry, film lubricant. 15. Check and replace magazine (Fig. 12, No. 60) 16. Place five or six drops of air tool oil into inlet cap (Fig. 12, No. 24) 7