Craftsman 68496 Operation Manual - Page 5

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. 5, No. 44) 2. Check and replace damaged stem, seal or O-rings (Fig. 5, Nos. 39, 42, 43 and 44) 1. Cap bolts loose 2. Damaged O-ring 1. Tighten bolts (Fig. 5, No. 3) 2. Check and replace damaged O-ring (Fig. 5, No. 6) 1. Damaged cylinder O-ring 2. Damaged Bumper 3. Ram guide damaged 1. Check and replace damaged O-ring (Fig. 5, No. 19) 2. Check and replace damaged bumper (Fig. 5, No. 21) 3. Check and replace ram guide (Fig. 5, No. 31) 1, Insufficient air supply 2. Damaged or worn head valve O-rings 3, Broken head valve spring 4. Head valve binding 1. Check air supply 2. Replace damaged or worn O-rings (Fig. 5, Nos. 10 and 13) 3. Replace broken spring (Fig. 5, No. 9) 4. Clean and lubricate cap and valve (Fig. 5, Nos. 5 and 12) 1, Head valve spring doesn't work 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 1. Check and replace spring (Fig. 5, No. 9) 2. Check and replace damaged or worn O-rings 3. Check and replace trigger assembly 4. Clean piston-ram assembly (Fig. 5, No. 18) 5. Disassemble cylinder and assemble properly 6, Check air supply 1. Worn or damaged bumper 2. Build-up on ram or nose 3, Insufficient air supply 4. Damaged or worn piston O-ring or seal 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. Damaged trigger valve O-ring and seal 12. Bent or damaged ram 13. Dirty magazine 14. Damaged or worn magazine 1. Check and replace bumper (Fig. 5, No. 21) 2. Clean piston-ram assembly (Fig. 5, No. 18) and inside of nose cover (Fig. 5, No. 61) 3. Check air supply 4. Check and replace O-ring or seal ring (Fig. 5, Nos. 17 and 16) 5. Check and replace spring (Fig. 5, No. 51) 6. Align nose with magazine and tighten bolts (Fig. 5, No. 62) 7. Use Sears recommended fasteners only 8. Discard damaged fasteners 9. Use Sears recommended fasteners only 10. Tighten cap bolts (Fig. 5, No. 3). Check and replace damaged cap O-ring (Fig. 5, No. 6) or gasket (Fig. 5, No. 8) 11. Check and replace damaged O-ring and seal (Fig. 5, Nos. 39 and 44) 12. Check and replace damaged piston-ram assembly (Fig. 5, No. 18) 13. Clean magazine and lubricate with air tool oil 14. Check and replace magazine (Fig. 5, No. 57)