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SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION
Trigger cap leaks air 1. O-ring damaged 1. Check and replace damaged O-ring (Fig. 5, No. 47)
2. O-rings damaged 2. Check and replace damaged O-rings
(Fig. 5, Nos. 36, 38, 39, 41, 42, 47 and two 45)
Cap leaks air 1. Cap bolts loose 1. Tighten bolts (Fig. 5, No. 5)
2. Damaged cap gasket 2. Check and replace damaged gasket (Fig. 5, No. 8)
3. Damaged O-ring 3. Check and replace damaged O-ring (Fig. 5, No. 7)
Nose leaks air 1. Damaged bumper 1. Check and replace damaged bumper (Fig. 5, No. 22)
2. Ram guide damaged 2. Check and replace ram guide (Fig. 5, No. 24)
Tool will not operate
Tool operates slowly
or loses power
Tool skips fasteners or
inconsistent operation
1. Insufficient air supply
2. Damaged or worn head valve O-rings
or seal
3. Damaged head valve spring
4. Head valve binding in cap
5. Insufficient lubrication
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. Insufficient lubrication
8. Head valve poorly lubricated
1. Worn or damaged bumper
2. Build-up on ram or nose
3. Insufficient air 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. Head valve O-rings leak
11. Damaged trigger valve O-rings
12. Bent or damaged ram
13. Dirty magazine
14. Damaged or worn magazine
15. Insufficient lubrication
1. Check air supply
2. Replace damaged or worn O-rings or seal
(Fig. 5, Nos. 7, 9, 12, 13and 14)
3. Replace damaged spring (Fig. 5, No. 10)
4. Clean and lubricate cap and head valve
(Fig. 5, Nos. 4 and 11)
5. Place five or six drops of air tool oil into inlet cap
(Fig. 5, No. 25)
1. Check and replace spring (Fig. 5, No. 10)
2. Replace damaged or worn O-rings
3. Check and replace trigger assembly
4. Clean and lubricate piston/ram assembly (Fig. 5, No. 18
5. Disassemble cylinder and assemble properly
6. Check air supply
7. Place five or six drops of air tool oil into inlet cap
(Fig. 5, No. 25)
8. Disassemble head valve (Fig. 5, No. 11).
Clean, lubricate and assemble properly
1. Check and replace bumper (Fig. 5, No. 22)
2. Clean and lubricate piston/ram assembly (Fig. 5, No. 18
and inside of nose and nose cover
(Fig. 5, Nes. 65 and 60)
3. Check air supply
4. Check and replace O-ring (Fig. 5, No. 17)
5. Check and replace spring (Fig. 5, No. 71)
6. Align nose with magazine and tighten bolts
(Fig. 5, Nos. 5 and 67)
7. Use Sears recommended fasteners only
8. Discard damaged fasteners
9. Use Sears recommended fasteners only
10. Check and replace damaged O-rings
(Fig. 5, Nes. 12, 13 and 14)
11. Check and replace damaged O-rings
(Fig. 5, Nos. 36, 38, 39, 41, 42, 44, 47 and two 45)
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. 66)
15. Place five or six drops of air tool oil into inlet cap
(Fig. 5, No. 25)
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