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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. 45)
2. O-rings damaged 2. Check and replace damaged O-rings
(Fig. 5, Nos. 34, 36, 37, 39, 40, 43, and 45)
Cap leaks air 1. Cap bolts loose 1. Tighten bolts (Fig. 5, No. 4)
2. Damaged cap gasket 2. Check and replace damaged gasket
(Fig. 5, No. 8)
Nose leaks air
Tool will not operate
Tool operates slowly
or loses power
Tool skips fasteners or
inconsistent operation
1. Nose bolts loose
2. Damaged nose O-ring
3. Damaged bumpers
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,
2.
3.
4.
5.
6.
7.
8.
Damaged head valve spring
Damaged or worn O-rings
Damaged trigger assembly
Build-up on ram
Cylinder not sealed on bumper
properly
Insufficient air supply
Insufficient lubrication
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
or split ring
5. Damaged 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-ring
12. Bent or damaged ram
13. Dirty magazine
14. Damaged or worn magazine
15. Insufficient lubrication
1. Tighten bolts (Fig. 5, No. 28)
2. Check and replace damaged nose O-ring
(Fig. 5, No. 19)
3. Check and replace damaged bumpers
(Fig. 5, Nos. 23 and 24)
1. Check air supply
2. Replace damaged or worn O-rings or seal
(Fig. 5, Nos. 11, 12 and 14)
3. Replace damaged spring (Fig. 5, No. 10)
4. Clean and lubricate cap and head valve
(Fig. 5, Nos. 6 and 13)
5. Place five or six drops of air tool oil
into inlet cap (Fig. 5, No. 31)
1. Check and replace damaged spring (Fig. 5, No. 10)
2. Check and replace damaged or worn O-rings
3. Check and replace trigger assembly
4. Clean and lubricate piston/ram assembly
(Fig. 5, No. 17)
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. 31)
8. Disassemble head valve (Fig. 5, No. 13), clean,
lubricate and assemble properly
1. Check and replace bumpers (Fig. 5, Nos. 23 and 24)
2. Clean and lubricate piston/ram assembly
(Fig. 5, No. 17)
3. Check air supply
4. Check and replace O-ring or split ring
(Fig. 5, Nos. 16 and 18)
5. Check and replace spring (Fig. 5, No. 76)
6. Tighten bolts (Fig. 5, Nos. 56 and 64)
7. Use Sears recommended fasteners only
8. Discard damaged fasteners and use
Sears recommended fasteners only
9. Use Sears recommended fasteners only
10. Check and replace damaged O-rings
(Fig. 5, Nos. 11 and 12)
11. Check and replace damaged O-rings
(Fig. 5, .Nos. 34, 36, 37, 39, 40 and 43)
12. Check and replace damaged piston/ram assembly
(Fig. 5, No. 17)
13. Clean magazine and lubricate with air tool oil
14. Check and replace magazine (Fig. 5, No. 72)
15. Place five or six drops of air tool oil into inlet cap
(Fig. 5, No. 31)
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