Troubleshooting - MasterCraft 058-8489-4 Instruction Manual

23

Troubleshooting

The following chart lists common issues and solutions. Please read it carefully and follow all
instructions closely.
• Disconnect the tool from the air supply before making any adjustments.
• Repairs must be performed by a qualified service technician only.
PROBLEM
Air leakage near the
top of the tool or in
the trigger area.
Air leakage near the
bottom of the tool.
Air leakage between
the bottom and the
cylinder cap.
Fasteners are being
driven too deep.
DANGER!
Potential hazard that will result in serious injury or loss of life.
• If any of the following symptoms appear while the tool is in use, turn it off and
disconnect it from the air supply immediately. Failure to comply will lead to
serious injury or loss of life.
POSSIBLE CAUSES
1. The O-rings in the trigger valve
are damaged.
2. The trigger valve heads are
damaged.
3. The trigger valve stem, seal or
O-rings are damaged.
1. The screws are loose.
2. The bumper (24) or O-rings
are worn or damaged.
1. The screws are loose.
2. The O-rings or the seals are worn
or damaged.
1. The bumper is worn.
2. The air pressure is too high.
3. The depth adjustment knob is not
adjusted properly.
AIR-POWERED 3-IN-1 NAILER 058-8489-4
SOLUTIONS
1. Inspect and replace O-rings.
2. Inspect and replace trigger valve heads.
3. Inspect and replace trigger valve stem, seal,
or O-ring.
1. Tighten the screws.
2. Inspect and replace the O-rings or the
bumper.
1. Tighten the screws.
2. Inspect and replace the O-rings or the seals.
1. Replace the bumper.
2. Adjust the air pressure.
3. Adjust depth setting by turning the knob
See section "Fastener
counter-clockwise.
depth adjustment" in this manual for more
detailed instructions.