Harbor Freight Tools 99640 - Manual (Page 13)

SKU 99640 For technical questions, please call 1-800-444-3353. Page 13
Troubleshooting
Problem Possible Causes Likely Solutions
Air leaking in Head
Cap (5).
1. Loose Bolt (3).
2. Lock Ring (11) is cracked or
worn.
1. Tighten and recheck.
2. Replace Lock Ring.
Lack of power.
Slow to cycle.
Low power when
shooting and
returning.
1. Tool is too dry.
2. Air pressure too low.
3. Exhaust blocked.
1. Add about 3 drops of pneumatic tool oil into
the Air Plug (82).
2. Check to make sure regulator on air
compressor is set between 70 PSI and 120
PSI.
3. Clean exhaust channel.
Not shooting
fasteners or
only intermittent
feeding.
1. Damaged Pusher Spring (51).
2. Wrong size of fasteners.
3. Fixed Magazine (52) or
Plate (45) is dirty.
1. Replace Spring.
2. Use 1/2” Crown Flooring Staples or 1-1/2” - 2”
“L” or “T” Type Flooring Cleats.
3. Clean Fixed Magazine and Plate.
Fastener is
jammed in tool.
1. Driver channel is worn.
2. Piston (25) is broken or worn.
3. Bent fasteners. 1. Replace Plate (45).
2. Replace Piston.
3. Remove bent fasteners. Replace with 1/2”
Crown Flooring Staples or 1-1/2” - 2” “L” or
“T” Type Flooring Cleats.
Follow all safety precautions whenever diagnosing or servicing the
tool. Disconnect air supply before service.