
Page 28 Emhart Teknologies - 50 Shelton Technology Center, Shelton CT 06484 - Tel. (203) 924-9341 - Fax (800) 225-5614
Troubleshooting
If you are unable to fix the tool after reviewing this manual and the troubleshooting section, contact
your distributor or Emhart Technologies for repair.
Problem Cause
Action
Section
1. Parts are not correct.
The Mandrel and
Nosepiece are not the
correct ones for the
POP Nut used.
•
Change to the correct
parts for the POP Nut you
are using.
Maintenance
and Testing
subsection 2
2. Mandrel threads are
damaged.
•
Replace the Mandrel
Maintenance
and Testing
subsection 2
Cannot thread the
POP Nut onto the
tool Madrel
3. Metal chips are
jammed in Mandrel’s
threads.
•
Clean the screw threads
of the Mandrel and
lubricate with oil.
Operation
subsection 5
4. Low air pressure.
•
Adjust the pressure of the
compressed air supply.
Tool Setup
5. Insufficient Lubricant.
•
Adjust the Lubricator drip
rate.
Tool Setup
6. Insufficient Lubricant in
the rotating parts.
•
Lubrication
spray
for
rotating parts.
Maintenance and
Testing
subsection 1
7. The position of the
Control Knob is not
correct.
•
Adjust the total length of
the Control Knob
assembly.
Maintenance
and Testing
subsection 3
8. The Control Nut and
T-Valve Push Rod are
damaged.
•
Replace the damaged
parts.
Maintenance
and Testing
subsection 3
No forward or
reverse rotation
of the Mandrel.
(Slow rotation)
9. After the stroke, the
tool is pressed against
workpiece.
•
Pull the Nut tool lightly
while detaching.
Operation
subsection 2
10. The POP Nut’s threads
have been damaged by
over-stroke.
•
Adjust the stroke
correctly.
Stoke
Adjustment
The Mandrel
cannot unthread
of a POP Nut
11. Mandrel threads are
damaged.
•
Replace the Mandrel to
new one.
Maintenance
and Testing
subsection 2
Unthreading
sequence
stopped during
automatic
reverse.
12. Trigger was released
while detaching the tool
(before unthreading
was complete).
•
Follow proper operating
procedure.
•
Refer to the POP Nut
Tool detachment
procedure.
Operation
subsection 2
The reverse
rotation of the
Mandrel doesn't
stop.
13. The position of the
Control Knob is not
correct.
•
Adjust the total length of
the Control Knob
assembly.
Maintenance
and Testing
subsection 3
14. Low air pressure.
•
Adjust the pressure of the
compressed air supply.
Tool Setup
The stroke is
incomplete.
15. Too little hydraulic oil.
•
Recharge hydraulic oil.
Maintenance
and Testing
subsection 4