EP5PTI19 HR10-MT EN Troubleshooting
© Atlas Copco Industrial Technique AB - 9839 0661 01
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Troubleshooting
Trouble shooting guide
Problem Reason Action
The tool does not shut off, or the
tightening time is too long.
Target torque close to maximum
torque of the tool.
Chose a bigger tool with more
power.
Low dynamic air pressure. Check the dimensions of the hose
and couplings. Increase the air
pressure.
Low rotation speed. See Problem mode "The rotation
speed is too low".
The extension is too long. Check the extension.
Worn extension or socket/bits. Check the extension and socket/
bits.
Torque setting screw is turned too
much.
Adjust the torque setting screw
CCW until tool shuts off.
The Stop pin in the shut off mecha-
nism is incorrectly adjusted.
Check with a gauge.
Incorrect oil level in the Pulse unit. Adjust the oil level or refill the oil.
The joint is too soft for the tool. Chose a bigger tool with more
power.
Worn parts in the Pulse unit. Inspect and replace any worn
parts.
Malfunctioning AutoTrim. Check the AutoTrim function.
The yield point of the joint is
reached.
Check the joint specification.
The pulse frequency is too high or
too low.
Incorrect oil level in the Pulse unit. Adjust the oil level or refill the oil.
Inconsistent shut off or insufficient
accuracy
The target torque is not within the
tool specification.
Change to a different tool size.
Not enough pulses (hard joint and
low torque setting).
See Optimizing the performance of
your ErgoPulse tool.
Extension is too long. Check the extension.
Worn extension or socket/bits. Check the extension and socket/
bits.
Pressure fluctuations in the air sup-
ply.
Use a pressure regulator (for each
tool) to get a consistent air supply.
Incorrect oil level in the Pulse unit. Adjust the oil level or refill the oil.
Friction is too low on the Torque
setting screw.
Replace with new screw.
Worn parts in the Shut off mecha-
nism.
Inspect and replace any worn
parts.
Stop pin in the Shut off mechanism
is not correctly adjusted.
Check with a gauge.
Malfunctioning AutoTrim. Check the AutoTrim function.
The joint is too soft and max torque
setting.
Reduce the torque setting slightly,
or use a bigger tool with more
power.
The rotation speed is too low. Not enough air pressure. Check the dimensions of the hose
and couplings. Increase the air
pressure.