Troubleshooting 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 "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 mechanism 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, see https://servaid.atlascopco.com.
	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 section 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 supply.	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 mechanism.	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.
	Wrong Trim valve setting	Adjust the Trim valve.
	Dirt in the Inlet or the Silencer.	Clean or replace the air Inlet strainer and the Silencer filter if needed.
	Worn parts in the motor.	Inspect and service the motor.
	Wrong or damaged trigger valve.	Inspect the trigger valve.
AutoTrim does not work properly	Set screw in tool handle is set to Trim mode.	Set the Set screw to AutoTrim mode.
	Dirt in the silencer filter.	Replace the silence filter.
	Wrong adjustments or settings.	See section Adjusting the AutoTrim Valve.
	Dirt or damaged parts in the AutoTrim.	Inspect and replace any worn parts.
	The wrong auto-trim part has been used.	Check Spare Part for to use, see https://servaid.atlascopco.com.