Instructions manual / Impulse wrenches and screwdrivers
43
TROUBLE SHOOTING
Trouble
Cause
Solution
Overfill oil or missing oil in the pulse unit
Draw or add the amount of oil needed
Push rod or spring worn out
Replace the push rod and spring
Low Air pressure or incorrect hose size and
air fittings
Adjust desired air pressure when the
tool is running freely.
Select the hose size and the air fittings
corrects, according the tool model
Missing
Valve
(rear plate)
Replace the parts
No Shut-off occurs
Oil and/or
X
-rings broke down
Change the oil
X
-rings if are worn out or
bad conditions
Excess of oil in the pulse unit
Draw the excess of oil from the pulse
unit
Torque setting
Adjust the target torque as is
recommended
Extensions or extra length sockets
Use sleeve drive sockets for extension
or different length need
Premature Shut-off or
uncompleted rundown
Join characteristic
Use a bigger model or a non-shut off
tool, if the join is soft or there is a
prevailing torque
Low air pressure or fluctuates
Adjust desired air pressure when the
tool is running freely.
Lack of CFM on the air motor
Check the air compressor capacity
Dry blades of the air motor
Lubricate the air motor and suggest to
add two or three drops per week
Inconsistence torque output
or low Torque
Oil and/or
X
-rings broke down
Change the oil
X
-rings if are worn out or
bad conditions
Low air pressure or fluctuates
Adjust desired air pressure when the
tool is running freely.
Low RPM’s
Dry blades of the air motor
Lubricate the air motor and suggests to
add two or three drops per week
