Ingersoll-Rand 7-EU Series, Product Information

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EN-2 80167349_ed2
EN
Clutch Adjustment
Models ending in C1 incorporate an adjustable clutch that can be externally adjusted
within a certain range to ratchet when a predetermined torque has been delivered.
To increase the adjustable torque range, three Clutch Springs are offered.
WARNING
Turn off the air supply and disconnect the air supply hose from the Tool before proceeding.
To adjust the Clutch, proceed as follows.
1. Rotate the Adjusting Hole Cover on the Clutch Housing to expose the adjusting hole.
2. Insert a 1/4” hexagon steel (Allen Key) into the clutch hexagon recess in the Bit Holder. Rotate
the clutch mechanism until one of the radial holes in the Clutch Adjusting Nut is visible
through the adjusting hole. Insert the end of the No. 5C1-416 Adjusting Key (a hardened
steel pin or rod 3/32” [2 mm] diameter is also suitable) into the hole in the Adjusting Nut to
sprag the Nut against rotation.
3. Grasp the Tool firmly in one hand and rotate the Bit Holder to shift the Nut along the Bit
Holder. This is a left-hand thread; rotating the Bit Holder clockwise when facing the front
increases the compresion on the Clutch Spring and raises the torque at which the clutch will
ratchet.
NOTICE
The most satisfactory adjustment is usually obtained by use of the Tool on the actual
application, and increasing or decreasing the delivered torque until the desired setting
is reached. In any event it is recommended that final adjustment be made by gradual
progression.
NOTICE
The clutch, when equipped with the Heavy Spring, can be set beyond the torque capacity
of the tool, in which case the tool will stall before the Clutch ratches. Do not adjust the
Clutch beyond the torque capacity of the tool.
4. Insert the Clutch Adjusting Key into the hole in the Clutch Adjusting Nut and, while holding
the Nut against rotation, rotate the Bit Holder counterclockwise until there is no compression
on the Clutch Spring.
Parts and Maintenance
When the life of the tool has expired, it is recommended that the tool be disassembled,
degreased and parts be separated by material so that they can be recycled.
The original language of this manual is English.
Tool repair and maintenance should only be carried out by an authorized Service Center.
Refer all communications to the nearest Ingersoll Rand Office or Distributor.