Elliott ET75 Series, Operating And Maintenance Instructions Manual

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6
Stall Torque Right Angle Rolling Motor
• These tools are designed to operate on 90 psi (6.2 bar) maximum air pressure. If the
tool is properly sized and applied, higher air pressure is unnecessary. Excessive air
pressure increases the loads and stresses on the tool parts, sockets, and fasteners
and may result in breakage. Installation of a filter-regulator-lubricator in the air supply
line ahead of the tool is recommended. Only use approved air lubrication.
• Before the tool is connected to the air supply, check the throttle for proper operation
(i.e., throttle moves freely and returns to closed position). Clear the air hose of
accumulated dust and moisture.
• Be careful not to endanger adjacent personnel. Before removing a tool from service or
changing sockets, make sure the airline is shut off and drained of air. This will prevent
the tool from operating if the throttle is accidentally engaged.
• It is essential for safe operation for any operator of a rolling motor to use good
balance, sure footing, and proper posture in anticipation of a torque reaction. Insure
that the operator’s hand will not be wedged or pinched between the work and the tool
when operating. Always use ambient light to ensure safe operation.
• Higher torque right angle motors are supplied with splined torque reaction mounting plates
which accept torque reaction bars. These bars can be braced against the work, adjacent tubes,
or other suitable points to absorb and relieve the operator of the torque reaction transmitted
by the tool. Tool balance arms are also available to absorb the torque reaction transmitted by
the tool. Due to their squared design, the reaction mounting plates also prevent the motor from
rolling off the work station, preventing further injury. Tool balance arms are also available to
absorb the torque reaction of the tool for improved ergonomic applications if work is accessible.
CAUTION
!
When using right angle nutrunners, be sure the throttle is positioned relative to
the right angle head so the throttle will not become wedged against an
adjacent object in the “ON” position due to torque reaction. The angle head
may be repositioned with respect to the lever (on tools with levers) to
accommodate proper location for task. If tool is to be reversed, locate throttle
lever in a neutral position that will prevent entrapment. Refer to operating
instructions for additional information.
CAUTION
!
Operator must be prepared to resist stall torque until throttle is released. Use of
a torque reaction bar is recommended.
SAFETY GUIDELINES