norbar PneuTorque PTS-52-500, Operator'S Manual

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13
FIGURE 2 – Cranked Reaction Bar
(Steel or Aluminium)
X
It is essential the reaction bar rests squarely against a solid object or
surface adjacent to the fastener to be tightened.
DO NOT react on the surface circled in
red
on Figure 2.
React on the end of the reaction bar, circled in green on Figure 2, using
the maximum area possible.
The ideal reaction arrangement has the centre of the reaction bar and
the centre of the nut on a perpendicular line to the centre line of the
tool, see Figure 3.
The supplied reaction bar has been designed to give an ideal reaction
point when used with a standard length socket.
To allow for a small difference in socket length the reaction bar may
contact any point within the shaded area of Figure 3.
WARNING: IF THE REACTION POINT IS OUTSIDE
THE SHADED AREA EXCESSIVE
LOADS MAY BE PLACED ON THE
TOOL LEADING TO POTENTIAL
OPERATOR INJURY AND DAMAGE TO
THE TOOL.
If an extra long socket is used it may move the reaction bar outside the
safe reaction window, as seen in Figure 4.
The standard reaction bar may need to be extended to ensure it
remains within the shaded area.
For alternative reaction bars see ACCESSORIES list.
WARNING: IF MODIFYING THE STANDARD
REACTION BAR ENSURE IT IS
CAPABLE OF TAKING THE MAXIMUM
LOAD OF THE TOOL. FAILURE OF THE
REACTION BAR CAN ENDANGER
OPERATOR SAFETY AND DAMAGE THE TOOL.
Standard drive square extensions, see Figure 5, MUST NOT be used as these will cause serious damage to
the tool output drive.
A range of nose extensions is available for applications where access is restricted. These are designed to
support the final drive correctly.
FIGURE 5 – Drive Square Extension
FIGURE 4 – Extra Long Socket
Safe Reaction Window
FIGURE 3 –
Standard Length
Socket Safe Reaction Window