8
Sockets
CAUTION IS REQUIRED. FAILURE TO
EXERCISE CAUTION AND CORRECT
OPERATING TECHNIQUE CAN RESULT IN
SERIOUS PERSONAL INJURY, LOSS OF
LIMB OR DEATH.
Only Impact Grade, Industrial Sockets should be used with
AcraDyne
®
HT Series Nutrunners. Mechanic-grade chrome
sockets are not to be used as they do not have sufficient
structural strength required to deliver the higher torque
loads that an AcraDyne
®
HT Series Nutrunner is capable of
delivering. In addition, the use of Socket Extensions of any
length are strongly discouraged as they also will experience
failure to an extent where tool damage or operator injury may
occur.
Pinch Point
CAUTION IS REQUIRED. FAILURE TO
EXERCISE CAUTION AND CORRECT
OPERATING TECHNIQUE CAN RESULT IN
SERIOUS PERSONAL INJURY, LOSS OF
LIMB OR DEATH.
The nature of a Reaction Bar in any continuous drive tool is to
press against an object to counteract Torque Reaction as the
tool is delivering Torque.
THE OPERATOR MUST TAKE GREAT CARE TO KEEP
BODY PARTS OR FOREIGN MATTER CLEAR OF
THE AREA BETWEEN THE REACTION BAR AND THE
SURFACE IT IS REACTING AGAINST.
ANY BODY PART OR FOREIGN MATTER
RESIDING IN A SPACE BETWEEN THE
REACTION BAR AND THE SURFACE IT
WILL REACT AGAINST WILL ENCOUNTER
SIGNIFICANT FORCES THAT CAN CAUSE
INJURY, LOSS OF LIMB OR DEATH.
Reaction Bar Guidelines
CAUTION IS REQUIRED. FAILURE TO
EXERCISE CAUTION AND CORRECT
OPERATING TECHNIQUE CAN RESULT IN
SERIOUS PERSONAL INJURY, LOSS OF
LIMB OR DEATH.
The guidelines offered below are only guidelines. Should
there be any doubt as to the integrity of a proposed reaction
strategy, it is strongly advised to consult with an AcraDyne
®
authorized representative prior to executing strategy.
Reaction force is equal to the point being applied. The
magnitude of the reaction force is dependent upon the
perpendicular distance between the point of reaction and
the centerline of the gearbox. In other words, the greater
the distance the lower force experienced. For this reason,
the point of reaction should be kept as far away from the
centerline of the tool gearbox as possible.
Figure 1 – Safe reaction window
Reaction Bar Safety
AcraDyne
®
HT Nutrunning Systems deliver high amounts of torque to an application in a continuous drive manner. As
is the nature with all tool systems that function in this manner, high amounts of torque reaction will occur. AcraDyne
®
HT systems work with Reaction Bars that engage the tool with a secure spline and when used correctly counteract
the natural torque reaction in use by pressing against a part detail or adjacent nut/bolt.
IT IS ESSENTIAL THAT THESE FORCES ARE UNDERSTOOD COMPLETELY BY THE OPERATOR AND THAT
THE REACTION BARS HAVE BEEN CHOSEN WITH THE APPLICATION’S SPECIFIC GEOMETRY IN MIND.
ACRADYNE
®
OFFERS A RANGE OF REACTION BARS FROM STOCK AND WILL DESIGN SPECIFIC REACTION
BARS TO SUIT SPECIFIC APPLICATIONS UPON REQUEST.
IT IS THE USER’S RESPONSIBILITY TO ENSURE THAT THE CORRECT REACTION BAR OR TOOL HOLDING
FIXTURE IS IN PLACE PRIOR TO USE OF THE ACRADYNE
®
HT SERIES NUTRUNNER.
