CDI Torque TORQUE WRENCHES Dial Type - Manual (Page 9)

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Memory Pointer
The memory pointer (blue) is designed to be pushed by the scale pointer (orange) and
indicate the point on the scale where the largest amount of torque was applied. It must
move freely with the scale pointer (orange). Check the memory pointer (blue) by turning
the knob until it meets the scale pointer (orange) in the clockwise position. Load the
wrench to the maximum scale. The memory pointer (blue) must be pushed by the scale
pointer (orange) all the way to full scale. Repeat this test in the opposite direction.
If the memory pointer (blue) slips over the scale pointer (orange), bend the blue pointer
downward so that the tip of the memory pointer will be moved by the scale pointer. Make
sure the memory pointer (blue) does not drag on the surface of the scale.
The Scale Pointers (orange) and the Memory Pointer Assembly (crystal, knob & blue
pointer) are available as repair parts.
ACCURACY VERIFICATION
This procedure is to be used to check the accuracy of a dial wrench.
There are two major international standards that establish torque wrench accuracy
requirements. They are ASME B107.14M Hand Torque Tools (American Society of
Mechanical Engineers) and ISO 6789 Hand Torque Tools – Requirements and Test
Methods (International Organization for Standards). Both standards are recognized as
established accuracy test methods and referenced in this section. ASME and ISO
standards are subject to review and changes. The repair manual will be reviewed and
revised periodically but may not reflect the latest revision of the specifications listed
above.