FlexArm FLEXARM RNR, Руководство по установке и эксплуатации

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1/4/2021 REV. 002 11
ADJUSTING TORQUE HOLDER CLUTCH SETTING:
The torque holders are factory preset to the standard break torque limits developed for each tap size in mild
steel (approximately 229 BHN or 25 RC). The break torque limit protects the tap when tapping blind or bottom
holes. When the tap reaches the bottom of the hole, resistance will cause the torque holder’s safety clutch to
ratchet and stop the tap from turning, over-torquing and ultimately breaking. When tapping hardened steel
(above 40 RC), stainless steel, or other tough alloys, an increase in the factory torque setting may be required
in order to drive the tap the full depth of the hole. When using the torque adapters to tap soft materials or
plastics, a decrease in the factory torque setting prevents the tap from over-torquing after it reaches the
bottom of the hole (See “Torque Requirements for Tapping” chart on the following page).
There are two locking holes on the outside diameter of the torque holder that the tail of the snap ring aligns
to. These two positions allow the holder to be adjusted one half of a full notch of the adjustable thread ring at
a time. The tail of the snap ring must be inserted in the hole at either position and through a notch of the
thread ring in order to lock the adjusted torque setting. Figure 9 below shows the components related to the
adjustment of the torque holder.
Caution: Never adjust the torque setting more than one (1) notch at a time. Adverse tapping conditions and
broken taps may result!
To adjust the torque setting, first
remove the tap, then remove the
snap ring as shown in figure 10.
Take note of the hole location in
which the tail of the snap ring was
removed. Use the spanner wrench
to turn the torque adjustment ring
either clockwise to increase the torque setting, or counter-clockwise to reduce the torque setting.
After turning the thread ring a full notch, reinsert the tail of the snap ring in the original hole. If a lesser
adjustment is needed, turn the adjusting thread ring half the distance between the thread ring notches. Insert
the snap ring tail in the alternate hole on the outside diameter of the torque holder. This hole will be aligned
with a notch of the adjusting ring.
Figure 9
Figure 10