Newman Tools Inc. supplies a range of power tools for installing
RECOIL threads and other brand of helically wound inserts. These
are air powered and are recommended for high volume users of RECOIL
and other makes. Their use will result in greater productivity
An air motor provides the drive to an adapter to which the front-end
assembly is connected. This front-end assembly holds the RECOIL
insert, reducing its diameter. It then easily winds the RECOIL
thread into the previously tapped hole.
The air driven motor is hand activated. There are two sizes of
in-line adapters to connect the motor to the front-end assembly.
The RECOIL thread is held for delivery by the front-end assembly.
These come in many sizes, dependent on the diameter and length
This air motor is purpose built for the RECOIL insert system.
It is of rugged design and needs no maintenance during its service
Air motor 56010 is hand operated and is used for diameter No.
2-56 to 1/2 inch and metric M2.2 to M12. This motor can be hand
held or installed in the Power Tool Holder (see below).
The motor must be fed by filtered, regulated and lubricated air
from an appropriate regulator. The RECOIL threaded insert is inserted
when the switch is actuated, then the motor automatically reverses
on release of the control lever.
For clean room applications, an exhaust tube can be used. A six
foot long overhose is placed over the tool and exhaust area. This
carries the exhaust and waste oil away from the workers and assists
in keeping the workplace clean.
Two sizes of adapters are available to connect the front-end
assembly with the air motor. For small insert sizes 2-56 to 1/4
inch and metric sizes M2.2 to M6, use adapter 56030. For insert
5/16 to 1/2 inch metric M7 to M12, use adapter 56040.
To ensure correct alignment the Power Tool Holder 56000 is
recommended. This mounts on a bench and accurately holds the tool
vertically. Inserts within a radius of 23 inches (580mm), with
planes differing by up to 3.5 inches (9Omm), can be efficiently
installed with this device.
This tool holder must be used with the 2-56, M2.2 x 0.45 and M2.5
x 0.45 inserts.
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The job of inserting the RECOIL thread is done by the front-end
assembly. These are available in a variety of sizes for the application
of individual or strip feed inserts.
RECOIL insert size needs its own front-end assembly. Spacers are
used to adapt each front-end assembly to handle the longer sizes.
No spacer is required for 2 diameter long inserts in sizes from
5/16 to 1/2 inch and M7to M12.
Individual designs of the front-end assemblies may differ, however
they all use the same principle. The RECOIL insert is guided through
a prewinder and is efficiently screwed into the desired position.
The assembly is comprised of prewinder, spacers, shims, cushion
and mandrel. Three lengths of spacer are available, to handle
1 to 2 diameter inserts.
It is important to select the correct spacer length. The RECOIL
insert should be 3/4 to 1-1/2 pitch below the surface of a countersunk
hole, or 1/4 to 1/2 pitch without countersinking.
Figure above shows correct assembly and disassembly of the front-end
assembly. Pay special attention to the location of the spacer
and shim (if required) onto the mandrel. After lubricating the
mandrel threads, screw it into the prewinder so that it protrudes
into the prewinder making sure the mandrel key locates into the
drive sleeve keyway. Check that the plastic cushion is- at the
base of the drive sleeve. Rotate the prewinder to line up for
loading the insert and install the prewinder retainer nut.
Caution The prewinder retainer must be tightened by hand
only. Over tensioning will prevent free movement of the mandrel,
leading to possible damage. If after installation the mandrel
will not move freely, remove the front-end assembly. Dismantle
the spacer, shim prewinder then reassemble, making sure the mandrel
threads have been screwed through the prewinder threads. Tightening
the prewinder retainer while the mandrel threads are engaging
the prewinder threads, may seize the mandrel. This may result
in extensive damage to the RECOIL inserting tool.
Please read carefully the operating notes contained in this
page before commencing tests. Firstly, set the conditioned air
supply to the pressure indicated. Now connect the prewinder to
the power inserting tool. With the tang of the insert toward the
prewinder thread, place it so it lies flat in the well of the
prewinder. For strip inserts, make sure the tang of the insert
faces the prewinder thread, then pull the strip lightly until
the aligns in the well. Allow the insert to guide itself into
the nozzle. Actuate the tool until the motor stalls or the mandrel
clutch disengages. Retract the mandrel by releasing the lever
which reverses the air motor.
In front-end assemblies with a clutch mandrel, the motor will
continue to spin after the insert is seated. This includes the
assemblies for insert sizes 2-56 to 10-24 and metric M2.2 to M6.
On releasing the hand lever, the motor automatically reverses.
This will unscrew and retract the mandrel, then the motor will
stall in position ready for the next insertion.
In front-end assemblies with a solid mandrel, sizes 1/4 inch and
M6; or a telescoping mandrel, sizes 5/16 to 1/2 inch and M7 to
M12, the air motor stalls when the RECOIL insert is seated. Reversal
of the air motor's direction will retract the mandrel ready for
the next insertion.
When using any front-end assembly, it is important to maintain
the inserting tool in position until the mandrel fully retracts
ready for the next use.
After every 50 hours of operation, inspect the plastic cushion
which separates the mandrel from the bottom of the bore in the
driving sleeve. If there is any deterioration of the plastic,
replace the cushion. A mandrel which sticks in the retracted position
is a warning of possible wear in the plastic cushion. It has probably
compressed and become too hard, thus causing the mandrel to lock
in the up position.
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