Spaenaur

General Application Procedures
Mode d’emploi
▲
C
Drill
1. Drill out damaged or stripped
threads using drill size as specified on
pack or kit.
2. Drill to adequate depth: completely
through, or to bottom, for blind holes.
Tap
1. Use HeliCoil tap as listed on pgs.
C220 to C227. Check thread size designation
on shank to assure correct size.
2. Cut proper thread size as required
to receive insert. No other machining is
necessary.
Tang Removal
Tang must be removed to allow full passage of fastener through insert. After
installation, place square end of punch (no chamfer) on tang. Strike sharply with
hammer. Tang will break off at notch.
Spark Plug Application Procedures
Install
1. Use correct installation tool and
insert. Screw insert on mandrel until
driving tang is fully engaged in slot.
Note: Installation tool with prewinder
body.
Retract mandrel from prewinder. Place
insert on threaded portion. Place prewinder
over mandrel. Rotate mandrel clockwise
until insert is engaged in 1 or 2
threads of the prewinder.
2. Screw insert into tapped hole. Top
of insert must be 1/4 to 1/2-turn below
top surface.
Ream/Tap
The HeliCoil reamer/tap design eliminates
the need for drilling out worn
threads, engine disassembly, and use
of a tap wrench.
1. Pack flutes with heavy grease to
contain chips.
2. Thread pilot into hole. Rotate until
new threads are cut.
3. Blow remaining chips out through
ports.
Install
1. Set stop collar to contact tool body
when mandrel projects through prewinder
an approximate distance equal to plug
reach.
2. Retract mandrel from body. Place
insert on threaded portion.
3. Place tool body over mandrel. Rotate
mandrel clockwise until insert is engaged
in 1 or 2 threads of the body.
4. Place tool squarely over tapped hole.
Rotate mandrel while holding the body.
Wind insert into work until collar contacts
body. Top of insert must be 1/4 to 1/2-turn
below top surface.
Tang Removal
1. Use tool shown on page C219, or
long-nose pliers.
2. Bend tang up and down to snap it
off at notch.
HeliCoil
Full industrial range
now available from
SPAENAUR
CATALOG 13
C218
29 Aug 01