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Instruction Sheet
TOOLING ASSISTANCE CENTER 1-800-722-1111
PRODUCT INFORMATION 1-800-522-6752
This controlled document is subject to change.
For latest revision and Regional Customer Service,
visit our website at www.te.com
408-2681
ROTA-CRIMP*
Crimping Tool
68321-1
13 APR 12 Rev C
Figure 1
1. INTRODUCTION
ROTA-CRIMP Crimping Tool 68321-1 (shown in
Figure 1) is used to crimp Series 75 Power Lock
Contact 53880-4 onto solid or stranded wire sizes 10,
8, or 6 AWG. Read these instructions thoroughly
before using the tool.
Dimensions in this instruction sheet are in
millimeters [with inches in brackets]. Figures and
illustrations are for reference only and are not
drawn to scale.
Reasons for reissue of this instruction sheet are
provided in Section 7, REVISION SUMMARY.
2. DESCRIPTION
The FRONT of the tool, into which the contact is
inserted, can be identified by the tool part number on
the link. The tool features a stationary die (6.35 mm
[.250 in.] wide F crimp nest), rotatable anvil die with
three settings, hold-down device, and contact locator.
The anvil must be set to the wire size being used. The
applicable wire size is stamped on the base of the
anvil die. When closed, the dies form one crimping
chamber.
The hold-down device and contact locator are
mounted on a metal strip. The metal strip must be
adjusted to accommodate the contact position during
the crimping process.
3. CRIMPING PROCEDURE
Refer to Figure 2, and strip the wire to within the
dimensions shown.
DO NOT use wires with missing or nicked
conductor strands.
Figure 2
Proceed as follows:
1. Open the tool head. Make sure that the anvil die
is locked in position and that the locator pin is visible
as shown in Figure 1. It is not necessary at this time
to set the anvil die to a specific wire size.
2. Place a sample contact in the nest of the
stationary die as shown in Figure 3. The open end
of the wire barrel must be aligned in the nest.
3. Loosen the two screws securing the hold-down
device and contact locator, and position the contact
locator over the contact tongue as shown in
Figure 3. Do not re-tighten the screws at this time.
The hold-down device and contact locator must be
properly adjusted so that the contact will remain
aligned during the crimping process.
4. Slowly close the tool head, making sure the
contact remains properly positioned in the nest. If
the contact is cocked or otherwise out of line, re-
align it before proceeding. The contact should
remain in the nest as shown in Figure 3. DO NOT
deform the wire barrel.
Locator Pin
Indexing Pin
Wire Size
Marking
Stationary
Die (Nest)
Anvil Die
Hold-Down
Device and
Contact Locator
Front of
Tool
NOTE
i
CONTACT
WIRE SIZE (AWG)
WIRE STRIP
LENGTH
53880-4
10, 8, 6
7.95-9.53
[.313-.375]
!
CAUTION
Strip Length
Wire Barrel
Transition
Area
Series 75 Power Lock Contact
NOTE
i
O
R
IG
INAL
INST
RUCTIONS
