Harwin Gecko-MT Z125-903 User manual

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Instruction Sheet
IS-44
Gecko-MT Hand Crimp Tools Z125-903 & Z125-904
Tool in nearly
closed position
Positioner Locator
Positioner
Safety Clip
s
Selector
Knob

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IS
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Instruction Sheet for Gecko-MT Hand Crimp Tool Z125-90 /904 (MH820)
CRIMP CONTACT INFORMATION
This Hand Crimp Tool has been designed for use with the following Gecko-MT Power Crimp
Contacts:
 G125-0500005 ...................................................... Female crimp contact for 18 AWG wire
 G125-1500005 ....................................................... Male crimp contact for 18 AWG wire
GENERAL INFORMATION
The Hand crimp tool Z125-90 consists of a basic hand tool, which should be used with a
positioner.
The contact is correctly crimped when the tool is free to open at the fully closed position, i.e.,
when the ratchet releases. The tool cannot be opened without completing the cycle.
TOOL PREPARATION
1. Check that the tool is in the open position. Remove the safety clip from the positioner locator
(do not discard).
2. Insert the Positioner into the positioner locator and turn it 90° in the direction shown on the
tool, until the bayonet pins lock.
. Install the safety clip back into the positioner locator (optional).
4. Check Table 1 for the correct crimp tool setting of the wire size you wish to crimp.
5. Remove the safety clip from the selector knob (do not discard).
6. Lift and turn the selector knob until the correct crimp tool setting is lined up with the “Sel.
No.” arrow. Lower the selector knob, ensuring the locating peg lines up with a notch.
7. Install the safety clip back into the selector knob.
CRIMPING PROCEDURE
1. Ensure that the wire to be crimped is within the specified range of sizes for the contact and
the crimp tool. Failure to use the specified wire size will result in poor quality crimps and
possible tool damage.
Contact
Wire Gauge
(AWG)
Stranding
( )
Cri p Tool
Setting
Mini u
pull
-
off
force
(N)
G125
-
05000XX
18 19/0.25 8 85
G125
-
15000XX
able 1 - Crimp ool Settings and Forces

Issue:
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Date:
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/20
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Order
:
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IS
-
44
Instruction Sheet for Gecko-MT Hand Crimp Tool Z125-90 /904 (MH820)
2. Cut the end of the cable to be terminated so that there is a clean cut end (Figure A). Strip
the cable to the correct length (Figure B). We recommend that when the wire is stripped, it
is clamped or supported close to the stripping area - this will prevent insulation slippage.
Suitable wire strippers (such as a PTFE wire stripper) must be used. This should result in all
the strands lying together neatly. If the lay of the strands is disturbed, it may be re-imposed
with a slight twist.
Clean cut
Ø
1
.
5
mm max
RIGHT
WRONG
1.90 to 2. 0mm
Figure A - Clean cut end Figure B - Strip wire
. Position the crimp contact fully into the positioner, with the crimp barrel uppermost.
4. Load the termination end of the cable into the crimp barrel of the socket. Ensure the wire is
fully inserted, with all strands in place (see Figure C, contact may not be as shown).
Figure C – Wire assembled to contact
Ca tion: Wear Nitrile/Latex powder free gloves or Finger cots when
handling contacts to prevent hands from contaminating contacts.
5. Squeeze the handles of the crimp tool fully together, until the ratchet releases. The handle
will return to the open position. Remove the crimped contact and wire. Crimp joints should
be checked for:
a. Correct combination of cable, tool setting and crimp termination.
b. Correct form of indents and location of crimp.
c. Freedom of fracture, rough edges and flash.
d. Adequate insertion of all conductor strands in the crimp barrel.
e. Absence of damage to the conductor or the insulation.
ASSEMBLY PROCEDURE
Contacts are assembled to housings using the Assembly Tool Z125-905. See Instruction Sheet IS-
47 for details on assembly.

4
Issue:
4
Date:
01
/
1
2
/20
2
C/
Order
:
210
2
IS
-
44
Instruction Sheet for Gecko-MT Hand Crimp Tool Z125-90 /904 (MH820)
CARE OF TOOL
There is virtually no maintenance required for the Z125-90 tool. However, it is good practice to
keep the indenter tips free of debris. A small wire brush may be used for this purpose.
We strongly reco end that you:
 DO NOT i erse tools in any cleaning solution.
 DO NOT spray oil into tool to lubricate.
 DO NOT atte pt to disasse ble tool or ake repairs.
This is a precision cri p tool and should be handled as such.