molex 5050731100 User manual

INSTRUCTION MANUAL
IS-0117JE
ISSUED 2001-05-24
REVISED 2006-12-01
REV. B
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STRAIGHT-ACTION (SHORT HANDLE TYPE)
HAND CRIMP TOOL
OPERATING MANUAL
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Molex Japan Co., Ltd.

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Molex Japan Co., Ltd. Contents of Update Instruction Manual No. IS-0117JE
Title
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Straight-action (Short Handle Type) Hand Crimp Tool
Tool Number
Rev. Issued Description
0 2001/05/24
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New creation release.
A 2005/01/13
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Changed the form into the bilingual version.
ECN-JM50012 Prepared by Y. Ishiwata
Checked by T. Yoshida
B 2006/12/01 Work Manager
Changed the format and new registered in Work
Manager.
ECN-JT2007-0053 Approved by A. Horino

A–1
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<Safety Precautions>
Please read the following before operating the tool.
Introduction
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Thank you for choosing our Straight-action (Short Handle Type) Hand Crimp Tool.
This document is prepared so that the tool is properly used.
Please take the time to read this manual, making sure you understand the operating procedures
described herein before attempting to operate the tool.
Dangerous operations
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Don’t insert a part of your body or other foreign materials in the hand crimp tool (hereinafter
referred to as the “tool”) while you’re operating the handle of a tool, as injury my result.
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Beware of a handle when it is opened. Releasing a ratchet may cause the handle to open
abruptly, resulting in injury.
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Only users who have received adequate training on usage and safety from their manager, and
have appropriate knowledge and skills must use the tool. Use by unfamiliar users may cause
injury.
<Caution>
Unauthorized reproduction of this document in part or in whole is prohibited.
The contents of this document are subject to change without notice.
Molex Japan Co., Ltd. assumes no responsibility for losses resulting from use or

A–2

<Safety Precautions>
Please read the following before operating the tool.
Careful handling
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Always check the tool number, applicable terminal, and wire size, etc. before using the tool in the
crimping process.
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Check the tool for any damage, and repair prior to use. Defective crimping may result in fire.
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Clean the tool regularly if used frequently.
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Avoid storing the tool in extremes of temperature, or high-humidity environment.
Keep the tool in a place out of reach of children in order to prevent accidents.
Must not be carried out
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Don’t use this tool in place of a hammer, pliers, or other tools. Don’t remodel the tool. Parts
damage may result in accident or injury.
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Don’t use this tool for unspecified terminals. Don’t crimp unspecified wires. Both may cause tool
damage.
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The ratchet mechanism of this tool is designed based on operation by grip of hand. Note that
improper handling such as installing it into other devices and opening the handle forcibly may
decrease its capabilities and lifespan.

Page 1
Description
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This tool is a Straight-action (short handle type) Hand Crimp Tool that is developed for
crimp-connecting a wire to a crimp terminal of Molex.
Please confirm the tool number, the applicable terminal number, and the size of the applicable
wire marked on the tool before attempting to operate this tool.
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Tool Specification
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Tool name:
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Straight-action (short handle type) Hand Crimp Tool
External size and weight: mm 220 (width) x 70 (depth) x 15 (thickness) mm, Approx. 400gf
Management method:
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Conductor crimp height and crimp strength (Details are described to
the crimp specification of a corresponding tool)
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Part names of tool
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Grip
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Handle
N&(- 2 /(- Ratchet
adjustment screw & Fixing nut
=(.
Head
Crimp section
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Link
220 mm
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Ratchet part

Page 2
Operation Method
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Hold the tool handle, and squeeze it until the ratchet is released. Then, unclench your hand. The
handle will be opened by the return spring.
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Insert a “terminal (1)”into the “crimp section (3)”from the “Molex logo mark side (2).”Insert a
“terminal (1)”so that the “Molex logo mark side (2)”faces the contact.
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Close the handle lightly until the “barrel (5)”of a “terminal (1)”is held by the “insulation punch
(6)”and “anvil (7)”. (See the figure on next page)
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At this time, the point of a “locator (8)”is placed between the “conductor barrel (9)”and the
“insulation barrel (10)”so that the “terminal (1)”does not come off. (See the figure on next page)
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“Note” Don’t tighten the handle excessively, as doing so may cause deformation of a terminal and
prevent insertion of a wire.
$D/P
Terminal number engraving side
Crimp section
Molex
RC 
Molex logo mark side
5QP
Barrel
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Terminal

Page 3
Operation Method (Continued)
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Insert the stripped “wire (11)”from the “terminal number engraved side (4)”until the “insulation
end face (12)”contacts the “locator (8).”
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Squeeze the handle of the tool firmly until the ratchet is released (clicks), while holding the wire
in the same position.
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When the ratchet clicks and is released, the handle is automatically opened by the return spring,
and the terminal is crimped.
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Holding and pulling the “wire (11)”toward downward gently removes the crimped terminal.
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“Note”Don’t tighten the handle excessively after the ratchet is released, as doing so may
over-crimp the terminal, and cause the wire breakage and the tool damage.
5QP
Insulation barrel
5QP
Conductor barrel
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Anvil
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Direction of terminal
insertion
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Locator
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Insulation punch
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Conductor punch
Insulation end face
Wire
Molex RC 
Molex logo mark side
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Terminal number engraved side

Page 4
Daily Maintenance
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Check that the handle moves smoothly. (As needed)
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After using the tool, always apply machine oil or anti-corrosive oil to the crimp section, the link,
the ratchet, and other moving parts. (As needed)
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Ratchet adjustment screw
Crimp section
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Ratchet part
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Fixing nut
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Link

Page 5
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Management of Crimp Terminal
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Conductor Crimp Height
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Always check the conductor crimp height (conductor crimp part) at the beginning and end of daily
operation, and also check it regularly during operation.
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Refer to the specification table provided with the tool for the conductor crimp height.
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When the conductor crimp height is not in accordance with the specification, the tool has
damaged or reached the end of its lifespan. Please consult our service personnel.
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As this tool crimps wires of various sizes using one set teeth, the insulation crimp height is for
reference only.
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“Note”We recommend measuring the conductor crimp height by using
the “crimp height micrometer”(commercial item) in a right
picture.
Wire strip length
Insulation crimp height
(reference)
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Conductor crimp height
Extrude wire length
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Measurement of