molex RHT-4754 User manual

RHT-4754 Hand Crimp Tool
Doc No. 64003-7200 Release Date: 08-02-06 UNCONTROLLED COPY Page 1 of 6
Revision: A Revision Date: 08-02-06
Hand Crimp Tool
Operating Instruction and Specifications Sheet
Part No. 64003-7200
Eng. No. RHT-4754
(Replaces 19284-0024)
FEATURES
 A full cycle ratcheting hand tool ensures complete crimps
 Long handles for comfortable crimping with reduced crimping force
 A precision user-friendly terminal locator wire stop holds terminals in the proper crimping position
 Insulation crimp adjustment allows a precise insulation crimp.
 2-nested tool eliminates the need for additional tools
SCOPE
VibrakrimpFemale Non-Insulated Std. and Piggyback Quick Disconnects, 14–22 AWG.
Testing
Mechanical
The tensile test or pull test is a means of evaluating the mechanical properties of the crimped connections. The following charts show
the UL specifications for various wire sizes. The tensile strength is shown in pounds and indicates the minimum acceptable force to
break or separate the terminal from the conductor.
Wire Size (AWG) *UL - 310
22 8
20 13
18 20
16 30
14 50
*UL – 310 – Quick Disconnects
The following is a partial list of the product part numbers and their specifications that this tool is designed to run. We will be adding
to this list and an up to date copy is available on www.molex.com.
Wire Size: 18-22 AWG 0.80 – 0.35mm2
Wire Strip Length Insul. Dia. Max.Terminal
No.
Terminal
Eng No. (REF) In. mm In. mm
190180001 AA-4173 .220 5.56 .130 3.18
190180002 AA-4173-032 .220 5.56 .130 3.18
190180005 AA-4176 .220 5.56 .130 3.18
190180007 AA-4180 .220 5.56 .130 3.18
190430002 PBT-4A .220 5.56 .180 4.45
Wire Size: 14-16 AWG 2.00 –1.30mm2
Wire Strip Length Insul. Dia. Max.Terminal Terminal
In. mm In. mm
190180011 BB-4174 .220 5.56 .130 3.18
190180014 BB-4177 .220 5.56 .130 3.18
190180016 BB-4181 .220 5.56 .130 3.18
190180017 BB-4181-032 .220 5.56 .130 3.18

RHT-4754 Hand Crimp Tool
Doc No. 64003-7200 Release Date: 08-02-06 UNCONTROLLED COPY Page 2 of 6
Revision: A Revision Date: 08-02-06
Figure 3
2ND
TAB LOCATOR
WIRE
TERMINAL
BARREL
INSULATION
PUNCH
CONDUCTOR
ANVIL
TERMINAL
LOCATOR
CONDUCTOR
PUNCH
INSULATION ANVIL
1ST TAB LOCATOR
Figure 2
TERMINAL
WIRE
OPERATION
Open the tool by first closing the jaws sufficiently for the ratchet mechanism to
release.
Crimping Terminals
1. There are 2 Tab Locator Blades supplied with the tool. One is for .187 and
.250 Tabs; the other is for .205 Tabs and .110 Tabs. Make sure the proper
blade is installed on the top of the locator and the other is stored on the
bottom of the locator.
2. Push the terminal onto the tab locator all the way to the stop in the nest. The
barrel of the terminal should be up. See Figure 1.
3. Partially close the tool to hold the terminal in place. See Figure 2.
4. Insert the properly stripped wire into the terminal barrel. See Figure 2 and 3. Cycle the tool.
Note: The tamper proof ratchet action will not release the tool until it has been fully closed.
5. Remove the crimp and inspect for proper crimp location, and check for insulation closure. Molex offers a Crimp Inspection
Handbook for closed barrel industrial product. See our website or contact your sales engineer.
6. If the insulation part of the crimp needs to be adjusted, first loosen the M4 screw on the bottom tool jaw, then insert a 3/32 hex
wrench (supplied) into the bottom of the lower die. See Figure 4. A clockwise (CW) rotation decreases insulation crimp while a
counter-clockwise (CCW) rotation increases insulation crimp. After adjusting retighten the M4 screw.
LOCATOR
JAWS OPEN
TAB LOCATOR
Fi
g
ure 1
TERMINAL

RHT-4754 Hand Crimp Tool
Doc No. 64003-7200 Release Date: 08-02-06 UNCONTROLLED COPY Page 3 of 6
Revision: A Revision Date: 08-02-06
Maintenance
It is recommended that each operator of the tool be made aware of, and responsible for, the following maintenance steps:
1. Remove dust, moisture and other contaminants with a clean brush, or soft, lint-free cloth.
2. Do not use any abrasive materials that could
damage the tool.
3. Make certain all pin, pivot points and bearing
surfaces are protected with a thin coat of high
quality machine oil. Do not oil excessively. The
64003-7200 (RHT-4754) was engineered for
durability, but like any fine piece of equipment it
needs cleaning and lubrication for a maximum
service life of trouble-free crimping. A light oil such
as 30 weight automotive oil used at the oil points
shown in Figure 4, every 5,000 crimps or 3 months
will significantly enhance the tool life and ensure a
stable calibration.
4. When tool is not in use, keep the handles closed to
prevent objects from becoming lodged in the crimping dies, and store the tool in a clean, dry area.
Miscrimps or Jams
Should this tool ever become stuck or jammed in a partially closed position, Do Not force the handles open or closed. The tool will
open easily by pressing the ratchet release lever. See Figure 5.
How To Adjust Tool Preload (See Figure 5)
Over the life of the tool, it may be necessary to adjust tool
handle preload force. Listed below are the steps required to
adjust the crimping force of the hand tool to obtain proper
crimp conditions:
1. Remove the screw and plastic cover washer. Note the
setting wheel position.
2. Lift the setting wheel off the axle. Turn the eccentric axle
with a screwdriver.
3. Turning the eccentric axle counter-clockwise will increase
handle force.
4. Replace the setting wheel to the axle, aligning the nearest
notch in the setting wheel to the dowel pin.
5. Replace the plastic cover washer and screw.
6. Check the crimp specifications after tool crimp force is adjusted.
LUBRICATION POINTS
(BOTH SIDES) LIGHT OIL
(EVERY 3 MONTHS
OR 5,000 CRIMPS)
Figure 4
LOOSEN
M4 SCREW
3/32”HEX
WRENCH
Figure 5
1.00
1.00
PRELOAD
TEST POINT
PRELOAD
TEST POINT
PRELOAD
ADJUSTMENT
LOCKING SCREW
RATCHET
RELEASE LEVER
PUSH UP

RHT-4754 Hand Crimp Tool
Doc No. 64003-7200 Release Date: 08-02-06 UNCONTROLLED COPY Page 4 of 6
Revision: A Revision Date: 08-02-06
“X ”NOT POSSIBLE TO PIN GAUGE, MEASURE A
CRIMPED UNINSULATED TERMINAL OR SLUG*
*SOLDER, LEAD OR
SIMILAR SOFT METAL
Tool Calibration
A Certificate of Calibration (See Last Page) was supplied with the tool. To recalibrate this Tool, a soft metal slug or solder should be
crimped in the conductor nest and the “X”Dimension measured in each conductor nest and compared to this chart. The tool should
be lubricated prior to recalibration to ensure consistent measurements. Handle preload is factory set to 25-45 LBS. See How to Adjust
Tool Preload (See Figure 7) to recalibrate.
Wire Range “X”Dimension
Conductor Crimp
Nest Color Code
Awg mm²Mean Go No Go
Red 22 - 18 0.35 - 0.80 .052 .049 .060
Blue 16 - 14 1.30 - 2.00 .061 .058 .069
CAUTION: Repetitive use of this tool should be avoided.
Warranty
This tool is for electrical terminal crimping purposes only. This tool is made of the best quality materials. All vital components are
long-life tested. All tools are warranted to be free of manufacturing defects for a period of 30 days. Should such a defect occur, we
will repair or exchange the tool free of charge. This repair or exchange will not be applicable to altered, misused or damaged tools.
This tool is designed for hand use only. Any clamping, fixturing, or use of handle extensions voids this warranty.
Hand held crimping tools are intended for low volume, prototyping, or repair requirements only.
CAUTION: Molex crimp specifications are valid only when used with Molex terminals, applicators and tooling.

RHT-4754 Hand Crimp Tool
Doc No. 64003-7200 Release Date: 08-02-06 UNCONTROLLED COPY Page 5 of 6
Revision: A Revision Date: 08-02-06
Figure 6
M4 X 25 LG
PAN HEAD SCREW
FOR SPRING
ACCESS SWING
OPEN COVER
6
SCREW AND PLASTIC
COVER FOR HANDTOOL
PRELOAD ADJUSTMENT
RATCHET
RELEASE LEVER
3
1
2
M4 X 12LG
PAN HEAD SCREW
M4 LOCKNUT W/
HEX NYLON INSERT
M4 FLAT WASHER
10 7
8
9
5
4
REPAIR KIT. ALL PARTS REQUIRED FOR
REPAIR. (ONLY MAIN SPRING SHOWN)
(2)
PARTS LIST
Item Order No Description Quantity
64003-7200 Hand Crimp Tool (Fig. 6)
1 64000-0076 Repair Kit (Springs, Pins and E-Rings) 1
2 63810-0000 Handle 1
3 64003-1175 Locator Assembly 1
4 64003-7270 Tooling Kit 1
Tooling Kit Only
5 64003-7202 Conductor Punch 1
6 64003-7201 Conductor Anvil 1
7 64003-7204 Insulation Punch 1
8 64003-7203 Insulation Anvil 1
9 N/A 4 mm Dia. by 5.0 mm Lg.Roll Pins 2**
10 N/A #10-32 by 5/16”Lg. Cup Pt. Set Screw 1**
** The following purchased parts are available from an Industrial supply company such as MSC (1-800-645-7270).

RHT-4754 Hand Crimp Tool
Doc No. 64003-7200 Release Date: 08-02-06 UNCONTROLLED COPY Page 6 of 6
Revision: A Revision Date: 08-02-06
Certificate of Calibration
Tool Order Number __________________
Tool Eng. Number ___________________
Tool Revision ___________________
Serial Number ___________________
Date of Manufacture__________________
Handle Load Range at 1 inch from the Tips =______________
Actual =_____________
Pin Gauge of Conductor Nest/Nests or Slug height if the nest is the “F”Crimp style.
Range Conductor Nest # 1 = ____________-- Actual = ______________
Range Conductor Nest # 2 = ____________-- Actual = ______________
Technician______________
Date of Calibration ______________
Calibration should be done every 5,000 cycles or 3 months.
Tools should be lubricated during this operation.
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