Molex RHT 2251-CC Manuale utente

RHT2251-CC Hand Crimp Tool

Doc No. 64001-4900 Release Date: 10-15-04 UNCONTROLLED COPY Page 1 of 6

Revision: A Revision Date: 10-15-04

Hand Crimp Tool

Operating Instruction Sheet

And Specifications

Part No. 64001-4900

Eng. No. RHT 2251-CC

(Replaces 19285-0023)

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



Single color-coded crimp pocket eliminates the possibility of using the wrong pocket

SCOPE

AviKrimpFully Insulated Quick Disconnect Female Couplers and, Perma-SealFully Insulated Snap Plug Receptacles 10 - 16 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 - 486 A *UL - 310

16 30 30

14 50 50

12 70 70

10 80 80

UL - 310 - Quick Disconnects Couplers

*UL - 486 A - Terminals (Copper conductors only)

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: 14 – 16 AWG 2.00 – 1.30 mm²

Wire Strip Length Insul. Dia. Max.

Terminal No. Terminal Eng No. (REF) In mm In mm

19164-0054 SBRB-8156N .300 7.60 N/A N/A

19164-0055 SBRB-8180N .300 7.60 N/A N/A

Wire Size: 10 – 12 AWG 5.00 – 3.30 mm²

Wire Strip Length Insul. Dia. Max.

Terminal No. Terminal Eng No. (REF) In mm In mm

19005-0010 C-2265 .313 7.94 .275 6.99

RHT2251-CC Hand Crimp Tool

Doc No. 64001-4900 Release Date: 10-15-04 UNCONTROLLED COPY Page 2 of 6

Revision: A Revision Date: 10-15-04

Note: The tamper proof ratchet action will not release the tool until it has been fully closed.

Note: Whenever crimping without the locator, make sure the seam of the terminal is oriented

up or down in the tool if using unbrazed product, as this will provide higher pull force values.

Figure 3

WIRE

PUNCH

INSERT

CONDUCTOR

ANVIL

TERMINAL

LOCATOR

CONDUCTOR

PUNCH

ANVIL

INSERT

WIRE STOP

BUILT INTO

TERMINAL

Figure 2

TERMINAL

WIRE

OPERATION

Open the tool by first closing the jaws sufficiently for the ratchet

mechanism to release.

Crimping Terminals

1. Adjust the locator up or down until the terminal being run sits flat

and straight in the tool.

2. Position the terminal with the barrel facing up into the color-coded

nest. Make sure the end of the terminal fits into the locator

pocket securely and the front edge of the barrel is flush against

the front edge of the locator, (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). The wire insulation will stop against the taper of the

terminal. Cycle the tool.

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

POCKET OF

LOCATOR

Figure 1

TERMINAL

RHT2251-CC Hand Crimp Tool

Doc No. 64001-4900 Release Date: 10-15-04 UNCONTROLLED COPY Page 3 of 6

Revision: A Revision Date: 10-15-04

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 64001-4900 (RHT-2251-CC)

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.

Figure 5

PRELOAD

ADJUSTMENT

LOCKING SCREW

1.00

PRELOAD

TEST POINT

PRELOAD

TEST POINT

RATCHET

RELEASE LEVER

PUSH UP

Figure 4

LUBRICATION POINTS

(BOTH SIDES) LIGHT OIL

(EVERY 3 MONTHS

OR 5,000 CRIMPS)

LOOSEN M4

SCREW

3/32”HEX

WRENCH

RHT2251-CC Hand Crimp Tool

Doc No. 64001-4900 Release Date: 10-15-04 UNCONTROLLED COPY Page 4 of 6

Revision: A Revision Date: 10-15-04

Caution: Repetitive use of this tool should be avoided.

Tool Calibration

A Certificate of Calibration (see last page) was supplied with the tool. To

recalibrate this tool, pin gauge measurements should be taken 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 5) to

recalibrate.

Wire Range “X”Dimension

Conductor Crimp

Nest Color Code

AWG mm²Mean Go No Go

Crimp

Inspection

Marking

10 - 12 5.00 – 3.30 .127 .124 .132 o

Yellow 14 - 16 1.30 - 2.00 .127 .124 .132 o

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.

PIN GAUGE IN

CONDUCTOR CRIMP

“Confining ”Crimp

RHT2251-CC Hand Crimp Tool

Doc No. 64001-4900 Release Date: 10-15-04 UNCONTROLLED COPY Page 5 of 6

Revision: A Revision Date: 10-15-04

Figure 6

M4 X 25LG

PAN HEAD SCREW

FOR SPRING

ACCESS SWING

OPEN COVER

SCREW AND PLASTIC

COVER FOR HANDTOOL

PRELOAD ADJUSTMENT

RATCHET

RELEASE LEVER

M4 X 12LG

PAN HEADSCREW

M4 LOCKNUT W/

HEX NYLON

M4 FLAT WASHER

10 7

REPAIR KIT. ALL PARTS REQUIRED FOR

REPAIR. (ONLY MAIN SPRING SHOWN)

(2)

PARTS LIST

Item Order No Description Quantity

64001-4900 Hand Crimp Tool (Fig. 6)

1 64000-0076 Repair Kit (Springs, Pins and E-Rings) 1

2 63810-0000 Handle 1

3 64001-4975 Locator Assembly 1

4 64001-4970 Tooling Kit 1

Tooling Kit Only

5 64001-4802 Conductor Punch 1

6 64001-4801 Conductor Anvil 1

7 64001-4904 Insert Punch 1

8 64001-4911 Insert 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).

RHT2251-CC Hand Crimp Tool

Doc No. 64001-4900 Release Date: 10-15-04 UNCONTROLLED COPY Page 6 of 6

Revision: A Revision Date: 10-15-04

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 = ___N/A______-- Actual = ______________

Range Conductor Nest # 3 = ___N/A______-- Actual = ______________

Technician ______________

Date of Calibration ______________

Calibration should be done every 5,000 cycles or 3 months.

Tools should be lubricated during this operation.

Molex Application Tooling Group

1150 E. Diehl Road

Naperville, IL 60563

Tel: (630) 969-4550

Fax (630) 505-0049

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