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RHT2251 Hand Crimp Tool
Hand Crimp Tool Operating Instruction Sheet
And Specifications
Part No. 64001-4800
Eng. No. RHT 2251
(Replaces 19285-0022)
FEATURES
A full cycle ratchet ing hand too l ensures complete crimps
Long ha n dle s for comfortable cr imping with re du ced c rimp ing force
A precision user-friendly terminal locator wire stop holds terminals in the proper crimping position
Insulation crimp adjustment allows a precise insulation crimp. To meet or exceed the requirements
o f UL, CSA an d Militar y Cla ss II
Sin gle color-co de d c rimp pocket eliminates the p ossibility of using th e w rong pock et
SCOPE
InsulKrimp Female Quick Disconnect Te rminal for 10 -1 2 AW G.
Testing
Mechanical
The tensile test, or pull test, is a means of evaluating the mechanical properties of the crimped
connections. The following charts show t he UL specifications for various wire sizes. The tensile
strength is shown in pounds and indicates the minimum acceptable force to break or separ ate the
terminal from the conductor.
Wire Size (AWG) *UL - 310
12 70
10 80
*UL – 310 – Quick Disconnects
The following is a partial list of the product part numbers and their specifications that this too l is designed
t o ru n. W e w ill b e a dd ing to this list and an up to date copy is availab le on www.molex.com.
Wire Size: 10 – 12 AWG 5.00 – 3.00 mm²
Termina l N o.
19017-0047 C-2143 .375 9.53 .248 6.30
Terminal
Eng No. (REF)
Wire Strip Len gth Insu l. Dia. Max.
In mm In mm
Doc No. 64001- 4800 Release Date: 10-07-04
Revision: A Revision Date: 10-07-04
UNCONTROLLED COPY Page 1 of 7
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RHT2251 Hand Crimp Tool
OPERATION
Open the tool by first closing the jaws sufficiently for the ratchet
mechanism to release.
Crimping Terminals
1. Push up on the locator blade and position the terminal with
the barrel facing up into the color-coded nest with front
edge of the barrel against the locato r ( S ee Figure 1).
Release the locator blade to ho ld the t er minal in position.
2. Partially close the tool to ho ld the ter minal in place (See
Figure 2).
3. Insert the properly stripped wire into the terminal barrel
(See Figure 2 and 3). The wires end should butt against the
wire stop po sition of the locator. Cycle the tool.
Note: The tamper proof ra tchet actio n will n ot re lease th e tool unt il it has
been fully closed.
4. Lift the locator blade or wire stop and remove the crimped
terminal. Inspect for proper crimp locat ion, and check for
insulation closure. Locato r is adjustable up and down to
keep terminals straig ht afte r c rimping.
5. If the insulation part o f 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 t he bot tom of the lower die
(See Figure 5). A clockwise (CW) rotation decreases
insulation crimp while a coun ter -c lock wise ( CCW) rotation
INSULATION
PUNCH
TERMINA
L
WIRE
INSULATIO
N
LOCATOR
WIRE STOP
BUILT INTO
THE
CONDUCTO
R
CONDUCTO
R
Figure 3
JAWS OPEN
TERMINAL
FRONT
EDGE OF
BARREL
LOCATOR
PUSH UP
Figure 1
i
n
c
TERMINAL
r
e
Figure 2
WIRE
as es insulation crimp. After
adjusting retighten the M4 screw.
Note: Whenever crimping without
the locator , make sure the seam of
t he terminal is o riented u p or down
in the tool if using unbrazed product,
as th is will pro vide higher pull force
Doc No. 64001- 4800 Release Date: 10-07-04
Revision: A Revision Date: 10-07-04
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RHT2251 Hand Crimp Tool
values.
Doc No. 64001- 4800 Release Date: 10-07-04
Revision: A Revision Date: 10-07-04
UNCONTROLLED COPY Page 3 of 7
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RHT2251 Hand Crimp Tool
RATCHET
Maintenance
It is recommended that each operato r of
the to ol be made aware of, and responsible
fo r, the following mainte n ance st ep s:
1. Remove dust, moisture, and ot her
contaminants with a clean brush,
LOOSEN M4
SCREW
or so ft, lint free cloth.
2. Do not use any abrasive materials
that could damage the too l.
3/32” HEX
WRENCH
3. Make certain all pins; pivot points
and bearing surfaces are prot ected
with a thin coat of high quality
Figure 4
machine oil. Do not oil
excessively. The 64001-4800
(RHT-2251) was engineered for dur ability, but like any fin e p iece of equipment it needs
cleaning and lub ric ation for a ma x imum servic e life of trouble-fr ee crimpin g. A lig ht oil, s uch
as 30 weight automotive oil used at t he o il points shown in Figure 4, every 5,000 crimps or 3
mo n ths will signific antly enhanc e the t ool life an d e nsure a stable calib ra tion .
4. When tool is not in use, keep the handles closed to prevent objects from becoming lodged in the
crimping dies, and st ore the tool in a clean, dry area.
Miscrimps or Jams
1. Should this tool ever become stuck
o r ja mmed in a partia lly closed
position, Do Not force the handles
open or closed. The tool will open
easily by lifting the ratc het r elease
lever (See Fig.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 for ce of the hand tool to obtain proper
crimp conditio ns:
1. Remove the screw and plast ic cover washer. No te 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 (CCW) will increase hand le force .
4. Replace the setting wheel to the axle, aligning the nearest no tch in the setting wheel to the dowel
pin.
5. Replace the plastic cover washer and screw.
6. Check the crimp specifications after to ol handle preload force is adjusted.
RELEASE
LEVER
PRELOAD
ADJUSTMENT
LOCKING
LUBRICATION PO INTS
(BOTH SIDES)
LIGHT OIL (EVERY 3
MONTHS
PRELOAD
TEST
PRELOAD
TEST
1.00
1.00
Figure 5
Doc No. 64001- 4800 Release Date: 10-07-04
Revision: A Revision Date: 10-07-04
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RHT2251 Hand Crimp Tool
“ CONFINING”
Tool Cali bration
PIN GAUGE IN
CONDUCTOR
A Cer tificate of Calibration (s ee last page ) was supplied w ith
the to ol. To recalibrat e this tool, pin gauge measurements
should be taken in each conductor nest and co mpared t o this
chart. The t ool should be lubricated prior to recalibrat ion to
ensure consistent measurements. Handle preload is factor y set
to 25-45 LBS. See How to Adjust Too l Preload (see Figure 6)
to recalibrate.
Nest Color Code
Wire
Range
AWG mm² Mean Go No Go
“X” Dimension
Conductor Crimp
Crimp Inspection
Marking
Yellow 10 - 12 5.00 – 3.00 .127 .124 .132 o
Warranty
Th is tool is for electric al terminal crimping pu rpose s only. T his tool is mad e of the best quality materia ls.
All vital co mponents are long life test ed. All tools are warranted to be free of manufacturing defects for a
period of 30 days. Should such a defect o cc ur , we will rep air or e xchange the tool free of cha rge. This
repair o r e xch ange will not be applica b le to alter ed, misused or da maged tools . This tool is designe d for
hand u s e only. Any clamping, fixt uring, or use of handle exte ns ions vo id s this warra nty.
Hand held crimping tools are intended for low volume, p rototyping, or repair re qu iremen ts only.
Caution: Repetitive use of this tool should be avoided.
X
Doc No. 64001- 4800 Release Date: 10-07-04
Revision: A Revision Date: 10-07-04
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RHT2251 Hand Crimp Tool
FOR SPRING
PARTS LIST
Item Order No. Description Quantity
1 64000-0076 Repair Kit (Springs, Pins and E-Rings) 1
2 63810-0000 Handle 1
3 64001-4875 Locator Assembly 1
4 64001-4870 Tooling Kit 1
5 64001-4802 Conductor Punch 1
6 64001-4801 Conductor Anvil 1
7 64001-4804 Insulation Punch 1
8 64001-4803 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 (1-800645-7270).
M4 WING NUT
3
5
6
10
64001-4800 Hand Crimp Tool (Fig.7)
Tooling Kit Only
2
M4 FLAT
(2)
9
ACCESS
1
SWING
REPAIR KIT. ALL PARTS
7
8
4
Figure 6
REQUIRED FOR
RATCHET
RELEASE
SCREW AND
PLASTIC
COVER FOR
M4 X 12LG
PAN
M4 X 30LG
PAN HEAD
Doc No. 64001- 4800 Release Date: 10-07-04
Revision: A Revision Date: 10-07-04
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RHT2251 Hand Crimp Tool
Tool Order Number __________________
Tool Eng. Number ___________________
Tool Revision ___________________
Serial Number ___________________
Date of Manufacture__________________
Pin Gauge of Conducto r Nest /Nests or Slug height if the nest is the “F” Crimp style.
Range Conductor Nest # 1 = ____________-- Actual = ______________
Range Conductor Nest # 2 = __N/A
Range Conductor Nest # 3 = __N/A_______-- Actual = ______________
Technician ______________
Date of Calibration ______________
Calibration should be done every 5,000 cycles or 3 months.
Tools should b e lu bricated du ring this o pe ra tion .
Certificate of Calibration
Handle Load Range at 1 inch from the Tips =______________
Actual =_____________
_______-- Actual = ______________
Molex Application Tooling Group
1150 E. Diehl Road
Naper ville, IL 60563
Tel: (630) 969-4550;
Fax: (630) 505-0049
Doc No. 64001- 4800 Release Date: 10-07-04
Revision: A Revision Date: 10-07-04
UNCONTROLLED COPY Page 7 of 7
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