RHT2251 Hand Crimp Too l
Do c No. 64001-4800 Release Date: 10-07- 04UNCONTROLLED COP Y Page 1 of 7
Revision: A Revision Date: 10-07-04
Hand Cr imp T ool Operating Instruction Sheet
And Specifica tions
Part No. 64001-4800
Eng. No. RHT 2251
(Replaces 19285-0022)
FEATURES
A full cycle ratchet ing hand tool ensures comp lete cr imps
L ong ha ndles for comfortab le crimp ing with reduced crimp in g force
A precision user-friendly terminal lo cator wire sto p ho lds t erminals in the proper cr imping positio n
Insulation crimp adjustment allows a pr ecise insulat ion crimp. To meet or exceed t he requirement s
of U L, C SA an d Military Class II
Sin gle color-coded crimp pocket elimin ates the possibility of using the wron g pocket
SCOPE
InsulKrimp Female Quick Disconnect Terminal for 10-1 2 AWG.
Testing
Mechanical
The t ensile test, or pull test, is a means of evaluating the mechanical properties of the crimped
co nnectio ns. T he following charts show the UL specifications fo r various wire sizes. T he t ensile
st r engt h is shown in pounds and indicates the minimu m accept able force to break or separ ate the
t er minal fro m the conduct or.
Wire Size (AWG) *UL - 310
12 70
10 80
*UL – 310 – Quick Disconnects
The follo wing is a part ial list of the pro duct part numbers and their specificat ions that this t ool is designed
to ru n. We will b e add in g to this list a nd an up to date copy is av ailable on www.molex.com.
Wire Siz e : 10 – 12 AWG 5. 00 – 3. 00 mm²
Wire S trip L ength In su l. Dia. Max .
Terminal N o. Terminal
Eng No. (REF) In mm In mm
19017-0047 C-2143 .375 9.53 .248 6.30
RHT2251 Hand Crimp Too l
Do c No. 64001-4800 Release Date: 10-07- 04UNCONTROLLED COP Y Page 2 of 7
Revision: A Revision Date: 10-07-04
Figure 2
TERMINAL WIRE
WIRE STOP
BUILT INTO
THE
LOCATOR
WIRE
INSULATION
PUNCH
CONDUCTO
R INSULATIO
N
Figure 3
CONDUCTO
R
TERMINA
L
OPERATION
Open the tool by first closing the jaws sufficiently for the ratchet
mechanism t o release.
Crimping Terminals
1. Push up on t he locat or blade and position the t er minal with
t he barrel facing up into the color- coded nest with front
edge o f the bar r el against the locator ( See Figur e 1) .
Release the lo cator blade to ho ld the t er minal in po sitio n.
2. Partially close t he t oo l to ho ld the ter minal in place (S ee
Figure 2).
3. Insert the properly stripped wire into the terminal barrel
(See Figur e 2 and 3). The wires end should but t against the
wir e stop position of the locato r . Cycle t he t ool.
Note: The ta mper p roof ratch et action will n ot release the tool until it has
been fully clo sed.
4. Lift the lo cato r blade or wire sto p and remo ve t he crimped
t er minal. Inspect for pr oper cr imp lo cation, and check for
insulat ion closur e. Lo cator is adjust able up and down t o
keep terminals straight a fter cr imping.
5. If the insulat io n part o f the crimp needs to be adjust ed, first
loosen the M4 screw on the bottom tool jaw, then insert a
3/32 hex wrench (supplied) into the bott om of the lo wer die
(See Figur e 5) . A clockwise (CW) rot ation decreases
insulation crimp while a counter- clockwise (C CW ) rotation i
n
c
r
e
ases insulation crimp . After
adjusting retighten the M4 screw.
Note: Whenever crimping wit ho ut
t he locat or , make sure the seam of
the te rminal is orien ted up or down
in the t oo l if using unbrazed product,
as th is will provide h igher pull force
TERMINAL
JAWS OPEN
Figure 1
FRONT
EDGE OF
BARREL
LOCATOR
PUSH UP
RHT2251 Hand Crimp Too l
Do c No. 64001-4800 Release Date: 10-07- 04UNCONTROLLED COP Y Page 3 of 7
Revision: A Revision Date: 10-07-04
values.
RHT2251 Hand Crimp Too l
Do c No. 64001-4800 Release Date: 10-07- 04UNCONTROLLED COP Y Page 4 of 7
Revision: A Revision Date: 10-07-04
PRELOAD
ADJUSTMENT
LOCKING
1.00
1.00
RATCHET
RELEASE
LEVER
PRELOAD
TEST
PRELOAD
TEST
Figure 5
Maintenance
It is recommended t hat each op er ator of
t he t ool be made aware of, and responsible
for , the followin g main ten an ce ste ps:
1. Remove dust, moist ur e, and other
co nt aminant s wit h a clean brush,
o r soft, lint free clot h.
2. Do no t use any abrasive materials
t hat could damage the too l.
3. Make certain all pins; pivot points
and bear ing surfaces are pr otect ed
with a thin coat of high quality
mach in e oil. Do n ot oil
excessively. T he 64001-4800
(RHT- 2251) was engineered for dur ability, b ut like any fin e piece of equipment it needs
clean in g and lub ric ation for a max imum service life of trou b le-free crimping. A ligh t oil, s uch
as 30 weight auto motive o il used at the oil points shown in Figure 4, every 5, 000 cr imps o r 3
months will sign ificantly e n han ce th e tool life and ens ur e a stable calibration.
4. When tool is not in use, keep t he handles clo sed to pr event object s from becoming lodged in the
crimping dies, and store the t oo l in a clean, dr y area.
Miscrimps or Jams
1. Should this t oo l ever become stuck
or jammed in a par tially clos ed
position, Do Not force the handles
open or closed. Th e tool will open
easily by lift ing the ratchet r elease
lever (See Fig.5).
How To Adjust Tool Preload (See
Figure 5)
Over the life of the t oo l, it may be
necessary t o adjust too l handle pr eload
force. List ed below are the steps r equired t o adjust the crimp ing fo r ce of t he hand too l to obtain pr oper
crimp conditions:
1. Remove the screw and plast ic cover washer. Not e the set ting wheel po sit ion.
2. Lift the setting wheel o ff t he axle. Tu r n t he eccentric axle with a screwdriver.
3. Tur ning the eccentric axle co unter - clockwise ( CCW) will in crease handle force.
4. Replace the setting wheel t o the axle, aligning t he nearest no tch in the set ting wheel t o the dowel
pin.
5. Replace the plast ic cover washer and scr ew.
6. Check the crimp specifications aft er too l handle preload fo r ce is adjusted.
LUBRICATIO N POINT S
(BOTH SIDES)
LIGHT OIL (EVERY 3
MONTHS
LOOSEN M4
SCREW
Figure 4
3/32” HEX
WRENCH
RHT2251 Hand Crimp Too l
Do c No. 64001-4800 Release Date: 10-07- 04UNCONTROLLED COP Y Page 5 of 7
Revision: A Revision Date: 10-07-04
T ool C al ibration
A Certificate of C alibration (see last page) w as supplied w ith
t he t oo l. To r ecalibrate t his t oo l, pin gauge measurement s
should be taken in each conductor nest and compared t o this
chart. The t ool shou ld be lubricated prio r to recalibrat ion to
ensure consist ent measurements. Handle pr eload is fact ory set
t o 25-45 LBS. See Ho w to Adjust T oo l Preload ( see Figure 6)
to recalibrate.
Wire
Range “X” Dimension
Conductor Crimp
Nest Color Code AWG mm² Mean Go No Go
Crimp Insp ect i o n
Marking
Yell ow 10 - 12 5.00 – 3.00 .127 .124 .132 o
Warranty
This tool is for electrical terminal crimping purp oses only. T his tool is made of the best quality ma terials.
All vit al component s ar e lo ng life tested. All t ools ar e war r ant ed to be free of manufactur ing defects fo r a
period of 30 days. Should such a defect occur , w e will re pair or e x chan ge th e tool free of char ge. This
repair or exch an ge will not b e applicable to altered, mis used or damaged tools. T his tool is designed for
hand u s e only. Any clamping, fixt ur ing, or use of hand le e xtensions voids this wa rranty.
Han d held crimp ing tools are inte nded for low v olume, prototyping, or r epair requir ements only.
Caution: Repetitive use of this tool should be avoided.
PIN GAUGE IN
CONDUCTOR
“ CONFINING”
X
RHT2251 Hand Crimp Too l
Do c No. 64001-4800 Release Date: 10-07- 04UNCONTROLLED COP Y Page 6 of 7
Revision: A Revision Date: 10-07-04
Figure 6
M4 X 30LG
PAN HEAD
FOR SPRING
ACCESS
SWING
6
SCREW AND
PLASTIC
COVER FO R
RATCHET
RELEASE
3
1
2
M4 X 12LG
PAN
M4 WING NUT
M4 FLAT
10 7 8
9
5
4 REPAIR KIT. ALL PARTS
REQUIRED FOR
(2)
PA R T S L I ST Item Order No. Description Quantity
64001-4800 Hand Crimp Tool (Fig.7)
1 64000-0076 Re pair Kit (Springs, Pins and E-Rings) 1
2 63810-0000 Handle 1
3 64001-4875 Locator Assembly 1
4 64001-4870 Tooling Kit 1
Tooling Kit Only
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 m m Lg.Rol l Pins 2**
10 N/A #10-32 by 5/ 16” Lg. Cup Pt. Set Sc rew 1**
** The fo llowing purchased part s are available from an Industrial supply co mpany such as MSC (1- 800-
645-7270).
RHT2251 Hand Crimp Too l
Do c No. 64001-4800 Release Date: 10-07- 04UNCONTROLLED COP Y Page 7 of 7
Revision: A Revision Date: 10-07-04
Certif ic ate of Calibr ation
To ol Or der Number __________________
To ol E ng. Number ___________________
To ol Revision ___________________
Serial Number ___________________
Dat e o f Manufactur e__________________
Handle Lo ad Range at 1 inch fro m t he Tips =______________
Actual =_____________
Pin Gauge of Conductor Nest/Nests o r Slug height if the nest is the “F” C rimp style.
Range Conducto r Nest # 1 = ____________- - Actual = ______________
Range Conducto r Nest # 2 = __N/A_______-- Actual = ______________
Range Conducto r Nest # 3 = __N/A_______-- Actual = ______________
Technician ______________
Dat e o f Calibration ______________
Calibrat io n should be done every 5,000 cycles or 3 mo nths.
Tools shou ld be lubricated during th is operation.
M olex Application Tooling Gr oup
1150 E. Diehl Ro ad
Naperville, I L 60563
Tel: (630) 969- 4550;
Fax: (630) 505- 0049
