molex RHT-5770 Operating Instruction And Specifications Sheet Download Page 5

RHT-5770 Hand Crimp Tool 

Doc No.  64001-3200  Release Date: 11-11-03 

UNCONTROLLED COPY

 

Page 5 of 8 

Revision: B 

Revision Date: 05-24-04 

 

How to Adjust Tool Preload 

(See Figure 6) 

 

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 (CCW) 

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 handle preload force is adjusted. 

 

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 
before recalibration to ensure consistent measurements.  
Handle preload is factory set to 25-45 LBS. See How to 
Adjust Tool Preload (see Figure 6) to recalibrate. 

 

Wire Range 

“X” Dimension Conductor Crimp 

Nest Color Code 

AWG mm² 

Mean  

Go 

No Go 

Crimp Inspection Marking 

Red 

18 - 22  0.35 - 0.80 

.092 

.090 

.094 

--- 

Blue 

14 - 16  1.30 - 2.00 

.107 

.104 

.109 

--- 

Yellow 

10 - 12  3.30 - 5.00 

.141 

.138 

.144 

--- 

 

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 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 alter, 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. 
 

RATCHET 

RELEASE LEVER 

PUSH UP 

PRELOAD 

TEST POINT 

1.00 

1.00 

Figure 6

 

PRELOAD 

ADJUSTMENT 

LOCKING SCREW

 

PRELOAD 

TEST POINT

 

PIN GAUGE IN 

CONDUCTOR CRIMP 

“ CONFINING” CRIMP 

“ X ” 

Summary of Contents for RHT-5770

Page 1: ...is list and an up to date copy is available on www molex com Wire Size 18 22 AWG 0 80 0 35 mm Wire Strip Length Insul Dia Max Terminal No Terminal Eng No REF In mm In mm 19040 0001 19040 0001 300 7 60...

Page 2: ...438 11 12 310 7 87 19164 0074 SC 2YCX 438 11 12 310 7 87 OPERATION Open the tool by first closing the jaws sufficiently for the ratchet mechanism to release Crimping Terminals 1 Push up on the locato...

Page 3: ...RHT 5770 Hand Crimp Tool Doc No 64001 3200 Release Date 11 11 03 UNCONTROLLED COPY Page 3 of 8 Revision B Revision Date 05 24 04...

Page 4: ...oisture 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 pins pivot points and bearing surfaces are p...

Page 5: ...uctor nest and compared to this chart The tool should be lubricated before recalibration to ensure consistent measurements Handle preload is factory set to 25 45 LBS See How to Adjust Tool Preload see...

Page 6: ...RHT 5770 Hand Crimp Tool Doc No 64001 3200 Release Date 11 11 03 UNCONTROLLED COPY Page 6 of 8 Revision B Revision Date 05 24 04 Caution Repetitive use of this tool should be avoided...

Page 7: ...LEVER 3 1 2 M4 X 30LG PAN HEAD SCREW REPAIR KIT ALL PARTS REQUIRED FOR REPAIR ONLY MAIN SPRING SHOWN 5 M4 X 12LG PAN HEAD SCREW 6 M4 FLAT WASHER M4 WING NUT PARTS LIST Item Order No Description Quanti...

Page 8: ...at 1 inch from the Tips _______________ Actual _______________ Pin Gage of Conductor Nest Nests or Slug height if the nest is the F Crimp style Range Conductor Nest 1 ______________Actual ____________...

Page 9: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Molex 64001 3200...

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