JST CMK-R Operation Manual Download Page 17

JST

 

   CMK-R INDUSTRY STANDARD APPLICATOR

 

 

 
 

 

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CMK-R Manual.doc 

 
 

17

 

15. Preventive maintenance 
 

Quality Statement 
 
The quality of a finished crimp is dependent on the use of the manufacturers specified application 
tooling that has been cleaned and maintained in accordance with the following schedule. 

 

Daily Care 
 
1.1 Turn off the crimping press and isolate from the electricity supply. Remove the safety covers 

from the crimping press. 

1.2 Clean all wire and terminal scrap from the tooling with the aid of a small paint brush.  

Caution 
The use of a pneumatic airline to clean the tooling should be avoided. Any debris on the tool will be 
blown away under great force and could either cause injury to persons nearby or be forced into 
moving parts of the tooling. 
 
1.3 Visually check the crimping dies, shear section and stripper blade for evidence of wear or 

damage. If any parts are damaged, please contact JST to order replacement parts.  

1.4 Check that there is a thin film of grease on the bearing surface of the ram, if necessary apply 

general-purpose grease to restore the lubrication. Do not over grease the ram, because the excess 

grease will either drip onto the tooling or will attract debris.  

1.5 Check that the dial settings are aligned correctly over the crimping punches and that they are 

correctly set to the pre-determined reference position. 

1.6 Check that the safety covers are in a good serviceable condition and replace on the tooling. 

Clean the polycarbonate safety cover with a general-purpose aerosol spray cleaner to restore 

good visibility. 

Weekly care, or when removing the applicator from the press for storage. 

In addition to the daily checks, the following maintenance should also be carried out on the tooling. 

2.1 Remove the crimping punches from the ram (part numbers are affixed 63*** or 64***), 

please note the sequence of dis-assembly so that the parts can be replaced in the correct 

order. Refer to the Dies Construction Sheet supplied with the tooling for the assembly 

order. 

2.2 Hold each crimping punch in a vice and with the aid of a piece of waste cloth apply a 

small amount of a good quality metal polish into the crimp form of the punch. 

2.3 Using a sawing motion, polish the form until a brilliant mirror-like finish is restored.  

2.4 Replace the crimping punches in the ram ensuring that the punches are free to move in a 

lateral axis when the retaining screw is fully tightened. 

Continued overleaf

 

Summary of Contents for CMK-R

Page 1: ...H 0 Quality Documents 2 Department Tech Serv Application tooling Applicators and Die sets TS142 01 CMK R Manual doc CMK R INDUSTRY STANDARD APPLICATOR OPERATION MANUAL...

Page 2: ...when ordering spare parts All JST Industry standard Applicators have been designed to operate in Industry standard presses with a shut height of 135 78mm If you have any doubt to whether our applicato...

Page 3: ...ion 4 2 Shear Blade 5 3 Stripper 5 4 Upper Die Parts 6 5 Lower Die Parts 7 6 Alignment Of Shear Blade Anvil A and B 8 7 Guide Plates Feed Plate 9 8 Terminal Feed Pitch 10 9 Pressure Pad Adjustment 11...

Page 4: ...her is called a downstroke cam this operates in the opposite manner which means the terminal feeds forward as the press travels to bottom dead centre this type of cam is commonly used when the applica...

Page 5: ...oat freely and almost certainly cause punch damage 3 TERMINAL STRIPPER 3 1 PURPOSE After the terminal has been successfully crimped on the wire the terminal may adhere to the punches the stripper assu...

Page 6: ...ten them down with a 5mm hexagon screw and check that they are not clamped and do move up and down freely 4 Conductor punch 144 5 Insulation punch 145 6 A Spacer wire spring are sometimes fitted betwe...

Page 7: ...ust be fitted in the correct order as detailed below 1 Shear blade anvil A 2 Shear blade anvil B 3 Conductor anvil 4 Insulation anvil When all the above are in place using 2 x 5mm hexagon screws gentl...

Page 8: ...xagon screws that attach the Die block to the Die Plate Bring the Ram down slowly to align the Shear Blade with the slot in the Shear blade Anvil When the Shear blade passes through the slot in the Sh...

Page 9: ...ck and secure tightly using 2 x 5mm hexagon screws Next fit the Anvil parts as described in section 5 Now you can fit the 2 guide plates using 4 x 4mm hexagon screws do not tighten Take a strip of the...

Page 10: ...is nut is to achieve the correct pitch of the feed finger as shown in 8 3 not to set the final position over the Anvil 8 2 The pitch of the Feed Finger is adjusted by loosening the Stroke adjustment b...

Page 11: ...inal is in the correct position when crimped See section 16 10 2 To adjust the position of the Feed finger loosen the M5 screw in the lever block 124 then carefully loosen the Ring nut 125 Once these...

Page 12: ...rminal Holder Depending on which terminal you are processing a Terminal holder is sometimes fitted to the Shear blade Anvil A The purpose of this part is to stop the terminal from lifting up with the...

Page 13: ...positioned incorrectly 11 3 Springs Feed Finger Spring The function of the Feed Finger Spring is to keep downward pressure on the feed finger to ensure consistent feeding of the Terminal Return Spring...

Page 14: ...s recommended that you start with the higher letter H to avoid any damaged being caused by over crimping To ensure that you have the correct crimp height there is a silver label fixed to the side of t...

Page 15: ...09 142 Stripper bracket 4007 4017 112 Shank 4006 4010 143 Identification plate 4007 4018 113 Block ring MA01 225 114 Stroke adjustment plate 4007 4008 144 Conductor punch 115 Stroke adjustment shaft M...

Page 16: ...s and Die sets TS142 01 CMK R Manual doc 16 14 CMK R Applicator exploded view 156 151 152 153 154 105 104 106 133 130 117 114 116 118 134 144 137 139 132 143 115 120 122 129 131 125 158 146 112 108 11...

Page 17: ...re the lubrication Do not over grease the ram because the excess grease will either drip onto the tooling or will attract debris 1 5 Check that the dial settings are aligned correctly over the crimpin...

Page 18: ...e to the bearing surfaces of the ram feed cam and cam roller assembly and replace in the body of the applicator 2 9 Apply a few drops of light machine oil to each of the pivot points on the feed arm m...

Page 19: ...23 3 4 Tensile tests at the crimped section 25 4 Correctly Crimped Conditions 25 4 1 Crimped Appearance 25 4 2 The crimped cross section must be correctly finished as shown to the right 25 4 3 All co...

Page 20: ...be used are correct 1 Use stranded wire or cord Check the wire size and the insulation colour 2 Refer to the applicable wires in the catalogue to determine which terminal type is necessary to match th...

Page 21: ...Strip the shielding cable as shown below 3 Do not excessively twist the conductors 3 Crimping 3 1 Precautions regarding crimping At first glance crimping terminals appears to be very easy However cri...

Page 22: ...ays concentrate on what you are doing 6 Work in a stable posture 7 Do not place any unnecessary objects on the die unit 8 To make sure that the operating conditions are correct manually cycle the pres...

Page 23: ...lity in crimp height 2 After the dies are replaced or the crimp height is changed and before trial crimping rotate the manual handle to make sure that the dies do not interfere with each other Even wh...

Page 24: ...to check that the insulation barrel is correctly crimped 1 Check that the wire insulation does not slip when the wire is bent in the order 1 2 and 3 shown the right 2 Cut off the insulation barrel at...

Page 25: ...rmal crimping manner using a tensile tester or push pull gauge A simple method of suspending a predetermined weight can also be used Slowly pull the sample so that it receives no abrupt shock Example...

Page 26: ...rs and Die sets TS142 01 CMK R Manual doc 26 4 3 All conductors must be crimped Uncrimped conductors are not acceptable 4 4 The lance must not be deformed 4 5 The terminal tip and mating part must not...

Page 27: ...ctly bell mouthed The A portion of the barrel must be bell mouthed The B portion of the barrel is not necessarily to be bell mouthed The C portion must be free of cracks 4 8 The terminal must be cut a...

Page 28: ...mplete crimping The conductors protrude excessively The conductors interfere with the tightening nut preventing the terminal from being installed The wire insulation is crimped at the wire barrel Poor...

Page 29: ...s correct Insulation barrel Check that the crimped shape and the crimp Heights are correct Appearance Check that the wire barrel is correctly bell mouthed Check that the wire is crimped at the correct...

Page 30: ...rv Application tooling Applicators and Die sets TS142 01 CMK R Manual doc 30 Reference It is best to make up the Crimping CheckList as shown below for convenient Checking CRIMPING CHECK LIST Date Prod...

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