CommScope PRO-CRIMPER III User manual

408-8738
Revision U, Sept. 2019
www.commscope.com
PRO-CRIMPER III
Hand Crimping Tool 790163-[ ]
© 2017 CommScope, Inc.
All rights reserved
This product is covered by one or more U.S.
patents or their foreign equivalents. For patents, see
www.commscope.com/ProductPatent/ProductPatent.aspx
Page 1 of 6
To obtain information on CommScope
®
products, visit our website at
http://www.commscope.com/SupportCenter/TechnicalSupport.aspx
1. Introduction
PRO-CRIMPER III Hand Crimping Tool Assembly 790163-[ ] consists of PRO-CRIMPER III Hand Tool Frame and
die assemblies listed in Table 1.
The tool assembly is used to crimp the contacts and the internal and external strain reliefs of the modular plugs
listed in Table 1. The tool frame features a stationary jaw and handle, a moving jaw and handle, and an adjustable
ratchet that ensures full crimping. The tool frame holds the die assembly. Refer to Figure 1.
The die assembly consists of an insulation stuffer, wire stuffer, housing support, housing guides, and mounting
and retaining hardware.
Read these instructions thoroughly before using the hand tool assembly.
Note: Dimensions in this instruction sheet are in millimeters (inch). Figures and illustrations are for reference
only and are not drawn to scale.
PRO-CRIMPER III hand crimping tool is commercial grade and is designed primarily for field installation, repair,
maintenance work, and prototyping in industrial, commercial, and institutional applications. Products crimped with
this tool will meet the crimp height requirement for hand tools in the appropriate application specification (114-
series), but may not comply with other feature parameters of this document.
For additional information, visit our website or contact your local CommScope account representative.
Figure 1. PRO-CRIMPER III Hand Tool
Ratchet
adjustment
wheel
Moving jaw
Die assembly
Stationary jaw
Back of tool
Pivot pin
PRO-CRIMPER III
Hand Crimping Tool
frame 354940-1
Stationary
handle
Moving handle
Complete tool with die set includes
JacKnack Tool 2119000-1

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Instruction Sheet www.commscope.com
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Table 1. Hand Tool Die Assemblies
* Includes JacKnack Tool
† For additional modular plug part numbers, visit our website or contact your local CommScope account representative.
2. How to Contact Us
To find out more about CommScope® products, visit us on the web at www.commscope.com/
For technical assistance:
-Within the United States, contact your local account representative or technical support at
1-800-344-0223. Outside the United States, contact your local account representative or
PartnerPRO™Network Partner.
-Within the United States, report any missing/damaged parts or any other issues to
CommScope Customer Claims at 1-866-539-2795 or email to claim[email protected].
Outside the United States, contact your local account representative or PartnerPRO
Network Partner.
MODULARPLUG CABLE
HandTool
W/Dieset DieSet
(only)
CATEGORY PART
NUMBER
TYPE WIRE
INSULATION 
DIAMETER
(MM[IN.])
OUTSIDE
DIAMETER 
(MM[IN.])
W
IRESIZE 
RANGE
(AWG)
WIRESIZE 
TYPE



790163‐1



790163‐2
5eEMT 6‐2111986‐[] UTPorFTPstranded 0.89‐1.09[.035‐.043] 5.1‐6.0[.201‐.236] 24‐26 stranded
5eEMT 6‐2111986‐[] UTPorFTPstranded 0.89‐1.09[.035‐.043] 5.1‐6.0[.201‐.236] 23‐24 solid
66‐2111981‐[] UTPorFTPstrandedorsolid 0.89‐1.09[.035‐.043] 5.1‐6.0[.201‐.236] 24‐26 stranded
66‐2111981‐[] UTPorFTPstrandedorsolid 0.89‐1.09[.035‐.043] 5.1‐6.0[.201‐.236] 23‐24 solid
66‐2111979‐[] UTPorFTPstrandedorsolid 0.89‐1.09[.035‐.043] 5.1‐6.0[.201‐.236] 24‐26 stranded
66‐2111979‐[] UTPorFTPstrandedorsolid 0.89‐1.09[.035‐.043] 5.1‐6.0[.201‐.236] 23‐24 solid



790163‐5



790163‐6
5eEMT 6‐2111988‐3UTPorFTPstranded 0.89‐1.09[.035‐.043] 5.7‐7.0[.224‐.276] 24‐26 stranded
5eEMT 6‐2111988‐3UTPorFTPstranded 0.89‐1.09[.035‐.043] 5.7‐7.0[.224‐.276] 23‐24 solid
66‐2111989‐[] UTPorFTPstrandedorsolid 0.89‐1.09[.035‐.043] 5.7‐7.0[.224‐.276] 24‐26 stranded
66‐2111989‐[] UTPorFTPstrandedorsolid 0.89‐1.09[.035‐.043] 5.7‐7.0[.224‐.276] 23‐24 solid
6A 6‐2111984‐[] PiMFSolidorStranded 0.89‐1.09[.035‐.043] 5.7‐7.0[.224‐.276] 24‐26 stranded
6A 6‐2111984‐[] PiMFSolidorStranded 0.89‐1.09[.035‐.043] 5.7‐7.0[.224‐.276] 23‐24 solid

790163‐7


790163‐8
5eEMT 6‐2111976‐[] UTPorFTPstranded 0.89‐1.09[.035‐.043] 4.7‐5.5[.185‐.217] 24‐26 stranded
5eEMT 6‐2111976‐[] UTPorFTPstranded 0.89‐1.09[.035‐.043] 4.7‐5.5[.185‐.217] 23‐24 solid
66‐2111977‐[] UTPorFTPstrandedorsolid 0.89‐1.09[.035‐.043] 4.7‐5.5[.185‐.217] 24‐26 stranded
66‐2111977‐[] UTPorFTPstrandedorsolid 0.89‐1.09[.035‐.043] 4.7‐5.5[.185‐.217] 23‐24 solid
1‐790163‐0
1‐790163‐1
61933433‐1UTPorFTPstrandedorsolid 1.12‐1.22[.044‐.048] 6.99‐7.87[.275‐.310] 22‐28 stranded
61933433‐1UTPorFTPstrandedorsolid 1.12‐1.22[.044‐.048] 6.99‐7.87[.275‐.310] 22‐28 solid
61499598 UTPorFTPstrandedorsolid 1.22‐1.32[.048‐.052] 6.99‐7.87[.275‐.310] 22‐28 stranded
61499598 UTPorFTPstrandedorsolid 1.22‐1.32[.048‐.052] 6.99‐7.87[.275‐.310] 22‐28 solid

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Instruction Sheet
Page 3 of 6
3. Reference Material
PROPER USE GUIDELINES: Cumulative trauma disorders can result from the prolonged use of manually
powered hand tools. Hand tools are intended for occasional use and low volume applications. A wide selection of
powered application equipment for extended-use, production operations is available.
3.1 Revision Summary
Content Updated
4. Installation and Removal of Die Assembly
1. Close the tool handles until the ratchet releases, then allow the handles to open fully. If present, remove both
retaining screws from the tool frame.
2. Orient the insulation stuffer as shown in Figure 2, and insert it into the stationary jaw of the tool frame. Align
the holes with the associated holes in the tool frame. Insert the short retaining pins and short retaining screw
into the holes in the tool frame. Tighten the screw.
3. Orient the housing support as shown in Figure 2, and insert it into the moving jaw of the tool frame. Align the
holes with the associated holes in the tool frame. Orient the right housing guide as shown, and mount it onto
the tool frame using the long retaining pins. Insert the long retaining screw through the hole in the right housing
guide. Tighten the screw.
4. Refer to Figure 2. Orient the left housing guide as shown, and secure it onto the tool frame using the tension
adjusting nut. Tighten the tension adjusting nut using an assembled modular plug connector assembly.
Note: Adjust the tension adjusting nut to allow the assembly to fit (snugly).
5. Carefully close the tool handles, making sure that the parts align properly.
6. To disassemble, close the tool handles until the ratchet releases. Remove the nut, screws, housing guides,
retaining pins, housing support, and insulation stuffer out of the tool frame jaws.
Figure 2. Tool Setup

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5. Crimping Procedure
Before proceeding, refer to the applicable Application Specification: 114-22008 (Category 5E EMT) or
114-13035 and 114-93006 (Category 6 shielded), and ensure the following:
 Modular plug and cable are compatible
 Cable polarity is properly maintained
 Modular plug is properly crimped and assembled
CAUTION: Make sure that the modular plug shield is fully bottomed onto the body. With some cables
containing shielded twisted pairs, this is especially IMPORTANT to check.
Figure 3. Position of Modular Plug Before Crimping
1. Close the tool handles until the ratchet releases, then allow the handles to open FULLY.
2. Hold the tool so that the back is facing you. Insert the modular plug (including shield and cable) in the crimping
chamber until it bottoms. Refer to Figure 3.
3. While holding the assembly, carefully close the tool handles until the ratchet releases, then allow the handles
to open FULLY.
Note: This tool terminates three areas of the modular plug. For proper alignment, make sure to apply forward
pressure on the cable while closing the tool handles.
4. Remove the modular plug from the tool, and make sure that the crimp requirements are met according to the
applicable application specification (refer to first paragraph of Section 5).
If necessary, adjust the tool ratchet according to Paragraph 6.1 to obtain the proper crimp height.
Figure 4. Crimp Height Gauge
Note: Crimp Height Gauge 904170-1 can be used as a quick verification of acceptable crimp height as shown in
Figure 4. Refer to Instruction Sheet 408-4389 for instructions on using the gauge.
Crimp heigh
t
gauge (ref)
Modular plug
(ref)

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Instruction Sheet
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6. Adjustments
Figure 5. Ratchet Adjustment
6.1 Ratchet Adjustment
The tool ratchet mechanism features an adjustment wheel with numbered settings, as shown in Figure 5. The
adjustment wheel controls the amount of handle pressure exerted on the jaws during crimping. If the crimp is not
acceptable, adjust the ratchet as follows:
1. Remove the lockscrew from the ratchet adjustment wheel.
2. With a screwdriver, adjust the ratchet wheel from the front of the tool.
3. Observe the ratchet adjustment wheel. If a tighter crimp is required, rotate the adjustment wheel
counterclockwise to a higher-numbered setting. If a looser crimp is required, rotate the adjustment wheel
clockwise to a lower-numbered setting.
4. Re-assemble the lockscrew.
5. Make a sample crimp. If the crimp is acceptable, the adjustment setting is correct. If the crimp is unacceptable,
continue to adjust the ratchet, and again measure a sample crimp.
Note: The tool is set at the No. 7 ratchet setting at the factory. This setting assures the proper crimp height for
solid wire and accounts for the maximum tolerance in the tooling. You can readjust your tool to a lower setting,
(No. 4, minimum), as long as you achieve the proper insertion depth, 6.02 ±0.13 [.237 ±.005).
See the applicable application specification.
6.2 Wire Stuffer Adjustment
If the wire stuffer is not assembled onto the insulation stuffer or if correct alignment of these two parts is unsure,
proceed with the following:
1. Install the wire stuffer onto the insulation stuffer using the 4-40 UNC .621 in. socket head cap screw included
with the die assembly. Refer to Figure 2.
Note: DO NOT tighten the screw. If the screw is tight, loosen it.
2. Close the tool handle until the ratchet releases, then allow the handles to open FULLY. Insert a modular plug
(without cable) into the crimping chamber.
3. Close the tool handle, and hold.
Screwdriver
Ratchet
adjustment wheel
Lockscre
w

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4. Insert a key into the socket head cap screw (retaining the wire stuffer), and tighten the screw.
5. Allow the handles to open, and remove the crimped modular plug. The wire stuffer will be held in its proper
position.
7. Maintenance and Inspection
7.1 Daily Maintenance
It is recommended that the tool operator be made aware of, and are responsible for, the following steps of daily
maintenance.
1. Remove dust, moisture, and any other contaminants from the tool with a clean, soft brush, or a clean, soft,
lint-free cloth. DO NOT use hard or abrasive objects that could damage the tool.
2. Make certain that the retaining pins are in place and that they are secured with retaining rings.
3. All pins, pivot points, and bearing surfaces should be protected with a thin coat of any good grade SAE 20
motor oil. DO NOT oil excessively. When the tool is not in use, keep the handles closed to prevent objects
from becoming lodged in the jaws.
4. Store the tool in a clean, dry area.
7.2 Periodic Inspection
Regular inspection of the tool should be performed by quality control personnel. A record of the scheduled
inspections should remain with the tool or be supplied to personnel responsible for the tool. Inspection
frequency should be based on amount of use, working conditions, operator training and skill, and established
company standards.
7.3 Visual Inspection
1. Remove all lubrication and accumulated film by immersing the tool (handles partially closed) in a suitable
commercial degreaser that will NOT affect paint or plastic material.
2. Make certain that the retaining pins are in place and that they are secured with retaining rings.
3. Close the tool handles until the ratchet releases, and then allow the handles to open freely. If they do not open
quickly and fully, the spring is defective and must be replaced.
4. Inspect the tool frame for wear or damage, paying particular attention to the tool jaws and the pivot points. If
damage is evident, replace it. If damage is not evident, lubricate the pivot point and return the tool to service.
5. Check the die assembly on a regular basis to ensure it has not become worn or damaged. Inspect the crimping
sections for flattened, chipped, worn, or broken areas. If damage is evident, replace the die assembly.