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©2010 Tyco Electronics Corporation, Berwyn, PA

All Rights Reserved

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Instruction Sheet

TOOLING ASSISTANCE CENTER 1-800-722-1111

PRODUCT INFORMATION 1-800-522-6752

This controlled document is subject to change.

For latest revision and Regional Customer Service, 

visit our website at 

www.tycoelectronics.com

1

 of 3

LOC B

Hydraulic Hand Crimping
Tool 1490748-1

408-8716

 06 OCT 10 Rev A

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.

Figure 1

1. INTRODUCTION

Hydraulic Hand Crimping Tool 1490748-1 (Figure 1) is 

designed for crimping the terminals and splices in 

Figure 2. Read these instructions thoroughly before 

using the hand tool.

Figure 2

Dimensions in this instruction sheet are in metric 

units [with U.S. customary units in brackets]. 

Figures and illustrations are for identification only 

and are not drawn to scale.

2. DESCRIPTION

See Figure 1.

The hand tool has a stationary lever and a movable 

lever. These levers are compressed to pump hydraulic 

fluid behind the ram, moving it forward and thereby 

closing the dies. After the crimping is complete, the 

movable lever is turned to depress the plunger. The 

moving die retracts to its original position, completing 

the crimping cycle.

3. DIE INSERTION AND REMOVAL

To avoid damage to the tooling, never operate the 

tool with the dies removed. Failure to insert the dies 

before operation can result in damage to the "C"-

head or the tool ram.

1. Advance ram slightly to gain access to moving 

die release button.

2. Before inserting dies, refer to instruction sheet 

packaged with dies for detailed instructions: 

insert or remove dies, as necessary, by following 

procedures given in the instruction sheet for the 

dies.

4. CRIMPING PROCEDURE

1. Strip wires to dimensions specified on the 

instructions packaged with dies (see Figure 2).

TERMINALS

WIRE SIZE

(AWG)

INSTRUCTION 

SHEET

AMPOWER*

Terminals and Splice

6 Through 3/0

408-8703

SOLISTRAND*

Terminals And Splices

8 Through 4/0

408-8691

TERMINYL*

Terminals and splices

8 Through 4

408-8704

NOTE

i

CAUTION

!

“C” Head

Moving Die

Release Button

Striker (Sown in Actuated 

Position to Depress Plunger)

Movable

Lever

Stationary Die

Release Button

Ram(Shown Advanced)

Plunger

Stationary

Lever

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