3M UniPresser 3M710 Bedienungsanleitung

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3M710 UniPresser

for 25-Pair Modular Splicing

Instructions

April 2001

78-8125-3042-2-B

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Table of Contents

Parts and Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Field Maintenance Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Straight Splicing Technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Half-Tap Splicing Technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Bridge Splicing Technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Bottomless Splicing Technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Uni-Presser Blade Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

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3M™3M710-UT25A Uni-Presser Parts and Nomenclature

(for Splicing 3M710 25 Pair Connectors)

1. Handle Retaining Clip (fig. 1 & 2)

2. Vertical Side Posts (fig. 1)

3. Blade Retaining Screws (fig. 2 & 3)

4. ”T” Bar Locking Knob (fig. 2 & 3)

5. Uni-Presser Support Rod (fig. 1)

6. Module Assembly Channel (fig. 1)

7. Module Guides (fig. 1)

8. ”L” Clip Module (fig. 1)

9. ”L” Clip Release Knob (fig. 1)

10. Color Code Guide (fig. 1)

11. Cutter Blade Holder Assembly (fig. 1)

12. Conductor Group Holder (fig. 1, 2 & 3)

13. Handle (fig. 1 & 3)

14. Carrying/Operational Handle (fig. 2 & 3)

15. Blade Guard

Component Parts

Figure 1

Figure 2 Figure 3

14 3313 14

Body

“T” Bar

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3M™3M710-UMK25A Field Maintenance Kit

1. Segmented Blade

2. Error Tester Tool

3. Bridge Module Support

4. Bottomless Splice Module Support

5. Hex Wrench

6. Cleaning Brush

7. Hex Screws and Washers

8. Lubricating Grease

9. Thumb Screws

10. Kit Carrying Case

Note: Half-Tap Cover, Conductor Wire Cutoff Tool and Bridge Splice Presser Tool are shown

in basic splicing techniques but are not included in kit.

3M™3M710-Unipresser Tool 25 A

Operational and Maintenance Instructions

Parts and Materials - 3M710 Modules used with the 3M710-UT25A

Cap

Bridge Module

Straight/Half Tap Module

Straight Only Module

Index Strip

Figure 4

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Straight Splice

Basic Technique for Straight Splicing 3M™3M710 25-Pair Modules

1. Set group holders (fig. 1 #12) 38mm (1 1/2”)

above the position of the cable units to be spliced. 2. To disengage the “T” bar from the locked

position, turn the locking knob until the flat sec-

tion releases the “T” bar. (fig. 2 & 3 #4)

3. The “T” bar is now clear of the module assem-

bly area allowing module construction. 4. Insert an index strip between the vertical side

posts. (fig. 1 #2) The index strip cathedral win-

dows and latch locks should face the

operator/front.

5. Push the “L” clip knob inward to allow the

index strip to seat along the module assembly chan-

nel and locate under the spring loaded “L” clips

(fig. 1 # 8 & 9)

6. Secure the 25-pair group through the conductor

group holder. (fig. 1 #12) and dress individual pairs

into the cathedral windows of the index strip. Each

pair is divided by a colored peak projection. To

assist correct assembly, a color code guide (fig. 1

#10) is located on the operator side of the tool.

Note: The conductors must lay through the index strip straight and must not be pulled tight.

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7. Check for wire color code dressing errors with

the error tester (fig. 4 #2). With tester to the left,

between the vertical posts all tip conductors are

visible. With the tester to the right, all ring con-

ductors are visible. Any errors can be detected and

corrected.

8. Spread the conductors evenly to each side of

the “T” bar without pulling or distributing the

conductors position in the index strip.

9. Position the “T” bar upright above the index

strip between the vertical side posts. (fig. 1 #2) 10. Apply downward pressure to the “T” bar until

contact with the index strip is made.

11.With the “T” bar in contact with the index strip,

push the “T” bar forward and downward, then pull

the handle all the way down until it hits the stop

position. This action firmly seats the conductors on

the index strip while the blade cuts the excess con-

ductors. Remove the surplus conductors with the

handle in the down position.

12. With the conductors seated and cut, return the

handle to the upright and engage it firmly within

the handle retaining clip. (fig. 2 #1) Position the

“T” bar clear of the module assembly area.

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13. Insert a module body between the vertical

side posts above the index strip. Push down on the

module body to lightly engage the index strip.

Ensure the cathedral windows and latches face the

operator/front.

14. Position the “T” bar upright above the module

body between the vertical side posts. Apply down-

ward pressure to the “T” bar until contact with the

module body is made. Pull the handle all the way

down until it hits the stop to seat and lock the

body into the index strip.

15. Secure the 25 pair group through the second

conductor group holder and dress individual pairs

into the cathedral windows of the module body.

Note: The conductors must lay through the mod-

ule body straight and must not be pulled tight.

16. Check for color code dressing errors with the

error tester. (fig. 4 #2) With the error tester to the

left, between the vertical posts all tip conductors

are visible. With the tester to the right all ring

conductors are visible. Any errors can be detected

and corrected.

17. Spread the conductors evenly to each side of

the “T” bar without pulling or disturbing the con-

ductors position in the module body. Position the

“T” bar in an upright position above the module

body between the vertical side posts. Apply for-

ward and downward pressure to the “T” bar until

contact with the body is made.

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18. With the “T” bar in contact with the module

body, pull the handle all the way down until it hits

the stop position. This action firmly seats the con-

ductors in the module body while the blade cuts

the excess conductors. Remove the surplus con-

ductors with the handle in the down position.

19. With the conductors seated and cut, return the

handle to the upright and engage it firm within the

handle retaining clip. (fig. 2 #1). Position the “T”

bar clear of the module assembly area.

20. Insert a cap between the vertical side posts

above the module body. (fig. 1 #2). Push down on

the cap to lightly engage the module body. Ensure

the cap latches face the operator/front.

21. Position the “T” bar upright above the cap

between the vertical side posts. Apply downward

pressure to the “T” bar until contact is made with

the cap. Pull the handle all the way down until it

hits the stop to seat and lock the cap onto the

module body.

22. Return the handle to the upright position and

engage it firmly within the handle retaining clip.

Return the “T” bar clear of the module assembly

area. Push the “L” clip to release the module. (fig.

1 #9) The 25 pair straight splice is now complete.

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Half-Tap Splicing

Basic Technique for Half-Tap Splicing 3M™3M710 25-Pair Modules

23. Prepare the sheath opening,

allowing additional slack to the

“through” cable pairs as follows:

Less than 900 pair cables =

127mm (5mm)

900 - 1800 pair = 127 - 178 mm

(5-7”)

1800 and above = 178 - 230mm

(7-9”)

24. Fit an index strip to the

Unipresser. Select a “trough”

group to be half-tapped and

dress the pairs into the index

strip. The cable side to be

removed must exit the index

strip towards the operator and

“T” bar. The conductors must

lay through the index strip

straight and must not be

pulled tight.

25. Check for wire dressing

errors with an error tester. (fig. 4

#2) DO NOT CUT AND SEAT

THE CONDUCTORS.

26. With the cathedral windows

facing the operator/front, posi-

tion a straight/half-tap module

body on top of the index strip

and engage the two with finger

pressure. Ensure the “trough”

cable pairs exit the module neat-

ly and do not restrict movement

of the “T” bar.

27. Operate the “T” bar handle to

seat and lock th body to the

index strip. At the same time, the

module contacts connect across

the “trough” cable conductors.

28. Dress the new cable pairs

into the module;e body and

repeat steps 16 through 22.

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29. To remove the module, push the “L” clip

(fig. 1 #9) in and lift clear of Uni-Presser. The

half tapped module is now complete.

30. Use a conductor wire cut off tool to remove

the old cable. Position the tool on the connector

to cut against the wire lay. A no break cable

transfer has been completed.

31. After the old conductors have been removed, fit

a half-tap cover. Remove the plastic protection from

the strip of sticky tape inside cover. This sticky tape

is positioned against the removed conductor ends as

the cover is snapped onto the module.

32. 3M710 25-pair connector module with half-tap

cover in position

Bridge Splicing

Basic Technique for Bridge Splicing 3M™3M710 25-Pair Modules

33. Position a 3M710 red bridge

module support (fig.4 #3)

between the vertical side posts

(fig. 1 #2) with the word FRONT

facing the operator/”T” bar. Push

the “L” clip button inward,

(fig. 1 #9 and release to secure

the support in position.

34. Position a bridge module into

the red bridge module support.

Hand seat the module firmly

with the peak colors matching

the color code check strip (fig.1

#10) and cathedral windows fac-

ing forward/front.

35. Dress the conductors into the

bridge module in color code

sequence. Repeat steps 16

through 22.

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