3M UniPresser 3M710 User manual

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3M710 UniPresser
for 25-Pair Modular Splicing
Instructions
April 2001
78-8125-3042-2-B

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278-8125-3042-2-B
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
22
12
12
14 3313 14
3
12
4
15
12
4
1
10
9
13
1
5
11
Body
“T” Bar
77
86
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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
5
3
4
19
7
6
8
2
10
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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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