ACU-RITE SENC 150 User manual

Installation Manual 385033-000
P.N. 385033-121 Ed C 2/06 1Acu-Rite Companies Inc.
SENC 150 Encoder Installation Manual For: Bridgeport Series I
Vertical Knee Mill and other similar mills
Longitudinal X Axis front table mount
Mounting Information...
These are application instructions for mounting the
longitudinal “X” axis SENC 150 encoder.
Before proceeding:
³Please read the instructions completely.
³Insure that the correct length encoder is being used
for the total axis travel.
³Keep the reading head centered during installation.
³Clean the mounting surfaces.
³Save the alignment brackets with the Encoder
Reference Manual after installation is completed.
First Steps ...
Machine
Move the table to its center of travel.
Mark the axis so that it can be re-centered easily.
Encoder
Unpack encoder in a safe, convenient location.
Do not remove the reading head alignment
brackets until instructed.
Center reading head ...
•Slide the reading head and brackets along the scale
case until the center marks on the scale case and
reading head are aligned.
Alignment bracket (2)
Align
center
marks
3/8-16 x SHCS (existing)
SENC 150 Encoder
Reading head bracket
*M6 Flat washer (2)
.017” thick
**Center support
*8-32 x 5/8” SHCS (2)
1/4-20 x 1-1/8” BHCS (2)
T-Nut (2)
**8-32 x 3/4” SHCS
Longitudinal Installation ...
*Supplied with encoder hardware
**Supplied with center support hardware

Installation Manual 385033-000
P.N. 385033-121 Ed C 2/06 2Acu-Rite Companies Inc.
Encoder orientation ...
•These instructions will guide you through installing
the encoder as shown in this view.
Cable exit ...
SENC 150 Encoder Installation Manual For: Bridgeport Series I
Vertical Knee Mill / Longitudinal X Axis front table mount
T-10 Torx screw (2)
Plug
Cover plate
Vinyl cable grommet
Armor cable hex crimp
•Determine the cable exit direction before installing
the encoder.
•To change the cable exit direction; remove the cover
plate and rotate the cable 180°.
Encoder Installation ...
Center support
Encoder Assembly
Reading head, sides 1
& 2 face outward
Reading head
bracket
Table
Saddle
•Remove the table stop from the front of the saddle.
•Attach the reading head bracket using the same
fasteners.
Use the existing 3/8-16 SHCS
used to fasten the stop
Reading head bracket
•Replace exiting T-Nuts from the front of the table
with the T-Nuts supplied in the bracket kit.
•Fasten the encoder to the table, but do not tighten
fully.
•With the table at its center of travel, position the
encoder so that the bracket mounting holes and the
reading head mounting holes are in the same
proximity.
*M6 Flat washer
(2) .017” thick
1/4-20 x 1-1/8” BHCS (2)
T-Nut (2)
•Align the top of the encoder to within .010” TIR.
•Secure encoder in place maintaining alignment.
Center support installation ...
Align the top of the encoder
with the table top surface or
axis travel to within .010”
**Center support
Saddle
Table
• Insert the center support to the top of the scale case
above the center location tag.
• Ensure that the center support interlocks with the
scale case.

Acu-Rite Companies Inc.
One PrecisionWay • Jamestown, NY 14701
Installation Manual 385033-000 3P.N. 385033-121 Ed C 2/06
SENC 150 Encoder Installation Manual For: Bridgeport Series I
Vertical Knee Mill / Longitudinal X Axis front table mount
•Use allen wrench from set screw adjustment to
slide alignment brackets away from the reading
head.
•Remove alignment brackets and save.
•Move the axis through its full travel. Confirm that
the assembly does not interfere with the machine
movement.
Slide brackets back
away from the
reading head and
cable Twist brackets
45° to remove
Encoder button up ...
•Align the center of the scale case to within .010” to
the ends, and transfer punch the support hole
location.
•Remove the center support, drill and tap the hole
location for an 8-32 x 1/2” deep.
•Attach the center support to the scale case and
table. Align the center of the scale case with each
end to within .010” and secure in place.
Reading head installation ...
8-32 x 3/4” SHCS
Center support
A gap will exist between
bracket and reading head.
*Leveling set screw (3)
*8-32 x 5/8” SHCS (2)
•Insert the two *8-32 x 5/8” SHCS. Insure the
bracket is adjusted to provide proper screw head
clearance. Do not tighten screws at this time.
•Set each leveling set screw by placing a .001” - .003”
feeler gage between the set screw and the bracket.
•Adjust each set screw until a slight drag is felt on
the feeler gage.
• Evenly tighten the two 8-32 SHCS.
Proceed with the Cross
Feed installation

Installation Manual 385072-41
P.N. 385072-214 Ed C 11/05 1Acu-Rite Companies Inc.
Cross Feed Installation ...
*Supplied with encoder hardware
ENC 150 Encoder
*M6 flat washer (2)
.017” thick
* 8-32 x 3/4” SHCS (2)
Low head screw
* 1/4-20 x 1” BHCS (2)
Spar
Spacer (2)
1/4-20 x 1-1/4” BHCS (2)
1/4” Flat washer
.09” thk. (2)
Reading head mtg.
brkt.
Encoder Installation Manual for: Bridgeport
Series I - Vertical Knee Mill
Cross Feed Y Axis - Right hand side
SENC 150
Mounting Information...
Theseinstructionsarefor mounting the 13” encoder to
theSeries 1 knee mill. Bridgeport machines have the
encodermountingholesprovidedsince1985. These
instructionsassumetheseholesarepresent.
Before proceeding:
³PleasereadtheProcedurecompletely.
³MountX axis prior to installing the crossfeed.
³Cleanthemountingsurfaces.
³SavethealignmentbracketswiththeEncoder
ReferenceManualafterinstallationis completed.
First Steps ...
Machine
Movethetabletoitscenteroftravel.
Marktheaxissothatit canbere-centered easily.
Movethesaddlecompletelyforwardontheknee.
Encoder
Unpackencoderinasafe,convenientlocation.
Donotremovethereadingheadalignment
bracketsuntilinstructed.
Center reading head ...
•Slidethereadingheadandbracketsalongthescale
case until the center marks on the scale case and
readingheadarealigned.
Alignment bracket (2)
Align
center
marks

Installation Manual 385072-41
P.N. 385072-214 Ed C 11/05 2Acu-Rite Companies Inc.
•Withthe saddle at its center oftravel,attach the
brackettothesaddle.
* 1/4-20 x 1” BHCS
& .09” Flat washer (2)
Encoder orientation ...
•Determinethecableexitdirectionbeforeinstalling
theencoder.
•Tochangethe cable exit direction; remove the cover
plateandrotatethecable180°.
Encoder / Spar installation ...
•Theseinstructionswillguideyouthroughinstalling
theencoder as shown in this view.
Cable exit ...
Spacer
Reading head
Knee
Reading head
bracket
Saddle Spar
Encoder Assembly
Encoder Installation Manual For: Bpt. Vert. Knee Milll
Cross Feed Y Axis - Right hand side
SENC 150
T-10 Torx screw (2)
Plug
Cover plate
Vinyl cable grommet
Armor cable hex crimp
•Attachthe spar to the kneewiththestandoffs. Much
olderBridgeportmachinesweretappedfor a 3/16-18.
Twothreadedinsertsareprovidedfor these older
mills. Somemachines have the spot faced surfaces
epoxiedoverandwillneedtobecleanedout
completely.
Spar
Standoff (2)
1/4-20 1-1/4” BHCS (2)
*M6 Flat washer (2)
•Alignthe spar top and front surfacetotheaxis
travel.
Align to within
.010” TIR of the axis travel or
top surface of ways
1/4-20 x 5/8”
FHCS
M4 Set screws
Encoder
Flush side (1 & 2)
•Insertand center the encoder in the sparfromendto
endasdonepreviously.
•Tightenset screws to secure in place.

Installation Manual 385072-41
P.N. 385072-214 Ed C 11/05 3Acu-Rite Companies Inc.
Alignment bracket removal ...
•Useallen wrench from set screw adjustment to slide
alignmentbracketsawayfromthereading head.
•Removealignmentbracketsandsaveforpossible
futureuse.
•Move the axis through its full travel. Confirm that
theassemblydoesnotinterferewiththemachine
movement.
Slide brackets back
away from the
reading head and
cable Twist brackets
45° to remove
Leveling set screws (3)
*8-32 x 3/4” SHCS (2)
•Adjustthebracket so that the reading head
mountingholesalignwith the reading head casting.
Securethe bracket in place.
Reading head
mounting holes (2)
A gap will exist between
bracket and reading head.
•Insert the two *8-32 x 5/8” SHCS. Insure the bracket
isadjustedtoprovideproperscrewheadclearance.
Do Not Tighten Screws at this time.
•Set each leveling set screw by placing a .001” - .003”
feelergagebetweenthesetscrewandthebracket.
•Adjust each set screw until a slight drag is felt on the
feelergage.
• Evenly tighten the two 8-32 SHCS.
•Withthelongitudinalaxisinstallationcomplete,
routethecablesprovidingsufficientslackloopsfor
machinemovementtothereadout.
•Securecables by fastening with clips or ties.
•Attachthelinearencoderconnectorstothereadout.
•Completetheinstallationbyfollowingthestepsin
“CheckingYourInstallation”sectionintheencoder
“ReferenceManual”.
Encoder Installation Manual For: Bpt. Vert. Knee Milll
Cross Feed Y Axis - Right hand side
SENC 150
Reading head installation...