Congratulations for getting your new BT30 spindle for your 1100 or 770. Let's take
a look in this video on how to install it so we can get you back to making chips. This video will
cover the upgrade for both the 770M and the 1100M Mills, but will mainly show the 1100 M on screen.
Anytime there's a difference it will be noted with an on-screen graphic. Please read all the
installation guides included with your upgrade and conversion packages for all the tool requirements,
warnings and cautions, and any changes to the procedure. Before we get started with the actual
install, we do need to take care of one thing, updating PathPilot. If you are on 2.4 or less,
you have to click on the link above to update, otherwise it's always a good habit to make sure
that you're on the current version. Prepare the machine. Remove any tooling fixtures or
work pieces from the machine, then jog the spindle nose until it's approximately six inches above the
table. Power off the machine and the PathPilot controller. Push in the emergency stop button on
the operator box from the PathPilot interface, select exit, turn the main disconnect switch to
off, disconnect any pneumatic air lines on the machine, and verify that the lines are empty.
Open the spindle cover and lock it in the up position, then disconnect the spindle motor
Quick Connect fitting. Remove the power drawbar. Confirm that the airline with a red strip is
labeled top and the air line with the white strip is labeled bottom. If the airlines aren't labeled,
label them. Disconnect the quarter-inch air lines from the top and bottom push to connect
fittings on the power drawbar cylinder. Pull out the quick-release pin, then use a five millimeter
hex wrench to remove the shoulder screw from the base plate. Remove the power drawbar cylinder.
Disassemble the original drawbar. While using one hand to hold the spindle lock arm,
use the other to remove the spindle lock arm pivot screw with a five millimeter hex wrench. Carefully
remove the spindle lock arm. Remove the spindle lock base with a five millimeter hex wrench from
the spindle door remove the spindle lock armed with a four millimeter hex wrench remove the
r8 spindle with a thirteen millimeter and a 19 millimeter open-ended wrench loosen the existing
drawbar assembly allowing the r8 collet drawbar and spring washers to be removed from the spindle
release the tension from the spindle belt and then remove it from the machine using a three
millimeter hex wrench loosen all three set screws on the pulley retention nut remove the pulley
retention nut from the machine with a provided spanner wrench you will now have access to the
power drawbar flange pulley and pulley spacer which are key to the spindle shaft turn on the
machine and the path pilot controller turn the main disconnect switch to on twist the emergency
stop button on the operator box press the reset button on the operator box then bring the machine
out of reset and reference it remove only five of the socket head cap screws that secure the
spindle flange to the head casting with a six millimeter hex wrench and set them aside then
loosen the remaining socketed cap screw but do not remove it removing it could cause the spindle to
fall out of the head casting Center the machine by typing in the MDI line the appropriate command to
Center your machine and press ENTER place a wooden block on the machine table and slowly lower the
spindle nose on top of the block keeping it clear of the coolant nozzles remove the remaining socket
head cap screw with a six millimeter hex wrench and set it aside with the others slowly jog the
z-axis up just enough for the spindle is slide out giving you enough clearance to remove the
spindle pulley keep a good grip on the RS spindle as you continue to jog the z-axis up until it can
be completely removed from the spindle install the bg-30 encoder slowly jog the z-axis down until the
spindle motor housing is in a convenient location to remove the motor and work in it power off the
machine and the path pilot controller pushing the emergency step button on the operator box select
exit then turn the main disconnect which to off remove the spindle motors pivot plate clamping
handle and the m10 socket head cap screw from the pivot bushing on the 770 removed the bolt
on the right hand side then using a pry bar lift the left hand side as you loosen the shoulder
screw remove the spindle motor and its pivot plate assembly from the spindle head and set them aside
clean the inside of the spindle motor housing with a mild degreaser then install the encoder read
head on the head casting using a three millimeter hex wrench leave the encoder just loose enough to
make the final adjustments later in this procedure route the wires up behind the spindle door switch
and position the slack along the floor of the casting to help route the wire bundle through
the energy chain tape up the loose ends of the wire you can use a flat bladed screwdriver to pop
out each of the retainers on the energy chain then route the wire bottle through the energy
chain and out the back identify smooth surfaces on which to adhere the cable tie holders use
sandpaper to scuff the surface which will help with adhesion and then secure the encoder wire
with a zip tie identifying the knockout holes on the top of the electrical cabinet remove one
and put one of the core grips in its place take the encoder wire and route it through the cord
grip and into the electrical cabinet locate the encoder wire and connect each individual wire
to the supplied terminal block as detailed in this table inside the electrical cabinet remove
the top wire trough and set it aside on the ECM version 1.5 board identifies a j9 connector and if
needed cut away any wire trough tabs to make room for the connector connect the terminal block with
the encoder wires to the j9 connector organize the wires into the wire trough then reinstall the wire
trough cover replace the spindle motor pulley spacer first remove the motor pulley by using a
six millimeter wrench to remove the m8 socket head cap screw and washer securing the motor pulley to
the motor shaft it may be helpful to use the old belt to gain grip on the spindle motor pulley
remove the spindle motor pulley from the motor shaft with a gear puller if you find it difficult
to remove the spindle motor pulley either get some assistance or carefully use thin pry bars
remove the shaft key and set it aside remove the motor pulley spacer from the motor Shack you can
discard the original motor pulley spacer slide the new motor pulley spacer onto the motor shaft
replace the shaft key that you removed earlier then reinstall the original pulley onto the shaft
you may need to use a rubber mallet to gently tap both of them into place secure the motor pulley
with the socket head cap screw and the washer that you've removed earlier install the motor and
its pivot plate back onto the machine install the bg-30 spindle and align the encoder turn the main
disconnect switch to on twist out the emergency stop button press the reset button on the operator
box bring the machine out of reset and reference it find the new BT 30 spindle disassemble the BT
30 spindle from the top of the drawbar remove the jam nut with a 19 millimeter open-ended wrench
and remove the disk spring compression nut with a 25 millimeter open-ended wrench some drawbar
assemblies also include a number of shim washers beneath the disc spring compression nut if your
spindle includes these save them and reinstall them at the same location later remove the 16
disc springs and set them aside loosen the two set screws on the disc spring guide with a two
millimeter hex wrench then use a flat bladed screwdriver to separate the disc spring guide
off the spindle shaft set it aside loosen the three set screws that secure the retention nut
with a three millimeter hex wrench remove the retention nut with the provided spanner wrench
you can use the old belt to hold the spindle in place as you loosen the retention nut set
the retention nut aside remove the power drawbar flange the pulley and the encoder ring set all the
parts aside raise the head casting to provide enough clearance to insert the new spindle to
spin the hole on the 1100 M faces the rear of the machine while the 770 M has a flat which needs to
face forward when installing it rest the spindle securely on the two blocks of wood apply a thin
coat of oil to the outside of the spindle then slowly jog the z-axis down until the head casting
is flushed with a spindle flange make sure they slide and easy and does not twist as the z-axis is
lowering find the six socket head cap screws that you set aside earlier secure the spindle flange to
the head casting with one of the socket head cap screws slowly jog the z-axis up until you could
remove the two blocks of wood from the machine table install the remaining five socket head cap
screws into the spindle flange working in a star pattern tighten all six socket head cap screws to
20 foot pounds install the encoder ring with the magnetic ring pointing up remove any stickers from
the encoder ring position the encoder read head tangent to the encoder ring setting its distance
with a thin piece of paper or a shim tighten the two flange crews to secure the encoder read head
in place and remove the shim rotate the spindle by hand to confirm there's no risk of collision
or entanglement with the encoder wire install the pulley and power drawbar flange over top
of the spindle reinstall the retention nut grip the pulley with the old belt and use the provided
spanner wrench to tighten the retention nut and secure it by tightening all three of its set
screws using a three millimeter hex wrench install the disk spring guide tightening the set screws
with a two millimeter hex wrench install all eight sets of disk springs onto the disk spring
guide as shown here make sure that all the shims are replaced tighten the disk spring compression
nut until it's snug to hold the disk spring guide in wall tightening insert the provided dowel into
the large hole secure it with the jamb nut and make further adjustments after completing the
power drawbar upgrade install the new 250 we built in the high bail position and then apply
tension with the belt tensioner manually turn the spindle to ensure that the encoder cables will
not become entangled reconnect the motor quick connect fitting install the VFD you must power
off the machine before making any electrical connections if you don't there's a risk of
electrocution or shock power off the machine and the path pilot controller pushin the e stop button
on the operator box click exit unpalatable ectric Abin --it remove the lower wire trough cover and
set it aside remove the access panel from the VFD using a flat bladed screwdriver and set
it aside remove all the wires connected to the VFD with a flat bladed screwdriver philips head
screwdriver or Torx driver as necessary loosen the four mounting screws that secure the VFD
with a Philips head screwdriver and remove the VFD from the electrical cabinet to receive your
refund or Core charge payment you must return the VFD back to tormach the upgrade kit will contain
a flyer with more information on the VFD return process find the new VFD provided in this kit and
install it in the electrical cabinet with the four mounting screws that you set aside earlier install
the wires that you removed from the old via theme into the new VFD use the following images
to verify all of the connections after double checking and confirming the wire connections
replace the access panel on the VFD organize the wires into the wire trough and then replace
its cover that you set aside earlier verify the installation power on the machine take it out of
reset and reference it in path pilots MDI line on the main tab type admin config then select enter
in the dialog box select ok the tormach machine configuration screen will appear select 1,100 MX
or 770 MX depending on your machine model then select save and start after path pilot loads
bring the machine out of reset and reference it in the MDI line type admin encoder test then select
enter follow the on-screen instructions to verify your upgrade upgrade your power drawbar remove
the 3m 14 flat head cap screws that secure the power drawbar cylinders assembly mounting plate
with a 10 millimeter hex wrench set the mounting plate and it's Hardware aside remove the three
105 millimeter power drawbar standoffs from the pneumatic cylinder with a 17 millimeter open-ended
wrench to scar the standoffs remove the hex head screw from the power drawbar cylinder rod with a
24 millimeter wrench you may need to use an impact driver remove and discard the m16 washer install
the jam nut onto the hex head screw and then install that into the powered drawbar cylinder rod
install the three provided 152 millimeter power drawbar standoffs with a 17 millimeter open-ended
wrench reinstall the mounting plate and its Hardware onto the power drawbar cylinder assembly
install the power drawbar cylinder assembly onto the mill spindle head with the quick release pin
and the compression spring shoulder screw removed from the original power drawbar connect the Air
Lines to the power drawbar cylinder adjust the hex head screw with a 24 millimeter hex wrench
so that it's about 20 to 40 thousandths away from the bg-30 drawbar then secure the jam nut with a
twenty millimeter hex wrench congratulations on installing a new bt 30 spindle if you ran
into any issues please make sure to reach out to tech support or take a look at the tormach
tech support youtube channel for videos like how to adjust your BT 30 powered drawbar if you like
what we're doing here please make sure to like the video and subscribe to our Channel thanks