Gantry Replacement: CMC 8000 Series, 9000 and the Z(9000z)

• Head appearance may vary from model shown, but the connections are the same.

• Do not pick up Head using only the Blade Depth Knob or the Head Cover.

• Pick up the Head by holding the “D-Shaped” upper and lower Head Faceplates.

• Turn off the ECU.

• Turn off the air.

• Click the Reset Motors Button on the Cut Preview and click OK on the Release Motors prompt if it displays.

• Push the Blade Cartridge Release Lever down to eject the Blade Cartridge.

• Remove the Gantry Cover from the Gantry by unscrewing the screws that holds it in place and set aside.

• Move the Gantry to the right side of the Board until the Footblock is off the Board.

• Remove the two 5/32” screws on the Head Grabber Arm and set aside.

• If present, remove the Head Assembly Power Cable Strain Relief spanner from the Head Grabber Arm.

• Disconnect the Head Power Plug (square connection) from the Head Grabber Arm.

• NOTE: The connections on your CMC may be in a different arrangement than the one pictured, but they are connected/disconnected in the same manner.

• Disconnect the air to the Head by untwisting the two air fittings.

• Roll the Head down the Gantry until it rolls off of the Gantry, taking care not to drop it.

NEVER SKIP AHEAD ON ANY STEP!

• Disconnect the Air Lines to the Gantry by untwisting the Air Fittings.

• Disconnect the Board Cable by turning the locking ring until it comes away from the Gantry.

Look for Red Dots (only these screws are to be adjusted).

• Locate the 3/16” Allen Belt Tensioner Screw that’s located on the right bottom side of the lower Board Rail and marked with a red dot.

• Loosen the 3/16” Allen Belt Tensioner Screw one turn only so that there is some movement in the Belt Tensioner.

• The Belt Tensioner Springs should be visible.

Look for Red Dots (only these screws are to be adjusted).

• Remove the 5/32” Allen screws and washers from the lower Gantry Plate.

• Locate the Belt Tensioner Hole on the end of the Belt Tensioner.

• Place the 5/32” Allen screw and washer we removed from the lower Gantry Plate into the Belt Tensioner Hole.

• Tighten the Allen screw until the Belt Tensioner is flush with the Board Rail and the springs are not visible.

• Go back and tighten the 3/16” Allen Belt Tensioner Screw.

• Lift the Drive Belt end from of the Belt Tensioner Slot.

• Pushing the Drive Belt end to the right may assist in getting a hold of it.

• Wind up the Drive Belt, and rubberband it.

• Repeat these steps on the upper Board Rail.

• Move the Gantry to the left to dislodge the Belt Anchors.

• The Belt Anchors are sunk into the left ends of the Board Rails and are attached to the Drive Belts.

• Lay the Belt Anchors over the Drive Belts and rubber-band them together.

• Do not touch any of the screws on the left side of the Drive Belts; they are set at the factory.

• If you have a black Magnetic Stop Plate (located on the top left of the bottom Board Rail), loosen the top 3/16” Stop Screw.

• Lift up the Magnetic Stop Plate to disengage the pin from the hole and slide the Magnetic Stop Plate to the left end of the Board Rail to remove.

• If you have a silver Stop Plate (located on the top left of the bottom Board Rail), remove the right front 3/16” Stop Screw and set aside.

• Loosen the back left screw of T-Nut and slide the Stop Plate to the left end of the Board Rail to remove.

• If your model only has a Stop Screw without the alignment plate, remove the Stop Screw.

• Hold the Gantry on the bottom and along the Gantry Arm and gently roll the Gantry off the Board Rails on the left side of the Board and set aside.

• The Gantry only weights about 30lbs, but it is large and awkward; having a second person to assist may be beneficial.

• Before installation, look at the bottom set of Gantry Wheels.

• The bottom wheels are spring-loaded, the top wheels are on a center-pivot.

• Move the top set of wheels as needed for ease of installation (picture shows Gantry being put on Board Rail from the back).

• Before installation, look at the top set of Gantry Wheels.

• Both sets of Wheels are spring-loaded.

• The Wheels may need to be eased over the Board Rails (picture shows the Gantry being put on the Board Rail from back).

• Hold the Gantry near the left side of the Board and line up the upper then lower Gantry Wheels to the center channel of the Board Rails.

• NOTE: Installation is easier if you line up the upper Gantry Wheels first, then align the lower wheels onto the Board Rail. Having a second person for this step helps. Do not cut the tie wraps (zip-ties) on the Drive Belts until you have the Gantry placed onto the Board assembly so that you will not have to deal with two loose belts.

• Carefully ease the Gantry onto the left side of the Board Rails, taking care that all of the Gantry Wheels line up.

• The upper and lower Gantry Wheels ends must be slid on at the same time.

• Make sure that the Drive Belts lie within the channel on either side and are not pinched between the Gantry and the Board Rail.

• Roll the Gantry to the far right of the Board and back to the left to make sure it moves smoothly.

• If you have a black Magnetic Stop Plate, slide in the alignment plate from the left end of the Board Rail keeping the pin towards you.

• Place the pin into the appropriate hole listed below. Tighten the top 3/16” Stop Screw.

  • CMC 9000: Put the pin in the right hole.

  • CMC Z: Put the pin in the left hole

• If you have a silver Stop Plate, slide in the alignment plate from the left end of the Board Rail so that the Stop Screw is on the front right.

• Roll the Gantry so it lines up to the Gantry Stop Plate.

• Replace the 3/16” Stop Screw into the alignment plate.

• Loosely tighten the back left Stop Screw, then the front right Stop Screw, repeating until the Gantry Stop Plate is secured into position.

• If you only have the Stop Screw, replace the Stop Screw.

• Lightly pull the coiled Drive Belt to the right on the upper Board Rail to take up the slack and pull the Belt Anchor into place, flush with the end of the Board Rail.

• Remove the rubberband from the Drive Belt and loosely lay the Drive Belt along the Board Rail channel.

• Rotate the Toothed Pulley so that the red mark is on the top.

• Line up the red mark on the Drive Belt to the red mark of the Toothed Pulley; this may require moving the Gantry horizontally in either direction.

• Pull Drive Belt to the right to take up slack.

• Do the same with the lower Toothed Pulley and Drive Belt, aligning the red marks together.

• Do not move the Gantry after red marks line up.

• Pull the loose Drive Belt end to the right, making sure that the Drive Belt is not twisted and that the teeth are facing down toward the Board into the Board Rail channel.

• Move the Gantry to the right to reengage the Drive Belt Anchors.

• The Drive Belt Anchors are sunk into the left ends of the Board Rails and are attached to the Drive Belts.

• If you have a black Magnetic Stop Plate, slide in the alignment plate from the left end of the Board Rail keeping the pin towards you. Place the pin into the appropriate hole listed below. Tighten the top 3/16” Stop Screw.

  • CMC 9000: Put the pin in the right hole.

  • CMC Z: Put the pin in the left hole.

• Tighten the top 3/16” Stop Screw of the Magnetic Stop.

• If you have a silver Stop Plate, slide in the alignment plate from the left end of the Board Rail so that the Stop Screw is on the front right. Roll the Gantry so it lines up to the Gantry Stop Plate. Replace the 3/16” Stop Screw into the alignment plate.

• Loosely tighten the back left Stop Screw, then the front right Stop Screw, repeating until the Stop Plate is secured into position.

• If you only have the Stop Screw, replace the Stop Screw.

• Slide the screw of the Drive Belt end into the Belt Tensioner Slot.

• It should fit snugly.

• Go back and make sure that the red lines are still lined up.

• Remove the 5/32” Allen screws and washers from the Belt Tensioner.

• Leave the Gantry where it is.

• Loosen one full turn only the 3/16” Allen Belt Tensioner Screw from the right bottom side of the lower Board Rail marked with a red dot.

WARNING: Make sure you do not over loosen this screw. One full turn is usually sufficient.

• The Belt Tensioner should spring fully into place.

• Snugly tighten the 3/16” Allen Belt Tensioner Screw from the right bottom side of the lower Board Rail marked with a red dot.

• Repeat the steps for Installing the Drive Belt onto the Rail on the upper Board Rail.

• Place the two Allen screw and washer into the holes provided on the lower Gantry Plate.

• Place them so that the screw protrudes only slightly from the back of the plate.

*Carefully align the in-line pins of the Board Cable before applying pressure to plug it in. If forced in incorrectly, the CMC will malfunction.*

• The Board Cable connects the Gantry on the CMC to the ECU.

• Connect the male end of the Board Cable to the back of the ECU by aligning the pins and turning the locking ring until it seats itself and locks into place.

• Connect the female end of the Board Cable to the back of the Gantry in the same manner.

• Move the Gantry to the far right of the CMC and back to the left to make sure the Board Cable does not get caught on anything.

• If the Board Cable is obstructed, it will affect the cuts.

• Follow the Air Line with the red connector from the top of the Gantry and connect it to the right side of the Air Regulator by inserting the red connector on the end and twisting it into place.

*CAUTION: The Air Regulator is factory-set. Do not make adjustments to it.*

• Follow the Air Line with the blue connector from the top of the Gantry and connect it to the matching blue airline on the back of the Board.

• Make sure that none of the Air Lines are crimped.

• Move the Gantry to the right edge of the Board.

• Point the Head so that the Footblock faces toward the Board and the wheels are close to the bottom of the Gantry.

• Line up the Head Wheels to the center channels of the Gantry Arm and ease the Head onto the Gantry.

• Roll the Head up the Gantry until it lines up to the Head Grabber Arm on the right side of the Gantry.

• NOTE: The connections on your Board may be in a different arrangement than the one pictured but they are connected/disconnected in the same manner.

• NOTE: If you are having difficulty getting the Head Wheels onto the Gantry, see the Head Wheel Adjustment further down in this document.

• Connect the air to the Head by twisting the two air fittings together, matching colors.

• Connect the Head Power Plug (square connection) to the Head Grabber Arm.

• Locate the Head Assembly Power Cable Strain Relief spanner and the two 5/32” screws.

• Slide the tines of the Head Assembly Power Cable Strain Relief spanner around the base sides of the Head Power Plug connection.

• Holding the Head in position so that the Head lines up neatly to the Head Assembly Power Cable Strain Relief spanner on the Head Grabber Arm, screw in the two 5/32” screws, making sure they go into the Head Assembly Power Cable Strain Relief spanner and the Head Grabber Arm and then into the Head.

• Tighten firmly.

• Reinstall the Gantry Cover, replacing the screws removed earlier.

• Lift the Head up so that the Footblock does not strike the side of the Board and move the Gantry to the left.

• Turn on the air.

• Turn on the ECU.

• The Head is installed.

IMPORTANT: PROCEED TO HEAD WHEEL ADJUSTMENT INSTRUCTIONS BELOW.

WARNING: To avoid damage to the Head, do not loosen the Head Wheel screws without first aligning the Head to the middle of the Board.

• NOTE: If you are having difficulty getting the Head Wheels onto the Gantry during the Head installation, loosen the Head Wheel Adjustment Screws slightly, roll the Head onto the Gantry, then continue with the following instructions.

• Go to the Cut Preview screen.

• Manually move the Head and the Gantry to the middle of the Board, and click the Power Button.

• Align the Head in this position.

• Locate the Head Wheel Adjustment Allen screws on the left side of the Head under the Head Faceplate.

  • They are next to the Head Wheels and are marked with red dots.

• Do not touch the Allen screws on the Head Wheels themselves.

• Loosen each Head Wheel Adjustment Allen screw only until the wheels are loose; about two full turns.

• The Wheels are spring-loaded and will pop into place.

• Grasp the Head with both hands and gently rock it back and forth to ensure that the Gantry Wheels are lined up to the Gantry grooves.

• Tighten the Head Wheel Adjustment Allen screws consecutively; tighten the top screw half a turn, then the bottom screw half a turn, back to the top and continue until they are both tight.

• Check each of the Head Wheels to make sure there is no movement.

• There are the two visible Head Wheels on the left side of the Head under the Blade Depth Adjustment Plate, and two wheels on the backside of the Gantry, which can be felt by hand.

• They should sit firmly into the Gantry groove and be difficult to turn.

• If not, repeat the steps above for Head Wheel Adjustment.

• The Head Wheels have now been adjusted.

• Click on the Reset Motors Button, click OK on the Reset Motors screen if it displays.

• Return the Head to the home position.

• Install the Blade Cartridge if necessary.

• Call Technical Support if you have any questions at 425/551-4300 or 888/855-3335.

• Check both sets of wheels at the TOP of the Gantry.

• Make sure all of the Gantry Wheels make contact with the top Board Rail, and that they don’t spin freely.

• If any of the Gantry Wheels are not making contact, contact Technical Support.

• Do a test cut. Cut a 2x2 square, with 2” Borders, NOT cutting the outside.

• Measure the left and bottom Borders from the back side of the mat to the opening and make sure it measures 2”.

• If it does not, Reset the Motors, Align the Head and cut/measure again.

• If the Borders are still off, adjust the Horizontal Home position in the Configurations Screen accordingly.

  • If the border is too big, decrease the Horizontal Home.

  • If the border is too small, increase the Horizontal Home.

• Do another test cut. Continue making adjustment until it measures 2”.

• If you need assistance, call Technical Support.

• Make sure that the Gantry is straight.

• Cut a rectangle that is about 2x24”, NOT cutting the outside, with 2” Borders.

• Measure the Borders to the opening at the bottom of the mat closest to the vertical clamps, then measure the Borders to the opening at the top of the mat closest to the vertical clamps.

• If the Borders are not measuring 2” in both places, call Technical Support for assistance.