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Repair and Repl acement Procedures 7-16 ProMa ster 25 00 U ser Ma nual Mechanical Assembly Removal Replacing the Input Orbital Tube Clamp If the tube clamp on the input orbital tube clamp ass embly is too loose, does not…

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Repair and Replacement Procedures
ProMaster 2500 User Manual 7-15
Replacing the Beam
Head Rotation Motor
Follow the steps below to replace the beam head rotation motor.
1. Turn off the 2500, remove the power cord, and disconnect the motor
cable.
2. Remove the two 3/32-inch set screws in the shaft pulley of the
rotation motor.
3. Remove the single 3/32-inch hex mounting screw in the beam head
pulley.
4. Loosen the four motor mounting screws using a 1/16-inch hex
wrench.
5. Pull up the beam head pulley and remove the beam rotation belt.
6. Remove the motor drive pulley.
7. Use a 1/16-inch hex wrench to remove the four motor mounting
screws and remove the beam head rotation motor.
8. Install the new motor, but do not tighten the four hex mounting
screws.
9. Install the motor shaft pulley, beam head pulley, and beam rotation
belt.
10. Adjust the belt tension by moving the motor closer or farther from
the beam head.
11. When you have sufficient belt tension, tighten the four hex mounting
screws.
Replacing the Beam
Traverse Motor
Follow the steps below to replace the beam traverse motor.
1. Turn off the 2500 and remove the power cord.
2. Lift the main plate of the 2500 and disconnect the ribbon cable
connector from J-7 on the controller board.
3. Disconnect the traverse motor power cable from J-11.
4. Look through the two holes in the top of the beam traverse motor’s
mounting block (see Figure 7-16) while you manually rotate the lead
screw until the heads of the flex coupler set screws are visible
through the holes.
5. Use a 7/64-inch hex wrench to loosen the set screw on the right side
of the flex coupler.
Note: This set screw connects the flex coupler to the beam traverse motor shaft.
6. Use a 5/32-inch hex wrench to remove the four beam traverse motor
mounting screws and remove the beam traverse motor.
7. Install the new motor and re-assemble all of the disconnected
components.
Repair and Replacement Procedures
7-16 ProMaster 2500 User Manual
Mechanical Assembly Removal
Replacing the Input
Orbital Tube Clamp
If the tube clamp on the input orbital tube clamp assembly is too loose,
does not close, or produces too much tension, follow the steps below to
replace it.
1. Turn off the 2500 and remove the power cord.
2. Remove the PE assembly, as described on page 7-3.
3. Lift the main plate and locate the round input orbital motor collar on
the cam spindle. Loosen the set screw and remove the motor collar.
4. Remove the two 3/32-inch hex screws that hold the rear orbital
alignment block to the underside of the main plate. Slide the rear
orbital retaining block off the dowel pin and let the block dangle from
the cables.
5. From above the main plate, remove the two 3/32-inch hex screws
that hold the front orbital alignment block to the main plate. Remove
the front orbital retaining block from the underside of the main plate.
6. Support the left side of the orbital assembly while you remove the
7/64-inch hex retaining screw on the right side of the orbital
assembly.
7. Remove the 3/32-inch hex screw that holds the grounding strap to
the underside of the main plate.
8. Use a needle-nose pliers to remove the track springs.
9. Remove the four 3/32-inch hex screws on the underside of the input
orbital plate.
10. Cut the tie wraps and disconnect the two optic cable connectors and
the single microswitch cable connector.
Figure 7-13
Remove the Track Springs
2308-1
INPUT ORBITAL
ASSEMBLY
SPRING (1 of 2)
CENTER POST
Repair and Replacement Procedures
ProMaster 2500 User Manual 7-17
11. Carefully pull the input orbital assembly off the motor spindle and
then slide the assembly to the left, until the right side of the assembly
is free.
12. Install the repaired input orbital assembly and re-assemble all of the
disconnected cables and components.
Replacing the
Output Orbital Tube
Clamp
If an orbital tube clamp on the output orbital tube clamp assembly needs
to be repaired, follow the steps below to remove and reinstall it.
1. Turn off the 2500 and remove the power cord.
2. Remove the PE assembly, as described on page 7-3.
3. Lift the main plate and locate the round input orbital motor clamp.
Loosen the set screw and remove the motor clamp.
4. Remove the two 3/32-inch hex screws that hold the right orbital
alignment block to the underside of the main plate. Slide the right
orbital retaining block off the dowel pin and let the block dangle from
the cables.
5. Remove the two 3/32-inch hex screws that hold the left orbital
alignment block to the underside of the main plate. Remove the left
orbital alignment block.
6. Remove the 3/32-inch hex screw that holds the grounding strap to
the underside of the main plate.
7. Use a needle nose pliers to remove the track springs.
8. Remove the four 3/32-inch hex screws on the underside of the output
orbital plate.
9. Cut the tie wraps and disconnect the four optic cable connectors and
the single microswitch cable connector.
10. Carefully pull the output orbital assembly off the motor spindle.
11. Install the repaired output orbital assembly and re-assemble all of the
disconnected cables and components.
Figure 7-14
Remove the Track Springs
2309-1
OUTPUT ORBITAL
ASSEMBLY
SPRING (1 of 4)
CENTER POST (1 of 2)