Realice este procedimiento para un DM-1 o un DT-1. Este procedimiento le indica cómo reemplazar el husillo. Las máquinas construidas después de enero de 2014 utilizan un husillo de aceitado de punto medio (MPO). Utilizará un husillo MPO cuando reemplace el husillo.

Clean the spindle head bore.

Stone the mating surface [1] on the spindle head casting.

Clean the motor adapter where it touches the spindle [3].

Do not stone the spindle lubrication port [2]. Keep all contamination out of the port.

Replace the spider coupling [1] if it is worn or damaged.

Replace the transfer tube [2] if it is worn or damaged.

Attach the red protective cap [2] to the bottom of the MPO spindle.

Put a 6" x 6" x 6" (152 mm x 152 mm x 152 mm) wood or aluminum block [3] on the table.

Put the MPO spindle on the block.

Make sure that the spindle lubrication port [1] is in the front.

Put a long 5/16"-18 screw [4] through the rear hole on the motor adapter. This screw helps you align the motor adapter to the spindle.

Put an indicator against the spindle coupler [1]. Zero the indicator.

Slowly turn the spindle with your hand to find the highest point on the coupler.

Put a mark on the point with a permanent marker.

Examine the coupler on the motor [2].

If the motor coupler has a mark, proceed to step 3.

If the motor coupler does not have a mark:

• Put an indicator against the motor coupler [2]. Zero the indicator.
• Slowly turn the motor by hand to find the highest point.
• Use a permanent marker to mark the point.

Apply grease to the transfer tube at these locations:

• the o-ring [1] at the top
• the socket [2] for the o-ring on the draw bar.

Push the transfer tube [4] onto the top of the draw bar [5].

Install the spider coupler [3].

Remove the tape [1] from the spindle lubrication port.

Apply a small quantity of grease to the spindle seal o-ring [2].

Insert the o-ring into the lubrication port [3].

Put the tape over the lubrication port of the spindle that was removed.

Slowly jog the Z Axis in the negative (-) direction until the head mount [1] is 0.5" (13 mm) above the spindle flange [2].

Use your hand to slowly turn the spindle coupler [5] until the mark on the spindle coupler aligns with the mark [4] on the motor coupler [3]. Align the (2) marks as closely as possible.

Slowly jog the Z Axis in the negative (-) direction.

 Caution: Lower the lift as you jog the Z Axis. The motor must be supported by the lift until the spindle is connected to the motor adapter.

Make sure the spindle is centered in the spindle bore.

Make sure the couplers engage smoothly.

Remove the temporary screw you used in step 1.

Install (4) motor mount screws [1] into the motor mount adapter [2].

Torque the screws. Refer to Haas Fastener Torque Specifications.

Remove the motor support lift.

Attach the oil supply fitting.

Connect the oil supply tube.

Put (4) screws [1] into the upper inside bearing block of the rocker assembly.

Put (4) screws [9] into the outer bearing block.

Put the rocker assembly [3] onto the spindle casting. Use the lower bearing block [2] on the inside as a guide.

Use a dowel pin [8] to align the outside bearing block.

Put the rocker arm [7] through the yoke [5] on shaft from the air cylinder.

Push the clevis pin [4] through the arm and the yoke.

Put the C-clip [6] onto the clevis pin.

Torque all of the screws. Refer to the Haas Fastener Torque Specifications.

Make sure the rocker assembly is correctly adjusted.

 Note: The illustration does not show the spindle and spindle motor.

Use the spring installation tool to attach the spring to the striker block.

Refer to DT-1 - Spindle Rocker Arm - Spring Installation Tool - Instructions.

Install the fan assembly onto the top of the spindle head.

Install the spindle head covers.

Avance el eje Z hasta la parte inferior del recorrido.

Pulse [EMERGENCY STOP].

Retire el conjunto de ventilador del husillo.

Retire el conjunto de brazo oscilante. Siga estos pasos:

• Retire la pinza C [5] del pasador de la horquilla [6]. Empuje el pasador de la horquilla para extraerlo.
• Desconecte el resorte [4] del bloque de ariete.
• Afloje los (4) tornillos [1] del bloque de rodamientos interior [2].
• Afloje los (4) tornillos [7] del bloque de rodamientos exterior [8].
• Retire el conjunto del brazo oscilante balancín de la máquina.
• No retire la mitad inferior [3] del bloque de rodamientos interior.
• Retire los pernos de los bloques de rodamientos.

Nota: la ilustración no muestra el husillo y el motor del husillo.

Gire los ejes X e Y hasta que la mesa esté directamente debajo del husillo.

Presione [EMERGENCY STOP].

Coloque un bloque de madera o aluminio de 6" x 6" x 6" (152 mm x 152 mm x 152 mm) [2] sobre la mesa.

Coloque la cubierta protectora [1] sobre el husillo instalado en la máquina.

Suelte el[EMERGENCY STOP].

Pulse [RESET] para eliminar todas las alarmas.

Mueva el eje Z en la dirección negativa (-) hasta que el husillo apoye en el bloque.

Pulse [EMERGENCY STOP].

Fije un elevador en el soporte [3] para el Transductor/Contador.

 Precaución: Cuando el husillo está separado del adaptador del motor, el conjunto del motor debe ser apoyado por el elevador.

Desconecte el tubo de suministro de aceite.

Retire el racor de suministro de aceite.

Retire los (4) tornillos [2] que fijan el adaptador del motor [1] al husillo.

Retire los (6) tornillos de retención [4] para la brida del husillo [3].

Suelte el [EMERGENCY STOP].

Presione [RESET] para eliminar las alarmas.

Mueva lentamente el eje Z en incrementos de 0.001" en la dirección positiva (+) una distancia de 0.04" (1 mm).

 Nota: El husillo [2] cae 1/32" (1 mm) de la fundición del husillo [1].

Si el husillo no cae, utilice una llave de correa para girar el husillo 1/4 de vuelta en sentido horario (a la derecha) para aflojarlo.

Utilice el polipasto para elevar el conjunto de motor [3] al mismo tiempo que mueve el eje Z.

Mueva el eje Z en la dirección positiva (+) hasta que pueda extraer el husillo [4].