UNITED CPC4000, Operation And Maintenance Manual

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4. Loosen the motor adjustment nuts and move motor forwards to loosen the main drive belt. Remove the
belt from the motor pulley.
5. Remove the eight (8) bolts from the pillow blocks, four (4) on drive side, two (4 ) on free side.
6. Raise the turret and pillow blocks off the frame and slide the old drive belt out under the pillow block
and the new drive belt in.
7. Tighten the eight (8) the pillow block bolts four (4) on drive side, four (4 ) on free side and torque to 80
ft-lbs.?
8. Adjust the main drive belt per the procedure given above as described in Adjusting the Main Drive Belt.
9. Engage the motor brake by pushing in the brake release knob shown in photo 5-4 Motor Brake.
5.2.2 Drive Component Removal
To remove and replace barrel drive components follow these procedures:
1. Empty ALL barrels, position into the cradles and latch cradle lids.
2. Turn OFF the power at the safety disconnect and lock the handle in this position.
3. Release the motor brake by pulling outward on the brake release knob shown in photo 5-4 Motor Brake.
4. Position the turret so that the drive components to be repaired or replaced are conveniently located
and set the motor brake.
5. Remove the two (2) bolts holding the idler arm assembly in place and remove the Idler arm from the
turret.
6. Check the Idler Sprocket Bearing for ease of movement and side play and inspect the sprocket for wear.
Replace Bearing/Sprocket Assemble if necessary. Torque sprocket retainer nut to 50 ft-lbs.?
7. Remove the chain by means of the master link. Clean with mild solvent if necessary and lubricate with
penetrating oil.
8. Inspect the Barrel Drive Sprockets for wear and movement. . . Replace sprocket if wear is excessive.
9. Install Idler Arm Assembly and any sprockets removed and slightly tighten, do not torque.
10. Align Barrel and Turret Sprocket to Idler Sprocket using a measuring device. First measure the distance
from the turret disc (disc that the Idler Assy. is mounted on) the center of the Idler Sprocket, record the
distance. Next adjust the Barrel and Turret Sprockets so that the centerline of the sprocket equals that
of the recorded distance. Refer to photo
5-7 Align Sprockets for a demonstration view. Torque Turret
and Barrel Sprocket setscrew to 20 ft-lbs.
11. Install the chain and lock the master link using the retainer.
5.2.3 Adjusting Barrel Chain
To adjust the barrel chain, please refer to the following procedure (if continuing from the previous section skip
steps 1-5):
1. Empty ALL barrels, position into the cradles and latch cradle lids.
2. Turn OFF the power at the safety disconnect and lock the handle in this position.
3. Release the motor brake by pulling outward on the brake release knob shown in photo 5-4 Motor Brake.
4. Position the turret so that the Idler Arm Assembly for the butterfly assembly that needs adjustment is
conveniently located and set the motor brake.
5. Slightly loosen the two (2) bolts holding the idler arm assembly in place and remove the Idler arm from
the turret.