Carrier 17/19EX Specifikace stáhnout pdf (Strana 237)

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reassemble them to avoid any mix up in parts or damage to the surfaces at the partings.

7. When removing the labyrinth seals, make note of the position of the anti-rotation button

located on the inside of the top half of the seal. Pull up the garter spring surrounding the

floating labyrinth seal and carefully slip out the top half. Rotate the garter spring until the

lock is visible. Twist counterclockwise to disengage the lock, remove the garter spring, then

rotate the lower half of the seal out of the groove in the bearing housing while noting the

orientation of the oil drain holes. Note the condition of these floating labyrinth seals. If they

are cracked or chipped, they must be replaced. Do not attempt to reuse a damaged seal.

8. To remove the bottom bearing half, the shaft must be raised a slight amount to relieve

pressure on the bearing. On the rear end, this can be done by jacking or lifting on the shaft

extension. (Care must be taken to protect the shaft from damage.) On the front end, jacking

or lifting can be done using bolts threaded into the tapped holes provided in the shaft end.

Note: Lift only enough to free the bearing; overlifting the shaft can cause difficulty in removal of

the bearing.

9. Roll the bottom bearing half to the top of the shaft journal and then lift it using suitable

eyebolts threaded into the holes provided. Again avoid any contact with the shaft shoulders

that could damage the bearing thrust faces. Place the lower bearing half on a clean, dry

surface to protect the parting surfaces.

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Carrier 17/19EX Specifikace Strana 237

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