Replacing the Toothed Belt Pulley

Prerequisites

You need the following tools to remove the toothed belt pulley:

oSet of hex keys

NOTE: Do not use ball head hex keys. Excessive torque may cause the ball head to break away. A broken ball head makes the removal of the screw difficult.

For suitable parts, refer to Replacement Equipment and Accessories.

Procedure Overview

Perform the following procedures to replace the toothed belt pulley:

oPreparing the replacement of the toothed belt pulley

oRemoving the toothed belt pulley

oMounting the toothed belt pulley

Preparing the Replacement of the Toothed Belt Pulley

Step	Action
1	Remove the following components depending on the axis configuration: oShaft extension oMotor and/or gearbox oElastomer coupling
2	If installed, remove the cover strip and the strip deflectors.
3	Remove the toothed belt.

Step

Action

Remove the following components depending on the axis configuration:

oShaft extension

oMotor and/or gearbox

oElastomer coupling

If installed, remove the cover strip and the strip deflectors.

Remove the toothed belt.

Removing the Toothed Belt Pulley

Step	Action
1	Remove the circlip (1) at one side of the end block.
2	Remove the toothed belt pulley with bearing (2) as a unit.

Step

Action

Remove the circlip (1) at one side of the end block.

Remove the toothed belt pulley with bearing (2) as a unit.

Mounting the Toothed Belt Pulley

Step	Action
1	Clean both bearing seats in the end block (3).
2	Insert the new toothed belt pulley with the bearing (2).
3	Mount the circlip (1).
4	Mount the toothed belt.
5	If applicable, mount the cover strip.
6	If applicable, mount the shaft extension.
7	If applicable, mount the motor and/or gearbox.