Maintenance - Service

Maintenance - Service (389)


To shorten the drive chain of a low profile drive unit, please proceed as follows:
  1. Disconnect the electrical supply of the entire conveyor system and secure against reconnection.
  2. Remove the safety cover of the drive unit and unlock the ratchet unit manually. Lift the spring plates only as much as necessary to compress the spring with a suitable tool. Make sure that the tensioner is locked and stays in that position.
  3. Remove the 456 mm long top rail extrusion above the drive station.
  4. Turn the fan of the drive motor in the direction of flow to drive the conveyor manually until a master link (zinced) is visible.
    CAUTION: There is a residual danger because of the non covered chain drive.
  5. Open...

  6. Drive Unit Shortening drive chain low profile


To change the drive motor, please proceed as follows:
  1. Disconnect the electrical and pneumatic supply of the entire conveyor system and secure against reconnection.
  2. Remove the clear front cover of the drive station and release the chain tensioner. Lock it in that position with an adequate device.
  3. Remove the chain from the drive sprocket.
  4. If the drive sprocket does have more than 18 teeth, please remove it from the motor shaft as described before (see other chapter). For smaller sprockets, the sprocket can remain on the output shaft.
  5. Release the motor clamping bolts and remove the motor backwards.
  6. If the drive sprocket is still installed, please mount it to the new motor according to the procedure...

  7. Drive Unit Replacing drive motor long tensioner


To change the re-directional sprockets, please proceed as follows:
  1. Disconnect the electrical and pneumatic supply of the entire conveyor system and secure against reconnection.
  2. Remove the clear front cover of the drive station and release the chain tensioner. Lock it in that position with an adequate device.
  3. Remove the re-directional sprocket attachment bracket by taking off all nine bolts.
  4. Unbolt the re-directional sprockets.
  5. For installation please proceed in reverse order. Pay attention to the correct flow of the chain and install the new re- directional sprockets with locking washers.
  6. Install and check all bolts to be tightened.
  7. Re-tension the chain and reset the chain tensioner.
  8. Re-install...

  9. Drive Unit Replacing re directional sprockets long tensioner


To change the drive sprocket in a drive unit with long tensioner, please proceed as follows:
  1. Disconnect the electrical and pneumatic supply of the entire conveyor system and secure against reconnection.
  2. Remove the clear front cover of the drive station and release the chain tensioner. Lock it in that position with an adequate device.
  3. Remove the chain from the drive sprocket.
  4. Release the mounting bolts of the drive sprocket with an Allen wrench (M6) and remove the bolts with the washer.
  5. Mount the feeding conveyor segment with the spacer strips to the base frame of the Swing Gate.
  6. Pull the drive sprocket of the motor shaft with a suitable puller. The spacer ring has to remain on the motor...

  7. Drive Unit Replacing drive sprocket long tensioner


A replacement of the entire chain is required when the chain is worn out, or worn beyond the limits of the chain tensioner. Signs for that are high soiling, non-moving chain links and rust at the chain, or seeing a red color code on the chain tensioner slider indicating that it is at the end of its travel.
 
To replace the chain in a drive unit with long tensioner, please proceed as follows:
  1. Disconnect the electrical supply of the entire conveyor system and secure against reconnection.
  2. Remove the clear front cover of the drive station and release the chain tensioner. Lock it in that position with an adequate device.
  3. Remove the lower extrusion of the drive station by taking out the three...

To shorten the drive chain, please proceed as follows:
  1. Disconnect the electrical supply of the entire conveyor system and secure against reconnection.
  2. Remove the 228 mm long top rail extrusion above the drive station.
  3. Turn the fan of the drive motor in the direction of flow to drive the conveyor manually until a master link is visible (zinced).
    CAUTION: There is a residual danger because of the non covered chain drive.
  4. Remove the clear front cover of the drive station and release the chain tensioner. Lock it in that position with an adequate device.
  5. Open the master link, and pull the chain to tension and shorten the excessive chain.
  6. Re-connect both chain ends with the master link. Pay attention...

  7. Drive Unit Shortening drive chain long tensioner


LOGOMAT automation systems, Inc. offers different types of drive stations which get used in different applications. Roller conveyors with a bi-directional flow need a reversible drive station with two chain tensioners.

The drive stations that are installed in your conveyor system are listed in the conveyor parts list in detail.

Overview of the different types of drive stations:


To change the end roller, please proceed as follows:
  1. Disconnect the electrical supply of the entire conveyor system and secure against reconnection.
  2. If covers between rollers are installed, remove them by pushing them out from the bottom.
  3. Remove the chain covers between the two last rollers of the conveyor section, as described in the previous chapter.
  4. Remove the plastic chain end support.
  5. Loosen and remove the mounting bolts of the end roller. Relieve the end roller against the chain tension by hand to remove the bolts.
  6. Release the end roller by turning in slightly from the drive chain and remove the end roller sideways (the same way as the friction roller).
  7. Install the new end roller...

    Roller Changing end roller


To change or relocate a friction roller, please proceed as follows:
  1. Disconnect the electrical supply of the entire conveyor system and secure against reconnection.
  2. Remove the chain covers in the area around the roller(s) to be replaced or relocated.
  3. Loosen and remove the mounting bolts of the rollers (M8 socket head bolt with hexagon socket size 6 mm).
  4. To take the friction roller out, release the roller from the drive chain by twisting or sliding sideways. If relocation to an adjoining mounting position is planned, the roller can be shifted sideways.
  5. Remove the friction roller (aslope) upwards.
  6. Install the new roller in reverse order.

    Roller Changing friction roller

All chain covers must be installed completely and...

Only KRUPS Standard Rollers with adjustable nut and silver or golden spring can be adjusted in their friction.
Rollers with a silver spring generate more friction than the gold spring rollers but share the same internal structure, allowing the spring to be changed to increase tension when needed. Warning: Too much friction can wear out the bottom of the pallet.
 
The friction rollers can be adjusted (increased or decreased) by turning the adjusting nut on the axis of the roller with an open-end wrench size 22 mm until the required transportation force is achieved. The adjustment range is predefined in all types of rollers because of the existing thread length.
Tightening the nut increases the...

Roller Adjustments