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Service Work Replacing the Light Barrier "Z Axis Up" [03053294- xx] 3.9.3 Mech anical Adjustment (From Version 03) 42 Service Manual SIPLACE Placement Heads DLM3/DLM4 3.10 3 . 1 0 R e p la c in g t h e L ig h t…

Service Work

3.9.3 Mechanical Adjustment (From Version 03) Replacing the Valve Positioning Drive for the Reject Circuit [00367768-xx] (up to

Service Manual SIPLACE Placement Heads DLM3/DLM4 41

► Use a pointed object to carefully turn the cam disk so

that it is in the "starting position" (ball bearing horizon

tally aligned next to the drive shaft).

► Carefully turn the placement star in the direction of

the valve positioning drive so that the two centering

pins behind the ball bearing grasp the fixtures on the

cam disk. The adjustment valve plunger (1) swivels

into the correct position (centering pins parallel to

cam disk).

NOTICE!

As the cam disk of the reject valve positioning drive is be

hind the connection board, this setting is slightly more

complex than that for the placement circuit.

► Press the valve positioning drive in the direction of

the placement star and fasten the drive holder with a

2.5 mm Allen key.

► Now tighten the locking threaded pin with an Allen

key of size 0.89 mm. Press the valve positioning drive

against it. Do not tighten excessively as this could

push the valve positioning drive "backwards".

► Remove the adjustment plunger by turning the place

ment star back and then rotating the adjustment

plunger out of the valve housing.

► Then replace the adjustment plunger with a plunger

and protection ring.

Service Work

Replacing the Light Barrier "Z Axis Up" [03053294-xx] 3.9.3 Mechanical Adjustment (From Version 03)

42 Service Manual SIPLACE Placement Heads DLM3/DLM4

3.10

3.10 Replacing the Light Barrier "Z Axis Up" [03053294-xx]

Replacing the Light Barrier "Z Axis Up" [03053294-xx]

Parts, equipment and tools

▪ Light barrier, Z axis up DLM1/2/3 [03053294-xx]

Overview

Preparation

► Remove the head from the machine. For details about removing and fitting the placement head, refer

to the service manual for your machine.

Removal

► Switch off the machine and secure it to prevent unauthorized reactivation.

► Remove the plug from the slot on the intermediate distributor.

► Undo the two hexagon socket-head screw (1) and remove the flat ribbon cable clamp.

► Loosen the two slotted screws (2).

► Remove the light barrier "Z axis up" (3) with its cable.

► Use the two slotted screws (2) to fix the "Z axis up" light barrier board (3). Move the board as far

upwards as the screws will tolerate.

► Connect the ribbon cable plug to the slot on the intermediate distributor.

► Use the flat ribbon cable clamp and the two hexagon socket-head screws (1) to fix the flat ribbon

cables.

► Further installation is performed by following the above instructions in the reverse order.

1. 2 x M2.0x4 hexagon socket-head screws

2. 2 x slotted screws

3. Light barrier board "Z axis up"

CAUTION

Check how the cables are run!

► Make sure that the flat ribbon cable is not pinched in the guide channel. Make sure that you

push the folded part of the flat ribbon cable for the "Z axis up" light barrier back under the

illumination board.

► Note: a new version is available with a shortened flat ribbon cable.

Service Work

3.9.3 Mechanical Adjustment (From Version 03) Replacing the Z Axis Drive

Service Manual SIPLACE Placement Heads DLM3/DLM4 43

3.11

3.11 Replacing the Z Axis Drive

Replacing the Z Axis Drive

Parts, equipment and tools

▪ DLM1, DLM2, DLM3: Z motor with interference suppression board [03038908-xx]

▪ DLM4: Z motor with interference suppression board [03083864-xx]

Preparation

► Remove the head from the machine. For details about removing and fitting the placement head, refer

to the service manual for your machine.

Overview

Removal

► Switch off the machine and secure it to prevent unauthorized reactivation.

► Remove the head from the machine.

► Remove the plugs (motor tacho and incremental encoder) from the sockets on the intermediate dis

tributor.

► Loosen the four M3x5 hexagon socket-head screws which have been fixed with locking varnish (1).

► First loosen the upper M2.5x12 hexagon socket-head screw (3) of the motor clamp fitting 2 (4), then

the lower one.

► Loosen the two M3x14 hexagon socket-head screws (6) on the motor clamp fitting (5).

► Carefully remove the Z axis drive (2) together with the cables.

1. Hexagon socket-head screws M3x5 with locking var

nish (4x)

2. Z axis drive

3. Hexagon socket-head screws M2.5x12 (2x)

4. Motor clamp upper part /DLM3

5. Motor clamp/DLM3 (do not confuse this with the as

sembly clamp for the Z motor tacho interference sup

pression board)

6. Hexagon socket-head screws M3x14 (2x)

7. Toothed belt