Saeco Royal Cogwheel replacement

简介

If your device sputters and doesn't make coffee anymore, it's likely that you have a worn out cogwheel. This guide will show you how to replace it.

You will need to open the device and remove the heating block. This guide shows you how to disconnect the heating block. But this isn't absolutely necessary and you can skip steps 11-17 - if you want. The model shown here is a Saeco Royal Sup 014 but other models are very similar.

你所需要的

步骤 1 Preparing

Saeco Royal Cogwheel replacement, Preparing: 步骤 1 中的图像 1，1

Unplug!
Remove all attachments like water tank, brewing unit etc.
The pictures show a Royal Cappucino One Touch HD8930, but the opening procedure is similar to all models.

翻译

步骤 2 Top

Saeco Royal Cogwheel replacement, Top: 步骤 2 中的图像 1，2

Saeco Royal Cogwheel replacement, Top: 步骤 2 中的图像 2，2

The coffeebean supply is fixed with two screws. Unscrew them and lift it off.
There is a black rubber lid under the bean hopper that you can easily lift off, leaving a large opening.
The adjuster of the grinder has to be solved. Mark the position or just take a picture. This type is fixed with a screw, others are only sticked together.

翻译

步骤 3 Rear side

Saeco Royal Cogwheel replacement, Rear side: 步骤 3 中的图像 1，1

There are two screws to be turned out.

翻译

步骤 4 Front

Saeco Royal Cogwheel replacement, Front: 步骤 4 中的图像 1，3

Saeco Royal Cogwheel replacement, Front: 步骤 4 中的图像 2，3

Saeco Royal Cogwheel replacement, Front: 步骤 4 中的图像 3，3

The screws are situated on the underneath of the cover. This type is held by four screws.

翻译

步骤 5 Lift cover off

Saeco Royal Cogwheel replacement, Lift cover off: 步骤 5 中的图像 1，2

Saeco Royal Cogwheel replacement, Lift cover off: 步骤 5 中的图像 2，2

Now the cover can be raised: first grip on left and right rear side and lift about 10 cm (4 in). Sometimes the cover jams a little bit.
Solve the hoses which lead to the water tank. Perhaps you have to pull out some contacts, (e.g. the yellow-green protection lead), don´t forget to put them on again later.
The cover can be drawn aslant towards the front, sliding it over the hot water pipe.
Most repairs can be done with the cover being laid up partially , it must not be completely removed.

翻译

步骤 6 Remove thermoblock

Saeco Royal Cogwheel replacement, Remove thermoblock: 步骤 6 中的图像 1，1

This is what the removed thermoblock looks like. This one was 14 years old and leaking in various places.

翻译

步骤 7

A look into the open device. The thermoblock is hidden under a pile of cables and tubes.

翻译

步骤 8

It's safer to number the cable connectors on the electronics. You probably just need to disconnect the slightly hidden # 14 connector on the two green cables at the very bottom and # 7 on the blue cable on the top.

翻译

步骤 9

The thermoblock is attached to the wall behind the brew group with only two Phillips screws.
Remove the two Phillips screws circled in red.

翻译

步骤 10

Take out the thermoblock and place it on the machine.
Hold on! The thermoblock is still connected to the machine by many cables and hoses. Don't attempt to completely remove it just yet!

翻译

步骤 11

Pull the clamp on the hose to the steam valve off.
Pull the hose circled in orange out.
There are two seals at the end of the hose that stick to the hose. Exchange them during re-assembly.

翻译

步骤 12

Remove the metal holder of the thermal fuse.
My thermal fuse holder is heavily rusted, this may or may not be the case for you.

翻译

步骤 13

Pull first the clamp, and then the second pressure hose out of the thermoblock.
There are two seals at the end of the hose. They stay stuck either at the end of the hose or afterwards, so don't try to remove them. Exchange them during re-assembly.

翻译

步骤 14

Disconnect the connector with the two gray cables from the thermal switch.

翻译

步骤 15

The blue cable from the thermoblock leads to the connector on the electronics, which is marked with 7 here. This particular plug stuck a lot, so force was required to pull it out.

翻译

步骤 16

Saeco Royal Cogwheel replacement: 步骤 16 中的图像 3，3

The Allen screw, which holds the holder of the two thermocouples, was not easy to open...
This can also be a Phillips screw. It may vary which appears for you.
Therefore, the plug on the electronics with the two green cables was pulled out. The plug has the mark 14 and is at the very bottom of the electronics.
Disconnect the plug with the yellow-green grounding wire from the support valve.

翻译

步骤 17

Thread the green and blue cables out.
The thermoblock is free. Lift it out of the machine.
To replace the thermoblock, the attached components must be removed from the old block and transferred to the new part.

翻译

步骤 18 Cogwheel in the gearbox

Saeco Royal Cogwheel replacement, Cogwheel in the gearbox: 步骤 18 中的图像 1，1

The brewing group is likely stuck in the machine, this is because the inlet nozzle gets stuck in the support valve.
In order to remove the brewing group, you first have to unscrew the Phillips screw with which the inlet nozzle is fastened.
Then, you can take the brew group out with a lot of force. At the same time, the inlet nozzle loosens and gets stuck in the support valve, which there it can be easily removed.

翻译

步骤 19

Saeco Royal Cogwheel replacement: 步骤 19 中的图像 3，3

The gearbox is attached to the center wall with five Phillips screws. Remove them.
Take out the gearbox and set it down on the machine.
All cables can remain connected to the gearbox during repair.

翻译

步骤 20

Remove the five Phillips screws securing the gear cover.
Lift off the gearbox cover.

翻译

步骤 21

Saeco Royal Cogwheel replacement: 步骤 21 中的图像 3，3

The white gear has lost a few teeth.
Lift up the gray gear, you can then remove the white gear.

翻译

步骤 22

When installing, insert the gray gear so that the zero mark points to the axis of the white gear.
Apply suitable grease to the gears before assembly.

翻译

步骤 23

The machine can only function when three microswitches are switched on: one at the front of the middle wall, which is switched by the pomace drawer, one at the top of the middle wall, which is switched by the brewing group and one at the top right outside, which is switched from the side door (in the picture not shown).
The brew group is unlikely to be used properly because the drive shaft is not yet in the correct position. The machine does it by itself, but the microswitches have to be tricked into it: insert small cardboard strips until the switches click.
Engage the machine without brew group and the engine should go to it's home position. Now you can remove the cardboard strips and insert the brewing group.