Rancilio Rocky Timer-Mod part 2 Disassembly

by Updated: Mar 13, 2021diy-coffee0 comments

Index of Rocky Timer-Mod posts:

Introduction | Disassembly | Mod1 | Mod2
Buy Rocky Timer-Mod eBook

Avi's Silvia Mega-Mod

My way to a better coffee...

DISCLAIMER - Important!

I chose to add a digital timer to Rocky and make some improvements to this grinder which I’ll describe in the following pages.
In order to make the modification, disassembly of Rocky is first needed.
Before starting disassemble of Rocky, make sure it is disconnected from power. 
Take the power plug out of the mains socket. 

tip Tip: It is advised to use a vacuum cleaner to remove any coffee residue from the hopper and from the burrs before you go on with the disassembly. Your work will be much comfortable without any coffee around.

1. Set the hopper to “0” position.

2. Take off the hopper lid.

3. Unscrew and take off the upper grinder burr cover.
3x screws
4. Take off the hopper.
Slide it upwards and make sure it is not scratched by rear cover.
5. Unscrew and take off the chute. Be very careful as this part is very sensitive to screw pressure and tends to break very easily.
Pay attention to the position of the chute rear gasket.
6. Pull out the portafilter holder if it is connected to your Rocky.
7. Lift and take off the front foot cover.
8. Unscrew rear cover.
3x screws, 2x on top and 1x on base
9. Take off the rear cover by rotating it so it will lay on the table first.

10. Disconnect the power switch connectors.

11. Take off the rear cover after you release the power cable from its strain relief.

12. Unscrew and take off the motor. 2 hex head screws.

tip Tip: The grinder front switch is accessible now and the electrical mod can be performed.
If you need to make further improvements on the front cover, continue with the disassembling.


13. Remove the front grinder switch connectors.

14. Unscrew and remove the earth wire.

15. Unscrew and take off the bottom plastic base.

The front case is disassembled now and ready for the rework.

tip Tip: Front cover is made of Aluminum cast and is sensitive to impact, be careful with the handling of this part.

tip Tip:  Mark each connector you disassemble for easy assembly later on.
If you got confused, don’t worry, Rocky’s manual has the electric diagram ready for you. (see page 46)

tip Tip: Assembling is done in reverse order of the above.

tip Tip: When assembling, remember to screw the upper grinder burr until it can’t turn and then release it a bit to match the 3 threads of the burr to the hopper holes while in “0” position.
This must be done prior of assembly the upper grinder burr cover that attaches the hopper to the burr plate.
When done, turn the hopper to none “0” position to protect the burrs from touching.

tip Tip: Make sure that in “0” position, the hopper fits the stopper pin.
Just rotate it slightly until you’ll feel that the pin found its matching hole in the hopper.
Never force the hopper to less than “0” position as it will bend the hopper stopper screw and might also break the hopper.

tip Tip: Be very careful not to fasten the chute screws too tight as it will break.

If all was disassembled correctly, it is time to start the Timer-Mod

Index of Rocky Timer-Mod posts:

Introduction | Disassembly | Mod1 | Mod2
Buy Rocky Timer-Mod eBook

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electric hazard sign


1. Rocky runs on high voltage.

Any modification made to your Rocky may cause damage to your equipment and harm to yourself or to others. 
Any modification made to your Rocky will void manufacturer warranty.
None of the following mods is recommended by me nor by the manufacturer, Rancilio. 
These pages show only my personal experience and know-how.
If you follow any of the mods, you do it on your own risk and responsibility.

2. Copyright © 2011 Avi. All rights reserved. 

Content including all text and images in part or in whole may not be reproduced, retransmitted, stored, distributed, disseminated, sold, published, broadcast or circulated in any medium
without written consent of the author

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