How to Install Pantechnicon Linea Mini Steam Knobs

A short picture guide to (carefully) swapping out your Linea Mini Steam Knobs

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A home barista holding espresso machine tools and accessories in a workshop setting with espresso equipment visible in the background

 

Tools Needed:

Flat-head Screwdriver

Philips Screwdriver

17mm Wrench

Adjustable Wrench

4mm Hex Key

Wire Cutters

Needle Nose Pliers

Standard Pliers

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Step 1: Remove cup tray & group cover plate
(Phillips & Flathead Screwdriver)

Person with tattooed arm adjusting a screw on a La Marzocco espresso machine in a workshop setting

 

Person using a blue-handled screwdriver to assemble a white La Marzocco espresso machine, with portafilters visible in the group head compartment

 

Person inserting a paper cup filter into a La Marzocco espresso machine group head in a workshop setting

 

Hands operating La Marzocco Linea Micra espresso machine, pouring espresso into group head

 

Step 2: Remove steam knob cap
(Use palm for custom knobs & screwdriver for stock knobs)

Hands adjusting grinder burr on La Marzocco espresso equipment

 

Hand adjusting the grinder burr on a La Marzocco espresso machine accessory

 

Hands holding La Marzocco group head with water seal, studio detail shot

 

Step 3: Loosen & disengage the copper steam supply tube fitting from
the valve inlet.

Use adjustable wrench to secure valve in place while removing the steam supply tube
(17mm wrench & adjustable wrench)

Person adjusting a brass valve on a La Marzocco espresso machine component inside a blue service box

 

Close-up of espresso machine group head assembly with portafilter and steam wand components

 

Hands-on assembly of a La Marzocco espresso machine component, showing brass fittings and internal mechanisms

 

Close-up of brass fittings and copper piping components in a La Marzocco espresso machine

 

Step 4: Cut cotter pin and remove excess from the valve stem
(Wire Cutters)

* be careful not to touch internal knob threading with tools

Power cord being inserted into a La Marzocco espresso machine power inlet

 

Step 5: Unscrew steam knob to remove from steam valve

* be sure to keep the washers in the same order

Barista adjusting espresso machine component in La Marzocco workshop

 

Installing a wooden portafilter basket into a La Marzocco espresso machine group head

 

Close-up of a brass water inlet valve and water drop symbols on a white espresso machine panel, with espresso machine components visible in the background

 

 

Step 6: Install replacement steam knob by screwing back onto the steam valve

* make sure the washers are in the same order as they were placed originally

Hands installing a portafilter into a La Marzocco espresso machine group head in a workshop setting

 

Close-up of La Marzocco espresso machine control panel with steam wand, pressure gauge, and power buttons

 

Step 7: Insert 4mm wrench into the valve inlet to extend valve stem outward

* be sure not to use sharp tools as it can damage the valve seal

Espresso machine internal components being assembled, showing brass fittings, electrical wiring, and pressure gauge installation

 

Espresso machine internal components and assembly with hand adjusting mechanical part

 

Close-up of steam wand and water inlet on La Marzocco espresso machine, white body with wood accents

 

Step 8: Install bent cotter pin into the valve stem by hand

Remove 4mm tool from valve inlet when cotter pin is fully inserted

Close-up of a small metal spring component held in an open palm, with espresso machine equipment visible in the background

 

Hand adjusting the brew temperature dial on a La Marzocco espresso machine

 

Step 9: Secure valve stem in place with standard pliers

Bend one side of the cotter pin with needle nose pliers

Blue portafilter wrench adjusting group head on La Marzocco espresso machine

 

Close-up of La Marzocco espresso machine group head with pressure gauge and power button

 

Espresso machine portafilter being inserted into group head with wooden handle detail

 

Step 10: Reinstall copper steam supply tube fitting to the valve inlet
(17mm wrench & adjustable wrench)

Technician installing espresso machine component with hands and tools in close-up detail shot

 

Close-up of La Marzocco espresso machine internals showing group head assembly, portafilter, and internal components

 

Step 11: Reinstall cup tray & group cover plate
(Phillips & Flathead Screwdriver)

Barista adjusting espresso machine components with screwdriver, detail view of La Marzocco group head and drip tray assembly

 

Man using a La Marzocco espresso machine with group head visible, accessing the shower screen in a home kitchen setup

 

Step 12: Install steam knob cap onto newly installed steam knob

Hand inserting a portafilter into the group head of a La Marzocco espresso machine during setup

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Questions? Don’t hesitate to reach out. Send us an email at home.usa@lamarzocco.com, or drop us a comment below.

For a concise, picture-less guide, head here