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Steam & Steam Boiler Maintenance

LUCCA M58: Replacing Steam Boiler Element

Tools Needed: Impact Driver 1 7/16" Socket AND/OR 38mm Socket Phillips Screwdriver 7mm Crescent Wrench/Adjustable Wrench New 1400W Element NOTE: Older heating elements were manufactured with 1 7/16" bases, while updated heating elements are being...

LUCCA M58: Replacing V1 Steam Boiler Gauge

Before doing this we recommend allowing your espresso machine to fully cool off and unplugging your machine. Before you can get inside the machine you will need to remove the panels. Tools required: Long phillips screw driver Adjustable wrench...

LUCCA M58: Fill Probe Inspection

Before doing this we recommend draining the steam boiler. The machine should be unplugged and cool to the touch. Tools required: adjustable wrench wire brush First, remove the panels. Before re-installing the panels, plug the machine back in and...

LUCCA M58: Steam Fill Solenoid Inspection

If your machine has flow through the group head but the pump constantly runs, attempting to refill the steam boiler, then a likely suspect is a bad steam fill solenoid valve.If your machine over-fills or fails to fill the steam boiler, a defective...

LUCCA M58: Tightening a Loose Steam Arm

You will need the steam arm to be cooled down for this, we recommend turning the machine off and allowing it to cool down fully before doing this procedure. Tools Needed: 9mm wrench 1. A loose steam arm will look like this, the steam wand itself...

LUCCA M58: Steam Wand Leak

Below are instructions for checking for an internal leak on an M58 steam wand and replacing the rubber seat that seals the steam assembly. Before attempting this repair we recommend unplugging the machine and allowing it to fully cool off. Tools...

LUCCA M58: Reattaching Steam Boiler Indicator Light Lenses

Before doing this we recommend unplugging the machine, allowing it to fully cool off and removing the drip tray, top tray and water tank. Tools required: Adjustable wrench

LUCCA M58: Swapping Steam/Hot Water Knob Components

You will need to turn the machine off and allow it to fully cool down before attempting this procedure. Tools Needed: Adjustable Wrench Towel 1. Remove the steam knob itself, and then remove the outer piece of the steam valve, pointed out here....

LUCCA M58: Cleaning Steam and Hot Water Copper Pipes

The machine MUST be cooled down before undoing any of these fittings for safety purposes. Tools Needed: 17mm wrench Phillips screwdriver 1. Remove the panels of the M58. Steam Arm 1. Take the copper fitting off of the back of the steam arm with...

LUCCA M58: Safety Valve / Vacuum Breaker Replacement

Before doing this you will need to remove the panels from your machines. Unplug the machine and allow it to fully cool off. Tools required: adjustable wrench x2 vice grip zip tie A replacement safety valve / vacuum breaker, available here At this...

LUCCA M58: Resetting and Testing the Safety Switches

Tools Needed: Philips head screwdriver 1. Remove the panels from your machine. 2. Locate both safety switches and depress the center button; you should feel a slight "click". 3. The safety switches on newer model M58s look a bit different, but...

LUCCA M58: Steam/Hot Water Valve Joystick Seal Inspection and Replacement

Tools Needed:- 17mm crescent wrench- 17mm deep socket and ratcheting wrench- 6mm Allen key- Highly recommended: bench vise- Replacement joystick seal gasket 1. Start by removing the panels from the machine.2. Use the 17mm crescent wrench to...

LUCCA M58: Joystick Inspection and Cleaning

Tools Needed:- Large adjustable wrench- Shop towel or hand towel- Pick or similar implement- Molykote food-safe lubricant1. Start with the machine powered off and cool to the touch. Identify the joystick stem and tapered retaining nut.2. Drape the...