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Fixing a Vienna

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Espresso beans

e-mail inquiries to granita@rcn.com

 Instructions on this page are for experienced/Handy persons. All other use at their own risk.

      Please note: Cafiza, Puro Caff and CleanCaf are only for cleaning and back flushing commercial machines. These products are not Descaling chemicals and should not be used in any home espresso. It will not serve the purpose. Stop using these chemicals immediately.

 Always use non-oily espresso beans and avoid clogging of grinder and doser.

 Roasted beans are very dry and thirsty for moisture. Do not refrigerate or freeze coffee beans. (Beans are not seafood or dairy product).

 Do not fill up bean hoppers as a convenience. Until used up, the beans in the bean hopper are exposed to moisture and air which change the quality and taste of coffee.

 Always store roasted coffee beans in air-tight containers. Zip lock bags are ideal for storing coffee beans. Portion the contents of an espresso bag in 4 to 6 parts (portion for use in one day). Place one portion in one bag. Squeeze air out and zip lock. Open on bag at a time.

 Try our non-oily roast Guru's Choice Espresso or Bristot imported Italian beans - Ideal for all semi and fully automatic home espresso machines. See details and choices available. http://www.partsguru.com/EspressoBeans.html Price $19.90 per Kilo. Free  shipping in USA.

 Instructions below are for Saeco Vienna and Spidem Trevi models

The following tools are required for removing the top cover:

 1- Torx screw driver (star shape screw head instead of  Philip head)

2- Philip screw driver (One long and a short arm)   

3- Nose Pliers  

4- A test meter (analog or Digital)

5- A small magnet that is strong enough to pick weight of a quarter.  

6- A 1/4" plastic tube, 3 to 4 ft long.  

7- Vacuum cleaner with narrow long nozzle.                  8- Exploded diagram of internal parts  

9- Wiring diagram

10- Tube of food grade lube.

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Removing Steam valve assembly in Vienna and Trevi models

 In order to replace steam valve assembly in the Saeco Vienna line & Spidem Trevi line models, the top cover has to be removed.

 Parts required: # 34K steam valve kit (for all Vienna & Trevi models) . Order Kit Online

Tools required: Philip screw driver; Flat screw driver, Nose pliers and Torx screw drive, flash light, Food grade lubricant.

 To remove top cover, use the following steps:

 1- remove water tank 

 2- remove bean hopper. Unscrew two philip screws & remove bean hopper (see illustration).

 3- remove steam valve knob with the cam-shaft. See illustration.  The steam valve Cam has two flexible lock pins - one locks the cam in the cam guide (slanted slot) and the other locks the steam knob.
To remove the steam knob with its cam-shaft, open the front door.  Locate the round tip of the flexible cam lock-pin in the slanted slot. Press the pin head to free the cam-shaft, while pulling the steam knob away, to the right. 4- Remove Torx screw (3). It is in the top rear edge below the water tank. 

 

Locate the screws in the illustration, that need to be removed. For access to screw (4), the Bean hopper must be removed first.

It is an ideal opportunity at this time, also to clean and adjust the grinder before closing the top cover. See link for Illustrated Grinder cleaning instructions, on the Espresso Maintenance page.

Also, it is advisable to replace the gasket in the water inlet below the tank (Part # 145841500).

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5- Below the bean hopper in the rear is philip-head screw inside a 2" deep hollow, as shown in the diagram. Remove the philip screw (4) See illustration. This screw is located at the bottom, inside a 2" deep hole.           

6- Remove two philip screws in the front lower left and lower right side of the top cover. The lower right screw is just behind the steam pipe.        

7- Lift the top cover from the back move it a 1/4" forward and 1/3" to the left in order to free the cover from the door hinge, the push buttons on the touch pad. Once freed, lift the cover up and lay it in the rear of the machine. Wires to the cup warmer, the Steam knob microswitch and door safety switch will still be connected to the top cover. Make sure that none of the wires is disconnected accidentally. Make notes of the color and position of the wires. Tag the wires if necessary, to re-connect if the same get disconnected.

8- Remove the hair-pin lock & separate the steam pipe  from the steam valve body.

9- Remove the steam cam microswitch. Disconnect the wires of the microswitch and tag them. The microswitch is mounted on a support that is seated in place with two flexible lock pins at its bottom. Locate the flexible pin at the bottom behind the valve body. Press the pin as you pull the microswitch mount up. See illustration.

11- Remove the hair pin lock on the left of the valve body to free the Teflon steam hose.where steam hose. Make not of the position of O-rings, needle valve and spring, to replace in the same order.

10- The steam valve body is hooked into the machine with two clips in the valve body. (Locate these two clips on the new valve body). Press the valve body and Slide it to the left, to free it from the frame and pull away from the machine. 

12- Separate the steam knob free from the old cam by pressing the flexible pin head.

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 Installation of the new steam valve body in Vienna & Trevi models

To remove the steam valve, it has to be pressed in and shift to the right, to unhook it from the back. Once two hooks are released, the valve body is loose and pulls out. Before removing the valve body,  the steam microswitch has to be removed. The microswitch is mounted on a push down plastic mounting bracket (# in the diagram). Free this bracket by pressing its front locking pin as it is pulled up & out. Disconnect the Teflon hose on the left of the valve body by pulling out  hairpin lock. Remove the cam rod on the right, inserted inside the valve body. Locate the flexible lock pin in the diagonal slot. Press it in as you pull the rod out. Remove and replace all small parts as shown in the steam valve  diagram. To insert O-rings, wet them with lube to facilitate easy sliding in. Seals hold better when lubricated. Refer to and follow the diagram carefully.

(The steam knob is pushed on the cam rod, as a last step after the cover is replaced). 

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 Vienna grinder cleaning and adjustment

 Wiring Vienna-Trevi J-boiler Non Rapid steam

 Vienna-Trevi diagram Rapid steam

 Vienna Trevi line Tune up kit

 Vienna Trevi removed from casing

  Replacing internal parts in  Vienna or Trevi models.     

  (Boiler, Pump, Thermostat, Flow meter) in Vienna & Trevi models

To access internal parts, the entire machine assembly has to be pulled out.

First remove the upper cover, as described under installation of steam valve. 

The internal parts are mounted on a flat center plate that partitions the machine into two half. The front half houses the brew group and the rest of internal parts are mounted on the center plate itself.. This partition slides into tracks, one on each side. Locate the tracks on the left and the right side of the lower casing. The entire plate is held at the bottom with a flexible plastic hook. To pull the plate up with all of the internal parts on it, it has to be freed from the bottom hook. To free the hook, see the picture showing bottom of the machine and follow the steps below:

1- Lay the machine on its back. Insert a flat screw driver in the slot as shown in the picture below.  While the screw driver is still in the slot, pull the plate up enough (about 1/4") to make sure that it is freed from the hook.

2- Remove the cable from the wedged grip. 

3- Pull the center plate (released from the hook) up while simultaneously feeding the cable from below. The plate will not pull up easily if the power supply cable is not pushed up from the bottom. When the center plate is out of the lower casing, continue to pull the power cable and its plug out of the casing.

4- The entire internal parts assembly is out and available for testing and replacement of faulty individual parts, as necessary.

5- Before disconnecting any wires make sure that they are tagged properly. Some wires can get disconnected during the pulling of  internal parts. Check closely to make sure that there are no lose wires before starting work on any other item. This is especially important for wires on the electronic control board and the wires on the heating element, thermostats, steam knob switch and the door switch.

 

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Maintenance of Espresso machines | Espresso machines, parts and repairs | Vienna Trevi Grinder adjustment | Magic Deluxe Repairs | Magic Royal Grinder adjustment | Fixing Traditional Home models | Vienna Internal parts | Italia Grinder Cleaning