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Capo model 4YOU with steam |
Simple,
Fast, best quality Italian & Cuban
style |
Pre-ground,pre-measured coffee in Capsule sealed
in foil for freshness |
Capo model YOU2 without
steam |
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Guru's Choice
Non-oily espresso beans |
Bristot imported
Italian espresso |
Espresso machine
cleaning supplies |
Saeco Brew
grouup Maint. Kit |
Information on this page is for technicians and experienced
persons. All others do so at their own risk.
Replacing the 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. |
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2- remove bean hopper. Unscrew two philip screws
& remove bean hopper (see illustration). |
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3- remove steam valve knob with the
cam-shaft. See illustration above.
4- Remove Torx screw (3). It is in the top rear
edge below the water tank.
5- Below the bean hopper in the rear is philip-head
screw inside a 2" deep hollow, as shown in the
diagram. |
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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). |
 | 5-
Remove the philip screw from inside the deep hole (4) See
illustration. This screw is located at the
bottom, inside a 2" deep
hole.
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| 6- Remove two philip screws in the
front lower left and lower right corners of the top cover. The
right screw is visible just behind the steam pipe. |
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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 touch pad. Once freed, lift the cover up and
lay it in the rear of the machine. While pulling the top cover
out make sure that none of the wires is disconnected
accidentally. If you disconnect any wire, make notes of the
color and position of the wires. Tag the wires if necessary,
to re-connect the wire exactly where it
is disconnected. |
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8- Remove the hair-pin lock on the steam pipe and separate
from the steam valve body.
Installation of the new steam
valve body
Reverse the above steps in the same order (The
steam knob is pushed on the cam, as the last step, after
the cover is installed).
When replacing the cover, insert the screw# 4
in the hollow 2" deep space so it is visible from the bottom.
Aim the visible bottom end of the screw
into the hole, on the lower casing. Turn the screw
two or three circles to hold its place. Settle the cover in
its correct position. Complete installation by fastening all
screws.
Note (1) - To insert O-rings, wet them with
lube to facilitate easy sliding in. Seals work better when
lubricated, especially the O-rings.
Note (2) - Use lubricant to lube the moving
parts in the brew unit, like the piston gasket and the tracks
in which the cup moves up & down for tamping the ground
coffee. |
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Replacing internal parts
(Boiler, Pump, Thermostat, flowmeter) in
Vienna & Trevi models
To access internal parts, the machine has to
be removed from the lower casing. The internal parts are
mounted on a flat plate that partitions the machine between
the brew unit and the rest of internal parts. This partition
slides into two tracks, one on each side. 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, follow the
steps below: |
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1- Lay the machine on its back. Insert a flat
screw driver in the slot as shown in the picture below. Insert
the screw driver into slot shown in the picture below.
While the screw driver is still inside the slot, pull the
plate up enough (about 1/4") to make sure that it
is released from the hook.
2- Remove the cable from the wedged grip.
3- Pull the parts plate up while simultaneously feeding the
cable from below. The plate will not pull up easily of the
cable is not pushed up from the bottom. Continue to pull the
plate until the cable and its plug are out of the casing
(and scream - "Its a Girl").
4- The entire internal parts assembly is out and available
for testing and replacement of individual parts that are
faulty.
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 so for wires on the electronic control board and
the wires on the heating element, thermostats and the
door switch. |
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Picture below
shows brew drive gears and timing switches in the home
position.
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