Replacing Brew Group; Draining The Steam Boiler - Rancilio EGRO 55 Series Technical Manual

6.3 REPLACING BREW GROUP ASSEMBLY
REMOVE AND REPLACE THE BREW GROUP ASSEMBLY (BGA)
1 Turn off and unplug the machine
2 Remove the left and right side panels of machine
3 Disconnect the piston motors and brew chamber heating element power cables from the
motherboard
--> The connections are J2, J3 and J16 on the motherboard
4 Disconnect the Tefl on water deliver hoses from the upper and lower pistons
5 Loosen the 2 nuts located behind the BGA
6 Pull the BGA upwards to remove from the door
7 Put new or rebuilt BGA back into machine, be sure to connect all cables and hoses
3
Brew
Chamber
Heating

6.4 DRAINING THE STEAM BOILER

STEPS TO DRAINING THE STEAM BOILER
1. Cool down the machine using the Cool Down function in the programming menu. (Service/Monitor/
Cool Down...)
2. Remove the center bolt located on the bottom of the steam boiler using a 17mm wrench.
PLEASE NOTE: If you disassemble the steam boiler you will need to replace the bottom gasket.
For all machines with serial numbers less than 407263 the gasket's part number is: 54930
For all machines with serial numbers greater than 407263 the gasket's part number is 100351.001
3. When res-assembling the boiler after draining, replace the gasket with a new one and follow these
steps:
3.1 Tighten all bolts y hand
3.2 Using a wrench turn all bolts one at time in order, clockwise 1/8 turn*
3.3 Repeat this process three times (3 x 1/8 turn)
*Tighten bolts a little at a time and work clockwise. If you over tighten one bolt too quickly it may cause
the boiler to leak.
© Copyright 2008. Rancilio North America
Upper
Piston
Motor
Lower
Piston
Motor
- Section 6: Page 5 -
EGRO 55 SERIES TECHNICAL MANUAL
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E55_TM_S6_Adjustment_Maintenance V3