Rancilio EGRO 55 Series Technical Manual page 105

6.7 BREW GROUP REBUILD GUIDE
5. REASSEMBLE THE UPA --- Continued
5.8
5.8 Lubricate upper piston auger and auger hole in the piston shaft
LUBE: Krytox RFE PFPE Lube, Loctite PN 29711 (green tube)
5.9 Reassemble piston onto the UPA by turning it down the auger shaft using a 3mm Allen wrench inserted into the gear
box of the UPA (bottom of the mounting plate)
TOOL: 3mm Allen wrench
PLEASE NOTE: Be sure the quick connect faces to the outside, or away from the motor
5.10 Reattach sweeper arm to UPA
TIP: If the sweeper arm is diffi cult to reassemble to the UPA, run the piston down a few turns
inserting a 3mm Allen wrench into the gear box of the UPA and manually moving the piston.
5.11 Set UPA aside for now
5.9
- Section 6: Page 32 -
EGRO 55 SERIES TECHNICAL MANUAL
5.10