ABB IRB6400 - INTERMEDIATE GEAR UNIT (U75) Removal

Disassembly/Assembly
Guidelines
IRB 6400
Page 7 - 7
Axis 4 Guidelines
INTERMEDIATE GEAR UNIT (U75) Removal
1. POSITION ROBOT WITH UPPER ARM HORIZONTAL.
2. RELEASE AXIS 4 BRAKE TO ALLOW AXIS 4 TO MOVE TO THE NEU-
TRAL POSITION IT WILL BE IN AFTER MOTOR IS REMOVED.
3. TURN ELECTRICAL DISCONNECT SWITCH OFF AND LOCK IT IN
THE OFF POSITION.
WARNING! BE SURE ELECTRICAL DISCONNECT SWITCH IS
OFF AND LOCKED IN OFF POSITION!
4. DRAIN OIL FROM HOUSING (U61):
a. Remove plug (U59) and washer (U60).
b. Remove plug (U38) and washer (U39).
c. Drain oil.
d. Clean and re-insert plug (U59) with washer (U60) and plug (U38)
with washer (U39).
5. DISCONNECT CABLE (U14) CONNECTORS IN FRAME HOUSING
(S21):
a. Remove screws (S43) and cover (S42).
b. Disconnect connectors (R2.MP4), (R2.MP5-6), (R2.CP), &
(R2.CS).
REFERENCE DRAWINGS
Exploded View:
Assemblies:
3HAB 4163-2 ( pg 13-23)
3HAA 0001-AAS ( pg 14-A)
3HAB 4252-2 ( pg 14-J)
3HAA 0001-AAH ( pg 13-13)
“S” (pg 7-20, 12-2)
“U” (pg 7-22, 12-4)
E
E
Hand Tools
REQUIRED TOOLS