Roland VersaEXPRESS RF-640 Service Notes page 117

Move the Head Carriage by hand to the lock position.
28
Fix the Feed Gear Cover.
29
Fix the Oil Guard Stay.
30
Fix the Grit Encoder.
31
Both sides of the Grit Encoder are the same.
When fixing the Grit Encoder, make sure not to
scratch or leave any fi ngerprints on it.
Screw
Oil Guard Stay
Grit Encoder
3-43
Screw
Feed Gear Cover
Screw