Epson ES Series - 8.2 Replacing the U1 Belt

Part 2: Maintenance 6. Replacing the Reduction Gear Units
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(8) Place the Joint #2 reduction gear unit back inside Arm #1 and secure it with eight bolts
(M3×40 with plain washer for the ES series; M4×45 for the EL series).
(9) As shown below, grease inside the reduction gear unit (ES: 16g; EL: 40g) and build the
motor unit inside Joint #2.
SK-1A grease