Oki Microline 520 Service Handbook page 148

3.2.17 Right Ground Plate
1. Perform these procedures: 3.2.01, and 3.2.06.
2. Pull the top tabs (1) of the right ground plate (2) out to free the plate from the claws
of the base frame. You may have to use a screwdriver to work the plate tabs free.
3. Lift the plate and remove it.
NOTE:
Installation
The plate must be securely seated under the claws.
P/N 51010201 Plate: Right Ground
Maintenance
RSPL
3 - 36 Microline 520/521 Service Handbook
Both B.2.05
P/N 59257803