Dell 2135cn Service Manual page 519

Chapter 3 Removal and Replacement Procedures (RRPs)
6) Release the left shaft of the
ACTUATOR SSI (PL3.2.14) from the hook
of the CHUTE UP (PL3.2.26).
7) Remove the ACTUATOR SSI and the
SPRING ACT SSI (PL3.2.15) by releasing
the right shaft of the ACTUATOR SSI from
the hole of the CHUTE UP.
8) Remove the SPRING ACT SSI from the
ACTUATOR SSI.
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Version 1 2008.02.01