Samson EB 31a-23, Mounting And Operating Instructions

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9-6
EB 31a-23_EN
Edition: November 2021
Speci fi cations subject to change
Service
Fig. | 9-4: Position indicator and graduated ring removal
9.3.2 Hydraulic fl uid removal
Refer to Fig. 9-2, Fig. 9-5 and Fig. 9-6
Ö
Before proceeding to the end caps disassembly is necessary
to empty the HCD bodies (301H and 302H) from the liquid.
Ö
Unscrew and remove the plugs (339).
Ö
If installed remove the external hydraulic circuit.
Fig. | 9-5: Remove the plug in the hydraulic circuit
Gather the liquid contained in the HCD bodies into a container.
Do not scatter the hydraulic liquid contained in the HCD bodies
into the environment.
Make sure to follow the instruction for the collection and disposal
recommended by the manufacturer.
If necessary, please contact PFEIFFER for the information about
HCD liquid product.
Tipp
Note
Fig. | 9-6: Remove the hydraulic circuit
9.3.3 Stop cap screws removal
Refer to Fig. 9-1 and Fig. 9-7
Fig. | 9-7: Remove the stop screws
Ö
Remove both stop cap screws (02) together with nuts (04)
and washers (03).
Ö
Remove the stop caps o-rings (11).
For actuator with additional stroke limitation setting:
Ö
Loosen the nut (04R).
Ö
Unscrew partially the stop screw (221G/222G) out from the
actuator, making sure that the stop screw (221G/222G) is
not in contact with the piston anymore.