Section 10: Pressure Cylinder Reassembly - Emerson Double-Acting Series Disassembly And Reassembly

Section 10: Pressure Cylinder Reassembly

October 2014
Section 10:
NOTE:
Seals and parts being used in the assembly of cylinders (3) or (3-10) should use hydraulic
fluid as the assembly lubricant. Where Section 10 indicates to "coat or apply fluid", use
hydraulic fluid for lubricating the part being installed.
1.
2.
CAUTION: ALIGN ENERGIZER RING PROPERLY
The energizer ring of the rod seal (6-30) must face the cylinder adapter (piston side).
3.
4.
CAUTION: DO NOT SCRATCH PISTON ROD
Care should be taken to not scratch or damage the piston rod when installing the
cylinder adapter.
5.
6.
7.
8.
NOTE:
The O-ring should be installed against the shoulder of the piston rod.
9.
11 11
Pressure Cylinder Reassembly
The following steps may be performed on one cylinder and then on the other
cylinder or simultaneously on both cylinders.
Coat the piston rod seal (6-30) with fluid and install, lip first, into the cylinder
adapter (2-30).
Install the adapter gasket (6-70) over the piston rod (2-10), rod bushing (2-40)
and up against the housing (1-10).
Install the cylinder adapter (2-30) over the end of the piston rod (2-10).
Arrange the position of the cylinder adapter (2-30) per the identification recorded
in Section 6, Step 5, and retain with the cylinder adapter ferry screws (2-90) and
gasket seals (6-80).
If removed, install a pipe plug (2-110) into the cylinder adapter (2-30) pressure
port location as recorded in Section 6.
Coat the cylinder adapter O-ring seal (6-40) with fluid and install into the
cylinder adapter (2-30) in the groove at the inner end of the threads.
Coat the O-ring seal (6-50) with fluid and install onto the piston rod (2-10).
PISTON SEAL INSTALLATION:
Standard and High Temperature Actuators:
a. Coat piston seal grooves with fluid.
b. Coat one piston U-Cup seal (6-10) with fluid and install into piston seal
groove with the lip of the seal pointing outward toward the side of piston
(2-20).
c. Coat the second U-Cup seal (6-10) with fluid and install into remaining piston seal
groove with lip of the seal pointing outward toward the side of piston (2 20).
Service Instructions
074985 Rev. B
Pressure Cylinder Reassembly