22 - 4
Assembling (cont'd)
Fit new piston head seals 3 as follows:
1
Using a blunt instrument (892/01027) as shown at F,
lever the inner seal G into the piston head seal groove,
do not let the seal twist. There are identification marks
on the outer diameter of the seal, make sure the marks
are visible and the seal is free to rotate, if not remove
the seal and refit.
2
Fit outer seal H using the same procedure as step 1.
Check the external grooves are visible.
Position the cylinder on the bench and install the rod
assembly into the cylinder.
Taking care to retain the end cap 1 at the further end of the
piston rod from the cylinder, coat the thread of the cylinder
with JCB Activator. Next apply JCB Threadlocker to the
thread of the end cap. Wait 15 minutes before bringing the
two together and then torque-tighten the end cap into the
cylinder.
Note: If hydraulic oil contacts uncured Threadlocker, a
weakening of the bond will result. Cure times vary according
to the ambient temperature. Allow approximately 1 hour at
20° C between assembly and filling the ram with oil.
Torque Settings
For torque settings required, refer to Technical Data on
page 1 - 1.
Note: When fitting cylinder and piston eye bushes 12,
ensure that the split in the bush is set at 90° to the
longitudinal centreline of the cylinder.
Note: Cold weather operation. When operating in conditions
which are consistently below freezing, it is recommended
that the rams are operated slowly to their full extent before
commencing normal working.
Section E
9803/8550
Section E
22 - 4
Issue 1
Rams
338470
F
G
338480
H
Содержание 1CX
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