Section E - Hydraulics
Rams
Lift and Tilt Ram
E-41 E-41
9803-9560-4
Dismantling and Assembly
The numerical sequence shown on the illustration is
intended as a guide to dismantling.
Note: A peg spanner is required for unscrewing the gland
bearing and piston head.
For assembly the sequence should be reversed.
When Dismantling
Discard all seals and 'O' rings.
!MWARNING
To avoid burning, wear protective gloves when
handling hot components. To protect your eyes, wear
goggles when using a wire brush to clean
components.
HYD-1-3
When Assembling
Thoroughly clean the threads of piston head 6, piston rod
3, gland bearing 2 and cylinder 1 with a wire brush. Use
new seals and 'O' rings throughout. Ensure that all threads
are free from grease, hydraulic oil and old locking fluids
using JCB Cleaner/Degreaser. Allow solvent to dry for 15
minutes before applying JCB Activator.
Ensure that lubricants used during assembly do not come
into contact with the locking fluids.
Apply JCB Activator to the threads of the piston head 6.
Allow to dry for 15 minutes before bringing into contact with
JCB Threadlocker and Sealer.
Note: Threadlocker and Activator must not contact seals,
bearing rings or 'O' rings.
Apply JCB Threadlocker & Sealer to all threads of the
piston rod. Fit and torque-tighten the piston head.
Taking care to retain the gland bearing 2 at the further end
of the piston rod from the cylinder, coat the thread of the
cylinder with JCB Activator. Next apply JCB
Threadlocker and Sealer 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.
Table 1. Torque Settings
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.
Item Nm kgf m lbf ft
1 300 31 221
6 200 20 148
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