14 - 3
Loader Valve
Dismantling
Always work on a clean, dirt free surface.
1
Remove the plug from port B.
2
Remove the cap screws 1 from the end caps 2.
Carefully remove the 'O' ring 3, spring seat 4 and spring
5 from each end cap 2. Keep all parts of each end cap
together. Discard 'O' ring 3.
Note: The four end caps 2 are identical. Do not mix
parts between individual end caps.
3
Remove cap screws 6 from the solenoids 7, then
remove the solenoids (2 off).
4
Remove nuts 8 (2 off) and washers 9 (2 off) from tie rod
10, withdraw tie rod 10.
5
Remove nuts 11 (4 off) and washer 12 (4 off) from tie
rods 13 (2 off), withdraw tie rods 13.
6
Carefully separate inlet section C, operation sections E,
F, G and outlet section D. Discard the 'O' rings 14 (4 off)
from between the sections.
Note: Work on the operation sections E, F, G individually.
Do not interchange parts from individual sections.
7
Carefully push out the check valve 15 and spring 16.
Push out the spool 17. (Only spool E is described, but F
and G are similar.)
8
Remove the auxiliary relief valves 18 (2 from E, 1 from
F).
9
Remove plugs 20 (1 from F, 2 from G), remove and
discard 'O' rings 21 (3 off).
10 Remove the main relief valve 22 from the inlet section C.
Remove and discard 'O' ring 23.
11 Remove the test connector 24 from the inlet section.
Remove and discard 'O' ring 25.
12 Clean all parts in kerosene, inspect and check for
damage.
Damaged sections should be replaced complete.
Assembly
Assembly is a reversal of the dismantling procedure.
Renew all seals and 'O' rings.
Ensure that the spools are inserted with their larger waisted
sections towards the bottom.
Lubricate all parts with hydraulic oil before assembly and all
'O' rings and seals with vaseline.
Torque Settings
Item
Nm
lbf ft
kgf m
Tie Rod 10
(1 off)
44.75
33.0
4.6
Tie Rod 13
(2 off)
20.0
14.0
2.0
A.R.V. 18
(3 off)
44.75
33.0
4.6
M.R.V. 22
(1 off)
44.75
33.0
4.6
Plug 20
(3 off)
44.75
33.0
4.6
Plug B
(1 off)
9.5
7.0
1.0
Cap screws 1 & 6
(6 off)
34.0
25.0
3.5
Section E
9803/8550
Section E
14 - 3
Issue 1
Valves
Summary of Contents for 1CX
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