8-S20
L2800, L3400, WSM
HYDRAULIC SYSTEM
IMPORTANT
■
• Set screw (3) and spool joint 1 (2) are adjusted to very close
accuracy. Do not disassemble them unless necessary.
If disassembled due to unavoidable reasons, be sure to
make the following adjustments before assembling.
■
Spool joint 1 (2)
1. Turn and adjust the spool joint 1 (2) so that the dimension (a)
between the spool joint 2 (1) and the plate 1 (4) is 47.0 to 48.0
mm (1.85 to 1.89 in.).
2. After the adjustment, be sure to adjust the position control
feedback rod.
■
Set screw (3)
1. Set the dimension (b) between the plate 1 (4) and the valve body
to 16.0 mm (0.63 in.)
2. Turn and adjust the set screw (3) so that the clearance (c)
between the set screw (3) and the poppet 2 (5) becomes 0.1 to
0.2 mm (0.0039 to 0.0079 in.).
(When reassembling)
W1017128
Tightening torque
Plug 1
39.2 to 58.8 N·m
4.0 to 6.0 kgf·m
28.9 to 43.4 ft-lbs
Plug 2
29.4 to 49.0 N·m
3.0 to 5.0 kgf·m
21.7 to 36.2 ft-lbs
Unload plug
39.2 to 58.8 N·m
4.0 to 6.0 kgf·m
28.9 to 43.4 ft-lbs
(1) Spool Joint 2
(2) Spool Joint 1
(3) Set Screw
(4) Plate 1
(5) Poppet 2
(6) Valve Body
a : Dimension
b : Dimension
c : Clearance
KiSC issued 08, 2007 A
Tractor Manuals Scotland - Please Do Not Copy
Tractor Manuals Scotland
