8-S11
MX5100, WSM
HYDRAULIC SYSTEM
(4) Relief Valve (3-Points Hydraulic System)
Relief Valve Setting Pressure
1. Remove the plug (1) from the hydraulic cylinder block (2).
2. Install the adaptor. Then connect the hose and pressure gauge
to the adaptor.
3. Remove the position control lever stopper (5).
4. Start the engine and set at maximum speed.
5. Move the position control lever all way up to operate the relief
valve and read the gauge.
6. If the pressure is not within the factory specifications, remove the
relief plug valve (6) of front hydraulic block (7) and adjust with the
adjusting shims (8).
7. After finishing the relief valve setting pressure test, reset the
position control lever stopper firmly.
Condition
• Engine speed : Maximum
• Oil temperature : 40 to 60 °C (104 to 140 °F)
(Reference)
• Thickness of shims (4) :
0.1 mm (0.0039 in.)
0.2 mm (0.0079 in.)
0.4 mm (0.0157 in.)
• Pressure change per
0.1 mm (0.0039 in.) shim :
Approx. 264.8 kPa
2.7 kgf/cm
2
38.4 psi
W65478932
Relief valve setting
pressure
Factory spec.
18.1 to 19.1 MPa
185 to 195 kgf/cm
2
2625 to 2770 psi
(1) Plug
(2) Hydraulic Cylinder Block
(3) Lowering Speed Adjusting Knob
(4) Position Control Lever
(5) Control Lever Stopper
(6) Relief Valve Plug
(7) Front Hydraulic Block
(8) Adjusting Shim
(9) Washer
To Next Page
Loading...
