wsm m9540, Workshop Manual

Page: 30 / 73

L3-S3
M9540Low Profile, WSM TRANSMISSION
[2] BI-SPEED TURN SYSTEM
Bi-Speed Turn Operating Pressure
IMPORTANT
Q
• Place the tractor on the flat surface and lock the both front
and rear wheels.
• Set the main shift lever and shuttle lever in Neutral position.
1. Place the disassembling stand under the transmission case.
2. Remove the rear wheels.
3. Place the disassembling stand under the rear axle case.
4. Place the disassembling stand under the front axle.
5. Remove the both R.H. and L.H. front wheels and place the
disassemble stand under the front axle for both side.
6. Remove the plug (R1/8) (7) (9) on the solenoid valve assembly
(2).
7. Assemble the adaptor (R1/8), threaded joint, cable and pressure
gauge (1).
8. Start the engine and measure the pressure of each port and each
4WD / Bi-speed turn switch (12) position as the table below.
9. Steer the steering wheel for the end of one side and measure the
oil pressure.
10.If only the pressure in the Bi-speed turn clutch engaged position
is low, check the hydraulic system.
11.If the measurement is not within the factory specifications,
measure the system pressure, and adjust the system pressure
with relief valve (5) if necessary.
Condition
• Engine speed : Approx. 2600 min
−
1
(rpm)
• Oil temperature : 45 to 55 °C
113 to 131 °F
(Reference)
• Turn the adjusting screw after removed cap nuts (3) and lock nut
(4).
• Turn the adjusting screw clockwise direction
→
Pressure
increase.
• Turn the adjusting screw counterclockwise
→
Pressure
decrease.
NOTE
Q
• Plug thread size : R1/8
W1011273
4WD/Bi-speed
turn switch
Brake Pedal 4WD port pressure
Bi-speed turn port
pressure
4WD position Free
2.16 to 2.26 MPa
22 to 23 kgf/cm
2
312.91 to 327.14 psi
0
Bi-speed
position
Free 0
2.16 to 2.26 MPa
22 to 23 kgf/cm
2
312.91 to 327.14 psi
2WD position
Both pedals
are depressed
2.16 to 2.26 MPa
22 to 23 kgf/cm
2
312.91 to 327.14 psi
0
(1) Pressure Gauge
(2) Solenoid Valve Assembly
(3) Cap Nut
(4) Lock Nut
(5) Relief Valve (System Pressure)
(6) Solenoid Valve (Bi-Speed Turn
Check Port)
(7) Plug (Bi-Speed Turn Check Port)
(8) Plug (System Pressure Check Port)
(9) Plug (4WD Check Port)
(10) 4WD Indicator
(11) Bi-speed Turn Indicator
(12) 4WD / Bi-speed Turn Switch
(13) Brake Pedal
a : 4WD “ON”
b : Bi-speed Turn “ON”
c : 2WD (Switch OFF)
KiSC issued 09, 2008 A