wsm L503 Workshop Manual page 270

L3130 · L3430 · L3830 · L4630 · L5030, WSM
Checking Regulating Valve Setting Pressure
1. Start the engine and warm up the transmission fluid, and then
stop the engine.
2. Remove the pressure checking port (5) plug (PT 1/8).
3. Install the adaptor "7" to checking port (5) and then install the
adaptor "D", the threaded joint, cable and pressure gauge.
4. Start the engine and set the maximum engine speed. Set the
shift levers to "Neutral".
5. Measure the pressure. (Do not turn the steering wheel.)
6. If the measurement is not within factory specifications, adjust the
regulating valve adjustor (4) on the regulating valve assembly (1).
Regulating valve setting
Factory spec.
pressure
Condition
• Engine speed : Maximum
• Oil temperature : 40 to 60 °C
104 to 140 °F
(Reference)
• Turn to clockwise direction → Pressure is increased
• Turn to counterclockwise direction → Pressure is decreased
(1) Regulating Valve Assembly
(2) Adaptor D
(3) Adaptor 7
Checking Pilot Pressure
1. Start the engine and warm up the transmission fluid, and then
stop the engine.
2. Remove the pilot pressure checking port plug (PT 1/8) on the
GST valve (2).
3. Install the adaptor "D" or GST valve adaptor (3) to the checking
port (1), and then install the threaded joint, cable and pressure
gauge.
4. Start the engine and set the maximum speed.
5. Disengage the main clutch and shift the GST lever to "1st"
position, shuttle shift lever to "Forward" or "Reverse" position.
6. Measure the pressure.
7. When the pilot pressure is not within factory specifications :
Check the pilot orifice is clogged, movement of the shift forks,
shift pistons and shift check valves.
IMPORTANT
• Do not engage the main clutch while checking.
Pilot pressure Factory spec.
Condition
• Engine speed : Maximum
• Oil temperature : 40 to 60 °C
104 to 140 °F
• Shifting : GST lever to be "1st"
Shuttle shift lever to be "Forward" or "Reverse"
(1) Pilot Pressure Checking Port
(PT 1/8)
3-S53
TRANSMISSION
2.74 to 2.94 MPa
28.0 to 30.0 kgf/cm
398 to 427 psi
(4) Regulating Valve Adjustor
(5) Checking Port (PT 1/8)
W1031426
2.30 to 2.50 MPa
23.5 to 25.5 kgf/cm
334 to 363 psi
(2) GST Valve
(3) Adaptor
W1031829
KiSC issued 02, 2007 A
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