TRANSMISSION
L3560, L4060, L4760, L5060, L5460, L6060, WSM
3-S26
Checking Clutch Pack Pressure
1. Start the engine and warm up the transmission fluid, and then
stop the engine.
2. Remove the clutch pack pressure checking port plug (PT 1/8)
on the GST valve (2).
3. Install the adaptor "D" or GST valve adaptor to the checking
port (1), and then install the threaded joint, cable and pressure
gauge.
4. Start the engine and set the idling speed.
5. Disengage the main clutch and shift the GST lever to "1st"
position, shuttle shift lever to "Forward" position.
6. Measure the pressure.
7. When the clutch pack pressure is not within factory
specifications:
Check the clutch valve and clutch pack.
8. Check the pressure changes while shifting the shuttle shift lever
"Reverse" to "Forward" and shifting the GST lever from
"Neutral" to "12th" or "8th".
9. If the pressure does not change correctly, check the low-pass
valve and proportional reducing valve.
• Do not engage the main clutch while checking.
Condition
• Engine speed
Maximum
• Oil temperature
40 to 60 °C (104 to 140 °F)
•Shifting
GST lever "Neutral" to "1st" to "12th" or "8th"
Shuttle shift lever "Neutral" to "Forward" or "Reverse"
9Y1210824TRS0185US0
Clutch pack pressure Factory specification
2.30 to 2.50 MPa
23.5 to 25.5 kgf/cm
2
334 to 363 psi
Pressure changing while shifting the shuttle shift
lever and main shift lever
It drops on 0.29 MPa
(3 kgf/cm
2
, 43 psi) once,
and it rises to factory
specification quickly.
(1) Clutch Pack Pressure Checking
Port (PT 1/8)
(2) GST Valve
(3) Adaptor
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