TRANSMISSION
L3560, L4060, L4760, L5060, L5460, L6060, WSM
3-S31
Checking High Pressure Relief Valve Pressure
• When checking, park the machine on flat ground, apply the
parking brake.
1. Remove the hex. socket head plug from P1 or P2 port. (P1 is for
forward and P2 is for reverse.)
2. Assemble adaptor C (07916-50371) and threaded joint
(07916-50341) with the gasket between them.
3. Install the assemble adaptor C and threaded joint to P1
(forward) or P2 (reverse) port.
4. Install the cable, threaded joint in relief valve set pressure tester
and high pressure gauge to threaded joint in order.
5. Check to see that parking brake is applied.
6. Run the engine at rated speed.
7. Place the range gear shift lever in H position.
8. Depress the HST pedal, and measure the check and high
pressure relief valve pressure.
9. If the measurement is not within the factory specification, check
the check and high relief valve assembly.
• Measure quickly so that the relief valve may not be in
operation more than 10 seconds.
• High pressure gauge is 40 MPa (400 kgf/cm
2
, 5800 psi) full
scale.
(When reassembling)
• Install the hex. socket head plug to the port with O-ring.
9Y1210824TRS0190US0
Check and high relief
pressure
(Oil temperature at 40 to
60 °C (104 to 140 °F))
Factory specification
33.3 to 36.3 MPa
340 to 370 kgf/cm
2
4830 to 5260 psi
(1) P1 Port (for Forward) (2) P2 Port (for Reverse)
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