Branson F42r - Pst Valve; Relief Valve Pressure Test; Pto Valve; Sequence Valve Pressure Test

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CHAPTER 6 HYDRAULIC SYSTEM 3015R(h)/3515R(h)/4015R(h)/F36R(h)/F42R(h) TRACTOR
K42W659A
1. Remove the hydraulic hose (1) from the right side
of the steering cylinder.
2. Connect a hydraulic pressure gauge, hose and
adapter between the steering cylinder port and
hydraulic hose.
3. Start the engine and idle it at a high speed.
4. Turn the steering wheel to its left end position.
Check the needle on the gauge when the relief
valve is operated.
Relief setting pressure:
130 kgf/cm
2
[12.74 MPa / 1,849 psi]
If the measurement is out of the standard, resetting
the relief valve or replace the PST valve.
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8.1 PST VALVE
8.1.1 RELIEF VALVE PRESSURE TEST
8.2 PTO VALVE
8.2.1 SEQUENCE VALVE PRESSURE TEST
1. Unscrew the port G1 plug (PF1/4)(C) of the PTO
valve and connect an adapter, hydraulic pressure
gauge and hydraulic hose.
2. Start the engine and run it at 2,600 rpm.
3. Check the pressure when it starts to drop while it
is rising.
4. Read the pressure value on the hydraulic
pressure gauge.
Sequence valve setting pressure:
16 kgf/cm
2
(1.57 MPa / 227.5 psi)
5. If the pressure cannot reach the specied value,Ifthepressurecannotreachthespeciedvalue,
adjust the sequence valve or replace the PTO
valve.
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K42W660A