TCM FD35C9 - Page 258

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■ADJUSTING RELIEF VALVE
(1) Adjusting main relief valve
① Install a pressure gauge at the inlet of the circuit.
② Operate the pump at the rated speed.
③ Switch over the control valve spools and read the pressure gauge at which the cylinder rod has reached
the end of its stroke.
④ Adjust the adjuster properly so that the necessary pressure be obtained.
⑤ Whenthespeciedpressureisobtained,holdtheadjusterinplaceandtightenthelocknut.
27 - 31 N-m {2.8 - 3.2 kgf-m} [19.9 - 22.9 lbf-ft]
Threads: Hydraulic oil
⑥ Checkthatthespeciedoilpressureisobtained.
(2) Port relief valve
You cannot adjust the port relief valve. If adjustment of the port relief valve is needed, replace it with
a port relief valve assembly whose pressure is factory set.