OKADA TOP Series, Инструкция и перечень запасных частей для владельцев и операторов

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Procedure for Setting Pressure and Flow
***Note- Checking and adjusting pressure and flow is mandatory each time a breaker is installed on
a carrier. Improper flow can seriously hinder the performance of the breaker, void the warranty
and or cause severe damage to the breaker.
(1) Flow meter is to be hooked up in place of the attachment. The high pressure line (cab side) at the front
end of the stick will connect to the inlet side of the flow meter. The return line at the opposite front end of
the stick will connect to the outlet of the flow meter.
(2) Open both ball valves.
(3) If your flow meter has a restriction knob, run it out counter clockwise so no restriction is applied.
(4) Set the Carrier to B or Breaker mode, if it has the option, then run carrier until hydraulic oil reaches
operating temperature.
(5) Run carrier up to full throttle, press foot pedal to start breaker circuit. Have a fellow technician observe
max oil flow with no restriction applied, this is you’re Carrier Output Flow . Also, observe the Back
Pressure with no restriction applied, you should always be under 300 PSI of back pressure. Release the
foot pedal and record the max flow and max back pressure on your Warranty Registration form that is
included in the manual.
Note: If Back Pressure is over 300 PSI, make sure your return line dumps straight to the tank on
excavator. If return dumps straight to tank and back pressure is still too high, look for other restriction
such as a partially closed ball valve, couplers, clogged return filter or undersized plumbing.
(6) To set your
Circuit Relief Valve (Secondary Relief Valve), run the engine back up to full throttle and
press down on the breaker pedal. Next, turn the restriction knob on the flow meter in clock wise to
increase restriction to the point where the relief valve is fully open and zero flow is observed. Set relief
to specification.
Note: Most relief valves will raise pressure approximately 500 psi with a quarter turn in the clockwise
and vise-versa to lower the pressure.
(7) To set and record
Internal Oil Flow to PQ characteristic, back off the restriction knob on the flow meter
to 1500 psi and record flow. Do the same at 2000, 2300, 2500 and 2800 psi. Record flow results on the
Product Registration Form that came in the manual and mail it in to Okada.
(8) For final confirmation, it is recommended to check the
Working Pressure to verify it is within range. For
this final step, disconnect the flow meter and connect the hoses to the breaker but Tee in a 5000 psi
Pressure Gauge into the pressure line at the inlet of the breaker. Operate the breaker and observe the
Working Pressure. This number should fall within the specifications or adjustments need to be made. If
the working pressure is above specified limits, slightly lower the Oil Flow until Working Pressure comes
into range.