06-B50 TECHNICAL MANUAL-ENGINEERING CPY-2009 - REED

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REED MODEL: B50TRAILER CONCRETE PUMPMAINTPAGE 13• Start up machine and observe for leakage.DO NOT ATTEMPT TO WASH OUT FILTER ELEMENT.These are disposable types and more harm can bedone than worth.CLEANING THE HYDRAULIC TANKThe hydraulic tank should be drained and cleaned after 1000 hours of operation or yearlywhichever comes first. This will assist in keeping the systems clean and in proper condition.To accomplish this the following is offered.• Shut off machine. On pump circuit allow accumulator system to depressurizePlace a suitable size container under the hydraulic tank drain fitting located at back oftank facing the hopper. NOTE: The tank has a capacity of 55gals (208 L). Make sureyour drain container is large enough. Remove drain plug.• Remove the access cover on the hydraulic tank being careful not to damage thegasket• Remove the two (2) suction strainers• After tank has drained, flush the inside of the hydraulic tank with clean solvent andwipe clean with lint free cloths. DO NOT USE PAPER TOWELS. Remove anyparticles from tank bottom and sump• Clean the suction strainers by, disassembling, soaking them in fresh solvent and thenair blow dry. Re-assemble suction stainers.• Install the tank drain plug. Reinstall the suction strainers and access cover with gasket• Clean the filler breather with solvent and air blow dry• Change the hydraulic system filter element• Refill the hydraulic tank with new CLEAN hydraulic fluid, SHELL TELLUS 46• Start machine and check for leaksREVISION:
REED MODEL: B50TRAILER CONCRETE PUMPMAINTPAGE 14DESCRIPTION OF HYDRAULIC SYSTEMThe hydraulic system of the MODEL B50 consists of three separate circuits and althoughintegrated, each is designed to perform a particular function within the operation of theconcrete pump. The three circuits utilized are:• Main Pump Circuit - It controls the function for operation of the hydraulic drive cylinderand material cylinders.• S-tube Shift Circuit - It controls the function for operation of shifting the S-tube fromone material cylinder to the other during concrete pumping.• Auxiliary Circuit - This controls the operational function for the agitator.For the purpose of making the operation of each circuit easier to understand, they are beingdescribed separately.SPECIFICS – PRESSURES• Main Pump Standby Pressure• Main System Max. Pressure• Main System Relief Pressure• S-tube Shift System Relief Pressure• Accumulator Pre-Charge Pressure• Auxiliary System Relief Pressure= 230 PSI (16 Bar)= 4000 PSI (276 Bar)= 4400 PSI (303 Bar)= 2000 PSI (138 Bar)= 1000 PSI ( 69 Bar)= 1500 PSI (103 Bar)• Main System Pressure indicated on drive cylinder 6000 PSI(414 Bar) gauge• Swing Tube Pressure indicated on s-tube 3000 PSI(207 Bar) gaugeSYSTEM FILTRATIONThe hydraulic tank has a capacity of 55 gals (208L) of SHELL TELLUS #46 hydraulic fluid.The start of system filtration begins inside the tank where two (2) magnetic type suctionstrainers are installed. The system return fluid must pass through a 10-micron filter elementbefore returning to the tank and after passing through the oil cooler.REVISION:
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06-B50 TECHNICAL MANUAL-ENGINEERING CPY-2009 - REED

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