MEASURING& ADJUSTING PRESSURES SPECIAL TOOL LOCATION FOR SPECIAL TOOL LOCATION FOR 2.3 TRAVELCIRCUIT REVERSE STALL FORWARD STALL A. Travel MainRelief Valve PressureMeasurement 1. PerformMachinePreparation Proceduresas described in 2.1 MACHINE PREPARATION. 2. Start engineandinstall specialtool (refer to page5-3 for tool dimensions) into sprocketon eachside Of machine for stalling forwardmotion of TravelMotors.SeeFigure2.9.
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I ¯ MAKE CERTAIN SPECIALTOOLIS SEATED AGAINSTCRAWLER FRAMEANDBETWEEN SPROCKET TEETH. NEVERALLOW SPECIAL TOOLTO RESTAGAINSTCRAWLER FRAMECORNER REINFORCEMENTS. ENGAGE TRAVELSLOWLY & CAREFULLY UNTIL TOOLIS POSITIONED CORRECTLY 3. Movethrottle control to "HI-IDLE"place KPSS ModeSwitch in "H"-ModeSeeFigure 2.10. 4. PlaceTravelSpeedSelect switchin 2nd(41~) speedposition. SeeFigure 2.10. bothTravelcontrolstogetherto full for5. Operate wardtravel position andhold. SeeFigure2.11. 2 (10,000psi) 6. Recordreading from 700kg/cm Pressure Gauges. Reposition specialtool in sprocketsto stall 7. reversetravel. SeeFigure2.9. 8. Repeatsteps 3 and 4. 9. Operate bothtravel controlstogetherto full reversetravel andhold. Seefigure 2.11, 2 (10,000psi) 10. Recordreading from 700kg/cm Pressure Gauges. 11. Compare readingsto chart for specific model being tested on pages2-15 through2-22. B. Travel MainRelief PressureAdjustment 1. LocateTR1andTR2on the maincontrol valve. SeeFigure 2.12 for SK200~460 exampleand refer to the Performance Inspection Standard Illustration for the particular machine beingadjusted (Pages2-15--2-22). 2. Loosenlock nuts andadjust eachTravel Main Relief until properpressureis achieved. NOTE TR1-Right TravelMainRelief Valve TR2-LeftTravel MainRelief Valve 2 (1640psi) 1 Rotation=Approximately115kg/cm 2 (825psi) 1/4 Rotation=Approximately 58kg/cm 3. After adjustment, securelytighten adjustingmain Iocknuts,beingcareful not to overtighten.
Page5.-4
FIGURE2.9 CONFIGURATION FORSK150THRU SK460
CO.OL/
SWITCH FIGtIRE 2.10
WORK MODE SWITCH
OPERATE BOTH TRAVEL LEVERS TOGETHER FULLSTROKE
! FIGURE2.11
/t ",-:E:~----~’:r-~J~J)
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,
FIGURE2.12
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