Multiquip EHTX44Y5 operation manual Hydraulic Pump Pressure Test Ports

Page 40

mAINTENANCE

To access the right and left hydrostatic pump test ports, remove the grill guard. It is best to use two gauges simultaneously, but it is possible to use only one gauge and repeat the procedure for each side.

Connect the pressure gauges to right and left test ports as shown in Figure 47.

To fully test the hydrostatic system, the spiders will need to be locked so that they cannot rotate. This can be done by wrapping a chain around an arm on each spider, thus chaining them together in the back of the trowel.

Once the pressure gauges are installed and the spiders chained together, the system can be checked.

With the foot pedal in the idle position and the engine at full speed, the pressure should be 150 to 250 psi. If the pressure is less than 150 psi, the charge system may need to be inspected and/ or serviced. In particular, the suction filter and charge pump relief valve should be checked. The suction filter may be plugged, or the relief valve may be stuck. Either condition may cause low charge pressure.

With the engine at 50% to 70% of full speed, and spiders chained together, slowly depress the foot pedal and read the gauges. The pressure should get to at least 3,625 psi (250 bar). If the pressure will not attain 3,625 psi (250 bar), the pump should be inspected and/or serviced by an authorized service representative.

PRESSURE GAUGE

(5,000 PSI)

 

2000

3000

 

1000

150

200

4000

 

100

250

 

 

50

300

 

bar

psi 5000

WIKA

PRESSURE GAUGE

(5,000 PSI)

 

2000

3000

 

1000

150

200

4000

 

100

250

 

 

50

300

 

bar

psi 5000

WIKA

RIGHT-SIDE

HYDROSTATIC

PUMP TEST PORT

QUICK DISCONNECT

DIAGNOSTIC FEMALE

COUPLER

LEFT-SIDE

HYDROSTATIC

PUMP TEST PORT

Figure 47. Hydraulic Pump Pressure Test Ports

page 40 — eHtx44y RIDE-ON TROWEL • operation manual — rev. #0 (01/16/13)

Image 40
Contents Model eHTX44Y5 Fuel and chemical exposure Warnings Silicosis Warning Respiratory HazardsEhtx Ride-On Trowel Page Training checklist CompletelyDaily pre-operation checklist SaFeTy meSSageS Explosive fuel hazardsBurn hazards Rotating parts hazardsGeNeRaL SaFeTy TROWeL SaFeTy ENgINe SaFeTyOrder Form PT-160 Before servicing equipmentBaTTeRy SaFeTy FueL SaFeTy„ Use well-insulated gloves when picking up the battery „ NeveR lift trowel with the operator on the machine TRaNSpORTINg SaFeTy„ aLWayS shutdown engine before transporting ENvIRONmeNTaL SaFeTy/DeCOmmISSIONINg EmISSIONS INFORmaTIONEmission Control Label Label must remain with the engine for its entire lifeDIMENSIONS/SPECIFICATIONS EhtxSpecifications Guaranteed ISO 112012010 BasedGuaranteed ISO 37442010 Based Sound Power Level in dBA bGeneral Information Controls and Indicators Hour Meter Indicates number of hours machine has been used25 20 Engine Components Fuel Filter Removes dirt and water from the engine fuelSetup Trowel Setup InstructionsSeat assembly Battery SetupInspection Hydrauic Oil LevelEngine Oil Level FuelOperation Insert the ignition key into the ignition switch, FigurePlace the engine speed control lever, in the LOW position Steering Place the engine speed control lever, in the High positionTrowel Speed Limiter Control Blade Pitch ControlClean and remove any foreign debris from the trowe Engine Shut-DownMAINTENANCE Remove the air cleaner element Air CleanerOFF position Changing Engine Oil And Filter Checking Engine Oil DailyFilter element from the inside out Operation in Freezing Weather Gal 9.5 litersVol % Freezing Point Boiling Point Anti 108 226Fuel Filter Radiator MaintenanceFuel/Water Separator Battery/Charging System Check and clean battery terminals for corrosionOil And Fuel Lines Checking The V-BeltRight Side Trowel Speed Adjustment Checking/Adjusting Trowel SpeedLeft Side Trowel Speed Adjustment Engine Tune-UpBlade Pitch Adjustment Procedure Blade Pitch Adjustment BoltStabilizer Ring Removal Changing BladesSpider Removal Trowel Arm AdjustmentPlace the trowel on a FLAT, Level surface Remove spider to hydraulic motor retainingscrew Trowel Arm RemovalRemove the trowel arm from the spider plate Locate the trowel arm adjustment tool P/N Checking Trowel Arm StraightnessRe-Assembly Trowel Arm Adjustment Fixture ComponentsChecking Hydraulic Steering Pressure Installing Pans Onto Finisher BladesLifting/Crush Hazard. do not lift trowel with pans attached Hydraulic Pump Pressure Test Ports Checking Steering Pressure Steering Pressure AdjustmentCool Oil1 155-175 PSI Hot Oil 145-165 PSI Press the left pitch rocker switch downward Pitch Pressure Out of SpecificationPitch Pressure Check Pitch Pressure Adjustment Pitch Pressure AdjustmentWiring Diagram SWITCH,KEYHydraulic Diagram Troubleshooting Troubleshooting Ride-On Hydraulic TrowelWiring? Troubleshooting engine Dipstick HERE’S HOW to GET Help