Multiquip EHTX44Y5 operation manual Engine Tune-Up, Right Side Trowel Speed Adjustment

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mAINTENANCE

Engine Tune-Up

See your engine manual for specific information on tuning up your engine.

NOTICE

See the engine manual supplied with your machine for appropriate engine maintenance schedule and troubleshooting guide for problems.

CAUTION

ALWAYS disconnect battery cables before attempting any service or maintenance on the ride-on trowel.

Right Side Trowel Speed Adjustment

The right side trowel speed is adjusted by changing the length of the connecting rod (Figure 29) on the pump actuation levers.This is accomplished by adjusting the right side adjustment nut.

PUMP ACTUATION

LEVERS

HYDRAULIC

PUMP

TOP VIEW

RIGHT-SIDE

ADJUSTMENT

Checking/Adjusting Trowel Speed

Because the two hydraulic drive motors operate independent of each other, the trowel speed between them may vary.

CONNECTING

ROD

LEFT-SIDE

ADJUSTMENT

NUT

NUT

If the unit’s steering is difficult to control, or if one spider is spinning noticeably faster or slower than the other, the trowel speed may need to be checked. It is also recommended that the trowel speed be checked at least once a year.

Trowel speed adjustment is a two-step process. First, the left side should be checked and/or adjusted. Second, the right side should be adjusted to match the left.

Left Side Trowel Speed Adjustment

The left side trowel speed is adjusted by the set bolt (Figure 28) located under the operator's platform, and is accessed by opening the storage panel door. Backing the set screw out decreases the left side trowel speed; screwing it inward increases the speed.

SET

BOLT

Figure 28. Trowel Speed Control

(Set Bolt Location)

Figure 29. Pump Adjustment Components

This rod is basically a turnbuckle, (Figure 29). Rotating it in one direction increases the length and corresponding trowel speed. Rotating it the opposite direction decreases the length and trowel speed. The right side trowel speed should be within 3 rpm of the left.

A good starting point in the adjustment process is to adjust the rod such that both trowels begin to rotate at the same time when the foot pedal is slowly depressed. This will, generally, get the speeds fairly close; close enough for use if instrumentation is unavailable (i.e. on the job site). From this point on, some form of instrumentation is required to verify that the trowel speeds are within tolerance. A strobe or magnetic pickup type speed indicator is recommended to verify the speeds.

The trowel speeds should be adjusted on a dry concrete floor with the blades pitched flat. Units with the Yanmar turbocharged engine should be set at 140-160 RPM with the engine at full speed.Blade Pitch

Matching Blade Pitch for Both Sets of Blades

Sometimes it may be necessary to match blade pitch between the two sets of blades. There are some signs that this may be necessary. For example, the differences in pitch could cause a noticeable difference in finish quality between the two sets of blades, or, the difference in blade

page 32 — eHtx44y RIDE-ON TROWEL • operation manual — rev. #0 (01/16/13)

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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 equipment„ Use well-insulated gloves when picking up the battery FueL SaFeTyBaTTeRy SaFeTy „ aLWayS shutdown engine before transporting TRaNSpORTINg SaFeTy„ NeveR lift trowel with the operator on the machine 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 FuelPlace the engine speed control lever, in the LOW position Insert the ignition key into the ignition switch, FigureOperation 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 OFF position Air CleanerRemove the air cleaner element Filter element from the inside out Checking Engine Oil DailyChanging Engine Oil And Filter Operation in Freezing Weather Gal 9.5 litersVol % Freezing Point Boiling Point Anti 108 226Fuel/Water Separator Radiator MaintenanceFuel Filter 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 BladesPlace the trowel on a FLAT, Level surface Trowel Arm AdjustmentSpider Removal Remove the trowel arm from the spider plate Trowel Arm RemovalRemove spider to hydraulic motor retainingscrew Locate the trowel arm adjustment tool P/N Checking Trowel Arm StraightnessRe-Assembly Trowel Arm Adjustment Fixture ComponentsLifting/Crush Hazard. do not lift trowel with pans attached Installing Pans Onto Finisher BladesChecking Hydraulic Steering Pressure Hydraulic Pump Pressure Test Ports Cool Oil1 155-175 PSI Hot Oil 145-165 PSI Steering Pressure AdjustmentChecking Steering Pressure Pitch Pressure Check Pitch Pressure Out of SpecificationPress the left pitch rocker switch downward 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
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