Multiquip STX55Y6 STX-SERIES Maintenance, Matching Blade Pitch for Both Sets of Blades

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Matching Blade Pitch for Both Sets of Blades

Sometimes it may be necessary to match blade pitch between the left and right sets of blades. There are some signs that this may be necessary. For example, the differences in pitch can cause a noticeable difference in finish quality between the left and right sets of blades. The difference in blade pitch can also make the machine difficult to control. This is due to the surface area in contact with the concrete (the blade set with the greater contact area tends to stick to the concrete more).

To synchronize pitch on both sides, the left blade assembly can be pitched by itself. By using the electric blade pitch rocker switches, (Figure 29) the pitch can be syncronized on the left and the right sides.

LEFT TWIN

PITCH MORE PITCH PITCH

ONLY LESS PITCH

BLADES TO BE FLAT

WITH FLOAT PANS

Figure 29. Blade Pitch Rocker Switches

Blade Pitch Adjustment Procedure

The maintenance adjustment of blade pitch is an adjustment that is made by a bolt (Figure 30) on the arm of the trowel blade finger.This bolt is the contact point of the trowel arm to the lower wear plate on the thrust collar.The goal of adjustment is to promote consistent blade pitch and finishing quality.

Watch for the following indications when determining if blade pitch adjustments are necessary:

■Is the machine wearing out blades unevenly (i.e. one blade is completely worn out while the others look new)?

■Does the machine have a perceptible rolling or bouncing motion when in use?

■Look at the machine while it is running, do the guard rings “rock up and down” relative to the ground?

STX-SERIES — MAINTENANCE

Adjustments are made by tightening or loosening the blade pitch adjustment bolt (Figure 30).

1.Spider Plate

2.Blade Pitch Adjustment Bolt

3.Trowel Lever

4.Trowel Arm

5.Trowel Blade

Figure 30. Blade Pitch Adjustment Bolt

The easiest and most consistent way to make this adjustment is to use the Trowel Arm Adjustment Fixture (P.N. 9177) that is manufactured by Whiteman Industries. This fixture will allow consistent adjustment of the trowel arm fingers. It comes with all the hardware necessary to properly accomplish this maintenance and instructions on how to properly utilize this tool. Adjusting the trowel arm fingers without a fixture requires a special talent.

If a trowel arm adjustment fixture is not available and immediate adjustment is necessary; we suggest the following procedure. If you can see or feel which blade is pulling harder, adjust the bolt that corresponds to that blade. Another way to determine which blades need adjustment is to place the machine on a flat surface and pitch the blades as flat as possible. Now, look at the adjustment bolts. They should all barely make contact with the lower wear plate on the spider. If you can see that one of them is not making contact; some adjustment will be necessary.

It will be possible to adjust the “high” bolts down to the level of the one that is not touching, or adjust the “low” bolt up to the level of the higher ones. If possible, adjust the low bolt up to the level of the rest of the bolts. This is the fastest way, but may not always work. Verify that after adjustment, the blades pitch correctly. Often times, if the blades are incorrectly adjusted, they will not be able to pitch flat. This occurs when the adjusting bolts have been raised too high. Conversely, sometimes the adjusting bolts are too low and the blades cannot be pitched high enough for finishing operations.

STX-SERIES • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #0 (03/15/06) — PAGE 35

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Contents STX RIDE-ON Power Trowel STX55Y6 Page Page Page Heres HOW to GET Help STX-SERIES Table of Contents Order via Fax Dealers Only Best Deal! Order via Internet Dealers OnlySee Notes Next STX-SERIES DimensionsThis value includes the seat height Lube Oil CapacityTraining Checklist STX-SERIES Training ChecklistDaily PRE-OPERATION Checklist STX-SERIES Daily PRE-OPERATION ChecklistYou can be Injured if you do not follow these directions STX-SERIES Safety Message Alert SymbolsAlways wear approved eye and hearing protection Always wear approved respiratory protectionFatigue, illness or taking medicine SafetyDo not operate or service this Order Form PT-160 Additional Safety InformationSTX-SERIES Rules for Safe Operation Always keep the work area well organizedAlways keep the battery charged. If Towing Safety PrecautionsSecure portable power cables in cable tray with tie wraps BatteryAlways know the location of the nearest first aid kit Maintenance SafetyEmergencies Hydraulic Steering Intended UseEngine Blades Hydraulic MotorSTX-SERIES Decals Machine Safety DecalsToolbox Compartment Storage for tools STX-SERIES Controls and IndicatorsSTX-SERIES Controls and Indicators Fuel Return Hose Provides fuel to the fuel injection pump STX-SERIES Basic Engine InformationAccelerator system Oil in crankcaseBattery Setup STX-SERIES Trowel SetupTrowel Setup Seat AssemblyHydraulic Oil STX-SERIES PRE-INSPECTIONPRE-INSPECTION Engine OilStarting the Engine STX-SERIES Initial START-UPFuel Initial START-UPEngine Throttle Control Lever Low STX-SERIES Initial START-UPPalm Handle Forward Reverse STX-SERIES OperationOperation SteeringSpeed limiter control located on the control panel Figure STX-SERIES OperationTrowel Speed Limiter Control Left Pitch all the way Down Blade Pitch ControlEngine Shut-Down Failure to allow the engine to idleMaintenance STX-SERIES MaintenanceClean the inside of the dust pan Precleaner ServiceAir Cleaner Daily Remove the air cleaner elementFuel Filter 200 Hours Make sure the correct depth airChanging Engine Oil And Filter Oil Filter 100 HoursLong Term Storage STX-SERIES MaintenanceBattery/Charging System Radiator/Cooling SystemPump Actuation Levers Connecting Rod Maintenance ProceduresChecking/Adjusting Trowel Speed Left Side Trowel Speed AdjustmentMatching Blade Pitch for Both Sets of Blades STX-SERIES MaintenanceTrowel Blade Removal Stabilizer Ring RemovalHex Cap Screw Lock Washer Rod End Hex Nut Stabilizer Ring Changing a BladeBronze Bushings Checking Trowel Arm StraightnessSideview Trowel Arm AdjustmentLocate the trowel arm adjustment tool P/N Adjustment Bolt Distance Locking Nut Fixture ArmRe-Assembly Pressure Gauge Hydraulic Pump Checking Hydraulic PressureChecking Steering Pressure Steering Pressure AdjustmentPitch Pressure Check Pitch Pressure Out of SpecificationDecommissioning Trowel/Components Installing Pans Onto Finisher BladesTroubleshooting STX-SERIES TroubleshootingLights optional not working Lights? STX-SERIES TroubleshootingPage Payment Terms Multiquip INC Your Local Dealer is
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STX55Y6 specifications

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