Multiquip STX55J6 operation manual Blade Pitch Adjustment Bolt, Changing a Blade

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Adjustments are made by tightening or loosening the blade pitch adjustment bolt (Figure 24).

Figure 24. Blade Pitch Adjustment Bolt

1.Spider Plate

2.Blade Pitch Adjustment Bolt

3.Trowel Lever

4.Trowel Arm

5.Trowel Blade

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 — MAINTENANCE

Changing A Blade

It is recommended that all the blades on the entire machine are changed at the same time. If only one or some of the blades are changed at one time, the machine will not finish concrete consistently and the machine may wobble or bounce.

1.Place the machine on a flat, level surface. Adjust the blade pitch control to make the blades as flat as possible. Note the blade orientation on the trowel arm. This is important for ride-on trowels as the two sets of blades counter-rotate. Lift the machine up, placing blocks under the main guard ring to support it.

2.Remove the bolts and lock washers on the trowel arm, and then remove the blade. (Access is easier if the steps are removed.)

3.Scrape all concrete and debris from the trowel arm.This is important to properly seat the new blade.

4.Install the new blade, maintaining the proper orientation for direction of rotation.

5.Affix the bolts and lock washers.

6.Torque to 9 ft. lbs.

7.Repeat steps 2-6 for all remaining blades.

STX-SERIESRIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #1 (07/16/04) — PAGE 23

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Contents STX Series RIDE-ON Power Trowel Page Heres HOW to GET Help STX-SERIES Table of Contents Training Checklist STX-SERIES Training ChecklistDaily PRE-OPERATION Checklist STX-SERIES Daily PRE-OPERATION ChecklistDo not follow directions STX-SERIES Safety Message Alert SymbolsEmergencies STX-SERIES Safety Message Alert SymbolsMaintenance Safety General SafetyOperation and Safety Decals STX-SERIES Operation and Safety DecalsThis value includes the seat height STX-SERIES SpecificationsGeneral Information STX-SERIES General InformationToolbox Compartment Storage for tools STX-SERIES Controls and Components FrontSTX-SERIES Controls and Components Rear STX-SERIES Controls and ComponentsFuel STX-SERIES PRE-INSPECTIONPRE-INSPECTION Engine OilStarting the Engine Insert the ignition key into the ignition switch FigureSTX-SERIES Initial START-UP Initial START-UPSTX-SERIES Initial START-UP Oil and Charge Indicator LightsSteering STX-SERIES OperationOperation Push both the left and right joysticks forward Figure STX-SERIES OperationLeft Pitch all the way Down Blade Pitch ControlEngine Shut-Down Failure to allow the engine to idleMaintenance Procedures STX-SERIES MaintenanceMaintenance Matching Blade Pitch for Both Sets of Blades STX-SERIES MaintenanceChanging a Blade Blade Pitch Adjustment BoltPressure Gauge Hydraulic Pump Checking Hydraulic PressureChecking Steering Pressure Steering Pressure AdjustmentPitch Pressure Check Pitch Pressure AdjustmentTroubleshooting STX-SERIES TroubleshootingLights optional not working Lights? STX-SERIES TroubleshootingPage Multiquip INC
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