Multiquip BS46HLE, BS46H90, BS46H11 manual Spider removal, Bushings or bent trowel arms

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maintenance

2.Pitch the blades as flat as possible. The pitch adjustment bolts (Figure 49) should all barely make contact (0.10 inch max. clearance) with the lower wear plate on the spider. All pitch alignment bolts should be spaced the same distance from the lower wear plate. If one is not making contact, adjustment will be necessary.

GEARBOX

TROWEL

ARM

STEEL TEST

MOUNTING

BAR

SURFACE

 

BLADE

PITCHLOWER

ADJUSTMENT WEAR PLATE

BOLT

Figure 49. Correct Blade Pitch (Flat)

Spider removal

Remove the spider assembly from the gearbox shaft as follows:

1.Locate the cone point square head set screw (Figure 51) and attached jam nut found on the side of the spider assembly.

2.Loosen the jam nut and cone point square head set screw.

3.Carefully lift the upper trowel/gearbox assembly off of the spider assembly. A slight tap with a rubber mallet may be necessary to dislodge the spider from the main shaft of the gearbox.

3.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 after adjustment the blades pitch correctly.

4.Blades that are incorrectly adjusted often will not be able to pitch flat. This can occur if the adjusting bolts are raised too high. Conversely, adjusting bolts that are too low will not allow the blades to be pitched high enough for finishing operations.

5.If, after making blade pitch adjustments the machine is still finishing poorly, blades, trowel arms, and trowel arm bushings may be suspect and should be looked at for adjustment, wear, or damage.

6.Figure 50 illustrates, "incorrect alignment", worn spider

bushings or bent trowel arms.

PITCH

ADJUSTMENT

BOLT

NO

LOWER

GEARBOX

GEARBOX

SHAFT

SET SCREW

(CONE POINT SQ.HD.)

JAM

NUT

YOKE ARM

THRUST COLLAR

BEARING

WEAR RING

THRUST COLLAR

W/BUSHING

LOWER WEAR

PLATE

SPIDER PLATE

WEAR PLATE

“DISHED” EFFECT ON FINISHED CONCRETE

Figure 50. Incorrect Spider Plate Alignment

Figure 51. Spider Removal

BS46H SERIES WALK-BEHIND TROWEL • operatION And parts manual — rev. #2 (10/15/13) — page 33

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Contents Model BS46HLE Fuel and chemical exposure Warnings Silicosis Warning Silicosis/Respiratory WarningsWALK-BEHIND Trowel Table of ContentsCompletely Training checklistDaily pre-Operation checklist Daily pre-operation checklistSaFeTy meSSageS Safety InformationGENEraL SafETy ENgiNE SafETy TrOwEL SafETyOrder Form PT-160 Before servicing equipmentTraNSpOrTiNg SafETy FUeL SaFeTyEmISSIONS INFORmaTION ENvIRONmeNTaL SaFeTy/DeCOmmISSIONINgEmission control Label Label must remain with the engine for its entire lifeSide View Trowel SPECIFICATIONS/DIMENSIONS11997+A12010 in m/s2 ΣA8 Engine SpecificationsGeneral information 15 14 13 12 Trowel ComponentsInitial Servicing Engine ComponentsAssembly and Installation Assembly and installationHandle Tube Installation Vibratory T-Handle Bar PlacementPitch Cable Installation Safety Stop Switch ConnectionShown in Figure Ground pointInspection Before StartingEngine Oil Check Belt Check Gearbox OilBelt Guard Check Fuel CheckOperation Inspection/operationLifting the Trowel Onto a Slab Lifting BaleStarting the Engine OperationPlace the engine fuel valve lever in the on position Place the choke lever in the Open positionStarter Grip Testing the Centrifugal Safety Stop SwitchConcrete Finishing Techniques To Begin TrowelingPitching the Blades Standard Handle Pitching the Blades Quick Pitch HandleManeuvering the Trowel Maneuvering the TrowelStopping The Engine Place the safety stop switch in the OFF positionCombo Blades OptionsClip-On Float Blades Optional Float Discs OptionalQuick Pitch Handle Optional Trowel Arm Adjustment Tool OptionalMaintenance General Cleanliness Engine Air CleanerEngine check Spark Plug Engine oilBelt Never use a spark plug of incorrect heat rangeBlade Pitch Adjustment Procedure Spark arrester cleaningBushings or bent trowel arms Spider removalChanging blades Trowel arm removalRemove the trowel arm from the spider plate Checking trowel arm straightness Trowel arm Lever adjustmentEnsure the fixture arm is in the up position Shaft and the test surfaceInstalling Pans Onto Finisher Blades ReAssemblyLONG-TERM Storage Troubleshooting engine TroubleshootingAir cleaner dirty? Clean or replace air cleaner Or malfunctioning? Or replace switch if necessary Troubleshooting Walk-Behind Trowel Wiring Diagram Page Explanation of Code in Remarks Column To 3 Units Suggested Spare PartsNameplate and Decals ISO DECAL, LIFTING/CRUSH, 2.4 X ISO DECAL, Read MANUAL, 2.00 DIAISO DECAL, ASK for TRAINING, 2.00 DIA DECAL, Serial PLATE, WBT-CHINAStandard Handle Assy Switch ASSY., Kill Wire ASSY., Kill SwitchSPACER, Slide Block Guide WASHER, FENDER, 1.5OD X 3/8IDQuick-pitch Handle ASSY. option Adjustment PIN NUT , QP Trim Cntl AdjustmentQP Adjustment Block Spring Center BalanceGuard Assy Guard Ring Access PANEL, B FinisherCLIP, Fast Lead SCREW, Fast LeadRequires 26 OZ .8 Liters Gearbox Lubricant for Operation Gearbox AssyFLANGE, Input Shaft SEAL, OILBEARING, CUP, Timken #M11910 GEAR, Worm B Input ShaftEngine and clutch Assy WIRE, Safety Switch CONNECTOR, Splice TAPLifting Bale Assembly B FIN WEIGHT, Automatic Clutch14 1 Spider AssyLock Washer 3/8 MED Blade AssemblyBUSHING, Trowel ARM Spider PlateStabilizer Ring Assy 0300B 1237RING, STABILIZER, 16-1/2 ARM Blade Assy See Notice below 219060201 Guard Ring LUG RingEngine service parts 28462ZE2W11 17620Z4H02028462ZE3W01 17210ZE2822Page Page HERE’S HOW to GET Help
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