Multiquip BS46H11, BS46HLE, BS46H90 manual Spark arrester cleaning, Blade Pitch Adjustment Procedure

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maintenance

spark arrester cleaning

Clean the spark arrester every 6 months or 100 hours.

1.Remove the 4 mm screw (3) from the exhaust deflector, then remove the deflector. See Figure 46

2.Remove the 5 mm screw (4) from the muffler protector, then remove the muffler protector.

3.Remove the 4 mm screw from the spark arrestor, then remove the spark arrester.

Figure 46. Spark Arrester Removal

4.Carefully remove carbon deposits from the spark arrester screen (Figure 47) with a wire brush.

WIRE

BRUSH

SPARK

ARRESTER

SCREEN

Figure 47. Cleaning The Spark Arrester

5.If the spark arrester is damaged and has breaks or holes, replace with a new one.

6.Reinstall the spark arrester and muffler protector in reverse order of disassembly.

Blade Pitch Adjustment Procedure

The maintenance adjustment of blade pitch is an adjustment that is made by a bolt (Figure 48) on the arm of the trowel arm lever. This bolt is the contact point of the trowel arm lever to the lower wear plate on the thrust collar. The goal of the adjustment is to promote consistent blade pitch and finishing quality. Adjustments are made by tightening or loosening the blade pitch adjustment bolt.

BLADE PITCH

ADJUSTMENT

BOLT

TROWEL LEVER

FINGER

TROWEL

ARM

SPIDER

PLATE

TROWEL

BLADE

Figure 48. Blade Pitch Adjustment Bolt

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?

If it is determined that blade pitch adjustments are required do the following:

1.Place the trowel on a flat, level area free of dirt and debris.

NOTICE

Before any blade pitch adjustments can be made it is essential to have a clean level area free of dirt and debris to test the trowel. Any unlevel spots in the floor or debris under the trowel blades will give an incorrect perception of adjustment. Ideally, a 5 x 5 ft. (1.5 x 1.5 meter), three-quarter inch (19 mm) thick FLAT steel plate should be used for testing.

page 32 — BS46H SERIES WALK-BEHIND TROWEL • operation and parts manUAL — rev. #2 (10/15/13)

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Contents Model BS46HLE Fuel and chemical exposure Warnings Silicosis/Respiratory Warnings Silicosis WarningTable of Contents WALK-BEHIND TrowelTraining checklist CompletelyDaily pre-operation checklist Daily pre-Operation checklistSafety Information SaFeTy meSSageSGENEraL SafETy TrOwEL SafETy ENgiNE SafETyOrder Form PT-160 Before servicing equipmentFUeL SaFeTy TraNSpOrTiNg SafETyENvIRONmeNTaL SaFeTy/DeCOmmISSIONINg EmISSIONS INFORmaTIONEmission control Label Label must remain with the engine for its entire lifeTrowel SPECIFICATIONS/DIMENSIONS Side ViewEngine Specifications 11997+A12010 in m/s2 ΣA8General information Trowel Components 15 14 13 12Engine Components Initial ServicingAssembly and installation Assembly and InstallationHandle Tube Installation Vibratory T-Handle Bar PlacementSafety Stop Switch Connection Pitch Cable InstallationShown in Figure Ground pointEngine Oil Check InspectionBefore Starting Gearbox Oil Belt CheckBelt Guard Check Fuel CheckInspection/operation OperationLifting the Trowel Onto a Slab Lifting BaleOperation Starting the EnginePlace the engine fuel valve lever in the on position Place the choke lever in the Open positionTesting the Centrifugal Safety Stop Switch Starter GripTo Begin Troweling Concrete Finishing TechniquesPitching the Blades Standard Handle Pitching the Blades Quick Pitch HandleManeuvering the Trowel Maneuvering the TrowelPlace the safety stop switch in the OFF position Stopping The EngineOptions Combo BladesClip-On Float Blades Optional Float Discs OptionalTrowel Arm Adjustment Tool Optional Quick Pitch Handle OptionalMaintenance Engine check General CleanlinessEngine Air Cleaner Engine oil Spark PlugBelt Never use a spark plug of incorrect heat rangeSpark arrester cleaning Blade Pitch Adjustment ProcedureSpider removal Bushings or bent trowel armsRemove the trowel arm from the spider plate Changing bladesTrowel arm removal Trowel arm Lever adjustment Checking trowel arm straightnessEnsure the fixture arm is in the up position Shaft and the test surfaceReAssembly Installing Pans Onto Finisher BladesLONG-TERM Storage Troubleshooting Troubleshooting engineAir 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 Suggested Spare Parts To 3 UnitsNameplate and Decals ISO DECAL, Read MANUAL, 2.00 DIA ISO DECAL, LIFTING/CRUSH, 2.4 XISO DECAL, ASK for TRAINING, 2.00 DIA DECAL, Serial PLATE, WBT-CHINAStandard Handle Assy Wire ASSY., Kill Switch Switch ASSY., KillSPACER, Slide Block Guide WASHER, FENDER, 1.5OD X 3/8IDQuick-pitch Handle ASSY. option NUT , QP Trim Cntl Adjustment Adjustment PINQP Adjustment Block Spring Center BalanceGuard Assy Access PANEL, B Finisher Guard RingCLIP, Fast Lead SCREW, Fast LeadGearbox Assy Requires 26 OZ .8 Liters Gearbox Lubricant for OperationSEAL, OIL FLANGE, Input ShaftBEARING, CUP, Timken #M11910 GEAR, Worm B Input ShaftEngine and clutch Assy CONNECTOR, Splice TAP WIRE, Safety SwitchLifting Bale Assembly B FIN WEIGHT, Automatic ClutchSpider Assy 14 1Blade Assembly Lock Washer 3/8 MEDBUSHING, Trowel ARM Spider PlateStabilizer Ring Assy RING, STABILIZER, 16-1/2 ARM 0300B1237 Blade Assy 21906 See Notice below0201 Guard Ring LUG RingEngine service parts 17620Z4H020 28462ZE2W1128462ZE3W01 17210ZE2822Page Page HERE’S HOW to GET Help