Cellboost 999-823 manual Replacing the Drive Sprocket

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Routine Service and Maintenance

Replacing the Drive Sprocket

Overtime, the drive sprocket will wear, especially when used in sandy or clay soils. When this happens, the digging chain will begin to slip. If the chain slips, replace the drive sprocket,

as follows:

1.Raise the trencher a few inches above the ground.

2.Stop the engine and remove the key.

3.Remove the spoils auger (Item 1, Figure 4–22).

4.Loosen the chain tensioning bolt lock nut (Item 14, Figure 4–22) and then rotate the chain tensioning bolt (Item 13, Figure 4–22) to loosen the trencher chain, until you can remove the chain from the boom.

5.Remove the chain (Item 2, Figure 4–22) from the drive sprocket (Item 4, Figure 4–22) by removing the master link pivot pin. See Chain Master Link later in this section.

6.Remove and discard the old drive sprocket, making sure to keep the drive key (Item 3, Figure 4–22).

7.Clean the sprocket mounting surface on the trencher.

8.Slide the new sprocket onto the drive shaft, align the key ways and insert the key locking the sprocket to the shaft.

NOTICE

Inspect the trencher boom for signs of wear. If excessive wear is noted, flip the boom over or

replace it as needed. See Trencher Boom Replacement earlier in this section.

9.Loop the chain over the auger drive shaft and onto the drive sprocket, making sure that the teeth point forward on the upper span.

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Contents Serial No.s 005 and Higher 2418 Page Page Boxer Product Warranty Consequential Damages Track Limited Prorated Warranty Policy Statement Limitation of Remedy and Damages Fold Boxer Warranty RegistrationMertz Manufacturing, LLC Box Ponca City, OK Learn the Signal Words Used with the Safety Alert Symbol Safety IntroductionViii Table of Contents General Specifications TroubleshootingGeneral Safety Safety PrecautionsOperating Safety Safety Precautions Service & Maintenance Safety Jump Starting/Battery Charging Hazards Battery HazardsHydraulic System Hazards Fueling Hazards Safety Precautions Component Locations Operating ControlsRight Front View Item No Left Rear View2424 Safety Decals Engine Hour Meter Gauge Hand Grip Operating Controls Description2422 Service Cycle Table Daily Service ChecksPre-Start Inspection and Operation Pre-Start InspectionPre-Start Inspection and Operation Check all hydraulic hoses, lines and fittings Hydraulic Hose Damage Grease Zerk Locations Pre-Start Inspection and Operation Machine Start-up Operating InstructionsTransportation Machine Shut-downLifting Procedures Machine Lifting Machine Travel ControlsForward Travel Right Turn During Forward Travel Spin Turn 15 Slide Slope Travel Operating Instructions 17 Trencher Boom in Raised Position 19 Trencher Chain Control Lever in Forward Position 21 Trencher at Proper Depth Pre-Start Inspection and Operation Pre-Start Inspection and Operation Routine Service and Maintenance Daily Maintenance Procedures 2436 Air Filter Assembly Hydraulic Hose Damage Track Adjustment Wrench Storage Track Deflection Measurement and Adjustment New Machine Brake-in Maintenance Procedures Hydraulic Oil Filter 10 Hydraulic Oil Check and Fill 11 Battery and Cable Connections Weekly Maintenance Procedures12 Air Filter Assembly Monthly Maintenance ProceduresInstall and secure the fuel lines and reopen the fuel valve 13 Fuel Filter Replacement 14 Battery and Connections 15 Hydraulic Tank Drain Plug Annual Maintenance Procedures16 Hydraulic Oil Check and Fill Draining Fuel Tank General MaintenanceRoutine Service and Maintenance 18 Chain Sag Adjusting Digging Chain Tension19 Chain Tension Adjustment Trencher Boom Replacement Reinstall the boom guard Item 1, Figure Replacing the Digging Teeth 21 Tooth ReplacementReplacing the Drive Sprocket 22 Replacing Drive Sprocket Rear Chain Configuration24 Master Link Chain Master LinkConfiguring the Chain Trencher Chain Parts list Parts List25 Chain Configuration 26 Boxer 118 Hydraulic Interconnect Diagram Boxer 118 Hydraulic Interconnect DiagramProblem Possible Causes Corrective Action TroubleshootingTroubleshooting Penetrate soil easily Troubleshooting Engine System General SpecificationsNoise Data Dotted

999-823 specifications

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