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D42 Engine
Safety, Operation, Maintenance
& Parts Manual
LT70S/M MH
LT70S/M DH
LT70L DH
Safety is our #1 concern! Read and understand all
!
safety information and instructions before operating,
setting up or maintaining this machine.
rev. C2.00
rev. C7.02
rev. B7.02
Form #916_80

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Summary of Contents for Wood-mizer D42

  • Page 1 D42 Engine Safety, Operation, Maintenance & Parts Manual LT70S/M MH rev. C2.00 LT70S/M DH rev. C7.02 LT70L DH rev. B7.02 Safety is our #1 concern! Read and understand all safety information and instructions before operating, setting up or maintaining this machine.
  • Page 2: Table Of Contents

    Table of Contents Section-Page SECTION 1 OPERATION Starting The Engine................1-1 SECTION 2 MAINTENANCE Safety......................2-1 Cooling System ......................2-2 Air Filter & Pre-Cleaner................... 2-3 Engine Oil & Filter....................2-4 Fuel Filter ......................... 2-5 Battery ........................2-7 Alternator Belt .....................
  • Page 3 This manual is provided as a supplement to the equipment manufacturer’s manuals. This ® manual provides information specific to the use of this equipment on the Wood-Mizer sawmill. Refer to the sawmill operator’s manual and manufacturer's manual before attempting to operate this equipment.
  • Page 4: Operation

    Operation Starting The Engine SECTION 1 OPERATION Starting The Engine Control Lights See Figure 1-1. The following indicator lights are located on the sawmill control panel. Alternator Charge Indicator: Lights up if the alternator is not charging the battery. Engine Temperature Indicator: Lights up if the engine is overheating. A circuit breaker assembly in the engine harness will shut the engine off if the engine overheats.
  • Page 5 Operation Starting The Engine Engine Start DANGER! Always be sure the blade is disengaged and all persons are out of the path of the blade before starting the engine. Failure to do so will result in serious injury. DANGER! Operate your engine/machine only in well venti- lated areas.
  • Page 6 Operation Starting The Engine Engine Shutoff CAUTION! A minimum 2 minute idle time is recommended to allow the battery charge to recover before the engine is shut off. Turn the key switch to the off (#0) position. D42doc121820 Operation...
  • Page 7: Maintenance

    Maintenance Safety SECTION 2 MAINTENANCE Refer to the manufacturer’s manual for maintenance intervals and procedures unless oth- erwise instructed in this manual. Follow the manufacturer’s recommendations for dusty conditions. IMPORTANT! This manual only provides information about additional procedures or procedures to be performed at dif- ferent time intervals than found in the manufacturer's manu- als.
  • Page 8: Cooling System

    Maintenance Cooling System Cooling System Clean the radiator fins every 40 hours of operation. Spray the radiator with water from a hose or compressed air to clean sawdust from the radiator fins. Do not use a pressure sprayer. CAUTION! Failure to keep the radiator fins clear of sawdust and/or dirt may cause the engine to overheat resulting in damage to the engine.
  • Page 9: Air Filter & Pre-Cleaner

    Maintenance Air Filter & Pre-Cleaner Air Filter & Pre-Cleaner WARNING! Always wear proper and necessary safety equipment when performing service functions. Proper safety equipment includes eye protection, breathing protection, hand protection and foot protection. Service the pre-cleaner every four hours of operation. Service by gently shaking excess sawdust and debris from the foam piece.
  • Page 10: Engine Oil & Filter

    Maintenance Engine Oil & Filter Engine Oil & Filter Check the oil level every 8 hours of operation. Add oil as necessary. See the engine manual for oil viscosity and grade recommendations. IMPORTANT! During initial break-in, change the oil and the oil filter after the first 50 hours and every 200 hours thereafter.
  • Page 11: Fuel Filter

    Maintenance Fuel Filter Fuel Filter See Figure 2-2. Replace the primary fuel filter and prefilter cartridge every 200 hours. After replacing any of the two filter cartridges, loosen the air bleed screw on the main filter and turn the key switch on the control panel to #1 position and wait until fuel begins to flow from the valve and is free of air bubbles.
  • Page 12 Maintenance Fuel Filter See Figure 2-3. Inspect the water separator bowl on the prefilter periodically and drain the bowl as required by turning the drain cap counterclockwise as viewed from the bot- tom. FIG. 2-3 D42doc070721 Maintenance...
  • Page 13: Battery

    Maintenance Battery Battery Check the battery electrolyte level every 50 hours of operation. See manufacturer’s man- ual for instructions. DANGER! Batteries expel explosive gases. Keep sparks, flames, burning cigarettes, or other ignition sources away at all times. Always wear safety goggles and a face shield when working near batteries.
  • Page 14: Alternator Belt

    Maintenance Alternator Belt Alternator Belt The belt tension should be checked after the first 100 hours of operation, when the bat- tery is not charging properly or when the alternator belt is squealing. If the battery contin- ues to not charge properly or the belt continues to squeal after the initial belt adjustment, replace the belt.
  • Page 15: Radiator Fan Belt Adjustment

    Maintenance Radiator Fan Belt Adjustment Radiator Fan Belt Adjustment The fan belt tension should be checked after the first 100 hours of operation, when the engine is overheating or when the fan belt is squealing. If the engine continues overheat- ing or the belt continues to squeal after the initial belt adjustment, replace the belt.
  • Page 16: Rpm Adjustments

    Maintenance RPM Adjustments RPM Adjustments WARNING! Remove the blade before performing any engine service. Failure to do so may result in serious injury. CAUTION! The engine RPM should be adjusted when the engine is warmed up to its working temperature. Check the RPM with a tachometer after the first 20 hours of operation and every 200 hours thereafter.
  • Page 17 Maintenance RPM Adjustments See Figure 2-6. Use the adjustments shown below to adjust the engine RPM (3000[±50] high-end, 1150[±50] idle). Left Adjustment Bolt Right Adjustment Bolt Turnbuckle FIG. 2-6 CAUTION! Do not adjust the high-end RPM above 3200. Doing so may cause damage to the engine. NOTE: When using the 097779 clutch (with reduced diam- eter) for hardwood cutting, adjust the high-end RPM at 2900.
  • Page 18 Maintenance RPM Adjustments See Figure 2-7. Upper Throttle Cable Mount Mounting Bolts Bracket Throttle Cable Throttle Cable Housing 3H0748-12 FIG. 2-7 CAUTION! Failure to properly center the throttle cable in the cable housing may result in premature cable wear. 2-12 D42doc070721 Maintenance...
  • Page 19: 2.10 Centrifugal Clutches Maintenance

    Maintenance Centrifugal Clutches Maintenance 2.10 Centrifugal Clutches Maintenance Always shut off the engine and allow the sawmill to come to a complete stop before performing any engine service. Before replacing the extension springs clean the clutch with compressed air. The extension springs should be replaced every 250h of operation. Check the clutch linings and replace them if they are worn to a thickness smaller than 1.5 mm.
  • Page 20 Maintenance Centrifugal Clutches Maintenance The Seeger-L-circlip is slightly conical in shape and applies a degree of pressure on the plate. It must be fitted with the radial fingers of the cirlip pressing towars the cover ensur- ing at the same time that the circlip is fully seated in the hub groove. CAUTION! Clutches must be fully assembled with the drum in position and cover plated fastened before the driving...
  • Page 21: Replacement Parts

    Replacement Parts Fuel Tank SECTION 3 REPLACEMENT PARTS Fuel Tank DESCRIPTION ( Indicates Parts Available In Assemblies Only) PART # QTY. TANK FUEL ASSEMBLY, DIESEL LT70 518886 TRAY, TANK FUEL 518305-1 COVER, TANK 518303-1 WASHER, 8.4 FLAT ZINC F81054-1 WASHER 8,2 FE/ZN9 F81054-4 BOLT M8X16 -8.8-B-FE/ZN5 PN-85/M-82105 F81002-20...
  • Page 22: Engine Mount Assembly

    Engine Mount Assembly Engine Mount Assembly 3H0902b DESCRIPTION (Indicates Parts Available In Assemblies Only) PART # QTY. MOUNT WELDMENT, REAR D42 ENGINE 097588-1 MOUNT WELDMENT, FRONT D42 ENGINE 089459-1 BOLT, M10X1.25X25-8.8-A HEX HEAD FULL THREAD ZINC F81003-29 WASHER, 10.2 ZINC SPLIT...
  • Page 23: Engine Assembly

    ENGINE, KUBOTA V1505-T-E3B-EU-XL1 100571 Turbocharger, Kubota 097738 Belt, Kubota Fan 097739 Radiator Fan 097740 Filter, Kubota D42 Air B53/207 088025 Filter Cartridge, Kubota D42 Air 097741 Filter, Kubota D42 fuel 088024 Filter Cartdridge, Kubota Fuel D42 097742 Filter, Kubota Oil...
  • Page 24 097758 Motor, Kubota Starter 097759 Pump, Kubota Fuel Injector 097761 Pump, Kubota Fuel Transfer 097762 Pump, Kubota Water 097763 Pulley, D42 Kubota Idler Ptd 087959-1 Radiator Parts (See Section 1.5) Sending Unit, Kubota Heat Sensor 097764 Solenoid, Kubota Stop 097765...
  • Page 25 Replacement Parts Engine Assembly CRIMPSOCKET, 1/2”-20 HOSE 094741 END, JIC 3/4"-16 UNF STRAIGHT, FITTING, JIC 3/4"-16 UNF 094740 CAP, 3/4" 095492 Replacement Parts D42doc063022...
  • Page 26: Primary Fuel Filter

    Replacement Parts Primary Fuel Filter Primary Fuel Filter 3H0459c DESCRIPTION (Indicates Parts Available In Assemblies Only) PART # QTY. FILTER ASSEMBLY, STANDADYNE FUEL FPV-5,7 04WP40/3 088101 FITTING, 8MM, FILTR FPV-5,7 088094 HOSE, 5/16” ID FUEL R80703-2 CLAMP, 11-17MM HOSE F81080-3 BOLT, 3/8-16 X 1 1/4”...
  • Page 27: Acceleration/Brake Assembly

    Replacement Parts Acceleration/Brake Assembly Acceleration/Brake Assembly DESCRIPTION ( Indicates Parts Available In Assemblies Only) PART # QTY. ACCELERATION/BRAKE ASSEMBLY, D42 096417 Bracket, Acceleration/Brake Assy 096434-1 Lever, ptd 096427-1 Turnbuckle, M10 zinc 096433-1 Braking lever, ptd 096419-1 Turnbuckle End SAL10 CX...
  • Page 28 Replacement Parts Acceleration/Brake Assembly Bolt, M8 x 25mm HEX HEAD GR 5.8 ZINC F81002-5 Bolt M10x35-8.8 Fe/Zn5 F81003-17 Nut, M10, Nylon Hex zinc lock F81033-1 Spring Cover, ptd 089435-1 Bolt, M6x12mm HEX HEAD ZINC F81001-7 Washer, M6, FLAT,ZINC F81053-1 Grease Nipple M6 Type B 094213 Rotation Axis, Braking Lever, zinc 096424-1...
  • Page 29: Muffler Assembly

    Replacement Parts Muffler Assembly Muffler Assembly 80_103 DESCRIPTION (Indicates Parts Available In Assemblies Only) PART # QTY. MUFFLER, KUBOTA ENGINE 088100 BOLT, M8X40-8.8 HEX HEAD FULL THREAD ZINC F81002-15 WASHER, 8.2 ZINC SPLIT LOCK F81054-4 NUT, M8 HEX WELD F81032-3 Replacement Parts D42doc063022...
  • Page 30: Radiator Assembly

    GUARD, KUBOTA RADIATOR 097201-1 BOLT M6x16 F81001-15 WASHER, M6 SPLIT LOCK ZINC F81053-3 BRACKET, RADIATOR MOUNT 097305-1 GUARDS WELDMENT, D42 ENGINE 097156-1 BRACKET HOLDER 097306-1 BOLT, M6x12mm HEX HEAD ZINC F81001-7 BOLT, M6X20MM, HH, FULL THREAD, ZINC F81001-2 WASHER, M8, FLAT,ZINC...
  • Page 31 Replacement Parts Radiator Assembly RESERVOIR TANK, D42 ENGINE 097157 GUARD, RADIATOR INNER 097308-1 Replacement Parts D42doc063022 3-11...
  • Page 32: Alternator Assembly

    Replacement Parts Alternator Assembly Alternator Assembly 80_104 DESCRIPTION ( Indicates Parts Available In Assemblies Only) PART # QTY. ALTERNATOR, 190A (FOR LT70) 089466 BELT, 6PK 775 ALTERNATOR 089465 3-12 D42doc063022 Replacement Parts...
  • Page 33 Replacement Parts Alternator Assembly PLATE, D190 ALTERNATOR BELT TENSIONER 088933-1 WASHER, SPECIAL 088932-1 BOLT, M10X90-8.8-B HEX HEAD ZINC F81003-66 BOLT, M10X80-8.8 HEX HEAD ZINC F81003-51 WASHER, 10.5 ZINC FLAT F81055-1 NUT, M10-8-B HEX NYLON ZINC LOCK F81033-1 BOLT, M10 SPECIAL 089472-1 BOLT, M8X90-8.8 HEX HEAD FULL THREAD ZINC F81002-16...
  • Page 34: Engine Guards

    Replacement Parts Engine Guards Engine Guards DESCRIPTION ( Indicates Parts Available In Assemblies Only) PART # QTY. D42 ENGINE GUARDS 097596 Guard Weldment, Left Side Painted 097591-1 Guard Weldment, Right Side Painted 097593-1 Guard Weldment, Front Upper Painted 097597-1 Guard, Front Lower Painted...

Table of Contents