Hatz 3-4L43C Operator's Manual
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Hatz 3-4L43C Operator's Manual

Hatz 3-4L43C Operator's Manual

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CREATING POWER SOLUTIONS.
3-4L43C | 3-4M43 | 3-4M43Z
OPERATOR'S MANUAL
Diesel engine
Hatz Diesel
www.HATZ-DIESEL.com

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Summary of Contents for Hatz 3-4L43C

  • Page 1 CREATING POWER SOLUTIONS. 3-4L43C | 3-4M43 | 3-4M43Z OPERATOR’S MANUAL Diesel engine Hatz Diesel www.HATZ-DIESEL.com...

  • Page 3: Table Of Contents

    3-4L43C, 3-4M43, 3-4M43Z Table of contents Table of contents Notices .........................  5 General information ....................  6 Safety ........................ 7 General information.................... 7 3.1.1 Intended use and foreseeable misuse .............. 7 3.1.2 Machine user or machine manufacturer obligations .......... 8 3.1.3 Representation of safety notes ................
  • Page 4 Table of contents 3-4L43C, 3-4M43, 3-4M43Z 8.2.2 Maintenance plan.................... 51 8.2.3 Checking the intake area of the combustion air .......... 53 8.2.4 Checking the cooling air area................ 54 8.2.5 Change the engine oil.................. 55 8.2.6 Checking the poly v belt .................. 57 8.2.7...

  • Page 5: Notices

    3-4L43C, 3-4M43, 3-4M43Z Notices Notices Contact data © 2016 Motorenfabrik HATZ Ernst-Hatz-Straße 16 94099 Ruhstorf Germany Tel. +49 (0)8531 319-0 Fax +49 (0)8531 319-418 marketing@hatz-diesel.de www.hatz-diesel.com All rights reserved! Copyright The copyright for this Operator's Manual rests entirely with Motorenfabrik HATZ, Ruhstorf.

  • Page 6: General Information

    HATZ tools. The global HATZ service network is at your disposal to ad- vise you and supply you with spare parts. For the address of the Hatz ser- vice station nearest you, please see the directory included or visit the inter- net at: www.hatz-diesel.com...

  • Page 7: Safety

    Any other use is not intended and therefore not permitted. Violations com- promise the safety of the personnel working with the machine. Responsibility is not accepted by Motorenfabrik HATZ for damage resulting from this situa- tion. The operational safety of the machine is only guaranteed if it is used as in- tended.

  • Page 8: Machine User Or Machine Manufacturer Obligations

    Machine manufacturer obligations If you have an engine that is not yet installed in a machine, it is imperative that you follow the Assembly Instructions for HATZ Diesel Engines be- fore installing the engine. These assembly instructions contain important in- formation on how to safely install the engine and are available at your near- est HATZ service station.

  • Page 9: Representation Of Safety Notes

    3-4L43C, 3-4M43, 3-4M43Z Safety All work performed on the machine must be in compliance with the informa- tion provided in the Operator's Manual. Storing the Operator's Manual This Operator's Manual is an integral component of the machine (also when being sold). It must be stored in the direct vicinity of the machine and be ac- cessible to personnel at all times.

  • Page 10: Meaning Of Safety Symbols

    Safety 3-4L43C, 3-4M43, 3-4M43Z Signal words Signal words identify the magnitude of the risk and the seriousness of the possible injuries: Danger symbol/ Meaning signal word This signal word is used to indicate imminently DANGER dangerous situations which, if not avoided, will lead to serious injury or death.
  • Page 11 3-4L43C, 3-4M43, 3-4M43Z Safety Symbol Meaning Warning of explosive substances! Warning of toxic engine exhaust! Warning of corrosive substances! Warning of heavy loads! Warning of environmental damage! Comply with the Operator's Manual or additional documenta- tion from other manufacturers or the user! Additional information that is useful to the reader.

  • Page 12: Safety Notes

    Safety 3-4L43C, 3-4M43, 3-4M43Z Safety notes 3.2.1 Operational safety Introduction This chapter contains all of the important safety instructions for personal pro- tection and for safe and reliable operation. Additional, task-related safety in- structions can be found at the beginning of each chapter.
  • Page 13 The warning labels and information signs on the machine must be followed (see chapter "Labels" 3.3 Labels, page 20). The warning labels and information signs must be kept legible and must be replaced if necessary. For this purpose, contact your nearest HATZ service station. Maintenance work...
  • Page 14 Safety 3-4L43C, 3-4M43, 3-4M43Z General safety instructions DANGER Danger to life and danger of injury due to failure to follow the warnings on the machine and in the Operator's Manual. ▪ Heed the warnings on the machine and in the Operator's Manual.

  • Page 15: Machine-Specific Safety Instructions For Operation

    If you have an engine that is not yet installed in a machine, it is imperative that you follow the Assembly Instructions for HATZ Diesel Engines be- fore installing the engine. These assembly instructions contain important information on safe installa- tion.

  • Page 16: Machine-Specific Safety Instructions For Maintenance Work

    ▪ Check connections, cables and fasteners regularly to ensure they are in good condition. Maintenance work Maintenance work that goes beyond the scope described in this manual must only be performed by qualified technicians. We recommend that you work with one of the over 500 HATZ service stations. Operator’s Manual HATZ...
  • Page 17 Replacing parts ▪ When replacing defective components, we recommend that you use gen- uine HATZ original spare parts (see chapter 2 General information, page ▪ When disposing of parts that can no longer be used, do so in accordance with local environmental regulations or send them to a recycling center.

  • Page 18: Electrical Equipment

    Safety 3-4L43C, 3-4M43, 3-4M43Z CAUTION Danger of burns. There is a danger of burns when working on a hot engine. ▪ Let the engine cool before maintenance. 3.2.4 Electrical equipment Safety notes DANGER Danger to life, danger of injury or danger of property dam- age due to incorrect use of batteries.
  • Page 19 ▪ We cannot be held liable for electrical equipment that is not designed according to HATZ wiring diagrams. ▪ Promptly replace faulty indicator lamps. ▪ Do not disconnect the battery while the machine is running. Resulting volt- age peaks could destroy the electronic components.

  • Page 20: Labels

    Safety 3-4L43C, 3-4M43, 3-4M43Z Labels Warning labels and information signs on the engine Label Meaning Maintenance instructions (see chap- 0,1 mm 0.004" ter 8.1 General maintenance instruc- tions, page 48) .L43 = 1h 250h 500h Only use engine oil with the relevant Nur low-SAPS specification (see chapter 4.3 En-...

  • Page 21: Technical Data

    3-4L43C, 3-4M43, 3-4M43Z Technical data Technical data Engine information and filling quantities Type 3L43C, 3M43, 3M43Z 4L43C, 4M43, 4M43Z Type Air cooled four stroke diesel engine Combustion system Direct injection Number of cylinders Bore/stroke 102 / 105 102 / 105...

  • Page 22: Engine Type Plate

    Technical data 3-4L43C, 3-4M43, 3-4M43Z Engine oil capacities and dipstick equipment Type Oil sump Engine oil capacity Code letter on the liters dipstick With 10.5 3L43C Without With 11.0 3M43 Without With 10.5 3M43Z Without 4L43C With 13.0 4M43 With 14.0...
  • Page 23 3-4L43C, 3-4M43, 3-4M43Z Technical data Max. engine speed (rpm) Model year Displacement (liters) and inspection requirement for special settings Injection pump effective stroke (mm) and engine capacity (kW) "Constant speed only” (for engines with EPA/CARB exhaust certificate only) "Variable speed” (for engines with EPA/CARB exhaust certificate only)

  • Page 24: Engine Oil

    Technical data 3-4L43C, 3-4M43, 3-4M43Z Engine oil Oil quality All brand name oils that satisfy at least the following specification are suit- able: ▪ ACEA E6 (recommended) ▪ ACEA E9 ▪ ACEA C3 / C4 (HTHS ≥ 3.5 mPas) ▪ API CJ-4...

  • Page 25: Fuel

    The use of fuel that does not meet the specifications can lead to engine damage. ▪ Only use fuel that is very low in sulfur or that contains no sulfur at all. ▪ The use of fuel that does not meet specifications requires approval by Motorenfabrik HATZ (main plant). HATZ Operator’s Manual...

  • Page 26: Engine Design

    Engine design 3-4L43C, 3-4M43, 3-4M43Z Engine design Engine 3-4L43C (sealed version - Silent Pack) Pos. Designation Air intake duct for capsule Intake opening for combustion air and cooling air Operator’s Manual HATZ...
  • Page 27 3-4L43C, 3-4M43, 3-4M43Z Engine design Pos. Designation Fuel filter Powerbox Retractable lifting eye, max. load 5000 N Central connector for electrical equipment Control unit for exhaust emission after-treatment Oil filling opening and dipstick Engine type plate Oil filter Cover plate on operating side...
  • Page 28 Engine design 3-4L43C, 3-4M43, 3-4M43Z Engine 3-4M43, 3-4M43Z (standard version) Pos. Designation Fuel filter Powerbox Central connector for electrical equipment Operator’s Manual HATZ...
  • Page 29 3-4L43C, 3-4M43, 3-4M43Z Engine design Pos. Designation Air filter housing cover Control unit for exhaust emission after-treatment Oil filling opening and dipstick Cooling air guide for oil cooler Intake opening for combustion air Side trim panel Oil filter Engine mount...

  • Page 30: Transport, Assembly And Commissioning

    ▪ Only transport the machine when it is switched off and has cooled down. ▪ If you have questions on transporting the machine, please contact your nearest HATZ service station. For contact data, see chapter 1 Impres- sum, page 5 or www.hatz-diesel.com.

  • Page 31: Installation Notes

    ▪ After the engine is installed in the machine, rotating parts must be pro- tected against contact. HATZ safety equipment is available for the belt drive of the cooling fan and alternator. ▪ Comply with all notices and warning labels on the engine and keep them in a legible condition.

  • Page 32: Preparations For Commissioning

    Transport, assembly and commissioning 3-4L43C, 3-4M43, 3-4M43Z Preparations for commissioning ▪ Check the delivered parts for completeness, damage, and other noticeable issues. ▪ Ensure that the setup location is adequately ventilated. DANGER Danger to life from inhaling exhaust gases. Toxic engine exhaust gases can lead to loss of consciousness and even death in closed-off and poorly ventilated rooms.

  • Page 33: Operation And Use

    3-4L43C, 3-4M43, 3-4M43Z Operation and use Operation and use Safety notes NOTICE Comply with the safety chapter! Follow the basic safety instructions in chapter 3 Safety, page 7. WARNING Danger of injury from damage and defects on the machine. ▪...

  • Page 34: Start Preparation

    Operation and use 3-4L43C, 3-4M43, 3-4M43Z Step Test No persons are located in the danger zone of the engine or ma- chine. All safety equipment is in place. Start preparation Procedure Step Activity Before the first start and with an empty fuel system: ▪...

  • Page 35: Starting The Engine

    3-4L43C, 3-4M43, 3-4M43Z Operation and use Procedure Step Activity Fill with fuel if necessary. Place a suitable container under the filter (2) to collect emerging fuel. Open the bleed screw (1) by approx. one turn. Squeeze and release the rubber ball (3) repeatedly until fuel emerges from the bleed screw (1).
  • Page 36 Operation and use 3-4L43C, 3-4M43, 3-4M43Z Overview — HATZ instrument boxes Starting key Pushbutton Pre glow display Operating display Charge control Oil pressure display Air filter maintenance indicator (not activated) Engine temperature display Maintenance interval indicator Engine fault Fault in the area of the exhaust emission after-treatment system...
  • Page 37 Switch off the engine immediately! Danger of engine damage. Check the oil level (see chapter 7.8 Checking the oil level and adding oil if necessary, page 43). Contact Hatz service if the oil level is correct. Air filter maintenance indicator (not activated)
  • Page 38 Operation and use 3-4L43C, 3-4M43, 3-4M43Z Symbol Meaning Fault in the area of the exhaust emission after-treatment system A flashing signal indicates the type of fault (see chapter 9.3 Flash code table for faults on the exhaust emission after-treat- ment system, page 94).

  • Page 39: Switching Off The Engine

    3-4L43C, 3-4M43, 3-4M43Z Operation and use Step Activity When the pre glow display (3) lights up, wait until it goes out then continue with step 3 Turn the starting key to position "II". As soon as the engine is running, release the starting key.
  • Page 40 Operation and use 3-4L43C, 3-4M43, 3-4M43Z NOTICE See also instructions in the documentation for the complete ma- chine. Overview — HATZ instrument boxes Pos. Designation Starting key Ignition lock Operation Procedure Step Activity Turn the starting key (1) to position "0".

  • Page 41: Refueling

    The use of fuel that does not meet the specifications can lead to engine damage. ▪ Only use the fuel specified in chapter 4.4 Fuel, page 25. ▪ The use of fuel that does not meet specifications requires approval by Motorenfabrik HATZ (main plant). HATZ Operator’s Manual...

  • Page 42: Checking The Water Separator

    Operation and use 3-4L43C, 3-4M43, 3-4M43Z Checking the water separator Safety notes CAUTION Danger of environmental damage from spilled fuel. When water is drained from the water separator, a small amount of fuel is drained as well. ▪ Collect any escaped water/fuel mixture and dispose of it ac- cording to local environmental regulations.

  • Page 43: Checking The Oil Level And Adding Oil If Necessary

    3-4L43C, 3-4M43, 3-4M43Z Operation and use Procedure Step Activity Place a suitable container under the drain plug (1). NOTE: In inaccessible locations, an extension hose can be mounted on the drain screw (1). Open the drain screw (1) and drain the water into the container.
  • Page 44 Operation and use 3-4L43C, 3-4M43, 3-4M43Z CAUTION Danger of later engine damage. ▪ Operating the engine with an oil level below the min. mark or above the max. mark can lead to engine damage. ▪ When checking the oil level, the engine must be horizontal and have been switched off for a few minutes.

  • Page 45: Regenerating The Diesel Particulate Filter

    3-4L43C, 3-4M43, 3-4M43Z Operation and use Regenerating the diesel particulate filter The engine has an automatic regeneration process for cleaning the diesel particulate filter (DPF). The diesel particulate filter filters soot particles out of the exhaust gas. Dur- ing regular regeneration the accumulated soot particles are burnt off at high temperatures.
  • Page 46 Operation and use 3-4L43C, 3-4M43, 3-4M43Z Overview — HATZ instrument boxes Pos. Designation Pushbutton Indicator "Fault in the area of the exhaust emission after-treat- ment system". For more information, see chapter 9.3 Flash code table for faults on the exhaust emission after-treatment system, page 94) Indicator "Regeneration of the diesel particulate filter not possi-...
  • Page 47 3-4L43C, 3-4M43, 3-4M43Z Operation and use Step Activity Regeneration of the diesel particulate filter is activated The regeneration process starts automatically and continues un- noticed while the engine is running. The indicator (4) lights up. Regeneration of the diesel particulate filter not possible When the indicator (3) lights up the exhaust gas temperature is too low.

  • Page 48: Maintenance

    ▪ Problems may occur if unsuitable spare parts have been installed. We cannot accept responsibility for damage and secondary damage that result from this. We therefore recommend the use of genuine Hatz original spare parts. ▪ Closely adhere to the maintenance conditions prescribed in this Operators Manual.

  • Page 49: Maintenance Work

    ▪ After the necessary maintenance and repair work is completed, perform a function test (test run). ▪ For maintenance work that is not listed and described in the maintenance documentation, please contact your nearest HATZ service station. Maintenance work Safety note...
  • Page 50 Maintenance 3-4L43C, 3-4M43, 3-4M43Z 3-4M43, 3-4M43Z 0000 042 956 01 3-4L43C 0,1 mm 0.004" .L43 = 1h 250h 500h Operator’s Manual HATZ...

  • Page 51: Maintenance Plan

    3-4L43C, 3-4M43, 3-4M43Z Maintenance 8.2.2 Maintenance plan In new and generally overhauled engines, after 25 operating hours: ▪ Change the engine oil ▪ Check the tappet clearance and adjust if necessary ▪ Check the screw connections (do not retighten the screws for attaching...
  • Page 52 Maintenance 3-4L43C, 3-4M43, 3-4M43Z Symbol Maintenance in- Maintenance activity/Check Chapter terval Every 500 operat- Change the fuel prefilter. 8.2.9 Changing the fuel 500h ing hours prefilter, page 63 Maintain the dry air filter. 8.2.10 Maintaining the dry air filter, page 65 Change the filter cartridge.
  • Page 53 3-4L43C, 3-4M43, 3-4M43Z Maintenance 8.2.3 Checking the intake area of the combustion air Safety notes CAUTION Danger of burns. There is a danger of burns when working on a hot engine. ▪ Let the engine cool. ▪ Wear safety gloves.
  • Page 54 Maintenance 3-4L43C, 3-4M43, 3-4M43Z Procedure Step Activity Check the intake opening (1) for coarse contamination such as leaves, heavy dust deposits, etc., and clean if necessary. Check that the dust outlet opening (2) at the bottom of the cy- clone precleaner is clear.

  • Page 55: Change The Engine Oil

    3-4L43C, 3-4M43, 3-4M43Z Maintenance Procedure Step Activity Check the supply and exhaust air areas for coarse contamina- tion such as leaves, heavy dust deposits, etc., and clean if necessary (see chapter 8.2.7 Cleaning the cooling fan, cooling fins and oil cooler, page 58).
  • Page 56 Maintenance 3-4L43C, 3-4M43, 3-4M43Z Pos. Designation Oil drain screw Drain pipe Procedure — Draining the oil Step Activity Unscrew the oil drain screw (1) and drain the oil entirely. In case of sealed engines, when unscrewing the oil drain screw (1) ensure that the drain pipe (2) is not loosened. Hold it with an open-end wrench.

  • Page 57: Checking The Poly V Belt

    3-4L43C, 3-4M43, 3-4M43Z Maintenance Step Activity After a short test run, check the oil level and correct it if neces- sary (see the chapter 7.8 Checking the oil level and adding oil if necessary, page 43). 8.2.6 Checking the poly v belt...

  • Page 58: Cleaning The Cooling Fan, Cooling Fins And Oil Cooler

    Maintenance 3-4L43C, 3-4M43, 3-4M43Z Damage on the poly v belt Transverse cracks on the rear Fraying on the edges Transverse cracks in multiple ribs Broken ribs Procedure Step Activity Check the belt tensioner (1) for leaks. If the belt tensioner is oily, contact HATZ service.
  • Page 59 3-4L43C, 3-4M43, 3-4M43Z Maintenance CAUTION Danger of burns. There is a danger of burns when working on a hot engine. ▪ Let the engine cool before maintenance. CAUTION Danger of injury. When working with compressed air, foreign bodies may fly into your eyes.
  • Page 60 Maintenance 3-4L43C, 3-4M43, 3-4M43Z Overview — Preparatory activities Pos. Designation Baffle plate Preparation — Cleaning Step Activity On encapsulated engines unscrew the following: (see chapter 5 Engine design, page 26) ▪ Hood ▪ Side panel ▪ Cover plate on operating side ▪...
  • Page 61 3-4L43C, 3-4M43, 3-4M43Z Maintenance Overview — Cleaning Procedure — Cleaning Step Activity Cleaning in case of dry dirt contamination Clean the cooling fan, cylinder head and cylinder with a suit- able brush. Blow out the entire cooling air area with compressed air.

  • Page 62: Checking The Screw Connections

    Step Activity Determine the cause of the oil contamination and have leaks corrected by the HATZ service station. Mount the capsule and air guide parts again. Let the engine run warm to prevent rust formation. 8.2.8 Checking the screw connections...

  • Page 63: Changing The Fuel Prefilter

    3-4L43C, 3-4M43, 3-4M43Z Maintenance 8.2.9 Changing the fuel prefilter Safety notes DANGER Fire hazard from fuel. Leaked or spilled fuel can ignite on hot engine parts and cause serious burn injuries. ▪ Never refuel in the vicinity of open flames or sparks that can cause ignition.
  • Page 64 Maintenance 3-4L43C, 3-4M43, 3-4M43Z Overview Pos. Designation Fuel lines Fuel prefilter Procedure Step Activity Place a suitable container under the filter to collect emerging fuel. Close the fuel feed line. Pull the fuel lines (1) off of the fuel prefilter (2) on both sides.

  • Page 65: Maintaining The Dry Air Filter

    ▪ Renew the filter cartridge after a use period of 500 operating hours. ▪ Four cylinder engines have two filter cartridges. Overview — Removing the air filter cartridge (engines 3-4L43C) Pos. Designation Screw Cover Filter cartridge Air filter housing...
  • Page 66 Maintenance 3-4L43C, 3-4M43, 3-4M43Z Step Activity Only loosen the screws (1) to the point where you can lift off the complete air filter housing (4). Cover the opening in the intake pipe to prevent ingress of dirt and other foreign bodies.

  • Page 67: Checking And Cleaning The Air Filter Cartridge

    3-4L43C, 3-4M43, 3-4M43Z Maintenance Procedure — Removing the air filter cartridge (engines 3-4M43 and 3-4M43Z) Step Activity Release the clamps (1) and remove the cover of the air filter housing (2). Remove adherent dirt in the air filter area. Only loosen the screws (3) to the point where the filter cover (4) can be removed with the filter cartridge (7).
  • Page 68 Maintenance 3-4L43C, 3-4M43, 3-4M43Z Overview — Checking/cleaning the air filter cartridge Pos. Designation Sealing surface Step Activity Dry contamination Blow out the filter cartridge with dry compressed air from the in- side to the outside until dust no longer emerges.

  • Page 69: Checking And Setting The Tappet Clearance

    3-4L43C, 3-4M43, 3-4M43Z Maintenance 8.2.12 Checking and setting the tappet clearance Safety notes CAUTION Danger of burns. There is a danger of burns when working on a hot engine. Only perform the settings while the engine is cold (10-30°C). ▪...
  • Page 70 Maintenance 3-4L43C, 3-4M43, 3-4M43Z Step Activity Insert the ratchet or T-piece 1/2" with the required extension (1) into the square opening. NOTICE Turn the engine in the sense of rotation. Anti-clockwise in both cases - flywheel side or timing cover side.
  • Page 71 3-4L43C, 3-4M43, 3-4M43Z Maintenance Overview — Adjusting the tappet clearance Pos. Designation Hex nut Adjusting screw Feeler gauge Procedure — Adjusting the tappet clearance Step Activity Check the tappet clearance with the feeler gauge (3). For the setting, see the chapter 4 Technical data, page 21 If the tappet clearance needs to be corrected: ▪...

  • Page 72: Changing The Oil Filter

    Release the oil filter (1) with a strap wrench (2) and quickly un- screw it or pull it out. ▪ HATZ order no. for strap wrench: 620 307 01. Dispose of the old filter in accordance with local environmental regulations.

  • Page 73: Change The Main Fuel Filter

    3-4L43C, 3-4M43, 3-4M43Z Maintenance Step Activity Wipe spilled engine oil out of the oil baffle. Lightly oil the gasket (3) of the new oil filter. Screw in the oil filter and tighten it by hand. Add engine oil to the max. mark on the dipstick.
  • Page 74 Maintenance 3-4L43C, 3-4M43, 3-4M43Z CAUTION Danger of environmental damage from spilled fuel. When the filter is removed, a small amount of fuel is drained as well. ▪ Collect any escaping fuel and dispose of it according to lo- cal environmental regulations.
  • Page 75 3-4L43C, 3-4M43, 3-4M43Z Maintenance Overview — Changing the fuel filter Pos. Designation Strap wrench (HATZ order no.: 620 307 01) Gasket Procedure — Changing the fuel filter Step Activity Slide on the strap wrench (1) and unscrew the fuel filter counter- clockwise.

  • Page 76: Renewing The Poly V Belt And Checking The Function Of The Switch-Off Unit

    Maintenance 3-4L43C, 3-4M43, 3-4M43Z 8.2.15 Renewing the poly v belt and checking the function of the switch-off unit Safety note NOTICE When changing the belt: ▪ Always check the function of the switch-off unit. The switch- off pin must emerge by spring force, or else the machine will not switch off automatically if the belt tears.
  • Page 77 ▪ The switch-off pin (3) must emerge by spring force, or else the machine will not switch off automatically if the belt tears. If there is no reaction, please contact the nearest HATZ service station. HATZ Operator’s Manual...
  • Page 78 Maintenance 3-4L43C, 3-4M43, 3-4M43Z Overview — Mounting the poly v belt Pos. Designation Switch-off pin Tension pulley Housing Procedure — Mounting the poly v belt Step Activity Slide in the switch-off pin (1). Slide the piston with the tension pulley (2) into the housing (3) and lock it using the cylinder screw.

  • Page 79: Replacing The Diesel Particulate Filter

    3-4L43C, 3-4M43, 3-4M43Z Maintenance Pos. Designation Square opening Procedure — Centering the pulley Step Activity Lightly secure the pulley with a cylinder screw (1) without plac- ing the pulley fully on the centering. Insert the ratchet or T-piece 1/2" with the required extension into the square opening (2).
  • Page 80 35). ▪ The conditioning of the diesel particulate filter must be car- ried out by a specialized company. In order to ensure shut- down periods as short as possible, the "Hatz EasyClean" exchange program is recommended. Overview Pos.

  • Page 81: Check The Fuel Evaporator (Vaporizer) And Clean If Necessary

    3-4L43C, 3-4M43, 3-4M43Z Maintenance Procedure Step Activity Undo the cap nut (3) of the differential pressure line. Carefully pull off the differential pressure line, take care with the sealing dome (9). Loosen the V-band clamp (5) of the discharge funnel, remove the discharge funnel (4) from the diesel particulate filter.
  • Page 82 Maintenance 3-4L43C, 3-4M43, 3-4M43Z CAUTION Danger of injury. When working with compressed air, foreign bodies may fly into your eyes. ▪ Wear safety goggles. ▪ Never direct the compressed air jet toward people or toward yourself. CAUTION Damage to the coiled filament from wire brush.
  • Page 83 3-4L43C, 3-4M43, 3-4M43Z Maintenance Pos. Designation Copper ring Procedure — Removing the fuel evaporator Step Activity Disconnect the electrical connection cable (1) by loosening the connector fasteners. Loosen the fuel hose clamp (5) and pull off the fuel hose. Loosen the evaporator unit mounting bolts (2).
  • Page 84 Maintenance 3-4L43C, 3-4M43, 3-4M43Z Procedure — Checking the fuel evaporator (vaporizer) Step Activity Check the coiled filament for soot deposits and clean if neces- sary (see section "Cleaning the fuel evaporator (vaporizer)"). Visually check the coiled filament for damage. If damage is vis- ible, replace the coiled filament.

  • Page 85: Checking The Exhaust Gas Back Pressure Sensor

    3-4L43C, 3-4M43, 3-4M43Z Maintenance 8.2.18 Checking the exhaust gas back pressure sensor Safety notes CAUTION Danger of burns. There is a danger of burns when working on a hot engine. ▪ Let the engine cool. ▪ Wear safety gloves. CAUTION Damage to the exhaust gas back pressure sensor by clean- ing.

  • Page 86: Resetting The Maintenance Interval Indicator

    8.2.19 Resetting the maintenance interval indicator After completion of maintenance work reset the maintenance interval indica- tor. The counter starts again at zero and indicates when the next service is due. Overview — HATZ instrument boxes Starting key Pushbutton Ignition lock...
  • Page 87 Release the button (2) after a wait time of at least 5 seconds but no longer than 10 seconds. The maintenance interval indicator is now reset. NOTICE If a HATZ instrument box is not used: Comply with the instructions in the documentation for the com- plete machine. HATZ...

  • Page 88: Faults

    General troubleshooting notes If the cases listed below have been worked through but the fault continues to persist, please contact your nearest Hatz service station. The engine does not start or does not start immediately, but it can be turned with the starter.
  • Page 89 3-4L43C, 3-4M43, 3-4M43Z Faults For low temperatures (engine does not start) Possible causes Remedy Chapter Faulty pre glow sys- Contact Hatz service. tem. Fuel gelled due to in- Check whether the fuel that 4.4 Fuel, page 25 sufficient cold resis- emerges from the fuel feed line 8.2.9 Changing...
  • Page 90 Faults 3-4L43C, 3-4M43, 3-4M43Z The engine starts, but does not continue running after the starter is switched off. Possible causes Remedy Chapter Machine is not uncou- If possible, separate the engine pled. from the machine by uncou- pling it. Fuel prefilter is Change the fuel prefilter.
  • Page 91 3-4L43C, 3-4M43, 3-4M43Z Faults With automatic electrical switch-off mechanism (option) Possible causes Remedy Chapter Stop signal of monitoring elements for: ▪ Oil pressure too low. Check the oil level. 7.8 Checking the oil level and adding oil if nec- essary, page 43 ▪...

  • Page 92: Flash Code Table For Engine Faults

    35). The table below shows possible flashing signals, their mean- ing, as well as measures for remedies. If the listed fault cases have been worked through but the fault continues to persist, please contact your nearest HATZ service. Operator’s Manual HATZ...
  • Page 93 3-4L43C, 3-4M43, 3-4M43Z Faults Flash signal Possible causes Remedy Chapter Flashing – Break 1 – 1 Engine oil level too Check the oil level. 7.8 Check- Area affected: low. ing the oil Engine oil pres- level and sure adding oil if...

  • Page 94: Flash Code Table For Faults On The Exhaust Emission After-Treatment System

    The table below shows possible flashing sig- nals, their meaning, as well as action for remedies. If the listed fault cases have been worked through but the fault continues to persist, please contact your nearest HATZ service. Flash signal Possible causes...
  • Page 95 3-4L43C, 3-4M43, 3-4M43Z Faults Flash signal Possible causes Remedy Chapter Flashing – Break 5 – 1 Cabling loose or Check the cabling. Area affected: faulty. Fuel pump to the Faulty fuel pump. Contact Hatz ser- fuel evaporator vice. 6 – 1 Cabling loose or Check the cabling.
  • Page 96 Faults 3-4L43C, 3-4M43, 3-4M43Z Flash signal Possible causes Remedy Chapter Flashing – Break 10 – 1 Power supply to Possible faults on: Area affected: the unit outside the ▪ Cabling Control unit for permissible range. ▪ Battery diesel particulate filter (DPF) ▪...
  • Page 97 3-4L43C, 3-4M43, 3-4M43Z Faults Flash signal Possible causes Remedy Chapter Flashing – Break 1 long – 1 Diesel particulate filter is strongly loaded with soot Area affected: particles. Regeneration of ▪ Regeneration Activate the regen- 7.4 Starting the diesel particu-...

  • Page 98: Flash Code Table For Maintenance Intervals

    Faults 3-4L43C, 3-4M43, 3-4M43Z Flash code table for maintenance intervals When a maintenance interval is reached, the maintenance interval indicator flashes on the instrument box (see Explanation of symbols, chapter 7.4 Starting the engine, page 35). The table below shows possible flashing signals and their meaning. The cor- responding maintenance activities are described in chapter 8.2.2 Mainte-...

  • Page 99: Storage And Disposal

    3-4L43C, 3-4M43, 3-4M43Z Storage and disposal Storage and disposal 10.1 Storing the machine Safety notes DANGER Danger to life from inhaling exhaust gases. Toxic engine exhaust gases can lead to loss of consciousness and even death in closed-off and poorly ventilated rooms.
  • Page 100 Storage and disposal 3-4L43C, 3-4M43, 3-4M43Z Storing the machine for a lengthy period Take the following measures if you intend to take the machine out of service for a lengthy period (3-12 months): Step Activity Drain the fuel tank until it is nearly empty and fill with FAME*- free fuel.

  • Page 101: Disposing Of The Machine

    3-4L43C, 3-4M43, 3-4M43Z Storage and disposal Recommissioning Step Activity Remove all covers. Check the cables, hoses and lines for cracks and leak tightness. Check the engine oil level. Install the battery in accordance with the Operators Manual for the machine.

  • Page 102: Installation Declaration

    Installation declaration 3-4L43C, 3-4M43, 3-4M43Z Installation declaration Operator’s Manual HATZ...
  • Page 104 Motorenfabrik Hatz GmbH & Co. KG Ernst-Hatz-Str. 16 94099 Ruhstorf a. d. Rott Deutschland Tel. +49 8531 319-0 Fax. +49 8531 319-418 marketing@hatz-diesel.de www.hatz-diesel.com 0000 436 003 02 - 01.2016 - 0.1 Printed in Germany CREATING POWER SOLUTIONS.

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