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

Hatz Diesel 3-4L43C Operator's Manual

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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
CREATING POWER SOLUTIONS.
0 0 0 0 0 0 0 0 4 4 3 3 6 6 0 0 0 0 3 3 0 0 0 0 - - 0 0 5 5 . . 2 2 0 0 1 1 4 4 - - 0 0 . . 1 1
Printed in Germany
EN
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 Diesel 3-4L43C

  • Page 1 Tel. +49 8531 319-0 Fax +49 8531 319-418 marketing@hatz-diesel.de www.hatz-diesel.com 3-4L43C | 3-4M43 | 3-4M43Z OPERATOR’S MANUAL Diesel engine Hatz Diesel 0 0 0 0 0 0 0 0 4 4 3 3 6 6 0 0 0 0 3 3 0 0 0 0 - - 0 0 5 5 . . 2 2 0 0 1 1 4 4 - - 0 0 . . 1 1 Printed in Germany CREATING POWER SOLUTIONS.

  • Page 2: Table Of Contents

    3-4L43C, 3-4M43, 3-4M43Z Table of contents Table of contents Notices ......................General information ..................Safety ....................... General information ..................3.1.1 Intended use and foreseeable misuse .............. 3.1.2 Machine user or machine manufacturer obligations ......... 3.1.3 Representation of safety notes .................
  • Page 3 Table of contents 3-4L43C, 3-4M43, 3-4M43Z 8.2.2 Maintenance plan ....................48 8.2.3 Checking the intake area of the combustion air ..........50 8.2.4 Checking the cooling air area ................51 8.2.5 Changing the engine oil ..................52 8.2.6 Cleaning the cooling fan, cooling fins and oil cooler ......... 54 8.2.7...

  • Page 4: Notices

    3-4L43C, 3-4M43, 3-4M43Z Notices Notices Contact data © 2014 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 5: General Information

    General information 3-4L43C, 3-4M43, 3-4M43Z General information Information on the document This Operator's Manual was created with due care. It is exclusively intended to offer a technical description of the machine and to provide instructions on commissioning, operating and maintaining the machine. When operating the machine, the applicable standards and legal regulations as well as any in- house regulations apply.

  • Page 6: Safety

    3-4L43C, 3-4M43, 3-4M43Z Safety Safety General information Introduction This chapter contains the information you need to work safely with this ma- chine. To prevent accidents and damage to the machine, it is imperative that these safety instructions be followed. Read this chapter carefully before beginning work.

  • Page 7: 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 8: Representation Of Safety Notes

    3-4L43C, 3-4M43, 3-4M43Z Safety 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 9: Meaning Of Safety Symbols

    Safety 3-4L43C, 3-4M43, 3-4M43Z Danger symbol/ Meaning signal word This signal word, without a danger symbol, is CAUTION used to indicate the risk of property damage. This signal word indicates additional useful infor- NOTICE mation, such as operating tips and cross referen- ces.

  • Page 10: Safety Notes

    3-4L43C, 3-4M43, 3-4M43Z Safety Symbol Meaning 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. Safety notes 3.2.1 Operational safety...
  • Page 11 Safety 3-4L43C, 3-4M43, 3-4M43Z Using the machine ▪ Only operate the machine for the purposes described in the chapter 3.1.1 Intended use and foreseeable misuse, page 7. Compliance with other regulations ▪ Adhere to the applicable accident prevention regulations of the trade asso- ciations.
  • Page 12 3-4L43C, 3-4M43, 3-4M43Z Safety Warning and notice labels on the machine The warning and notice labels on the machine must be followed (see the chapter 3.3 Labels, page 19). The warning and notice labels must be kept legible and must be replaced if necessary.

  • Page 13: 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 14 3-4L43C, 3-4M43, 3-4M43Z Safety Faults ▪ Immediately eliminate faults that compromise safety. ▪ Switch off the machine and do not take into service again until all faults have been eliminated. Safety instructions for operation DANGER Danger to life from inhaling exhaust gases.

  • Page 15: Machine-Specific Safety Instructions For Maintenance Work

    Safety 3-4L43C, 3-4M43, 3-4M43Z 3.2.3 Machine-specific safety instructions for maintenance work Introduction The machine can pose residual risks during maintenance. To eliminate these risks, all persons working on the machine must follow the general and machine-specific safety instructions. Maintenance intervals ▪...
  • Page 16 3-4L43C, 3-4M43, 3-4M43Z Safety WARNING Danger of injury from compressed air and dust particles. Eye injuries may occur when cleaning with compressed air. ▪ Wear safety goggles. CAUTION Danger of injury if the maintenance instructions are not fol- lowed. ▪...

  • Page 17: Electrical Equipment

    Safety 3-4L43C, 3-4M43, 3-4M43Z 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. ▪ Do not place tools on the battery. ▪ Before performing work on the electrical equipment, always disconnect the negative terminal of the battery.

  • Page 18: Labels

    3-4L43C, 3-4M43, 3-4M43Z Safety NOTICE ▪ The necessary wiring diagrams are included with the ma- chine if it is equipped with electrical equipment. Additional wiring diagrams can be requested when needed. ▪ We cannot be held liable for electrical equipment that is not designed according to HATZ wiring diagrams.

  • Page 19: Technical Data

    Technical data 3-4L43C, 3-4M43, 3-4M43Z 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 20: Engine Type Plate

    3-4L43C, 3-4M43, 3-4M43Z Technical data Engine oil capacities and dipstick equipment Type oil sump Engine oil capacity Code letter on the liter dipstick 3L43C With 10.5 Without 3M43 With 11.0 Without 3M43Z With 10.5 Without 4L43C With 13.0 4M43 With 14.0...

  • Page 21: Fuel

    Technical data 3-4L43C, 3-4M43, 3-4M43Z 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 22 3-4L43C, 3-4M43, 3-4M43Z Technical data ▪ ACEA E6 (preferred, as "Low SAPS") ▪ ACEA E9 ▪ ACEA C3 / C4 (HTHS ≥ 3.5 mPas) ▪ API CJ-4 Oil viscosity OIL: SAE... °F °C Select the recommended viscosity depending on the ambient temperature in which the engine will be operated.

  • Page 23: Engine Design

    Engine design 3-4L43C, 3-4M43, 3-4M43Z Engine design Engine 3-4L43C (sealed version - Silent Pack) Pos. Designation Capsule intake shaft Intake opening for combustion air and cooling air HATZ Operator's Manual...
  • Page 24 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 25 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 Air filter housing cover HATZ Operator's Manual...
  • Page 26 3-4L43C, 3-4M43, 3-4M43Z Engine design Pos. Designation 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 fixation Manual fuel pump Fuel feed line with fuel prefilter...

  • Page 27: Transport, Assembly And Commissioning

    Transport, assembly and commissioning 3-4L43C, 3-4M43, 3-4M43Z Transport, assembly and commissioning Transport Safety notes WARNING Danger of injury from improper lifting and transport. Danger of crushing from falling or tipping of the engine. ▪ Only use the lifting eye already mounted on the machine for lifting.

  • Page 28: Installation Notes

    Transport, assembly and commissioning Installation notes Assembly notes HATZ diesel engines are efficient, robust and long-lived. Therefore, they are usually installed in machines that are used for commercial purposes. The machine manufacturer must follow the applicable regulations regarding machine safety – the engine is a part of a machine.
  • Page 29 Transport, assembly and commissioning 3-4L43C, 3-4M43, 3-4M43Z 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. ▪ Never operate the machine in closed-off or poorly ventilated rooms.

  • Page 30: 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 the chapter 3 Safety, page 7. WARNING Danger of injury from damage and defects on the machine.

  • Page 31: Start Preparation

    Operation and use 3-4L43C, 3-4M43, 3-4M43Z Step Test There is a sufficient amount of engine oil in the engine housing (see the chapter 4.4 Engine oil, page 23). No persons are located in the danger zone of the engine or ma- chine.

  • Page 32: 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 33 Operation and use 3-4L43C, 3-4M43, 3-4M43Z Overview — HATZ instrument boxes Pos. Designation "Suppress DPF regeneration" switch "Increase load" indicator "DPF regeneration active" indicator "Suppress DPF regeneration active" indicator Protective cap Starting key Pre glow display (option) Combined indicator for air filter maintenance and other engine...
  • Page 34 3-4L43C, 3-4M43, 3-4M43Z Operation and use Procedure NOTICE ▪ Start for max. 30 seconds. If the engine is still not running after that, turn the starting key back to position "0" and elimi- nate the cause (see the chapter 9.1 Troubleshooting, page 81).

  • Page 35: Switching Off The Engine

    Operation and use 3-4L43C, 3-4M43, 3-4M43Z Electrical automatic shutoff (additional equipment) The identifying feature of the electrical automatic shutoff is brief flashing of all indicators after the starting key is turned to position "I". NOTICE ▪ If the engine stops again immediately after starting, or stops...
  • Page 36 3-4L43C, 3-4M43, 3-4M43Z Operation and use Overview — HATZ instrument boxes Pos. Designation Starting key Protective cap Ignition lock Operation Procedure NOTICE Danger of exhaustive battery discharge. ▪ When the machine is switched off, always turn the starting key to position "0" or else this may cause the exhaustive discharge of the battery.

  • Page 37: Refueling

    Operation and use 3-4L43C, 3-4M43, 3-4M43Z Automatic electrical switch-off with fault storage This is identified by brief flashing of all indicators after the starting key is turned to position "I". NOTICE If the engine stops again immediately after starting, or stops in- dependently during operation, this is an indication that a moni- toring element of the automatic shutoff has been activated.

  • Page 38: Checking The Water Separator

    3-4L43C, 3-4M43, 3-4M43Z Operation and use CAUTION Danger of environmental damage from spilled fuel. Do not overfill the fuel tank and do not spill fuel. ▪ Collect emerging fuel and dispose of it in an environmentally compatible manner. CAUTION Engine damage from using low quality fuel.
  • Page 39 Operation and use 3-4L43C, 3-4M43, 3-4M43Z Pos. Designation Drain plug Bleed screw 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 40: Checking The Oil Level And Adding Oil If Necessary

    3-4L43C, 3-4M43, 3-4M43Z Operation and use Checking the oil level and adding oil if necessary Safety notes CAUTION Danger of burns. There is a danger of burns when working on a hot engine. ▪ Wear safety gloves. CAUTION Danger of later engine damage.

  • Page 41: Regenerating The Diesel Particulate Filter

    Operation and use 3-4L43C, 3-4M43, 3-4M43Z Procedure — Checking oil level/adding oil Step Activity Switch off the engine and wait several minutes for the engine oil to collect in the crank housing. The machine must be horizontal. Remove contamination on the engine in the area of the dipstick (1).
  • Page 42 3-4L43C, 3-4M43, 3-4M43Z Operation and use CAUTION Danger of damaging the diesel particulate filter. If the regeneration of the diesel particulate filter is suppressed over a longer period, a large amount of particles collects in the filter. This can damage or destroy the diesel particulate filter.
  • Page 43 Operation and use 3-4L43C, 3-4M43, 3-4M43Z Step Activity If the "Increase load" indicator (2) lights up, increase the engine load. NOTE: The way the engine load is increased depends on the re- spective use of the engine. Do not reduce the engine load during the regeneration process.

  • Page 44: Maintenance

    3-4L43C, 3-4M43, 3-4M43Z Maintenance Maintenance General maintenance instructions Safety notes WARNING Danger of injury from the failure to follow the operating in- structions and from performing unauthorized tasks on the machine. ▪ Follow all instructions. ▪ Do not perform activities for which no qualification is availa- ble.

  • Page 45: Maintenance Work

    Maintenance 3-4L43C, 3-4M43, 3-4M43Z ▪ Before starting, ensure that no persons are located in the danger zone of the engine or machine. Performance of maintenance work The entire machine is designed to be maintenance friendly. Parts that re- quire maintenance are easily accessible.
  • Page 46 3-4L43C, 3-4M43, 3-4M43Z Maintenance 3-4M43, 3-4M43Z 0000 042 956 01 3-4L43C 0,1 mm 0.004" .L43 = 1h 250h 500h 0000 042 930 01 HATZ Operator's Manual...

  • Page 47: Maintenance Plan

    Maintenance 3-4L43C, 3-4M43, 3-4M43Z 8.2.2 Maintenance plan The degree of contamination of the fuel, the care with which refueling is per- formed and the soiling on the inside of the fuel tank are decisive in determin- ing the change interval of the fuel prefilter and the fuel filter.
  • Page 48 3-4L43C, 3-4M43, 3-4M43Z Maintenance Symbol Maintenance in- Maintenance activity/check Chapter terval Maintain the dry air filter. 8.2.9 Maintaining the dry air filter, Change the filter cartridge. page 60 Check and set the tappet 8.2.11 Checking clearance. and setting the tappet clearance,...

  • Page 49: Checking The Intake Area Of The Combustion Air

    Maintenance 3-4L43C, 3-4M43, 3-4M43Z 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 50: Checking The Cooling Air Area

    3-4L43C, 3-4M43, 3-4M43Z Maintenance 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 51: Changing The Engine Oil

    Maintenance 3-4L43C, 3-4M43, 3-4M43Z 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 the chapter Cleaning the cooling fan, cooling fins and oil cooler).
  • Page 52 3-4L43C, 3-4M43, 3-4M43Z Maintenance 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 53: Cleaning The Cooling Fan, Cooling Fins And Oil Cooler

    Maintenance 3-4L43C, 3-4M43, 3-4M43Z 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 41). 8.2.6 Cleaning the cooling fan, cooling fins and oil cooler...
  • Page 54 3-4L43C, 3-4M43, 3-4M43Z Maintenance CAUTION Danger of damage to the machine from incorrect engine cleaning. ▪ Do not spray components of the electrical equipment with a water jet or high pressure jet during cleaning. ▪ Do not use gasoline or acid-based cleaning agents.
  • Page 55 Maintenance 3-4L43C, 3-4M43, 3-4M43Z Preparation — Cleaning Step Activity Unscrew the following on encapsulated engines: ▪ Hood ▪ Side wall ▪ Cover plate on operating side ▪ Exhaust air duct ▪ Cover plate on exhaust side (see chapter 5 Engine design, page 24).

  • Page 56: Checking The Screw Connections

    3-4L43C, 3-4M43, 3-4M43Z Maintenance Step Activity On encapsulated engines, also clean the area between the floor plate and crankcase. Mount the capsule and air guide parts again. Cleaning of wet or oily dirt contamination Disconnect the negative terminal of the battery.

  • Page 57: Changing The Fuel Prefilter

    Maintenance 3-4L43C, 3-4M43, 3-4M43Z 8.2.8 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 58 3-4L43C, 3-4M43, 3-4M43Z Maintenance 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 59: 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 60 3-4L43C, 3-4M43, 3-4M43Z Maintenance 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 61: Checking And Cleaning The Air Filter Cartridge

    Maintenance 3-4L43C, 3-4M43, 3-4M43Z 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 62 3-4L43C, 3-4M43, 3-4M43Z Maintenance Overview — Checking/cleaning the air filter cartridge Pos. Designation Sealing surface Procedure — Checking/cleaning the air filter cartridge 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 63: Checking And Setting The Tappet Clearance

    Maintenance 3-4L43C, 3-4M43, 3-4M43Z 8.2.11 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 64 3-4L43C, 3-4M43, 3-4M43Z Maintenance Step Activity Remove the air guide housing cover (see the chapter 5 Engine design, page 24) or the belt guard. 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.
  • Page 65 Maintenance 3-4L43C, 3-4M43, 3-4M43Z 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 20.

  • Page 66: Changing The Oil Filter

    3-4L43C, 3-4M43, 3-4M43Z Maintenance Step Activity After a brief trial run, check the cylinder head cover for tight- ness. 8.2.12 Changing the oil filter Safety notes CAUTION Danger of burns. When working on the engine there is a danger of burns from hot oil.

  • Page 67: Changing The Fuel Filter

    Maintenance 3-4L43C, 3-4M43, 3-4M43Z Step Activity Add engine oil to the max. mark on the dipstick. ▪ For the specifications and viscosity, see the chapter 4.4 En- gine oil, page 23. ▪ The mark on the dipstick indicates whether the engine is equipped with an oil sump or not (see the chapter 4.1 Engine...
  • Page 68 3-4L43C, 3-4M43, 3-4M43Z Maintenance CAUTION Danger of environmental damage from spilled fuel. When the filter is removed, a small amount of fuel is drained as well. ▪ Collect emerging fuel and dispose of it in an environmentally compatible manner. CAUTION Dirt particles can damage the injection system.
  • Page 69 Maintenance 3-4L43C, 3-4M43, 3-4M43Z 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 70: Renewing The Poly V Belt And Checking The Function Of The Switch-Off Unit

    3-4L43C, 3-4M43, 3-4M43Z Maintenance 8.2.14 Renewing the poly v belt and checking the function of the switch- off unit 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 71 Maintenance 3-4L43C, 3-4M43, 3-4M43Z Overview — Checking the function of the switch-off unit of the belt monitor- ing system Pos. Designation Tension pulley Angle lever Switch-off pin Procedure — Checking the function of the switch-off unit of the belt monitor-...
  • Page 72 3-4L43C, 3-4M43, 3-4M43Z Maintenance 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 73: Replacing The Diesel Particulate Filter

    Maintenance 3-4L43C, 3-4M43, 3-4M43Z Pos. Designation Cylinder screw 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 a large screwdriver between the hydraulic belt tensioner and pulley and push down until it slides fully into the centering.
  • Page 74 3-4L43C, 3-4M43, 3-4M43Z Maintenance NOTICE ▪ The diesel particulate filter must be conditioned/replaced when the combined indicator on the instrument box flashes 1 time (=warning message) or 2 times (=fault message) (long flashing pulse approx. 2 seconds). ▪ The conditioning of the diesel particulate filter must be car- ried out by a specialized company.

  • Page 75: Cleaning The Fuel Evaporator

    Maintenance 3-4L43C, 3-4M43, 3-4M43Z 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 76 3-4L43C, 3-4M43, 3-4M43Z Maintenance 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 77 Maintenance 3-4L43C, 3-4M43, 3-4M43Z Pos. Designation Evaporator housing 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.

  • Page 78: Checking The Exhaust Gas Pressure Sensor

    3-4L43C, 3-4M43, 3-4M43Z Maintenance Procedure — Cleaning the fuel evaporator Step Activity Brush off soot deposits from the coiled filament (2) with a cop- per or brass wire brush (1). Visually check the coiled filament for damage. If damage is visible, replace the coiled filament.
  • Page 79 Maintenance 3-4L43C, 3-4M43, 3-4M43Z Overview Pos. Designation Signal line with connector Exhaust gas pressure sensor Line connection Procedure Step Activity Disconnect the signal line (1) from the exhaust gas pressure sensor (2) by loosening the connector fastener. Unscrew the line connection (3) and remove the exhaust gas pressure sensor.

  • Page 80: Faults

    3-4L43C, 3-4M43, 3-4M43Z Faults Faults Troubleshooting Troubleshooting notes If the cases listed below have been worked through but the fault continues to persist, please contact your nearest HATZ service station. Type of fault Possible causes Remedy Chapter The engine does No fuel at the injec- Refuel.
  • Page 81 Faults 3-4L43C, 3-4M43, 3-4M43Z Type of fault Possible causes Remedy Chapter Torn cooling fan Renew the poly v 8.2.14 Re- belt. belt. newing the poly v belt and check- ing the func- tion of the switch-off unit, page 71 At low tempera-...
  • Page 82 3-4L43C, 3-4M43, 3-4M43Z Faults Type of fault Possible causes Remedy Chapter The starter does Irregularities in the Check the electri- 3.2.4 Elec- not switch on and electrical equip- cal equipment and trical equip- the engine does ment: their components. ment, not turn.
  • Page 83 Faults 3-4L43C, 3-4M43, 3-4M43Z Type of fault Possible causes Remedy Chapter Stop signal from ▪ Check the oil lev- 7.8 Check- monitoring ele- ing the oil ments that are as- level and ▪ Check the de- sociated with the adding oil if...
  • Page 84 3-4L43C, 3-4M43, 3-4M43Z Faults Type of fault Possible causes Remedy Chapter With automatic Stop signal of mon- Check the engine 7.8 Check- electrical switch-off itoring elements for: ing the oil mechanism for: level and ▪ Engine oil filling adding oil if (additional equip- ▪...
  • Page 85 Faults 3-4L43C, 3-4M43, 3-4M43Z Type of fault Possible causes Remedy Chapter Tappet clearance Adjust the tappet 8.2.11 not OK. clearance. Checking and setting the tappet clearance, page 64 Injection nozzle is Contact Hatz Serv- not functional. ice. Diesel particulate Replace the diesel 8.2.15 Re-...
  • Page 86 3-4L43C, 3-4M43, 3-4M43Z Faults Type of fault Possible causes Remedy Chapter Combined indicator The diesel particu- Have the diesel 8.2.15 Re- on the instrument late filter is blocked particulate filter ex- placing the box flashes 1 time and must be condi-...

  • Page 87: Storage And Disposal

    Storage and disposal 3-4L43C, 3-4M43, 3-4M43Z Storage and disposal 10.1 Storing the machine General information NOTICE Comply with the safety chapter! Follow the basic safety instructions in the chapter 3 Safety, page 7. Storing the machine for a lengthy period...

  • Page 88: Installation Declaration

    3-4L43C, 3-4M43, 3-4M43Z Installation declaration Installation declaration HATZ Operator's Manual...

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