Hatz Diesel 4H50TIC Operator's Manual
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Hatz Diesel 4H50TIC Operator's Manual

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INCLUDES SUPPLEMENTAL INFORMATION TO
THE OWNER'S MANUAL FOR MODEL YEAR 2017
FOR EPA AND CALIFORNIA CERTIFIED NON-
ROAD COMPRESSION IGNITION ENGINES.
CREATING POWER SOLUTIONS.
4H50TIC
OPERATOR'S MANUAL
Diesel engine
Hatz Diesel
www.HATZ-DIESEL.com

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April 3, 2025

Hello, May I get below items from your store? Dipstick 3H50, 4H50 pcs 3 Oil Dipstick 01178319 Deutz F4L 914 pcs 3

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Summary of Contents for Hatz Diesel 4H50TIC

  • Page 1 CREATING POWER SOLUTIONS. INCLUDES SUPPLEMENTAL INFORMATION TO 4H50TIC THE OWNER’S MANUAL FOR MODEL YEAR 2017 FOR EPA AND CALIFORNIA CERTIFIED NON- OPERATOR’S MANUAL ROAD COMPRESSION IGNITION ENGINES. Diesel engine Hatz Diesel www.HATZ-DIESEL.com...

  • Page 3: Table Of Contents

    4H50TIC 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 ....................  9 3.1.4...
  • Page 4 Table of contents 4H50TIC Maintenance work...................... 66 8.2.1 Maintenance plan ...................... 67 8.2.2 Additional work on the Silent Pack .................. 69 8.2.3 Checking the intake area of the combustion air.............. 73 8.2.4 Checking the radiator fins for dirt accumulation.............. 75 8.2.5...

  • Page 5: Notices

    4H50TIC Notices Notices Contact data © 2017 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 manual rests entirely with Motorenfabrik HATZ, Ruh- storf.

  • Page 6: General Information

    Machine This manual describes the following machine. Machine name HATZ diesel engine Type number 4H50TIC Customer service Have service work performed by qualified technicians only. We recommend that you work with one of the over 500 HATZ service stations.

  • Page 7: Safety

    4H50TIC 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 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

    4H50TIC Safety Storing this manual This 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 accessi- ble to personnel at all times. 3.1.3 Representation of safety notes...

  • Page 10: Meaning Of Safety Symbols

    Safety 4H50TIC 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 4H50TIC 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 this manual or additional documentation from other manufacturers or the carrier. Additional information that is useful to the reader.

  • Page 12: Safety Notes

    Safety 4H50TIC 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 4H50TIC Safety Personal protective Pictogram Function equipment Safety shoes Safety shoes offer protection against: ▪ Slipping ▪ Falling objects Hearing protection Hearing protection offers protec- tion against ear injuries due to excessive and constant noise. Safety gloves Safety gloves protect the hands against injury, e.g.
  • Page 14 Safety 4H50TIC General safety instructions DANGER Danger to life and danger of injury due to failure to follow the warnings on the machine and in this manual. ▪ Heed the warnings on the machine and in this manual. WARNING Danger of injury and danger of incorrect operation due to inadequate personnel qualifications.

  • 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

    Safety 4H50TIC DANGER Fire hazard from fuel. Leaked or spilled fuel can ignite on hot engine parts and cause serious burn injuries. ▪ Only refuel when the engine is switched off. ▪ Never refuel in the vicinity of open flames or sparks that can cause ignition.
  • Page 17 4H50TIC Safety Safety instructions for maintenance work DANGER Danger of explosion from flammable cleaning agents. Cleaning with benzene is an explosion hazard. It is highly flammable, can become electrostatically charged, and can gen- erate an explosive gas/air mixture. ▪ Use halogen-free, cold cleaners with a high flashpoint for cleaning.

  • Page 18: Electrical Equipment

    Safety 4H50TIC 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 or other metal objects on the battery. ▪ Before performing work on the electrical equipment, always disconnect the negative battery terminal.

  • Page 19: Labels

    4H50TIC 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 20 Safety 4H50TIC Warning labels and information signs on the battery (option) Label Meaning 1. Fire, sparks, open flames and smoking are prohibited: avoid causing sparks when working with cables and electrical machines. Avoid short-circuits. 2. Follow the instructions on the bat- tery and in the battery user man- ual.

  • Page 21: Technical Data

    4H50TIC Technical data Technical data Engine information and filling quantities Type 4H50 Type Liquid-cooled four stroke diesel engine Combustion system Direct injection Number of cylinders Bore/stroke 84 / 88 Displacement Liter 1,952 Engine oil capacity Approx. Difference between the "max." and "min."...

  • Page 22: Engine Type Plate

    Screws for the breather cap of the crankcase ventilation Engine type plate EMISSION CONTROL INFORMATION MOTORENFABRIK HATZ GMBH KG ¬ D-94099 RUHSTORF www.hatz-diesel.com Model: 4H50TIC – 162J S/N: 1361014000001 Build: 03/2014 Power: 36.4kW @ 1800 RPM Constant Displ: 1.95L Eng.Fam: FHZXL1.95C50 Emission Control System: DDI, DOC, EGR, ECM, TC, CAC Power Category: 19≤kW<37...

  • Page 23: Engine Oil

    4H50TIC Technical data The engine type plate is located on the crankcase and contains the following engine information: Model designation of the engine Engine serial number Serial rating (kW) at nominal speed (rpm) Displacement (liters) Information for US emission certification (EPA/CARB)

  • Page 24: Coolant

    Technical data 4H50TIC Oil viscosity Select the recommended viscosity depending on the ambient temperature in which the engine will be operated. CAUTION Engine damage from unsuitable engine oil. Unsuitable engine oil considerably reduces engine service life. Only use engine oil that fulfills the specifications stipulated above.
  • Page 25 H50-Coolant 5 liters 0000 055 413 00 The H50-Coolant coolant concentrate is exactly matched to the require- ments of your HATZ diesel engine. Alternative radiator protection fluids If H50-Coolant is not available, other radiator protection fluids are approved by HATZ:...
  • Page 26 Technical data 4H50TIC Manufacturer Product name LLC C521, LLC L415 CEPSA XTAR SUPER COOLANT Si-OAT CHEMIA- Glidex Extra Premium BOMAR Chevron Caltex Delo XLC Antifreeze/Coolant – Concentrate, Chevron Delo XLC Antifreeze/Coolant – Concentrate, Havoline XLC Concentrate, Ursa ELC NF Concentrate, Texaco Havoline Xtended Life Coolant –...
  • Page 27 4H50TIC Technical data Manufacturer Product name Müller Miner- Startol Top G 12 Plus, EVO ST40 alöle Neste Markki- Neste Superjäähdytinneste XLC, Neste Coolant Longlife nointi OJSC Techno- Cool Stream Premium form Old World In- Final Charge Global Coolant dustries Orvema Protex®...

  • Page 28: Fuel

    Technical data 4H50TIC ▪ If the radiator protection fluid has to be mixed with water, use only clean water that is not too hard. Drinking water with as low a content of salt, min- erals and suspended matter as possible is ideal. Demineralized or distilled water is also ideal.
  • Page 29 4H50TIC Technical data CAUTION Danger of engine damage from low quality fuel. The use of fuel that does not meet the specifications can lead to engine damage. ▪ The use of fuel that does not meet specifications requires approval by Motorenfabrik HATZ (main plant).

  • Page 30: Engine Overview

    Engine overview 4H50TIC Engine overview Designation of components Model – TIC intake side Intake opening for combustion air Lifting eyes Oil filter Main fuel filter Side oil drain screw Operator’s Manual HATZ...
  • Page 31 4H50TIC Engine overview Fuel prefilter Drain plug with integrated water level sensor Electric fuel pump Engine type plate Starter (low mounting position) Dipstick Oil filler plug, bottom Crankcase ventilation Model – TIC exhaust side Oil filler plug, top Turbocharger HATZ...
  • Page 32 Engine overview 4H50TIC Engine foot Diesel oxidation catalyst (DOC) Exhaust outlet Starter (high mounting position) Three phase alternator Oil drain screw, front Poly v belt Operator’s Manual HATZ...
  • Page 33 4H50TIC Engine overview Model – OPU intake side NOTICE The Open Power Unit (OPU) is a complete system which, in ad- dition to the engine, also includes all of the components required for cooling. Intake opening for combustion air Rain cap HATZ Operator’s Manual...
  • Page 34 Engine overview 4H50TIC Air filter (optional) Dust discharge valve Lifting eyes Engine control unit Plug holder with integrated relay, glow control unit and fuse holder Oil filter Main fuel filter Fuel prefilter Drain plug with integrated water level sensor Side oil drain screw...
  • Page 35 4H50TIC Engine overview Model – OPU exhaust side Radiator with integrated expansion tank Sealing cap for coolant Oil filler plug, top Turbocharger Diesel oxidation catalyst (DOC) Exhaust outlet Starter (high mounting position) Three phase alternator Belt guard (option) Oil drain screw, front HATZ Operator’s Manual...

  • Page 36: Hatz Instrument Box

    Engine overview 4H50TIC Encapsulated model – Silent Pack NOTICE The Silent Pack is an Open Power Unit (OPU) that is sur- rounded by a noise and weather protection capsule. The mainte- nance covers (4) and (6) can be removed for daily maintenance work.
  • Page 37 4H50TIC Engine overview Speed adjustment Engine type plate Drain plug with integrated water level sensor Fuel prefilter Components of the electronic engine control unit Pos. Designation Figure Crankshaft speed sensor HATZ Operator’s Manual...
  • Page 38 Engine overview 4H50TIC Pos. Designation Figure Air filter differential pressure sensor Rail pressure sensor Rail pressure control valve EGR valve Coolant level sensor (integrated in external expan- sion tank) Coolant level sensor (for radiator with integrated expansion tank) Coolant temperature sensor...
  • Page 39 4H50TIC Engine overview Pos. Designation Figure Charge air pressure and charge air temperature sensor Low fuel pressure and fuel temperature sensor Water level sensor Oil pressure and oil temperature sensor Metering unit on the high pressure pump HATZ Operator’s Manual...
  • Page 40 Engine overview 4H50TIC HATZ instrument box Overview Starting key Pushbutton Pre-glow indicator Operating indicator Charge control Oil pressure indicator Air filter service indicator Engine temperature indicator Maintenance interval indicator Engine fault 11 - 14 Faults in the area of the exhaust emission after-treatment sys-...
  • Page 41 4H50TIC Engine overview Explanation of symbols Symbol Meaning Pushbutton The pushbutton fulfills the following functions: ▪ Request flashing code for troubleshooting. If the "Engine fault" indicator lights or flashes, the relevant flashing code can be requested for fault diagnosis. To do so, proceed as follows: –...
  • Page 42 Engine overview 4H50TIC Symbol Meaning Air filter service indicator ▪ lights: Clean or renew the filter cartridge at the next opportu- nity. ▪ flashes + engine fault flashes: Immediately clean or replace the filter cartridge. For more information, see section 8.2.16 Servicing the air filter (optional), page 105.
  • Page 43 4H50TIC Engine overview Symbol Meaning Not activated. Not activated. Not activated. HATZ Operator’s Manual...

  • Page 44: Transport, Assembly And Commissioning

    Transport, assembly and commissioning 4H50TIC Transport, assembly and commissioning Transport Safety notes WARNING Danger of injury from improper lifting and transport. Danger of crushing from the engine falling or tipping. ▪ The machine may only be lifted using the lifting points (1).
  • Page 45 4H50TIC Transport, assembly and commissioning Access to the lifting eyes with the Silent Pack Safety note CAUTION Danger of engine damage due to foreign bodies. If the air intake hose is disconnected from the air filter, there is a danger that foreign bodies can enter the air intake hose. These are sucked in during operation and can lead to engine damage as a consequence.
  • Page 46 Transport, assembly and commissioning 4H50TIC Air intake hose Air filter Fixing screws for the top part of the capsule (18 pieces) Top part of the capsule Procedure Step Activity Unscrew the fixing screws (1). Undo the hose clamp (2) and remove the air intake hose (3) from the air filter (4).

  • Page 47: Installation Notes

    HATZ service station. For contact data, see chapter 1 Impres- sum, page 5 or www.hatz-diesel.com. Installation notes HATZ diesel engines are efficient, robust, and have a long service life. Therefore, they are usually installed in machines that are used for commer- cial purposes.

  • Page 48: Preparations For Commissioning

    Transport, assembly and commissioning 4H50TIC ▪ Parts of the exhaust gas system and the engine surface become hot dur- ing operation and may not be touched until they cool down after the en- gine is switched off. ▪ Incorrect cable connections and incorrect operation of the electrical equip- ment can lead to sparking and must be avoided.

  • Page 49: Filling Engine Oil (First Filling)

    4H50TIC Transport, assembly and commissioning Filling engine oil (first filling) Engines are normally delivered without an engine oil filling. Safety note 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.

  • Page 50: Filling The Cooling System

    Transport, assembly and commissioning 4H50TIC Procedure Step Activity Pull out the dipstick (1) and clean it. Depending on accessibility, unscrew oil filler plug (2) or (4). Fill with engine oil. For the specification and viscosity, see section 4.3 Engine oil, page 23.
  • Page 51 4H50TIC Transport, assembly and commissioning Overview External expansion tank Integrated expansion tank Expansion tank for coolant Sealing cap MAX - Maximum coolant level MIN - Minimum coolant level Procedure Step Activity Open the sealing cap (2). HATZ radiator with integrated expansion tank Top up the coolant to the edge (3) of the pipe section.

  • Page 52: Starting The Engine For The First Time Or After A Fuel Filter Replacement

    Transport, assembly and commissioning 4H50TIC Step Activity Check the coolant level again. The coolant must be seen be- tween the MIN and MAX mark; for a warm engine the level can also be slightly above the MAX mark. Check the cooling system for leaks, retighten the hose clips if necessary (see section 8.2.5 Checking the cooling system, page...
  • Page 53 4H50TIC Transport, assembly and commissioning NOTICE See also starting instructions in the documentation for the com- plete machine. Before starting Before starting the engine, several tests need to be performed to ensure the machine is working properly. Step Test The machine is standing securely and on a level surface.
  • Page 54 Transport, assembly and commissioning 4H50TIC Operating indicator Charge control Oil pressure indicator Ignition lock Operation Start NOTICE For further details on the instrument box, see section 5.2 HATZ instrument box, page 40. Procedure NOTICE ▪ Start for max. 20 seconds. If the engine is still not running after that, turn the starting key back to position "0"...
  • Page 55 4H50TIC Transport, assembly and commissioning Step Activity Starting the engine Turn the starting key to position "I" again. If the pre-glow indicator goes out, turn the starting key to posi- tion "II". As soon as the engine is running, release the starting key.

  • Page 56: Operation And Use

    Operation and use 4H50TIC 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. ▪ Do not take the machine into service if damage has been lo- calized and identified.

  • Page 57: Performing Tests

    4H50TIC Operation and use Performing tests Before starting Before starting the engine, several tests need to be performed to ensure the machine is working properly. Procedure Step Test The machine is standing securely and on a level surface. The installation location is adequately ventilated.
  • Page 58 Operation and use 4H50TIC NOTICE See also starting instructions in the documentation for the com- plete machine. Overview — HATZ instrument boxes Starting key Pre-glow indicator Operating indicator Charge control Oil pressure indicator Engine temperature indicator Ignition lock Operation Start NOTICE For further details on the instrument box, see section 5.2 HATZ...
  • Page 59 4H50TIC Operation and use Procedure NOTICE ▪ Start for max. 20 seconds. If the engine is still not running after that, turn the starting key back to position "0" and elimi- nate the cause (see section 9.1 Troubleshooting, page 111). ▪...

  • Page 60: Switching Off The Engine

    Operation and use 4H50TIC Switching off the engine Safety notes CAUTION Danger of injury from unauthorized access. There is a danger of injury if unauthorized persons handle the machine. ▪ Protect the starting key against unauthorized access during breaks in operation or after completing work.

  • Page 61: Check The Oil Level

    4H50TIC Operation and use Overview — HATZ instrument boxes Starting key Ignition lock Operation Procedure Step Activity Turn the starting key (1) to position "0". The engine switches off. All indicator lamps go out after approx. 10 seconds. Remove the starting key.
  • Page 62 Operation and use 4H50TIC 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 63: Refueling

    4H50TIC Operation and use Procedure — Checking oil level/adding oil Step Activity Switch off the engine and wait several minutes for the engine oil to collect in the crankcase. Engine must be level. Remove contamination on the engine in the area of the dipstick (1).
  • Page 64 Operation and use 4H50TIC CAUTION Engine damage from using low quality fuel. The use of fuel that does not meet the specifications can lead to engine damage. ▪ Only use the fuel specified in chapter 4.5 Fuel, page 28. ▪...

  • Page 65: Maintenance

    4H50TIC Maintenance Maintenance General maintenance instructions Safety notes WARNING Danger of injury from failure to follow the operating instruc- tions and from performing unauthorized tasks on the ma- chine. ▪ Follow all instructions. ▪ Do not perform activities for which no qualification is avail- able.

  • Page 66: Maintenance Work

    Maintenance 4H50TIC ▪ 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 67: Maintenance Plan

    4H50TIC Maintenance 8.2.1 Maintenance plan In new and generally overhauled engines, after 50 operating hours: ▪ Change the engine oil and oil filter. See chapter 8.2.6 Changing the en- gine oil and oil filter, page 79. ▪ Check the screw connections (do not retighten the screws for attaching the cylinder head).

  • Page 68: Changing The Engine Oil And Oil Filter

    Maintenance 4H50TIC Symbol Maintenance in- Maintenance activity/check Section terval Every 500 operat- Change the engine oil and oil 8.2.6 Changing 500h ing hours or every filter the engine oil and 2 years oil filter, page 79 Change the fuel prefilter 8.2.14 Changing...

  • Page 69: Additional Work On The Silent Pack

    4H50TIC Maintenance Symbol Maintenance in- Maintenance activity/check Section terval Every 4,000 oper- Clean the entire exhaust gas ating hours recirculation section (EGR pre- cooler, EGR valve, EGR main cooler as well as EGR mixing nozzle) (to be carried out by a trained...
  • Page 70 Maintenance 4H50TIC Overview Operator’s Manual HATZ...
  • Page 71 4H50TIC Maintenance Air intake hose Top part of the capsule Control side maintenance lid Top maintenance cover Side panel on exhaust gas side Access cover to the drain plug on the radiator Fixing screws for retaining plate Hose clamp Air filter...
  • Page 72 Maintenance 4H50TIC Maintenance step Component disassem- Check the oil level Check the intake area of the combustion air Check the cooling system A, B, C, E Change the engine oil and oil filter Change the main fuel filter Check or replace the poly v belts...
  • Page 73 4H50TIC Maintenance Step Activity Remove the access cover (F) to the drain plug on the radiator Unscrew the fixing screws (8). Remove the access cover (F). Assembly Mount all parts again after the maintenance steps have been completed. Do not forget:...
  • Page 74 Maintenance 4H50TIC Overview (HATZ air filter) Intake opening for combustion air Dust discharge valve Rubber lips OK Rubber lips deformed Procedure Step Activity Check the intake opening (1) for coarse contamination such as leaves, heavy dust deposits, etc., and clean if necessary.
  • Page 75 4H50TIC Maintenance Step Activity Make sure that the rubber lips (3) run parallel to each other. The gap between the rubber lips must be a maximum of 2 mm. Deformed rubber lips (4) impair the function of the precleaner, thus shortening the maintenance interval of the air filter. Re- place the dust discharge valve if required.
  • Page 76 Maintenance 4H50TIC Overview Radiator fins Procedure Step Activity Check the radiator fins (1) for coarse contamination such as leaves, heavy dust deposits, etc., and clean if necessary (see the chapter 8.2.7 Engine cleaning, page 85). 8.2.5 Checking the cooling system...
  • Page 77 4H50TIC Maintenance CAUTION Danger of burns. There is a danger of burns when working on a hot cooling sys- tem. The cooling system is pressurized when the engine is hot. ▪ Let the engine cool. ▪ Wear safety gloves. CAUTION Danger of later engine damage.
  • Page 78 Maintenance 4H50TIC Procedure for topping up coolant Step Activity Carefully open the sealing cap (2). Top up prepared coolant to the MAX mark on the expansion tank. For the preparation of the coolant, see section 4.4 Coolant, page 24. Tighten the sealing cap (2) all the way by hand.
  • Page 79 4H50TIC Maintenance 8.2.6 Changing the engine oil and oil filter This chapter contains the following sections: ▪ Changing the oil filter ▪ Draining the engine oil ▪ Filling the engine oil ▪ Concluding the inspection work Safety notes CAUTION Danger of burns.
  • Page 80 Maintenance 4H50TIC NOTICE ▪ The engine must be level. ▪ The engine must be switched off. ▪ Only drain engine oil while it is warm. Changing the oil filter Overview – Horizontal attachment Oil filter Sealing surface Gasket Procedure Step Activity Keep a container ready for collecting the used oil.
  • Page 81 4H50TIC Maintenance Overview – Vertical attachment Oil filter Collar on the oil filter Shaped element Sealing surface Gasket Guard ring Procedure Step Activity Loosen the oil filter (1) with a strap wrench or similar and un- screw it until the collar (2) of the oil filter is at the same level as the shaped element (3).
  • Page 82 Maintenance 4H50TIC Step Activity Dispose of the old filter in accordance with local environmental regulations. Thoroughly clean the shaped element (3) and sealing surface (4). Lightly oil the sealing lip (5) of the new oil filter. Screw in the oil filter and tighten it by hand.
  • Page 83 4H50TIC Maintenance Overview – Model with oil drain valve Screw plug for oil drain valve Oil drain hose Procedure Step Activity Keep a container ready for collecting the used oil. The container must be large enough to hold the entire amount of engine oil.
  • Page 84 Maintenance 4H50TIC Filling the engine oil Overview Dipstick (depending on the model) Oil filler plug, top Oil refilling container Oil filler plug, bottom Procedure Step Activity Pull out the dipstick (1) and clean it. Depending on accessibility, unscrew oil filler plug (2) or (4).
  • Page 85 4H50TIC Maintenance Step Activity Reinsert the dipstick. Pull out the dipstick and check the oil level. If required, top up the engine oil to the max. mark. Reinsert the dipstick. Screw in the oil filler plug. Concluding the inspection work...
  • Page 86 Maintenance 4H50TIC CAUTION Danger of burns. There is a danger of burns when working on a hot engine. ▪ Let the engine cool. ▪ Wear safety gloves. CAUTION Danger of injury. When working with compressed air, foreign bodies may fly into your eyes.
  • Page 87 4H50TIC Maintenance NOTICE In case of heavy contamination, shorten the maintenance inter- vals accordingly (see chapter 8.2.1 Maintenance plan, page 67). Overview Radiator fins Direction of flow of the cooling air with suction fan Direction of flow of the cooling air with forced-draught fan...
  • Page 88 Maintenance 4H50TIC 8.2.8 Checking the poly v belt Safety notes CAUTION Danger of burns. There is a danger of burns when working on a hot engine. ▪ Let the engine cool before maintenance. Preparation Step Activity Unscrew the optional belt guard (1). Unscrew the fixing screws (2) for this.
  • Page 89 4H50TIC Maintenance Check the poly v belt for damage. Overview Pulley Poly v belt Damage to 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 poly v belt (2) for the following damage: ▪...

  • Page 90: Checking And Setting The Belt Tension

    Maintenance 4H50TIC 8.2.9 Checking and setting the belt tension Model without A/C compressor The following description only applies to engines without A/C compressor. For the model with A/C compressor, a belt tensioner with spring preload al- ways ensures the correct belt tension. The checking and setting of the belt tension is omitted here.
  • Page 91 4H50TIC Maintenance Step Activity Check the poly v belt for damage (see section 8.2.8 Checking the poly v belt, page 88). Do not retension damaged belts, but replace them immediately (see section 8.2.10 Replacing the poly v belts, page 93).
  • Page 92 Maintenance 4H50TIC Belt tension Display (5) on the "Fa- Vibration frequency com" belt tension me- (frequency meter) New belt 210 Hz (+ 10 Hz) Belt after maintenance 150 Hz (+ 10 Hz) interval Minimum tension 125 Hz Procedure Step Activity Checking the belt tension Check the belt tension at the measuring point (6) in accordance with the manual of the measuring device manufacturer and com- pare with the setting values for the belt tension.

  • Page 93: Replacing The Poly V Belts

    4H50TIC Maintenance 8.2.10 Replacing the poly v belts This section contains the following subsections: ▪ Belt run ▪ Preparatory activities ▪ Engine without A/C compressor ▪ Engine with A/C compressor Safety note CAUTION Danger of burns. There is a danger of burns when working on a hot engine.
  • Page 94 Maintenance 4H50TIC Preparatory activities Overview Belt guard Fixing screws for the belt guard Protective guard (left half) Connecting screws, protective guard halves (top and bottom) Fixing screws, protective guard (top and bottom) Procedure Step Activity Unscrew the optional belt guard (1). Unscrew the fixing screws (2) for this.
  • Page 95 4H50TIC Maintenance Engine without A/C compressor Overview Alternator Upper fixing screw on the generator Lower fixing screw on the generator Poly v belt Fan blade Procedure Step Activity Undo fixing screws (2) and (3). Turn the generator (1) in the direction of the arrow to the stop.
  • Page 96 Maintenance 4H50TIC Engine with A/C compressor Safety note CAUTION Danger of injury. The belt tensioner is under spring preload. When tensioning and relieving, there is a danger of injury due to crushing or jamming on preloaded parts. ▪ Carry out the work on the belt with particular caution.

  • Page 97: Changing The Oil Separator Of The Crankcase Ventilation

    4H50TIC Maintenance Step Activity Check the pulley, belt tensioner and pulley for perfect condition. If the grooves are broken off or bent, renew the damaged pulley. Feed a new poly v belt over the fan blade in the same way from the radiator side.

  • Page 98: Checking The Screw Connections

    Maintenance 4H50TIC Procedure Step Activity Release the four mounting bolts (1) on the breather cap (2). Carefully lift the breather cap. If necessary, release the vent hose (4). Remove the used oil separator cartridge dispose of it according to local environmental regulations.

  • Page 99: Draining The Water Separator

    4H50TIC Maintenance 8.2.13 Draining the water separator Safety note 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 100: Changing The Fuel Prefilter

    Maintenance 4H50TIC Step Activity If not enough liquid escapes, undo the additional bleed screw (1). NOTE: If the fuel tank lies lower than the fuel prefilter, the fuel feed line must be clamped off with a hose clip (5). Otherwise fuel will run back into the fuel tank after the drain plug has been unscrewed.
  • Page 101 4H50TIC Maintenance 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. CAUTION Dirt particles can damage the injection system.

  • Page 102: Changing The Main Fuel Filter

    Maintenance 4H50TIC Procedure Step Activity Lock the fuel supply line on the fuel prefilter. Place a suitable container under the filter to collect emerging fuel. Disconnect the water level sensor cable (4) from the drain plug (3). Release the drain screw (3) and drain the fuel.
  • Page 103 4H50TIC Maintenance WARNING Danger of injury due to fuel splashes. Fuel can exit under pressure when the main fuel filter is re- moved. ▪ Carefully remove the main fuel filter. ▪ Wear safety goggles. CAUTION Danger of burns. There is a danger of burns when working on a hot engine.
  • Page 104 Maintenance 4H50TIC Overview Fuel feed line Hose clip Main fuel filter Strap wrench Gasket Procedure Step Activity Block the fuel feed line (1) using the hose clip (2). Place a suitable container under the filter to collect emerging fuel. Unscrew the main fuel filter (3) and dispose of it according to lo- cal environmental regulations.

  • Page 105: Servicing The Air Filter (Optional)

    4H50TIC Maintenance 8.2.16 Servicing the air filter (optional) Safety notes 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.
  • Page 106 Maintenance 4H50TIC Air filter housing Retaining clips Air filter cover Dust discharge valve Secondary filter Primary filter Air gun with extension tube (tip bent) Lamp Sealing surfaces Replacing the primary/secondary filters Step Activity Open the retaining clips (2) and remove the air filter cover (3).

  • Page 107: Changing Coolant

    4H50TIC Maintenance Step Activity Check the filter cartridge for tears or other damage in the filter paper by holding it against the light at a slant or shining light from a lamp (8) through it. In case of doubt, always replace the primary filter.
  • Page 108 Maintenance 4H50TIC CAUTION Danger of environmental damage from spilled coolant. Coolant is water-polluting. ▪ Do not allow it to enter the ground water, water bodies, or sewage system. ▪ Collect the coolant and dispose of it according to local envi- ronmental regulations.
  • Page 109 4H50TIC Maintenance Drain hose Draining the cooling system Step Activity Provide a container to collect the used coolant. The container must be large enough to hold the entire amount of oil. For the amount of coolant, see section 4.1 Engine information and filling quantities, page 21.

  • Page 110: Resetting The Maintenance Interval Indicator

    Maintenance 4H50TIC 8.2.18 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 larger ser- vice is due. Overview – HATZ instrument boxes...

  • Page 111: Faults

    4H50TIC Faults Faults Troubleshooting 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. Indicator for engine fault on the HATZ instrument box is flashing.
  • Page 112 Faults 4H50TIC At low temperatures (engine does not start) Possible causes Remedy Chapter Oil is too viscous and Change the engine oil and oil 8.2.6 Changing causes a too low filter. the engine oil starter speed. Add engine oil with a suitable and oil filter, viscosity class.
  • Page 113 4H50TIC Faults The engine loses power and speed. Possible causes Remedy Chapter Engine running due to Heed the flashing code table. 9.2 Flash code a fault in the emer- table for engine gency run function (in- faults, page 114 strument box sends Switch off the engine, wait at 7.4 Switching off...
  • Page 114 Faults 4H50TIC Flash code table for engine faults When engine faults occur, a flashing signal is shown on the indicator lamp for "Engine fault" (see Explanation of symbols, chapter 5.2 HATZ instrument box, page 40). The table below shows the possible flashing signals, their meaning and measures for remedies.
  • Page 115 4H50TIC Faults Flashing signal Possible causes Remedy Chapter 1 – 3 Air filter is dirty. Service the air fil- 8.2.16 Ser- Area affected: ter. vicing the Air supply air filter (op- tional), page Charge air temper- Clean the radiator 8.2.7 En- ature after the fins.
  • Page 116 Faults 4H50TIC Flashing signal Possible causes Remedy Chapter 2 – 3 Engine oil pressure ▪ Check the oil 7.5 Check Area affected: too high/too low. level, top up the the oil level, Engine oil tem- engine oil if re- page 61 perature/engine quired.

  • Page 117: Start Support

    4H50TIC Faults Start support Safety notes DANGER Danger of explosion due to the generation of sparks. When carrying out the start support, a battery can generate an explosive gas mixture. ▪ Avoid fire, sparks, open flames and smoking. ▪ Avoid short-circuits.
  • Page 118 Faults 4H50TIC WARNING Danger of injury or property damage due to incorrectly car- ried out start support. If the instructions for the start support are not adhered to pre- cisely, there is a danger of explosion due to the generation of sparks as well as a danger of chemical burns due to leaking bat- tery acid.
  • Page 119 4H50TIC Faults Battery Discharged battery Current emitting battery Red start support cable (positive (+) terminal) Clamp pliers on the positive (+) terminal of the discharged bat- tery Clamp pliers on the positive (+) terminal of the current emitting battery Black start support cable (negative (–) terminal) Clamp pliers on the negative (–) terminal of the current emitting...
  • Page 120 Faults 4H50TIC Overview – 24 volt model NOTICE The 24 volt model is supplied with two 12 volt batteries that are connected in series with a connection cable (C). Batterys Discharged batteries Current emitting batteries Connection cable between the batteries Red start support cable (positive (+) terminal)
  • Page 121 4H50TIC Faults Procedure – 24 volt model Step Activity Either two batteries (12 volts) with connection cable (C) can be used for start support in accordance with Overview – 24 volt model or an external device with a 24 volt system. See also the instructions in the documentation for the external device.

  • Page 122: Storage And Disposal

    Storage and disposal 4H50TIC 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 123 4H50TIC Storage and disposal NOTICE Comply with the safety chapter! Follow the basic safety instructions in chapter 3 Safety, page 7. Storing the machine for a lengthy period Take the following measures if you intend to take the machine out of service...

  • Page 124: Disposing Of The Machine

    Storage and disposal 4H50TIC Recommissioning Step Activity Remove all covers. Check the cables, hoses and lines for cracks and leak tightness. Check the engine oil level. Check the coolant level. Install the battery in accordance with the Operator's Manual for the machine.

  • Page 125: Installation Declaration

    Motorenfabrik Hatz GmbH & Co.KG Ernst-Hatz-Straße 16 D-94099 Ruhstorf a. d. Rott hereby declares that the incomplete machine: product description: Hatz diesel engine Type designation and as of serial number: 3H50TIC = 13510, 3H50TI = 16310 4H50TIC = 13610, 4H50TI = 16110 satisfies the following basic safety and health protection requirements in acc.

  • Page 126: Epa And Carb Certified Engines

    EPA AND CARB CERTIFIED ENGINES 4H50TIC EPA AND CARB CERTIFIED ENGINES SUPPLEMENTAL INFORMATION TO THE OWNER'S MANUAL FOR MODEL YEAR 2017 FOR EPA AND CALIFORNIA CERTIFIED NONROAD COMPRESSION IGNITION ENGINES. EPA AND CALIFORNIA EMISSION CONTROL SUPPLEMENTAL WARRANTY STATEMENT. Operator’s Manual...
  • Page 127 4H50TIC EPA AND CARB CERTIFIED ENGINES EPA AND CARB EMISSION CONTROL WARRANTY STATEMENT. YOUR WARRANTY RIGHTS AND OBLIGATIONS. The California Air Resources Board and Motorenfabrik Hatz GmbH & Co. KG is pleased to explain the emission control system warranty on your Model Year 2017 engine.
  • Page 128 EPA AND CARB CERTIFIED ENGINES 4H50TIC If any emission-related part on your engine is defective, the part will be re- paired or re- placed by Motorenfabrik Hatz GmbH & Co. KG. The warranty period shall begin: ▪ on the date the equipment is first delivered to the first retail purchaser, or;...
  • Page 129 Customer Assistance If you have any questions regarding your warranty rights and responsibilities, you should contact HATZ DIESEL OF AMERICA, Inc. at (262)-544-0254. What is Not Covered by the Emission Warranty Please note that Emission Warranty does not cover: ▪...
  • Page 130 EPA AND CARB CERTIFIED ENGINES 4H50TIC ▪ Equipment with an altered or disconnected hourmeter where the hours cannot be determined. Equipment normally operated outside the United States. ▪ Non-defective parts replaced by other than Motorenfabrik Hatz dealers. What is Covered by the Emission Warranty...
  • Page 131 SUPPLEMENTAL LIMITED WARRANTY. Hatz Diesel of America, Inc. hereinafter referred to as “HATZ” warrants each of the above-listed parts when installed in a new engine sold by Hatz to be free from defects in material and workmanship under normal use and ser-...
  • Page 132 EPA AND CARB CERTIFIED ENGINES 4H50TIC Hatz reserves the right to modify, alter, and improve any engine or parts in accordance with the applicable regulations without incurring any obligation to replace any engine or parts previously sold with such modified, altered, or improved engine or parts.
  • Page 133 4H50TIC EPA AND CARB CERTIFIED ENGINES CALIFORNIA Proposition 65 Warning Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm. HATZ Operator’s Manual...
  • Page 134 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 436 006 03 - 10.2017 - 0.1 Printed in Germany USA - EPA IV - CARB CREATING POWER SOLUTIONS.

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