Hatz Diesel 1D81 Owner's Manual
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Hatz Diesel 1D81 Owner's Manual

For 2018 year
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See also: Operator's Manual
INCLUDES SUPPLEMENTAL INFORMATION TO
THE OWNER'S MANUAL FOR MODEL YEAR 2018
EPA CERTIFIED NONROAD COMPRESSION-IG-
NITION ENGINES.
INCLUDES SUPPLEMENTAL INFORMATION FOR
THE USE OF EPA CERTIFIED ENGINES WITHIN
CALIFORNIA.
CREATING POWER SOLUTIONS.
1D42. | 1D50. | 1D81. | 1D90.
OPERATOR'S MANUAL
Diesel engine
Hatz Diesel
www.HATZ-DIESEL.com

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Do you have a question about the 1D81 and is the answer not in the manual?

Questions and answers

Bryan Rixon
May 2, 2025

1D81 Has ecessive black smoke on startup. A new injector has been fitted

0
1 comments:
Mr. Anderson
May 16, 2025

Excessive black smoke on startup for a Hatz 1D81 engine after fitting a new injector could be caused by:

1. Dirty air filter unit – check and clean or replace the air filter if necessary.
2. Tappet clearance not correctly set – adjust the tappet clearance as required.
3. Injector (injection nozzle) not functioning correctly – contact Hatz Service to check if the new injector is working properly.

This answer is automatically generated

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Summary of Contents for Hatz Diesel 1D81

  • Page 1 CREATING POWER SOLUTIONS. INCLUDES SUPPLEMENTAL INFORMATION TO 1D42. | 1D50. | 1D81. | 1D90. THE OWNER’S MANUAL FOR MODEL YEAR 2018 EPA CERTIFIED NONROAD COMPRESSION-IG- OPERATOR’S MANUAL NITION ENGINES. Diesel engine INCLUDES SUPPLEMENTAL INFORMATION FOR THE USE OF EPA CERTIFIED ENGINES WITHIN CALIFORNIA.

  • Page 3: Table Of Contents

    1D42, 1D50, 1D81, 1D90 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...
  • Page 4 Table of contents 1D42, 1D50, 1D81, 1D90 7.5.1 Switching off the engine (mechanical) ................ 56 7.5.2 Switching off the engine (electrical) ...................  57 Checking the oil level and adding oil if necessary .............  58 7.6.1 Engine oil level........................ 59 7.6.2 Oil level in the oil bath air filter (option)................

  • Page 5: Notices

    1D42, 1D50, 1D81, 1D90 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

    General information 1D42, 1D50, 1D81, 1D90 General information Information on the document This manual was created with due care. It is exclusively intended to offer a technical description of the machine and to provide instructions on commis- sioning, operating and maintaining the machine. When operating the ma- chine, the applicable standards and legal regulations as well as any in-house regulations apply.

  • Page 7: Safety

    1D42, 1D50, 1D81, 1D90 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.

  • 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

    1D42, 1D50, 1D81, 1D90 Safety Obligations of the operating and maintenance personnel Personnel assigned with operating and maintaining the machine must have read and understood this manual or must possess the qualifications neces- sary for working with this equipment, acquired in training/instructional cour- ses.

  • Page 10: Meaning Of Safety Symbols

    Safety 1D42, 1D50, 1D81, 1D90 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 1D42, 1D50, 1D81, 1D90 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.

  • Page 12: Safety Notes

    Safety 1D42, 1D50, 1D81, 1D90 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 1D42, 1D50, 1D81, 1D90 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 1D42, 1D50, 1D81, 1D90 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.

  • 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 1D42, 1D50, 1D81, 1D90 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 1D42, 1D50, 1D81, 1D90 Safety ▪ 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. Measures following maintenance and troubleshooting ▪ Securely reconnect loose electrical connections; check that the electrical components and equipment are functioning properly.

  • Page 18: Electrical Equipment

    Safety 1D42, 1D50, 1D81, 1D90 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 1D42, 1D50, 1D81, 1D90 Safety CAUTION Danger of chemical burns Chemical burns can occur when using batteries for the electrical operation. ▪ Protect your eyes, skin, and clothing from corrosive battery acid. ▪ Immediately rinse areas affected by splashed acid with clear water and consult a physician if necessary.

  • Page 20: Labels

    Safety 1D42, 1D50, 1D81, 1D90 Labels Warning labels and information signs on the engine Label Meaning Maintenance instructions (see chap- 1D42: IN 0.1 mm EX 0.2 mm 1D50: IN 0.1 mm EX 0.2 mm 1D81: IN 0.3 mm EX 0.3 mm ter 8.1 General maintenance instruc-...
  • Page 21 1D42, 1D50, 1D81, 1D90 Safety Label Meaning Crankhandle start: 1. Engine stopped. 2. Actuate the decompression lever. 3. After engaging the automatic de- compression on the end stop, five crankhandle turns are required un- til the engine compresses again and can ignite.
  • Page 22 Safety 1D42, 1D50, 1D81, 1D90 Label Meaning Mechanical oil pressure shut down device (option): 1. Engine has switched off automati- cally. 2. Fill with fuel. 3. Make sure the engine is horizon- 0000 051 268 02 tal. 4. Check the oil level.

  • Page 23: Technical Data

    1D42, 1D50, 1D81, 1D90 Technical data Technical data Engine information and filling quantities Type 1D42 1D50 1D81 1D90 Model S, Z, C S, Z S, Z, C S, Z Type Air cooled four stroke diesel engine Combustion system Direct injection...
  • Page 24 Technical data 1D42, 1D50, 1D81, 1D90 Engine oil capacities Oil sump Standard 1 adapter ring 2 adapter rings Type tot. ltr. dif. ltr. tot. ltr. dif. ltr. tot. ltr. dif. ltr. 1D42 S/Z 1D42 C – – – – 1D50 S/Z –...

  • Page 25: Engine Type Plate

    1D42, 1D50, 1D81, 1D90 Technical data Engine type plate EMISSION CONTROL SYSTEM INFORM.: VARIABLE SPEED. ULTRA LOW SULFUR FUEL ONLY. Power Category: The layout of the EPA/CARB type plate depends on the engine application and is affixed to the crankcase or noise reduction capsule.
  • Page 26 Technical data 1D42, 1D50, 1D81, 1D90 The following data must always be specified for requests and spare part or- ders Engine type/specification (only for special equipment) Engine serial number Max. engine speed (rpm) Always install the engine appropriate for the intended application to fulfill the EPA and CARB exhaust requirements.

  • Page 27: Physical Operating Conditions

    1D42, 1D50, 1D81, 1D90 Technical data Engine type number Type number 1D81 1D42 1D50 1D81 Physical operating conditions Engine adjustment The engine is normally adjusted to operate within the standard reference conditions stipulated in ISO 3046-1: Parameter Unit Value Intake air temperature °C...
  • Page 28 Technical data 1D42, 1D50, 1D81, 1D90 CAUTION Damage to the diesel oxidation catalyst (DOC) from using unsuitable engine oil. Unsuitable engine oil diminishes the functionality and service life of the catalytic converter. Only use engine oils with very low quantities of sulfate ash, phosphor and sulfur –...

  • Page 29: Fuel

    1D42, 1D50, 1D81, 1D90 Technical data Fuel Fuel type All types of diesel fuel that meet the minimum requirements of the following specifications are suitable: ▪ Europe: EN 590 ▪ UK: BS 2869 A1 / A2 ▪ USA: ASTM D 975-09a 1-D S15 or 2-D S15 ▪...
  • Page 30 Technical data 1D42, 1D50, 1D81, 1D90 CAUTION Danger of damage to the diesel oxidation catalyst. The use of petroleum with increased levels of sulfur will damage the catalytic converter. ▪ Only mix petroleum with a maximum sulfur content of 50 ppm.

  • Page 31: Engine Design

    1D42, 1D50, 1D81, 1D90 Engine design Engine design Standard version – 1D42, 1D50, 1D81, 1D90 S/Z Pos. Designation Intake opening for cooling air Dry air filter Decompression lever (for hand start) Stop lever (option) Coolant air outlet Silencer with contact protection...
  • Page 32 Engine design 1D42, 1D50, 1D81, 1D90 Pos. Designation Oil filter (option) Type plate Water separator Intake opening for combustion air Encapsulated model "Silent Pack" – 1D42C, 1D81C Pos. Designation Access cover to air filter Decompression lever (for hand start) Cold-start oil metering device (option)
  • Page 33 1D42, 1D50, 1D81, 1D90 Engine design Pos. Designation Fuel filter Coolant air outlet Battery connection and central connector for electrical equip- ment (option) Stop lever (option) Speed control lever Oil filling opening and dipstick Oil drain screw Type plate HATZ...

  • Page 34: Transport, Assembly And Commissioning

    Transport, assembly and commissioning 1D42, 1D50, 1D81, 1D90 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 35: 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 36: Preparations For Commissioning

    Transport, assembly and commissioning 1D42, 1D50, 1D81, 1D90 ▪ Incorrect cable connections and incorrect operation of the electrical equip- ment can lead to sparking and must be avoided. ▪ After the engine is installed in the machine, rotating parts must be pro- tected against contact.

  • Page 37: Filling Engine Oil (First Filling)

    ▪ When checking the oil level, the engine must be horizontal and have been switched off for a few minutes. Overview – Standard version 1D42, 1D50, 1D81, 1D90 S/Z Dipstick Oil refilling container HATZ...
  • Page 38 Transport, assembly and commissioning 1D42, 1D50, 1D81, 1D90 Overview – Encapsulated model 1D42C, 1D81C Dipstick Oil refilling container Procedure Step Activity Pull out the dipstick (1) and clean it. Fill engine oil. For the specification and viscosity, see chapter 4.4 Engine oil, page 27.

  • Page 39: Filling The Oil Bath Air Filter (Option)

    1D42, 1D50, 1D81, 1D90 Transport, assembly and commissioning Filling the oil bath air filter (option) Overview Clamp fastener (2x opposing) Oil container Gasket Level mark Procedure Step Activity Release the clamp fasteners (1). Remove the oil container (2). Fill the oil container with engine oil up to the level mark (4).

  • Page 40: Operation And Use

    Operation and use 1D42, 1D50, 1D81, 1D90 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 41: Performing Tests

    1D42, 1D50, 1D81, 1D90 Operation and use Max. permissible forces at the speed control and stop levers – < – – – Performing tests Before starting Before starting the engine, several tests need to be performed to ensure the machine is working properly.

  • Page 42: Start Preparation

    (option):, page Set the speed adjustment (see chapter 7.3.3 Setting the speed control, page 46). 7.3.1 Activating automatic decompression Overview – Standard version 1D42, 1D50, 1D81, 1D90 S/Z Position 0 Position 1 Decompression lever Operator’s Manual...

  • Page 43: Activating The Mechanical Oil Pressure Shut Down Device (Option)

    1D42, 1D50, 1D81, 1D90 Operation and use Overview – Encapsulated model 1D42C, 1D81C Position 0 Position 1 Decompression lever Procedure Step Activity Turn the decompression lever (2) to the end stop (position 1). The automatic decompression engages audibly in this position and the engine is ready to start.
  • Page 44 The fuel tank must be full so that venting is completed after 15 seconds. Overview – Standard version 1D42, 1D50, 1D81, 1D90 S/Z Manual lever (oil pressure monitoring) Manual lever (fuel feed pump) Overview –...
  • Page 45 1D42, 1D50, 1D81, 1D90 Operation and use Sleeve Procedure Step Activity If the engine has shut down independently, fill with fuel. Check the oil level. Make sure the engine is horizontal when doing this. Top up engine oil if required.

  • Page 46: Setting The Speed Control

    Operation and use 1D42, 1D50, 1D81, 1D90 7.3.3 Setting the speed control Overview START START STOP START START STOP STOP STOP Speed control lever Stop lever (option) Procedure Step Activity Depending on the situation, place the speed control lever (1) in either the "1/2" or "Start" position.

  • Page 47: Starting The Engine

    1D42, 1D50, 1D81, 1D90 Operation and use Starting the engine Starting options A hand start mechanism is standard equipment for the engine. A starter can be installed as an option. If possible, separate the engine from the machine being driven by uncou- pling it.
  • Page 48 Operation and use 1D42, 1D50, 1D81, 1D90 CAUTION Danger of injury from recoiling of the engine. ▪ Use a crankhandle with a recoil damper. ▪ Hold the handle bar so that it cannot twist and quickly turn the crank so that continuous traction between the engine and crank is ensured.
  • Page 49 1D42, 1D50, 1D81, 1D90 Operation and use Drive dog Guide sleeve Crankhandle Starting the engine with a recoil-dampened crankhandle Step Activity Insert the drive dog into the guide sleeve. Assume the correct position. Grasp the handle bar with both hands.

  • Page 50: Starting The Engine When Cold

    Operation and use 1D42, 1D50, 1D81, 1D90 Step Activity Turn the crankhandle forcefully with increasing speed. When the decompression lever engages in the "0" position (compression), the highest possible speed must be reached. As soon as the engine starts, pull the crankhandle out of the guide sleeve (4).

  • Page 51: Starting The Engine With A Starter

    1D42, 1D50, 1D81, 1D90 Operation and use Step Activity Mount the dosing unit cover (1) and press firmly into place. Two consecutive fillings are required. Pull the decompression lever to the end stop. Start the engine immediately (see chapter 7.4.1 Starting the en- gine with crankhandle, page 47).
  • Page 52 Operation and use 1D42, 1D50, 1D81, 1D90 Indicators The function of all indicators is checked when the starting key is turned. They flash or light up for different times. If there is a fault, the applicable indi- cator does not go out after the engine start or it lights up again during opera- tion.
  • Page 53 1D42, 1D50, 1D81, 1D90 Operation and use Functional description The stop lever (10) is actuated with the stop magnet (11). At starting key po- sition (0) the stop lever is in the "STOP" position - the engine can not be started.
  • Page 54 Operation and use 1D42, 1D50, 1D81, 1D90 Step Activity As soon as the engine is running, release the starting key. ▪ The starting key springs back to position "I" and remains in this position during operation. ▪ The charge control (7) and oil pressure display (6) go out.

  • Page 55: Switching Off The Engine

    1D42, 1D50, 1D81, 1D90 Operation and use Step Activity Turn the starting key back to position "I". The fault display lights up again. Remedy the fault before making further starting attempts (see chapter 9.1 Trouble shooting, page 94). The indicator then goes out at the next start.

  • Page 56: Switching Off The Engine (Electrical)

    Operation and use 1D42, 1D50, 1D81, 1D90 7.5.1 Switching off the engine (mechanical) NOTICE Engines with a blocked lower idle speed cannot be switched off with the speed control lever. In this case, the engine is switched off with the stop lever or starting key, depending on how the en- gine is equipped.

  • Page 57: Switching Off The Engine (Electrical)

    1D42, 1D50, 1D81, 1D90 Operation and use 7.5.2 Switching off the engine (electrical) Overview Protective cap Starting key Stop lever Stop magnet Ignition lock Operation HATZ Operator’s Manual...

  • Page 58: Checking The Oil Level And Adding Oil If Necessary

    Operation and use 1D42, 1D50, 1D81, 1D90 Procedure Step Activity Turn the starting key to position "0". The stop lever (3) is actuated in the "STOP" position with the stop magnet (4). The engine switches off. All indicator lamps go out.

  • Page 59: Engine Oil Level

    When checking the oil level, the engine must be horizontal and have been switched off for a few minutes. 7.6.1 Engine oil level Overview – Standard version 1D42, 1D50, 1D81, 1D90 S/Z Dipstick Oil refilling container Overview – Encapsulated model 1D42C, 1D81C...

  • Page 60: Oil Level In The Oil Bath Air Filter (Option)

    Operation and use 1D42, 1D50, 1D81, 1D90 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 61: Refueling

    1D42, 1D50, 1D81, 1D90 Operation and use Step Activity Check for dirt. When the deposited dirt has reached approximately half the height of the oil filling or the oil has become viscous, clean the oil bath air filter (see chapter 8.2.6 Cleaning the oil bath air filter (option), page 79).
  • Page 62 Operation and use 1D42, 1D50, 1D81, 1D90 Overview – Standard version 1D42, 1D50, 1D81, 1D90 S/Z Fuel tank Fuel cap Fuel feed pump Manual lever Procedure NOTICE ▪ Before starting for the first time or if the fuel system is empty, fill the fuel tank fully with diesel fuel.

  • Page 63: Checking The Water Separator

    Overview – Standard version 1D42, 1D50, 1D81, 1D90 S/Z Water in the fuel tank collects at the lowest point of the fuel tank in the water separator.

  • Page 64: Check The Air Filter Warning Indicator (Option)

    Operation and use 1D42, 1D50, 1D81, 1D90 Drain screw, hex (standard) Window (additional equipment) Drain screw (manually operated) Procedure Step Activity Model with window: Check the window (2) for water content. Collected water can be clearly identified by the noticeable sepa- rating line between the water and the diesel fuel above it.
  • Page 65 1D42, 1D50, 1D81, 1D90 Operation and use Procedure Step Activity Bring the engine briefly to maximum speed. When the rubber bellow (1) contracts and covers over the green field (2), immediately check the air filter system (see chapter 8.2.11 Maintaining the dry air filter, page 90).

  • Page 66: Maintenance

    Maintenance 1D42, 1D50, 1D81, 1D90 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 67: Maintenance Work

    1D42, 1D50, 1D81, 1D90 Maintenance ▪ For engines with an electric starter: Disconnect the negative battery termi- nal before carrying out maintenance work. Performance of maintenance work The entire machine is designed to be maintenance friendly. Parts that re- quire maintenance are easily accessible.
  • Page 68 Maintenance 1D42, 1D50, 1D81, 1D90 Version without DOC 1D41: IN 0.1 mm EX 0.2 mm 1D42: IN 0.1 mm EX 0.2 mm 1D50: IN 0.1 mm EX 0.2 mm DIESEL 1D81: IN 0.1 mm EX 0.2 mm 1D90: IN 0.3 mm EX 0.3 mm...

  • Page 69: Maintenance Plan

    1D42, 1D50, 1D81, 1D90 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 70: Changing The Engine Oil And Oil Filter

    Maintenance 1D42, 1D50, 1D81, 1D90 Symbol Maintenance in- Maintenance step/check Chapter terval Every 250 operat- Change the engine oil. 8.2.5 Changing 250h ing hours the engine oil and oil filter, page 74 Clean the oil bath air filter. 8.2.6 Cleaning...
  • Page 71 In case of heavy contamination, shorten the maintenance inter- vals accordingly (see chapter 8.2.2 Maintenance plan, page 69). Overview – Standard version 1D42, 1D50, 1D81, 1D90 S/Z Intake opening on the dry air filter Intake opening on the cyclone precleaner (option)
  • Page 72 Maintenance 1D42, 1D50, 1D81, 1D90 Overview – Encapsulated model 1D42C, 1D81C Intake opening for combustion air and cooling air Procedure Step Activity Depending on the model, check the intake opening (1, 2 or 4) for coarse contamination such as leaves, heavy dust deposits, etc., and clean if necessary.
  • Page 73 NOTICE In case of heavy contamination, shorten the maintenance inter- vals accordingly (see chapter 8.2.2 Maintenance plan, page 69). Overview – Standard version 1D42, 1D50, 1D81, 1D90 S/Z Intake opening for cooling air Coolant air outlet Overview – Encapsulated model 1D42C, 1D81C...
  • Page 74 Maintenance 1D42, 1D50, 1D81, 1D90 Procedure Step Activity Depending on the model, check the intake opening (1) and cool- ing air outlet (2) for coarse contamination such as leaves, heavy dust deposits, etc., and clean if necessary (see chapter 8.2.8 Cleaning the cooling air area, page 85).
  • Page 75 ▪ The engine must be switched off. ▪ Only drain engine oil while it is warm. Draining the engine oil Overview – Standard version 1D42, 1D50, 1D81, 1D90 S/Z Oil drain screw (side) Oil drain screw (front) Gasket HATZ Operator’s Manual...
  • Page 76 Maintenance 1D42, 1D50, 1D81, 1D90 Procedure Step Activity Depending on accessibility, the engine oil can be drained at oil drain screw (1) or (2). Unscrew the oil drain screw and drain the used oil entirely. Screw in the cleaned oil drain screw with the new gasket (3) and tighten.
  • Page 77 1D42, 1D50, 1D81, 1D90 Maintenance Changing the oil filter (option) Overview Screw cap for oil filter Gasket TOP marking on the oil filter Screen insert Procedure Step Activity Unscrew the screw cap (1). Clean the screen insert (4) carefully to ensure that the wire mesh is not bent.
  • Page 78 Coat the screw cap thread and gasket with "K" lubricant, see spare parts list. Screw in and tighten the screw cap. Filling engine oil Overview – Standard version 1D42, 1D50, 1D81, 1D90 S/Z Dipstick Oil refilling container Overview – Encapsulated model 1D42C, 1D81C...
  • Page 79 1D42, 1D50, 1D81, 1D90 Maintenance Procedure Step Activity Pull out the dipstick (1) and clean it. Fill engine oil. For the specification and viscosity, see chapter 4.4 Engine oil, page 27. For the filling quantity, see chapter 4.1 Engine information and filling quantities, page 23.
  • Page 80 Maintenance 1D42, 1D50, 1D81, 1D90 CAUTION Danger of injury Prolonged contact with engine oil can lead to irritation of the skin. ▪ Wear safety gloves. ▪ If there is contact with the skin, thoroughly wash the af- fected areas of the skin with soap and water.
  • Page 81 1D42, 1D50, 1D81, 1D90 Maintenance Overview 1D41 1D42 1D50 Clamp fastener (2x opposing) Oil container Gasket Filter housing Intake pipe Rain cap Fixing nut Spring washer Shim Gasket package Procedure Step Activity Release the clamp fasteners (1). Remove the oil container (2).
  • Page 82 Maintenance 1D42, 1D50, 1D81, 1D90 Step Activity Remove the dirty oil and sludge and clean the container. Take off and clean the rain cap (6). Clean through the intake pipe (5). Check the gasket (3) and renew if necessary. In case of heavy contamination, remove the filter housing (4) from the engine and rinse it in diesel fuel.
  • Page 83 1D42, 1D50, 1D81, 1D90 Maintenance Overview — Preparatory activities Position 0 (decompression lever is horizontal) Decompression lever Clamp fasteners Side cover Mounting bolt for top cover Top cover Mounting bolts and washers for cylinder head cover Cylinder head cover Gasket...
  • Page 84 Maintenance 1D42, 1D50, 1D81, 1D90 Step Activity For encapsulated model: ▪ After releasing the clamp fasteners (2), remove the side cover (3) including the decompression lever (1). ▪ Unscrew the mounting bolts (4) and remove the top cover (5). Remove dirt in the area of the cover (7).
  • Page 85 1D42, 1D50, 1D81, 1D90 Maintenance Step Activity If the tappet clearance needs to corrected: Release the hex nut (4) and turn the adjustment screw (5) so the feeler gage (3) can be pulled through with a barely percepti- ble resistance after the hex nut is tightened.
  • Page 86 Maintenance 1D42, 1D50, 1D81, 1D90 CAUTION Danger of damage to the machine from incorrect engine cleaning. ▪ Let the engine fully cool down before cleaning. ▪ Do not spray components of the electrical equipment with a water jet or high pressure jet during cleaning.
  • Page 87 1D42, 1D50, 1D81, 1D90 Maintenance Procedure Step Activity Check the condition of all screw connections and ensure that they are tight (for exceptions, see note). Tighten any lose screw connections. 8.2.10 Changing the fuel filter Safety notes DANGER Fire hazard from fuel Leaked or spilled fuel can ignite on hot engine parts and cause serious burn injuries.
  • Page 88 Maintenance 1D42, 1D50, 1D81, 1D90 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 89 1D42, 1D50, 1D81, 1D90 Maintenance Step Activity Figure Unscrew the fuel filter (2) from the holder ▪ Place a suitable container under the fuel filter to collect emerging fuel. ▪ Pull the fuel line (3) off of the fuel filter (2) on both sides and insert a new filter.
  • Page 90 Maintenance 1D42, 1D50, 1D81, 1D90 Step Activity Figure Activate the mechanical oil pressure shut down device (option) (see chapter 7.3.2 Ac- tivating the mechanical oil pressure shut down device (option):, page 43). Check the fuel filter and lines for tightness after a brief trial run.
  • Page 91 1D42, 1D50, 1D81, 1D90 Maintenance Procedure Step Activity Figure Unscrew the air filter cover (1). Unscrew the fixing (2) and re- move the air filter cartridge (3). In the model with an air filter maintenance display, check the condition and cleanliness of the valve shim (4).

  • Page 92: Checking And Cleaning The Air Filter Cartridge

    Maintenance 1D42, 1D50, 1D81, 1D90 Step Activity Figure For encapsulated model: Before mounting the side cover, move the decompres- sion lever (1) into the horizon- tal position. Then mount the cover in the sequence 2..3. NOTE: ▪ Under no circumstances is...
  • Page 93 1D42, 1D50, 1D81, 1D90 Maintenance Overview Air filter cartridge Sealing surfaces Procedure 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. Check the sealing surfaces (2) of the filter cartridge for damage.

  • Page 94: Faults

    Faults 1D42, 1D50, 1D81, 1D90 Faults Trouble shooting 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 is difficult to start, but can be turned easily as...
  • Page 95 1D42, 1D50, 1D81, 1D90 Faults If equipped with mechanical oil pressure shut down device (engine does not start) Possible causes Remedy Chapter No oil pressure. Check the oil level. 7.6 Checking the oil level and adding oil if nec- essary, page 58 Activate the mechanical oil 7.3.2 Activating...
  • Page 96 Faults 1D42, 1D50, 1D81, 1D90 The starter does not switch on and the engine does not turn. Possible causes Remedy Chapter Irregularities in the electrical equipment: Battery and/or other Check the electrical equipment 3.2.4 Electrical cable connections are and its components or contact equipment, page incorrectly connected.
  • Page 97 1D42, 1D50, 1D81, 1D90 Faults Possible causes Remedy Chapter Fault signal from the overvoltage and polarity protection system in the voltage regulator: Battery and/or other Check the electrical equipment 3.2.4 Electrical cable connections are and its components or contact equipment, page incorrectly connected.
  • Page 98 Faults 1D42, 1D50, 1D81, 1D90 With automatic electrical switch-off mechanism (option) Possible causes Remedy Chapter Stop signal of monitoring elements for: ▪ No oil pressure. Check the oil level. 7.6 Checking the oil level and adding oil if nec- essary, page 58 ▪...
  • Page 99 1D42, 1D50, 1D81, 1D90 Faults The engine loses power and speed, and black smoke emerges from the ex- haust Possible causes Remedy Chapter Dirty air filter unit. Check the degree of dirt con- 8.2.11 Maintain- tamination of the air filter, and ing the dry air fil- clean or renew it if necessary.

  • Page 100: Storage And Disposal

    Storage and disposal 1D42, 1D50, 1D81, 1D90 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 101 1D42, 1D50, 1D81, 1D90 Storage and disposal 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 102: Disposing Of The Machine

    Storage and disposal 1D42, 1D50, 1D81, 1D90 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 Operator's Manual for the machine.

  • Page 103: Installation Declaration

    The manufacturer: 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: 1D41=09422; 1D42=13311; 1D42=17210; 1D42C=15710: 1D50=10920; 1D50=17310; 1D81=07327; 1D81=16627; 1D81=17127; 1D81C=16027; 1D81=31627; 1D90=10820; 1D90=16720;...

  • Page 104: Epa Certified Engines

    EPA CERTIFIED ENGINES 1D42, 1D50, 1D81, 1D90 EPA CERTIFIED ENGINES SUPPLEMENTAL INFORMATION TO THE OWNER‘S MANUAL FOR MODEL YEAR 2018 EPA CERTIFIED NONROAD COMPRESSION IGNITION ENGINES EPA EMISSION CONTROL SUPPLEMENTAL WARRANTY STATEMENT AND EMISSION-RELATED INSTALLATION INSTRUCTIONS Operator’s Manual HATZ...
  • Page 105 1D42, 1D50, 1D81, 1D90 EPA CERTIFIED ENGINES MAINTENANCE AND WARRANTY. SUPPLEMENTAL INFORMATION TO THE OWNER‘S MANUAL FOR MODEL YEAR 2018 EPA CERTIFIED NONROAD COMPRESSION IGNITION ENGINES. The following supplemental information is furnished for EPA Nonroad Com- pression Ignition Engines which are certified according to 40 CFR Part 89 and Part 1039.
  • Page 106 Therefore, the maintenance work has to be carried out by a qualified work- shop. Hatz authorised workshops, for example, are qualified workshops. Hatz Diesel of America will give you respective addresses, if required. EMISSION CONTROL SYSTEM AND ADJUSTMENTS. The emission control system for this engine is DI (Direct Injection) and EM (Engine Modification).
  • Page 107 1D42, 1D50, 1D81, 1D90 EPA CERTIFIED ENGINES EPA EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS. Motorenfabrik Hatz GmbH & Co. KG warrants the emission control system on your engine for the periods of time listed below provided there has been no abuse, neglect or improper maintenance of your engine.
  • Page 108 ▪ Emission Control Information Labels 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 109 EPA CERTIFIED ENGINES ▪ In order to obtain service under this warranty, the retail purchaser should contact Hatz Diesel of America, Inc. at (262)-544-0254 for information and the nearest service center. The retail purchaser will not be charged for di-...
  • Page 110 INSTRUCTIONS ON THE INSTALLATION OF THE EXHAUST SYSTEM Following are the instructions to properly install the exhaust system and re- lated components consistent with the EPA emission regulation requirements. 1D42, 1D50, 1D81, 1D90 S/Z 23 Nm 17 lbft Exhaust-silencers and protection guard The exhaust silencer is fitted in connection with studs, flat washers and hex.-...
  • Page 111 1D42, 1D50, 1D81, 1D90 EPA CERTIFIED ENGINES ▪ Torque to specification! ▪ Ensure the usage of silencer with DOC if required for your engine serial number. See serial number Table chapter 4.2.1 , page 26 ▪ Ensure gasket-kit is fitted in correct sequence i.e. the creased gaskets 3 face towards exhaust silencer (A).
  • Page 112 EPA CERTIFIED ENGINES 1D42, 1D50, 1D81, 1D90 ▪ Apply lubricant as specified by HATZ. ▪ Torque to specification! ▪ Before tightening the capsule all screws have to be turned in and the dif- ferent covers have to be correctly adjusted.
  • Page 113 1D42, 1D50, 1D81, 1D90 EPA CERTIFIED ENGINES SAMPLING OF EXHAUST EMISSIONS After the engine is installed in the equipment and placed in service, the sam- pling of exhaust emissions can be performed in a way that prevents diluting the exhaust sample with ambient air as follows: Version 1 Specification 1: Adding a 20-centimeter linear extension to the exhaust pipe.
  • Page 114 EPA CERTIFIED ENGINES 1D42, 1D50, 1D81, 1D90 Version 2 Clamp Engine type Ø d (mm) HATZ-Ident. Nr. HATZ-Ident. Nr. 1D42 S/Z 0000 830 860 00 0000 503 880 00 0000 830 858 00 0000 037 409 00 1D50 S/Z 0000 830 860 00...

  • Page 115: Epa Certified Engines Within California

    1D42, 1D50, 1D81, 1D90 EPA CERTIFIED ENGINES WITHIN CALIFORNIA EPA CERTIFIED ENGINES WITHIN CALIFORNIA SUPPLEMENTAL INFORMATION TO THE OWNER‘S MANUAL FOR THE USE OF EPA CERTIFIED ENGINES WITHIN CALIFORNIA. HATZ Operator’s Manual...
  • Page 116 EPA CERTIFIED ENGINES WITHIN CALIFORNIA 1D42, 1D50, 1D81, 1D90 The following information is taken from the official CARB website and this page was last reviewed October 31, 2012. For the latest information please see http://www.arb.ca.gov/msprog/offroad/preempt.htm "The 1990 amendments to the federal Clean Air Act preempt California con- trol of emissions from new farm and construction equipment under 175 horsepower.
  • Page 117 1D42, 1D50, 1D81, 1D90 EPA CERTIFIED ENGINES WITHIN CALIFORNIA ▪ Conveyors: portable ▪ Power pack: hydraulic ▪ Crawler excavators ▪ Pruner: orchard ▪ Crushers: stone ▪ Pumps 40 cc and above ▪ Cultivators: powered ▪ Rollers: trench ▪ Cutting machine ▪...
  • Page 118 EPA CERTIFIED ENGINES WITHIN CALIFORNIA 1D42, 1D50, 1D81, 1D90 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. Operator’s Manual HATZ...
  • Page 120 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 433 215 18 - 09.2017 - 0.1 Printed in Germany USA - EPA IV CREATING POWER SOLUTIONS.

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