Hatz 2L41C User Manual

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CREATING POWER SOLUTIONS.

OPERATOR’S MANUAL

Diesel engine

Hatz Diesel

2L41C | 2M41 | 2M41Z

www.hatz-diesel.com

INCLUDES SUPPLEMENTAL INFORMATION TO

THE OWNER’S MANUAL FOR MODEL YEAR

2019 EPA CERTIFIED NONROAD COMPRES-

SION-IGNITION ENGINES.

INCLUDES SUPPLEMENTAL INFORMATION FOR

THE USE OF EPA CERTIFIED ENGINES WITHIN

CALIFORNIA.

Table of Contents

Other manuals for Hatz 2L41C

Operator's Manual110 pages

Questions and Answers:

S
sgrimesAug 16, 2025
What to do if Hatz 2L41C Engine does not start?
- N
  newmanjamesAug 16, 2025
  If your Hatz Engine doesn't start, consider these possible causes and solutions: * Ensure the speed control lever is correctly positioned. Depending on the situation, set it to the 1/2 start or max START position and ensure it remains fixed. * If there's no fuel at the injection pump, refuel. Also, try activating the manual lever of the fuel pump. * Systematically check the entire fuel supply system, including the fuel feed line to the engine, the fuel prefilter, and the main fuel filter. * Verify the function of the feed pump. If difficulties persist after extended periods of disuse, and activating the feed pump helps, verify the fuel system's sizing. If the injection nozzle isn't working, contact Hatz service.
M
monroejamesAug 18, 2025
What to do if my Hatz Engine does not start?
- M
  Mrs. Michelle SchultzAug 18, 2025
  If your Hatz Engine doesn't start, make sure there is fuel at the injection pump by refueling. Also, activate the feed pump until you hear the fuel flowing back through the return line into the fuel tank. Depending on the possibility or requirement, place the lever in either the 1/2 start or max. START position and ensure the lever is fixed in this position. Systematically check the entire fuel supply: Check the feed line to the engine, the fuel prefilter, the fuel filter, and the function of the feed pump.
S
samanthamorganAug 21, 2025
Why is my Hatz 2L41C Engine losing power and speed?
- T
  Tina WareAug 22, 2025
  If your Hatz Engine is losing power and speed, here are a few potential reasons: * If the speed adjustment lever won't stay put, try blocking it in the desired position. * Check the fuel supply. Make sure you haven't run out of fuel. Add fuel if needed. * A clogged fuel prefilter or main fuel filter can also cause this issue, so replace the fuel filter. * Also, ensure the tank is adequately vented and check the line screw connections for any leaks.
K
Kristine TrujilloAug 25, 2025
How to start Hatz Engine in cold weather?
- K
  Kimberly GriffinAug 26, 2025
  If your Hatz Engine is having trouble starting in cold weather, consider these factors: * Check the fuel. Ensure the fuel from the feed line is clear, not cloudy. If gelled, thaw the engine or drain the system and refill with temperature-resistant fuel. * If the oil is too viscous, change the engine oil and oil filter, using a suitable viscosity class. * Uncouple the engine from the machine, if possible.
J
Jason DodsonAug 28, 2025
Why Hatz 2L41C Engine loses power, speed and emits black smoke?
- K
  Katherine WalkerAug 28, 2025
  If your Hatz Engine is losing power and speed while emitting black smoke, it could be due to: * A dirty air filter. Check it for contamination and clean or replace it if needed. * If the air filter is ok, adjust the tappet clearance.
D
Donald WolfeAug 31, 2025
What causes Hatz Engine to overheat?
- C
  Christie TurnerAug 31, 2025
  If your Hatz Engine is overheating and the temperature indicator lamp is on, it could be caused by: * Too much engine oil. Drain the excess oil until it reaches the upper mark on the dipstick. * Inadequate cooling due to contamination. Clean the cooling air area.
S
Sean ProctorSep 2, 2025
What to do if Hatz 2L41C Engine switches off spontaneously?
- M
  Mark ReevesSep 2, 2025
  If your Hatz Engine is spontaneously switching off during operation, consider these possible causes: * Check the fuel level. The tank may have run out of fuel, so fill it up. * A clogged fuel prefilter or main fuel filter can cause this, so change the fuel filter. * Inspect the poly v belt for damage. If it's torn, replace it.
M
Melanie SmithSep 5, 2025
What to do if Hatz 2L41C Engine starts then stops?
- H
  Hannah HuberSep 5, 2025
  If your Hatz Engine starts but doesn't keep running after you release the starter, consider these possibilities: * Ensure the speed control lever is fully in the Start position. Set the lever to the Start position. * If possible, separate the engine from the machine by uncoupling it. * A clogged fuel prefilter or main fuel filter could be the culprit, so change the fuel prefilter or change the main fuel filter. * Systematically check the entire fuel supply to ensure it is not interrupted. * Check the oil level if there's a stop signal from monitoring elements due to low oil pressure.
G
griffincassandraSep 9, 2025
Why Hatz Engine shuts off with automatic electrical switch-off?
- I
  igarciaSep 9, 2025
  If your Hatz Engine shuts off with the automatic electrical switch-off mechanism, it could be due to: * Low oil pressure. Check the oil level. * High engine temperature. Check the cooling air guides for contamination or other impairments.
J
Johnny MooreSep 12, 2025
What to do if Hatz 2L41C Engine starter does not switch on?
- S
  Sydney ValenciaSep 12, 2025
  If the starter of your Hatz Engine doesn't switch on and the engine doesn't turn, the cause may be irregularities in the electrical equipment. Check the electrical equipment and its components.

Hatz 2L41C Specifications

General

Engine Model	2L41C
Number of Cylinders	2
Fuel System	Direct injection
Lubrication System	Forced lubrication with gear pump
Starting System	Electric starter
Cooling System	Air-cooled
Engine Type	4-stroke diesel

Summary

3 Safety

3.1 General Information

Introduction to safety, intended use, and user obligations.

3.2 Safety Notes

Detailed safety instructions for operation and maintenance.

4 Technical Data

4.1 Engine Information and Filling Quantities

Specifications and fluid capacities for engine models.

4.2 Engine Type Plate

4.4 Engine Oil

Specifications and recommendations for engine oil.

4.5 Fuel

Requirements and types of diesel fuel suitable for the engine.

5 Engine Design

6 Transport, Assembly and Commissioning

6.2 Installation Notes

7 Operation and Use

7.1 Safety Notes

General safety warnings for operating the engine.

7.3 Start Preparation

7.5 Starting the Engine

Options and procedures for starting the engine.

7.5.1 Starting the Engine with Crankhandle

Detailed steps for starting using a crankhandle.

7.5.2 Starting the Engine with a Starter

Detailed steps for starting using an electric starter.

7.6 Switching Off the Engine

Procedures for stopping the engine.

7.7 Refueling

Safety precautions and instructions for refueling the engine.

7.8 Check the Oil Level

Procedure for checking and maintaining the engine oil level.

8 Maintenance

8.1 General Maintenance Instructions

Overarching guidelines and safety for maintenance tasks.

8.2 Maintenance Work

Specific tasks and safety notes related to maintenance.

8.2.2 Maintenance Plan

Schedule of maintenance tasks based on operating hours.

8.2.5 Change the Engine Oil

Step-by-step guide for changing the engine oil.

8.2.7 Cleaning the Cooling Fan, Cooling Fins and Oil Cooler

8.2.10 Changing the Fuel Prefilter

Step-by-step guide for replacing the fuel prefilter.

8.2.11 Maintaining the Dry Air Filter

Procedures for cleaning and maintaining the air filter.

8.2.12 Checking and Cleaning the Air Filter Cartridge

8.2.13 Check and Set the Tappet Clearance

8.2.14 Changing the Oil Filter

8.2.15 Change the Main Fuel Filter

8.2.17 Renewing the Poly V Belt

9 Faults

9.1 Troubleshooting

Guide for diagnosing and resolving common engine issues.

9.2 Emergency Start

12 EPA Certified Engines

Supplemental Information

Engine Parts Related to EPA Regulations

Maintenance Schedule - EPA Related Parts

Emission Control System and Adjustments

EPA Emission Control Warranty Statement

Details of the warranty for emission control components.

Parts with Supplemental Limited Warranty

Supplemental Limited Warranty Details

Emission-Related Installation Instructions

Instructions on the Installation of the Exhaust System

13 EPA Certified Engines Within California

Supplemental Information for California Use

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