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Mertz Boxer 526DX - User Manual

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MANUFACTURING, LLC
Part No. 999-848.01
Serial No.s 1133 and Higher
526DX Operator’s Manual
BIG POWER IN ALL PLACES

Table of Contents

Questions and Answers

  • M
    Michael ParkerAug 16, 2025
    How to troubleshoot loss of power in Mertz Construction Equipment engine?
    • R
      rowedavidAug 17, 2025
      If your Mertz Construction Equipment engine loses power, consider these potential causes: * The engine load may be excessive. Try reducing the ground speed or the speed of any attachments. * A dirty air cleaner can also cause power loss. Clean the air filter housing and replace the filter elements. * Check the engine oil level in the crankcase and add the appropriate engine oil if it's low. Refer to the engine manual for oil specifications. * Ensure that cooling fins and air passages under the engine blower housing are free from obstructions. * The fuel injectors may be plugged or dirty. In this case, have the diesel fuel injectors serviced by your Authorized Service Dealer.
  • C
    Cheryl SullivanAug 20, 2025
    What to do if Mertz Boxer 526DX starter does not turn the engine over?
    • L
      Lauren LiuAug 20, 2025
      If the starter on your Mertz Construction Equipment isn't turning the engine over, here's what you can check: * Ensure the auxiliary hydraulics lever is in the neutral position, especially if no hydraulically powered attachment is installed. Move the lever to neutral if necessary. * Check the battery. If it's dead, charge it. If it doesn't hold a charge, replace it. * Inspect the electrical connections for corrosion or looseness. Clean the battery terminals and cable clamps. If the cable clamps can't be properly cleaned, replace the connectors. * If the engine is in hydraulic lock due to a cylinder filled with fuel, allow the engine to cool before attempting this procedure. Remove the fuel injectors and turn the engine over to pump excess fuel from the engine cylinder.
  • J
    jaclynstanleyAug 25, 2025
    Why is Mertz Boxer 526DX Construction Equipment engine overheating?
    • W
      wmillerAug 25, 2025
      Several factors can cause a Mertz Construction Equipment engine to overheat. Here are some things to check: * The engine load may be excessive. Try reducing the ground speed or the speed of any attachments. * Check the engine oil level in the crankcase and add the appropriate engine oil if it's low. See the engine manual for oil specifications. * Make sure the cooling fins and air passages under the engine blower housing are free from obstructions. * Verify the cooling system has enough coolant. Refill coolant to the levels and with the type of coolant indicated in the engine manual. * Ensure that the radiator is clean and not plugged.
  • O
    oblankenshipAug 28, 2025
    Why Mertz Boxer 526DX does not travel in either forward or reverse directions?
    • K
      Kevin MaldonadoAug 28, 2025
      If your Mertz Construction Equipment isn't moving in either direction, check these items: * Ensure the engine is running at full speed by advancing the throttle. * If the hydraulic fluid is cold, allow it to fully warm up. * Check the hydraulic fluid level and fill the tank with the appropriate fluid if it's low. * Make sure the fuel tanks are full.
  • J
    Jeffrey JohnsonAug 31, 2025
    What causes abnormal engine vibration in Mertz Boxer 526DX Construction Equipment?
    • L
      Logan ThompsonAug 31, 2025
      If you notice abnormal engine vibration in your Mertz Construction Equipment, check if the engine mounting bolts are loose and tighten them.
  • T
    taylorlaurieSep 4, 2025
    What to do if boom creeps downward more than 3\" per hour in Mertz Construction Equipment?
    • J
      Jessica AtkinsonSep 4, 2025
      If the boom on your Mertz Construction Equipment creeps downward more than 3" per hour with the engine off, it could be due to leaking valve spools or cylinder seals. Replace cylinder seals.
  • J
    Joshua McknightSep 8, 2025
    What to do if boom drops downward quickly and then stops in Mertz Construction Equipment?
    • S
      Susan SantiagoSep 8, 2025
      If the boom on your Mertz Construction Equipment drops downward quickly and then stops when the engine is off, this could be due to leaking cylinder seals. Replace cylinder seals.
  • T
    Terry MorrisonNov 12, 2025
    What to do if Mertz Boxer 526DX Construction Equipment engine will not start?
    • S
      Sarah CameronNov 12, 2025
      If your Mertz Construction Equipment's engine won't start, starts hard, or fails to keep running, here are a few things to check: * Ensure the auxiliary hydraulics lever is in the neutral position, especially if a hydraulically powered attachment is installed. Move the lever to neutral if it isn't. * Make sure the fuel tanks are filled with diesel fuel. * Try cycling the glow plugs for about 10 seconds to see if that helps the engine start. * Check and replace the fuel filter if it is dirty or contaminated. * Also, inspect the air cleaner and replace the filter elements if it's dirty. If there is dirt, water, or stale fuel in the fuel system, drain the fuel tanks into an appropriate storage container, dispose of the bad fuel properly, and refill with fresh, clean fuel. Replacin...

Summary

Boxer Product Warranty

Warranty and Liability Limitations

Details Mertz Manufacturing's warranty terms, exclusions, and limitations for the product.

Safety Introduction

Be Prepared - Get to Know All Operating and Safety Instructions

Emphasizes understanding operating and safety instructions before use.

Learn the Signal Words Used with the Safety Alert Symbol

Explains the meaning of DANGER, WARNING, CAUTION, and IMPORTANT signals.

Section 1 - Safety Precautions

GENERAL SAFETY

Outlines fundamental safety rules for operating the equipment safely.

OPERATING SAFETY

Covers critical safety practices during machine operation and site assessment.

SERVICE & MAINTENANCE SAFETY

Provides essential safety guidelines for performing maintenance and service.

ELECTRICAL SYSTEM HAZARDS

Highlights risks and precautions associated with the machine's electrical system.

Battery Hazards

Details safety precautions when working with and around batteries.

Hydraulic System Hazards

Warns about the dangers of pressurized hydraulic systems and fluid.

Fueling Hazards

Covers safety procedures and warnings related to refueling the machine.

Section 2 - Operating Controls

Component Locations

Identifies and illustrates key components of the machine from different views.

Safety Decals

Shows the location and meaning of various safety decals on the machine.

Operating Controls Description

Explains the function and operation of each control lever, switch, and gauge.

Section 3 - Pre-Start Inspection and Operation

Pre-Start Inspection

Lists essential visual checks to ensure the machine is safe before operation.

Daily Service Checks

Outlines routine daily maintenance tasks for optimal machine performance.

Machine Start-up

Step-by-step guide for safely starting the machine's engine.

Machine Shut-down

Procedures for safely turning off the machine after operation.

Transportation

Instructions for safely transporting the machine on a trailer.

Lifting Procedures

Guidelines for properly lifting and securing the machine.

Machine Travel Controls

Explains how to operate the machine's movement and steering controls.

Attachment Installation and Removal

Detailed steps for attaching and detaching various machine attachments.

Operating Instructions for a Hydraulic Attachment

How to operate the machine with hydraulically powered attachments.

Travel Crawl Control

Instructions for using the crawl control to adjust travel speed for specific tasks.

Section 4 - Routine Service and Maintenance

Daily Maintenance Procedures

Tasks to be performed daily or every 10 operating hours for upkeep.

New Machine Brake-in Maintenance Procedures

Specific maintenance for the first 20 operating hours of a new machine.

Weekly Maintenance Procedures

Tasks to be performed weekly or every 50 operating hours.

Monthly Maintenance Procedures

Tasks to be performed monthly or every 200 operating hours.

Annual Maintenance Procedures

Tasks to be performed annually for comprehensive machine maintenance.

Fuse Panel

Information about fuse locations, circuits, and amperage ratings.

Track and Tension System Installation

Procedures for installing and maintaining the track and tension system.

Section 6 - General Specifications

Engine System

Specifications for the machine's engine type, cooling, HP, fuel tank, and air cleaner.

Hydraulic System

Specifications for the machine's hydraulic system components and performance.

Electrical System

Specifications for the machine's battery and electrical system voltage.

Control System

Details on starting, steering, and control lever functionalities.

Ground Drive System-Dimensions

Mechanical dimensions and track specifications in English and Metric units.

Vibration Data

Declared vibration levels for hand/arm and whole body measurements.

Noise Data

Declared noise emission values for operator and sound power.

Mertz Boxer 526DX Specifications

General IconGeneral
BrandMertz
ModelBoxer 526DX
CategoryConstruction Equipment
LanguageEnglish