MTD DUERR 424/LCD/22 - User Manual

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Summary

Log Splitter User Information

Operational Guidelines

Recommended practices and actions to avoid for safe and effective log splitter use.

Warranty Conditions

Conditions Voiding Warranty

Specific user actions or failures that will invalidate the log splitter's warranty.

Safe Operation Rules

Danger and Safety Warnings

Critical warnings and hazard identification for safe operation.

Operator Training and Preparation

Essential training and preparation steps before using the splitter.

Operating and Maintaining Your Splitter

Operation Procedures

Instructions for safe and effective log splitting.

Maintenance Guidelines

Routine care and upkeep for the log splitter.

Towing Safety and Procedures

Guidelines for safely towing the log splitter.

Log Splitter Assembly

Unpacking and Parts Check

Steps for unpacking and verifying all log splitter components.

Assembly Tools and Materials

List of necessary tools and materials for assembling the log splitter.

Attaching Tongue and Reservoir

Procedure for connecting the tongue assembly to the reservoir tank.

Installing the Hitch Assembly

Instructions for attaching the hitch to the log splitter tongue.

Connecting Wedge and Cylinder Assembly

Steps for attaching the wedge, beam, and cylinder assembly.

Attaching Engine and Pump Assembly

Procedure for mounting the engine and pump assembly.

Attaching Fenders and Control Handle

Steps for installing fenders and connecting the control handle.

Initial Assembly and Operation Setup

Attaching Hydraulic Hoses

Guidance on connecting the hydraulic system's hoses.

Initial Preparation and Starting

Pre-operation checks, fluid filling, and engine starting procedures.

Log Splitter Operation

Stopping the Engine and Safe Use

Procedures for stopping the engine and safely operating the splitter.

Operating the Splitter

Step-by-step instructions for splitting logs using the splitter.

Pre-Starting Checks

Essential checks to perform before each use of the log splitter.

Starting the Engine

Detailed guide on how to start the log splitter's engine.

Adjustment and Maintenance

Adjusting Log Dislodger and Wedge

Adjustments for the log dislodger and splitting wedge for optimal performance.

Carburetor and General Maintenance

Carburetor adjustments and routine maintenance tasks.

Hydraulic System Maintenance

Fluid, Filter, and Hose Care

Maintenance of hydraulic fluid, filter, hoses, and beam/wedge.

Engine and Coupler Maintenance

Care for the engine and the flexible pump coupler.

Tire Care and Storage

Tire Pressure and Installation

Guidelines for tire pressure and safe installation to the rim.

Off-Season Storage Procedures

Instructions for proper preparation and storage of the log splitter.

Log Splitter Operating Principles

Pump and Valve Operation

Explanation of the log splitter's pump and directional valve functions.

Operational Problems Overview

Introduction to common operational issues and troubleshooting resources.

Limited Warranty Information

Warranty Terms and Conditions

Details the limited warranty coverage, duration, and exclusions for the log splitter.

This document is a user manual for the DUERR Log Splitter, specifically models 424/LCD/22 (part number 249-623-003) and Model 623. It provides comprehensive information on assembly, safe operation, maintenance, troubleshooting, and warranty details.

Function Description:

The DUERR Log Splitter is a power equipment designed for splitting wood. It utilizes a hydraulic system with a two-stage pump and a directional valve to extend and retract a splitting wedge, applying force to split logs lengthwise. The device can be operated in both vertical and horizontal positions, making it versatile for different log sizes and user preferences. The two-stage pump is designed to provide rapid cylinder movement under low load conditions (using both large and small gear sections) and then switch to the smaller gear section for higher pressure when encountering resistance during the actual splitting operation.

Important Technical Specifications:

Model Numbers: 424/LCD/22, Model 623
Part Number: 249-623-003
Operating Pressure: 3000 to 3200 PSI
Maximum Log Length: 24 inches
Hydraulic Fluid Type: Dexron II Automatic Transmission Fluid
Hydraulic System Capacity: Approximately 7.6 gallons
Hydraulic Filter: 10 micron (part number 723-0405)
Pump Coupler: Flexible nylon "spider" insert (part number 717-0891)
Engine: Internal combustion engine (specific model not detailed, but requires separate manual for service and oil information). Shipped without gasoline or oil.
Tire Pressure: Maximum 30 p.s.i. (or manufacturer's recommended pressure on sidewall)
Warranty: 18 months limited warranty for non-commercial use, 90 days for commercial use. Pump and cylinder are covered for 1 year, and the valve for 3 years, from the purchase date, regardless of usage type.

Usage Features:

Assembly: The manual provides detailed instructions for assembling the log splitter, including attaching the tongue, hitch, wedge/beam/cylinder assembly, beam support/latch bracket, engine/pump assembly, fenders, and control handle. All hardware is pre-positioned on the parts for convenience.
Initial Preparation: Before first use, the engine must be serviced with gasoline and oil (refer to separate engine manual). The beam area where the splitting wedge slides must be lubricated with engine oil (not grease). The reservoir tank must be filled to the top with Dexron II automatic transmission fluid, and the pump primed by pulling the recoil starter approximately 10 times with the spark plug disconnected.
Operation Positions: The log splitter can be used in vertical position for heavy logs or horizontal position for general use. The beam hinge bracket needs to be adjusted for vertical operation.
Control Handle: The control handle has three positions: FORWARD (moves wedge toward end plate), NEUTRAL (wedge stops), and REVERSE (wedge returns). The FORWARD position requires the handle to be held, returning to neutral upon release. The REVERSE position locks in place and automatically returns to neutral when the stroke is complete.
Safety: Emphasizes operating on level ground, standing behind the reservoir tank, keeping hands and feet clear of moving parts, not splitting logs sideways, and never operating while intoxicated or fatigued. Blocking wheels during operation is required.
Log Dislodger: Adjustable for shorter logs (less than 24") to reduce cycle time.
Towing: Requires checking federal, local, and state vehicle requirements (e.g., taillights) and ensuring secure attachment to the tow vehicle with safety chains.

Maintenance Features:

Fluid Level Check: Hydraulic fluid level should be checked regularly and maintained 1.5" to 2" from the top of the tank. Low fluid levels will damage the pump and void the warranty.
Fluid Change: Hydraulic fluid should be changed every 100 hours of operation. The reservoir tank and hoses should be flushed with kerosene during repairs involving the tank, pump, or valve.
Hydraulic Filter Change: The 10 micron hydraulic filter should be changed every 50 hours.
Beam Lubrication: Both sides of the beam where the splitting wedge slides must be lubricated with engine oil (not grease) before each use.
Splitting Wedge Adjustment: Periodically adjust bolts on the slide plate to eliminate excess space between the wedge plate and the beam, ensuring free movement without being too loose or too tight.
Pump Coupler Inspection/Replacement: The flexible nylon "spider" insert between the pump and engine shaft must be inspected regularly for deterioration. Replacement is necessary if deteriorated to prevent damage to pump and engine bearings. Proper clearance (0.010" to 0.060") between coupling halves is critical.
Engine Maintenance: Refer to the separate engine manual for specific instructions on oil changes, air cleaner service (every 25 hours, or more frequently in dusty conditions), spark plug cleaning/replacement (once a season), and carburetor adjustment.
General Checks: Periodically check all nuts, bolts, screws, hose clamps, and hydraulic fittings for tightness. Ensure safety guards and shields are in place.
Overheating: If hydraulic fluid becomes excessively hot, stop the unit and allow it to cool.
Off-Season Storage: Drain the fuel tank and run the engine until fuel lines and carburetor are empty. Drain crankcase oil and refill with fresh oil. Protect the inside of the engine by pouring 0.5 oz of engine oil into the cylinder. Clean the unit thoroughly and wipe with an oiled rag to prevent rust. The tongue can be removed for compact storage.