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North Star M1108D - User Manual

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1
TM
M1108D
ITEM NUMBER: 1108, 1109, 1114
SERIAL NUMBER: _____________________
Owner’s Manual
Instructions for Assembly, Testing, Operation, Servicing,
& Storage
22, 30, 37-Ton Log Splitters: Outdoor hydraulic powered
machine that splits wood logs.
WARNING
READ and UNDERSTAND this manual completely before using log splitter.
All operators of this equipment must read and completely understand all safety information, operating instructions,
maintenance and storage instructions. Failure to properly operate and maintain the log splitter could result in serious injury
to the operator and bystanders from moving parts that can crush or cut, flying objects, burns, fire or explosion, escaping
high pressure hydraulic fluid, or carbon monoxide poisoning in particular, be aware of the following hazards.
Crush and Cut Hazards
Moving parts can crush and cut hands and fingers. Keep hands clear of endplate, wedge, logs, and log strippers while
splitting.
High Pressure Hydraulic Fluid Hazards
High fluid pressures and temperatures are developed in hydraulic log splitters. Hydraulic fluid escaping through even a
pin-size hole opening can puncture skin and cause severe blood poisoning. Inspect hydraulic system regularly for
possible leaks. Never check for leaks with your hand while the system is pressurized. Seek medical attention
immediately if injured by escaping fluid.
Fire Hazards
If your log splitter is intended for use near an ignitable forest, brush, or grassy covered land, the engine exhaust should
be equipped with a spark arrestor. See the “Specifications” section of this manual to determine if your splitter already
has a spark arrestor. If not equipped, call Northstar Customer Service for ordering information.
Keep a fire extinguisher with you that is rated for ordinary combustibles and flammable liquids.
STOP!
SAVE BOLTS FROM PACKAGING: Some packaging bolts are used to assemble the log splitter.
ADD OIL TO ENGINE BEFORE USING: Engine is shipped without
oil. DO NOT start log splitter without first adding oil.
ADD HYDRAULIC OIL: Your log splitter was shipped without
hydraulic oil. Refer to Periodic Maintenance section of this
manual for instructions on filling the hydraulic reservoir
INSPECT COMPONENTS: Closely inspect to make sure no components are missing or damaged.
See Initial Unpacking & Set-up for instructions and for whom to contact to report missing or damaged parts.
Any Questions, Comments, Problems or Parts Orders
Call NorthStar Customer Service 1-800-270-0810

Questions and Answers

  • J
    Jane WhiteheadJul 30, 2025
    Why is my North Star M1108D not splitting wood properly?
    • M
      Mary ReeseJul 30, 2025
      If your North Star Log Splitter is struggling to split wood, several factors could be at play. It may be due to insufficient oil to pump, so check the oil level in the reservoir. Air in the oil could also be the reason; inspect the oil level and look for leaks in the suction line. Another potential cause is excessive pump inlet vacuum; examine the pump inlet hose for any blockages or kinks. The control valve setting might be too low; in that case, adjust the control valve with a pressure gauge. Finally, internal issues such as an internal control valve leak or an internally damaged cylinder could be the cause; return the control valve or cylinder for authorized repair.
  • J
    Jamie ChristianAug 5, 2025
    What to do if my North Star M1108D wedge is moving too slowly?
    • S
      sarah56Aug 5, 2025
      If the wedge speed on your North Star Log Splitter is slow, here are some potential causes and solutions: First, check the oil level in the reservoir, as insufficient oil to pump could be the issue. Also, check for air in the oil by inspecting the oil level and looking for leaks in the suction line. Additionally, excessive pump inlet vacuum can cause this problem; check the pump inlet hose for blockage or kinks. If these steps don't resolve the issue, there may be damage to the control valve or an internal control valve leak, or an internally damaged cylinder, requiring you to return the control valve or cylinder for authorized repair.
  • S
    shawn75Aug 11, 2025
    How to fix a North Star M1108D when the wedge won't move?
    • D
      David Martinez PhDAug 11, 2025
      If the wedge on your North Star Log Splitter isn't moving, consider these possible causes: A- Insufficient oil to pump, so check the oil level in the reservoir. D- Blocked hydraulic lines, in this case flush and clean the splitter hydraulic system. H- A damaged control valve or J- a damaged cylinder piston, requiring you to return the control valve or cylinder for authorized repair.
  • A
    Amy MillerAug 17, 2025
    Why does my North Star M1108D Log Splitter engine bog down when splitting wood?
    • B
      Benjamin CooperAug 17, 2025
      If your North Star Log Splitter engine bogs down during splitting, it may be due to a high control valve setting. Adjust the control valve with a pressure gauge.
  • L
    lynn56Aug 23, 2025
    What to do if North Star M1108D engine stalls under low load?
    • C
      Caitlyn BerryAug 23, 2025
      If your North Star Log Splitter engine stalls under a low load condition, it could be due to blocked hydraulic lines or a blocked control valve. To resolve this, flush and clean the splitter hydraulic system.

Summary

Safety Label Locations

Initial Set-Up

Step Three: Hydraulic Oil Filling and Air Removal

Process for filling the hydraulic reservoir, including vital safety precautions.

Moving and Towing to the Job Site

Towing Attachment and Safety Chains

Details on connecting the splitter to a vehicle hitch and securing it with safety chains.

Before Each Use-Inspection; Maintenance

Hydraulic System and Oil Level Inspection

Detailed checks for hydraulic hoses, fittings, pump, cylinder, and oil level.

Before Each Use - Fueling

Safe Fueling Procedures and Storage

Comprehensive safety guidelines for fueling, including handling spills and storing gasoline.

Before Each Use - Work Site Selection & Set-Up

Fire and Carbon Monoxide Safety Precautions

Crucial precautions against fire hazards and carbon monoxide poisoning.

Splitting Operation

General Safety Rules and Operator Position

Essential safety guidelines covering manual, age, intended use, modifications, and operator position.

Protective Gear and Splitting Position Setup

Requirements for personal protective equipment and setting the splitter to horizontal or vertical.

Safe Log Loading Procedures

Proper techniques for loading logs, including orientation, handling, and safety notes for vertical loading.

Wedge Control and Stuck Log Resolution

Instructions for operating the wedge and procedures to safely remove a stuck log.

Storage

Periodic Maintenance

Scheduled Maintenance: Oil Changes and Inspections

Details on performing routine engine maintenance and changing hydraulic oil annually or every 100 hours.

Troubleshooting

Common Problems and Their Solutions

A guide to diagnosing and resolving common operational issues like wedge movement or engine performance.

Specifications

Model Technical Data and Dimensions

Provides detailed specifications for different log splitter models, including dimensions and capacities.

Summary of Important Safety Information

Fueling and Work Site Safety Guidelines

Critical safety rules for fueling the splitter and selecting a safe operating environment.

Safe Operation, Loading, and Unloading

Key safety practices for general operation, loading logs, and unloading split wood.

Assembly Instructions

North Star M1108D Specifications

General IconGeneral
BrandNorth Star
ModelM1108D
CategoryLog Splitter
LanguageEnglish

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