Log splitter symptoms

You won't be splitting tree stumps when your log splitter's engine won't start, the hydraulic cylinder won't extend the wedge or the hydraulic pump leaks. Our symptoms and DIY troubleshooting steps can help you get your log splitter working again. You can order repair parts by keying the part numbers or the log splitter's model number in the search field. Follow the step-by-step instructions in the log splitter repair guides to install replacement parts and repair the log splitter.

log splitter

Symptoms common to all log splitters

Choose a symptom to see related log splitter repairs.

Main causes: broken pump coupler, clogged hydraulic fluid filter, bad hydraulic control valve, broken hydraulic pump, bad hydraulic cylinder
Main cause: worn hydraulic valve seals around the actuator rod
Main causes: leaky head gasket, damaged sump gasket, leaky oil drain plug, damaged fuel line, bad carburetor seals
Main causes: dirty carburetor, stale fuel, bad spark plug, broken recoil starter
Main cause: worn hydraulic cylinder seals
Main causes: dirty carburetor, bad spark plug, clogged air filter, stale fuel
Main cause: worn hydraulic pump seals

Repair guides common to all log splitters

These step-by-step repair guides will help you safely fix what’s broken on your log splitter.

March 1, 2013
By Lyle Weischwill
How to replace a log splitter carburetor

The carburetor mixes air and gas before the fuel mix goes to the engine. If the engine won't start and the spark plug is getting spark, the carburetor is likely the problem.

Repair difficulty
Time required
 30 minutes or less
March 1, 2013
By Lyle Weischwill
How to replace a log splitter recoil starter

The recoil starter spins the engine on the log splitter when you pull the starter rope, and the rope retracts when released. If the recoil starter assembly is broken, follow the steps in this repair guide to replace it.

Repair difficulty
Time required
 15 minutes or less
March 1, 2013
By Lyle Weischwill
How to replace a log splitter fuel line

The fuel line carries the fuel supply from the gas tank to the carburetor. If the fuel line is cracked and leaking, replace it.

Repair difficulty
Time required
 30 minutes or less

Articles and videos common to all log splitters

Use the advice and tips in these articles to get the most out of your log splitter.

November 1, 2015

How to maintain the hydraulic system in a log splitter

By Sears PartsDirect staff

See how to properly maintain the hydraulic system in your log splitter.

June 1, 2015

Log splitter common questions

By Sears PartsDirect staff

Learn more about your log splitter with these frequently asked questions.

June 1, 2015

How to change the hydraulic fluid in a log splitter

By Sears PartsDirect staff

Learn how to change the hydraulic fluid in your log splitter.