The Type of Oil for an Electric Log Splitter

Written by amy rodriguez
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The Type of Oil for an Electric Log Splitter
Electric log splitters rapidly cut large amounts of wood. (Hemera Technologies/AbleStock.com/Getty Images)

Burning logs for warmth during the colder months is still a viable home heating option for many households. However, chopping wood into reasonably sized logs takes a lot of strength and time. Electric log splitters provide a fast mechanism for cutting wood, especially if the homeowner requires large timber volumes for future wood-burning use. Although the splitter is electrically driven, the cutting mechanism requires oil for pressurising the splitter's hydraulics.

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Electric Log Splitter Function

An electric log splitter resembles a common sawhorse. A pushing mechanism resides on the splitter's left side. Across the splitter's length is a splitting wedge, mimicking a triangle. A user places a log along the splitter's length. The pusher presses against the log's end, compressing it against the splitting wedge's triangular point. This wedge cuts into the log and splits it into two pieces.

Oil Type

Electric log splitters require hydraulic oil with a 10W (Winter) weight rating. This hydraulic oil type provides lubrication for gears and other mechanical parts during extreme cold and heat, effectively protecting parts from wearing down. In addition, the electric log splitter uses this hydraulic oil for pressurising the hydraulic system. As a user activates the electrical motor, the hydraulic system builds pressure with the hydraulic oil. Once pressurised, the hydraulic system initiates the pusher's motion for cutting the log.

Bleeding

Electric log splitters have a bleed screw assembly. A user must open the bleed screw before operating the splitter. The bleed screw allows air to escape out of the hydraulic system. Air that remains trapped within the system can damage the splitter. The enclosed space, housing the trapped air and hydraulic oil, will become overly pressurised, possibly damaging the hydraulic components. However, the bleed screw should remain tightened during storage or moving the splitter to a different area.

Oil Replacement

Hydraulic oil requires replacement after 150 hours of use. Over time, the oil can produce sediment within the hydraulic system. This sediment eventually settles on the hydraulic components, possibly damaging them with deposit layers. Periodic oil replacement keeps the internal parts bathed in pure oil, prolonging the splitter's lifespan.

Troubleshooting

Low amounts of hydraulic oil within the splitter's assembly will affect overall functioning. A humming electrical motor with no pusher movement usually signifies that the hydraulic oil level is low. The hydraulic system cannot attain the needed pressure for moving the pusher against the log. Verify the hydraulic oil's level by checking the dipstick. There should be measured graduations on the dipstick indicating a maximum and minimum oil level.

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