Introduction

The Yardmax Gas Log Splitter YU3566 is a powerful and efficient tool designed for both residential and commercial wood splitting needs. Featuring a robust 35-ton splitting capacity, it is powered by a reliable 10.5 HP Briggs & Stratton engine, allowing for horizontal and vertical splitting. This model includes a patent-pending 4-way wedge for enhanced productivity and can handle logs up to 26 inches in length. Manufactured by Yardmax, the YU3566 is priced at approximately $1,899, making it an excellent investment for anyone looking to streamline their firewood preparation process.

Parts Diagram

				YU3566 PARTS LIST
No.	Description	Qty	No.	Description	Qty	No.	Description	Qty
1	Pin35x59	1	40	Spring Washer 8	4	79-1	Clamp 25-38	2
2	Bridge Pin	1	41	BoltM8x20	6	80-1	Suction Hose	1
3	Hose Clamp 40	1	42	Washer8	8	81	Return Oil Filter	1
4	Hex SocketHead Cap ScrewM6x20	1	43	BoltM12x90	2	82	O-Ring D81x3.1	1
5	Right-Angle Fitting	2	44	Cotter Pin 4x50	2	83	Flange of Filter	1
6	Welded Hose	1	45	Beam Pivot Pin 20x110	1	84	Washer6	6
7	High Pressure Supply Hose	1	46	Bridge Pin	1	85	BoltM6x16	6
8	Right-Angle Fitting 1	1	47	Elastic Spider Block	1	86	Safety Chain	2
9	Low Pressure Return Hose	1	48	Gear Pump	1	87	BoltM12x80	2
10	Right-Angle Fitting 2	1	49	Outlet Connector of Pump	1	88	2" Ball Coupler Hitch	1
11	Control Valve	1	so	Retainer Slide	2	89	Pipe Plug	1
12	Straight Fitting	1	51	Discontinued	N/A	90	Discontinued	N/A
13	BoltM12x35	8	52	Key3x25	1	91	Latch Rod	1
14	Flat Washer 12	24	53	Gear Pump Connector Left	1	92	Circlip 34	1
15	Log Cradle-Left	1	54	Gear Pump Connector Right	1	93	Support Leg Weldment	1
16	Lock Nut M12	14	55	ScrewM8x10	2	94	Discontinued	N/A
17	BoltM10x35	4	56	Bolt 5/16-24UNF	4	95	BoltM10x85	1
18	Washer10	18	57	Key1/4x50	1	96	Washer6	7
19-1	Discontinued	N/A	58	Pivot Bracket	1	97	Nut M10	1
20	Discontinued	N/A	59	Spring Washer 5	4	98	Big Washer 30	1
21	Cross Recessed HeadScrew M12x55	8	60	Manual Tube	1	99	Discontinued	N/A
22	Lock Nut M14	1	61	ScrewMSx10	4	100	Discontinued	N/A
23	Bolt 14x95	1	62	Cover of Pump Bracket	1	101	Flat Washer 20	2
24	Washer14	4	63	Pump Bracket	1	102	Anti-Dust Washer	2
25	Wedge	1	64	NutM12	4	103	Washer10	8
26	Log Spinner	1	65	Spring Washer 12	4	104	Discontinued	N/A
27	Circlip 29	1	66	Tire	2	105	Hose Clamp 45	1
28	Beam Weldment	1	67	LocatingPlunger oflogSpinner	1	106	Safety Clasp	2
29-1	Guide Slide	2	68	Log Cradle-Right	1	107	ScrewM6x8	2
30	Log Stripper Weldment	1	69	Washers	4	108	Tow Bar	1
31	Cylinder	1	70	Engine	1	109	Logo Decal on Cylinder	2
32	Beam Lock Bracket	1	71	Dipstick	1
33	Spring Washer 10	14	72	Wheel Washer 22	2 OPTIONAL LOGTABLE
34 BoltM10x25		6	73	Dust Cap	2	No.	Description	Qty
35 Latch Rod		1	74	Axle NutM22	2	1*	BoltM10x25	4
36 Pressure Spring		1	75	Tank Assembly	1	2*	Log Table	1
37 Pin6x40		2	76	Washer20	1	3*	Flat Washer 10	4
38 Discontinued		N/A	77	Drain Plug	1	4*	Spring Washer 10	4

Specifications

Splitting Force*	25ton	28ton	30ton	35ton
Log Capacity	26"	26"	26"	26.5"
Engine	Briggs & Stratton		Briggs & Stratton
Displacement	208cc		306cc
Gross Torque@ 2600rpm	9.5 ft-lb		14.5ft-lb
Fuel Capacity	0.80Gallon		1.40Gallon
Engine Oil Capacity	0.16Gallon		0.29Gallon
Starting System	Recoil
Control Valve	Auto Return with Adjustable Detent

Pump Size	14GPM	14GPM	17GPM	17GPM
Hydraulic Cylinder Bore	4"	4.5"	4.5"	5"
Hydraulic Cylinder Stroke	24"	24"	24"	24"
Hydraulic Rod Diameter	1.75"	1.75"	1.75"	2"
Cylinder Cycle Time*	9.7 seconds	13.2 seconds	10.9 seconds	12.8 seconds
Hydraulic Capacity	4.2Gallon	4.5Gallon	4.5Gallon	6.0Gallon
Hydraulic Oil Included	Pre-filled with premium hydraulic fluid
Replacement Filters	Built-in, Sealed, Return Filter, Suction Screen
Hoses	High pressure w/wire braid; Coil-wrapped
Beam	Heavy duty U-shape formed construction
Wedge Size	7.50"
Wedge Style	2-way
Rear Wheels	4.80-8, DOT Approved 16" O.D. Road Tires
Hitch Coupler	2" Ball with Safety Chains
Safety Chains	Standard
Max Towing Speed	45mph
Hitch Handle	Standard
HorizontalNerticalSplitting	Standard
Open Operating Zone	Standard
Log Cradle	Standard
Log Table	Optional
Weight (lbs)	517.0lbs	530.5 lbs	572.0lbs	636.0lbs
Dimensions (LxWxH) Inches	100"x48"x37"

UNPACKING THE CONTAINER

Use the screwdriver and hammer to open all the side locks. Remove all the polywood plates. Remove all the loose parts on the bottom pal lets. Use scissors or a knife to cut all the straps. (See Rture la}

CONTENTS SUPPLIED

Your YARDMAX log splitter comes partially assembled and contains the following:

WARNING: Heavy lifting required. Some of the components in these assembly instructions are heavy and can't be lifted by one person safely, Please plan to assemble this product when another person can be available to help.

Beam with Cylinder
Reservoir with Engine
Beam Lock Bracket
Pivot Bracket
Log Cradle (Left)
Log Cradle (Right)
Wheels
Tow Bar
Manual Tube
Operator's Manual and Engine Manual
Tools for Spark plug Assembly (YU2566 and YU2866 only)
Engine Oil
Log Table (Optional)

KNOW YOUR MACHINE

FEATURES AND CONTROLS

Log Spinner Foot Plate

The foot plate holds the log in place while the wedge splits the log.
The foot plate allows the operator to easily spin a log in preparation for splitting and enables the log to rotate when splitting, instead of causing unnecessary stress on the beam.
It is easy to replace when the grip teeth are damaged. No repair welding is required.

2-Position Log Cradle

The log cradles are designed to catch the log after it is split.
2-position function:
- The first position centers logs on the beam.
- The second position provides a flat surface and worktable on which to place logs.

Split Control Handle

The control handle is used to move the wedge up and down to split logs.
The control handle has three positions: Forward, Neutral, and Reverse. Refer to the "Operation" section for instructions.

Manual Tube

Keep manuals safely in the tube.

Beam Lock Bracket

The beam lock bracket is used to secure the beam in the horizontal position.

Lifting Handle

The lifting handle is included for easy transition from horizontal to vertical.

2" Ball Hitch Coupler

The coupler hitch is at the end of the tow bar and attaches to a tow ball for transportation purposes.

Log Stripper

The log stripper is designed to remove any partially split wood from the wedge. This may occur while splitting large diameter wood or freshly cut wood.

Beam Assembly

The U-beam structural design is significantly stronger than a typical I-beam design.

Log Table (Optional)

A log table/platform can be mounted on the log cradle directly.

Engine On/Off Switch

The engine switch has two positions. OFF - engine will not start or run. ON - engine will start and run.

Recoil Starter Handle

The handle is used to start the engine.

Fuel Shut-Off Valve

The fuel shut - off has two position. CLOSED - use this position to service, transport, or store the unit.)) OPEN- use this position to run the unit.

Choke Control

The choke control is used to choke the carburetor and assist in starting the engine.
The choke control slides between the CHOKE CLOSED andCHOKE OPEN positions.

Throttle Control

The throttle control regulates the speed of the engine and will shut off the engine when it is moved to the STOP position.
The throttle control moves between FAST, SLOW, and STOP positions.

Description

The Yardmax Gas Log Splitter YU3566 features a sturdy steel frame that ensures durability and stability during operation. The 208cc OHV engine provides ample power to drive the hydraulic system, which delivers up to 35 tons of splitting force. This makes it capable of handling tough logs with ease. The automatic return valve in the hydraulic system allows for quick and efficient operation, reducing the time spent on each log. The splitter also includes a log cradle to keep the logs in place during splitting, enhancing safety and reducing the risk of accidents.

Setup Guide

To set up and operate the Yardmax Gas Log Splitter YU3566,

Start by assembling the unit according to the manufacturer's instructions. Ensure all bolts and screws are securely tightened.
Fill the engine with the recommended oil and fuel before starting. Start the engine and let it warm up for a few minutes.
Place a log on the splitting wedge and engage the hydraulic system by pulling the lever.
The splitter will then apply pressure to split the log. After each use, clean the splitter and store it in a dry place.

MAINTENANCE

Inspect and maintain the log splitter before each use. If the log splitter has been used previously, it must be inspected and maintained before each subsequent use.
Always shut off the engine and relieve system pressure before inspecting, cleaning, adjusting, or repairing the splitter. Relieve system pressure by moving the split control lever back and forth several times.
Remove debris from the engine, muffler, and moving parts. Debris on a hot engine can be a fire hazard. Clean debris and chaff from the engine cylinder head, cylinder head fins, blower housing rotating screen, and muffler areas.

WARNING

Avoid contact with hot muff/er.

CAUTION
Debris on moving parts can cause excess wear. Clear debris from the slide beam, wedge, and end plate.

OIL DRAINING

Use a drain pan to aid in the removal of all used oil and particles.
Remove oil drain plug to drain oil from the hydraulic transmission system. Examine oil for metal chips as a precaution to future problems.
After oil has been completely drained from the machine, reinstall drain plug.

ADD HYDRAULIC OIL TO OIL TANK

Make sure the log splitter is on a flat, level surface.
Remove the oil dipstick from the oil tank.
Never remove the hydraulic oil dipstick when the engine is running or hot. Hot oil can escape causing severe burns. Allow the log splitter to cool completely before removing the hydraulic oil dipstick.
The recommended hydraulic oil type:
10WAW32 ASLEH-150 15032
Hydraulic oil level will read half way to low on the dipstick. There is always hydraulic oil in the cylinder, which will not read on the dipstick.
CAUTION: Completely install the dipstick when checking oil Lil level.
Start the engine and use the control valve handle to extend and retract the wedge five times to remove air from the high pressure lines.
With the wedge retracted and engine off, check the oil level again. Fill if necessary.
Cycle the cylinder again until it has a constant speed. This indicates that all air has been expelled.

STORAGE

Follow the instructions below forstoring your log splitter between uses.

Retract the wedge completely to keep the rod protected from corrosion.
Allow the machine to cool 5 minutes before storing.
Clear the debris from the beam, wedge, and end plate. Use a damp cloth to clear exterior surfaces of the engine and log splitter. Use a soft bristle brush to remove excess dirt and oil. Use an air compressor (25 PSI) to clear dirt and small debris. Wipe the beam, wedge, and all metal parts with an oil rag to prevent corrosion.
WARNING: Never spray the engine or log splitter with a pressure washer. Water can contaminate the fuel system and can enter the engine and damage the engine.
Refer to the engine manual for proper engine storage instructions. Gasoline can become stale when stored over 30 days. Stale fuel can cause acid and gum deposits that form in the fuel system or on carburetor parts.
WARNING: For engine fuel that is stored less than 30 days, add fuel stabilizer to keep the fuel fresh. Turn the fuel valve lever to the off position. If fuel is stored over 30 days, then drain the fuel tank as stated in the engine manual.
WARNING: Always drain fuel from the tank in an outdoor, wellventilated area.
WARNING: Stay away from sources of heat, flame, or sparks while handling fuel.
WARNING: Clean up fuel spills immediately.
Store the log splitter in a location away from corrosive materials, sources of heat, open flames, sparks, or pilot lights.
WARNING: Never store the log splitter inside where there is a source of heat or an open flame, spark, or pilot light, such as a water heater, space heater, furnace, clothes dryer, or other gas appliance. EVEN IF the log splitter's fuel tank is empty, residual gasoline vapors could ignite.
WARNING: Never store the log splitter near fertilizer or any other corrosive material.
Store gasoline in a cool, dry place in a UL listed tightly sealed container.
WARNING: Gasoline vapors can ignite if they collect inside an enclosure and explosion can result.

Yardmax Gas Log Splitter YU3566 Troubleshooting

Problem	Cause	Remedy
Wedge movement is slow or erratic	Air in thehydraulic oil system Debris lodgedin beam guides Low hydraulic oil Clogged hydraulic filer	Purge air byextending and retracting the wedge several timesuntil motion is smooth Clear debrisfrom beam Check oillevel and addas needed Replace hydraulic filter
Oil leak from cylinder	Faulty cylinder rod seal Scored or bent cylinder rod Loose hydraulic fitting Faulty combination washerseal on cylinder hydraulic fitting	Contact customer service Contact customer service Tighten hydraulic fitting Contact customer service
Oil leak from hose connection	Loose hose clamp or hydraulic fitting	Tighten hose clamp or hydraulic fitting
Wedge willnot extend or retract	Faulty control valve Faulty hydraulic pump Low hydraulic oil	Contact customer service Contact customer service Check oil leveland add as needed
Wedge does not auto- return	Low hydraulic oil Faulty control valve	Check oil level and add as needed Contact customer service
Excessive bouncing while towing	Underinflated	Inflate tires to proper pressure
Control valve handle does not return to neutral when released from forward position	Hydraulic oil too cold Hydraulic oil too thick Hydraulic oil contaminated Faulty control valve	Warm up engine Replace hydraulic fluid Replace hydraulic fluid Contact customer service
Engine will not start	Engine switch in OFF position Fuel shut-off valveinOFFposition Fuel tank empty Spark plug disconnected Faulty spark plug Choke leverin wrong position Faulty engine Not enough oil in engine	Move switch to ON position Move valve to ON position Fill fuel tank withfuel Connect spark plug Replace spark plug Adjust choke lever position Contact customer service Add the recommended oil amount 0.16gallons

Pros & Cons

Pros

High Splitting Force: Capable of splitting logs up to 35 tons of force.
Durable Construction: Sturdy steel frame for long-lasting use.
Efficient Operation: Automatic return valve for quick log splitting.
Easy Assembly: Clear instructions for assembly and setup.
Safety Features: Log cradle for safe log placement.

Cons

Weight and Portability: Heavy and may require additional help for transport.
Noise Level: Can be loud during operation.
Maintenance Requirements: Regular maintenance is needed to ensure optimal performance.
Cost: Higher price point compared to some other models.

Customer Reviews

Customers have generally praised the Yardmax Gas Log Splitter YU3566 for its powerful performance and ease of use. Many have noted that it significantly reduces the time and effort required to split logs compared to manual methods or smaller electric splitters. However, some users have mentioned that it can be heavy and difficult to move around. Common complaints include the noise level during operation and the need for regular maintenance to keep it running smoothly.

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