Landworks GUO079 User manual

Electric Powered Hydraulic Log Splitter
Operator’s Manual
REV 1.2
WARNING:
Read carefully and understand all INSTRUCTIONS before operating. Failure to follow the safety rules
and other basic safety precautions may result in serious personal injury.
Save these instructions in a safe place and on hand so that they can be read when required. Keep
these instructions to assist in future servicing.

1
INDEX
TECHNICAL SPECIFICATIONS ---------------------------------------------------------------------------------------------------------- 1
SAFETY DEFINITIONS ---------------------------------------------------------------------------------------------------------------------- 2
SAFETY SYMBOLS ----------------------------------------------------------------------------------------------------------------------- 2
SAFETY GUIDELINES ------------------------------------------------------------------------------------------------------------------- 4
ELECTRICAL SAFETY ---------------------------------------------------------------------------------------------------------------------
CONTROLS AND FEATURES ----------------------------------------------------------------------------------------------------------- 5
PARTS LIST ----------------------------------------------------------------------------------------------------------------------------------- 6
EXPANDED DRAWINGS ------------------------------------------------------------------------------------------------------------------ 9
MAINTENANCE AND STORAGE ------------------------------------------------------------------------------------------------------ 11
TROUBLE SHOOTING -------------------------------------------------------------------------------------------------------------------- 11
TECHNICAL SPECIFICATIONS
Maximum Exerted Splitting Force
Electromotor Specifications
Starter Type
Cycle Time
Gear Pump
Control Valve
Hydraulic Cylinder Stroke Length
Max Log Length
Max Log Diameter
Hydraulic Fluid Type
Hydraulic Fluid Tank Capacity
Wheel Diameter
Wire length
Net Weight
Overall Dimensions(L x W x H)
14 (US tons)
120V, 60Hz, 15A, 1700RPM
Electric Start
16.5sec.
10GPM / 38LPM
Detent (auto-return)
16"
20.5"
16"
AW32, AW46
2.1Gal. (8L)
8"
70.9"
126LB
47.09" x 14.02" x 33.98"（Assembled）
5

22
SYMBOL MEANING
Read Operator’s Manual in its entirety.To reduce the risk of injury, user must read
and understand operator’s manual before using this product.
Eye and Ear Protection. Always wear safety goggles or safety glasses with side
shields, and as necessary a full face-shield as well as full ear protection when
operating this product.
Footwear. Always wear safety shoes or work boots when operating the machine.
Sandals and slippers or open toe shoes or any type are strongly discouraged.
Gloves. Always wear nonslip, heavy-duty protective gloves when operating
this product.
Safety Alert. Precautions that involve your safety.
Risk of Fire. Do not touch the log splitter by wet hands or wet cloth to avoid the
electrical short circuit and fire. Do not cover the motor to avoid excessive
temperature and cause fire.
Skin Injection Hazard. Hydraulic oil under high pressure can penetrate your clothes
skin. Make sure all fittings are fully seated and tightly secured before applying pressure.
Relieve system pressure before servicing.
Always keep hands away from the wedge and the ram.
Moving parts can crush or cut.
SAFETY DEFINITIONS
The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols, and their explanations,
deserve your careful attention and review. The safety warnings do not by themselves eliminate any danger. The instructions or
warnings they give are not substitutes for proper accident prevention measures and care while using the product.
SAFETY SYMBOLS
Some of the following symbols are used on this product. Please study them and learn their meanings. Proper interpretation of
these symbols will help you to operate the product in a safe and responsible manner.

3
SYMBOL MANING
Always keep feet away from the wedge and the ram. Moving parts can crush
or cut.
Hot Surface. To reduce the risk of injury or damage, avoid contact with any hot
surface.
Open Flame alert. The power cord is extremely flammable. Keep the splitter away
from open flames, sparks, pilot lights, heat, and other potential ignition sources.
Hold logs on sides when loading. Keep hands and feet away from cylinder,
wedge, and partially split logs.
Never place hands or any part of the body between a log and any part of the
log splitter.
Do not split logs against the grain. Split logs end to end in the direction of the
grain only.
Clearance. Keep all objects including others at least 10 feet (3m) from this
machine.
Only one person should operate the log splitter and load the logs.
Never operate on an incline. Make sure the splitter is on a level surface. Block
tires and ensure support leg is secure to prevent unintended movement of the
log splitter during operation.

44
DANGER indicates a hazardous situation which, if not avoided,will result in serious injury and possibly death.
WARNING indicates a potential hazardous situation which, if not avoided, could result in serious injury or death.
CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE indicates information considered important, but not hazard-related (e.g., messages relating to property
damaged).
SAFETY GUIDELINES
Cancer and Reproductive Harm – www.P65Warnings.ca.gov
Moving parts can entangle hands, feet, hair, clothing and/or accessories. Traumatic amputation or severe laceration can result.
Keep hands and feet clear moving parts. Tie up long hair and remove jewelry before operating the device. Operate equipment
only fully assembled and with guards in place.
DO NOT wear loose-fitting clothing, dangling drawstrings or items that could become caught.
Operation of this equipment may create sparks that can start fires around dry vegetation.
Spark arrestor may be required. The operator should contact local fire agencies for laws or regulations relating to fire preven-
tion requirements.
Crush Hazard
Wedge can cut through skin and break bones and in extreme cases amputate limbs and digits. Keep all limbs away from
wedge and endplate at all times.
Skin Injection Hazard. High pressure hydraulic oil can break skin and cause sever injury.
Make sure all fittings are seated firmly and tightly secured before applying pressure. Relieve system of pressure before
servicing.
Parts of the hydraulic circuit (cylinder, pump, valve-body, hoses) can become very hot during operation.
This product IS NOT intended to to be towed behind a vehicle of any sort. The handle and wheels of the product are intended
for the sole purpose of easily moving the log splitter on your work site. Any modification or changes to allow moving of this
product by any other means other than by hand will render all warranties null and void.
Improper treatment or use of the log splitter can damage it, shorten its life and void your warranty. Use the log splitter only for
intended uses.
Operate only on level surfaces.
DO NOT expose log splitter to excessive moisture, dust, or dirt. Cover with a tarp or store in a shed when not in use.
DO NOT allow any material to block the cooling vents.
DO NOT use product if you observe electromotor if:
– Equipment sparks, smokes or flames from the motor
– Equipment vibrates excessively.
– Hydraulic Fluid is leaking from the unit

5
ELECTRICAL SAFETY
Power tool plugs must match the outlet. Never modify the plug in any way.
DO NOT use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of
electric shock.
Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges and refrigerators. There is an increased
risk of electric shock if your body is earthed or grounded.
DO NOT expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
DO NOT abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil,
sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use
reduces the risk of electric shock.
If operating a power tool in a damp location is unavoidable, use a ground fault circuit interrupter (GFCI) protected supply. Use
of a GFCI reduces the risk of electric shock.
CONTROLS AND FEATURES
1. Handle
2. Splitting Wedge
3. Support Leg – Supports log splitter while operating.
4. Splitting Support Beam---DO NOT PUNCTURE The hydraulic tank is inside.
5. Suction Hose – Draws hydraulic oil from the tank into the pump.
6. Hydraulic Pump – Pumps hydraulic oil through the system.
7. Electromotor – 120V.
8. 8" Wheels
9. Hydraulic cylinder base.
10. Hydraulic Oil Dipstick – Add or check Hydraulic oil level.
11. Hydraulic Cylinder – Converts hydraulic pressure into linear force.
12. Control Valve Handle – Controls the movement of the thrust plate.
13. Hydraulic Oil Inlet (High Pressure) Hose – Feeds hydraulic oil into the hydraulic cylinder.
14. Hydraulic Oil Return (Low Pressure) Hose – returns hydraulic oil back into the hydraulic tank.
14
13
6
2
5
1
3
4
9
8
10
11
12
7

6
PARTS LIST
Oil Dipstick
Hexagon Flange
Bolt M8x25mm
M6 Nut
Hexagon Flange
Bolt M8x50mm Bolt M6x35mm
M10x30mm
Hose Clamp
Outer hexagon bolt Hexagon Flange
Spring Washer
M8 Nut
R Pin
Supporting Bar
Primary Beam Kit
Eletromotor Bottom Plate
Control Valve
Handle
Hydraulic Cylidner
Wheels
Handle Oil Hose

Recommended tools
ASSEMBLY
7
Recommended tools: Needle nose pliers
Recommended tools: Ratchet Wrench (13mm)
Recommended tools: Ratchet Wrench (13mm)
Recommended tools: Ratchet Wrench (16mm)
STEP #1
STEP #2
STEP #3
STEP #4
M8 Nut,
Hexagon Flange Bolt M8x50mm
M8 Nut,
Hexagon Flange Bolt M8x50mm
Spring Washer φ8
Hexagon Flange Bolt M8x25mm
Tightening torque:45-60 N.m

8
STEP #5
STEP #6
STEP #7
STEP #8
STEP #9
STEP #10
M6 Nut,
Hexagon Flange Bolt M6x35mm,
Recommended tools: Slotted screwdriver
Recommended tools: Wrench (27mm 22mm)
Recommended tools: Wrench (27mm 22mm)
Recommended tools: Ratched wrench (10mm)
Add hydraulic fluid before first Use.
Hose connector recommend tightening torque:80 N.m
Hose connector recommend tightening torque:80 N.m

Part No.
1
3
4
5
6
7
8
9
10
11
Description
R Pin
8 " Wheel
Bottom Plate
Flange Nut M8
Hexagon Flange Bolt M8x50mm
Hydraulic Cylinder Kit
Oil Dipstick
Spring Washer
Outer hexagon bolt M10x 30mm
Hexagon Flange Bolt M8x25mm
Q’ty
2
2
1
8
4
1
1
4
4
4
Part No.
12
13
14
15
16
17
18
19
20
21
Description
Primary Beam Kit
Hexagon Flange Bolt M6x35mm
Handle
Flange Nut M6
Supporting Bar
Filter
Elastic Ring
Hose Clamp
Oil Hose
Electromotor
Q’ty
1
1
1
1
1
1
1
2
1
1
EXPLODED DRAWINGS
9
20
1
3
6
7
5
21
4
18
(5)
19
(5)
16
8 9 10
(6)
11 13 14 15 12
(19)
17

OPERATION
1. Read the Operator’s Manual completely before attempting to use this log splitter.
2. Do not allow anyone to operate your log splitter who has not read the Operator’s Manual or has not been instructed on the
safe use of the log splitter.
3. Never allow children or untrained adults to operate this machine.
4. Never leave the machine unattended with the electromotor running.
5. Never operate the machine when under the influence of alcohol, drugs or medication
6. Many accidents occur when more than one (1) person operates the log splitter. If a helper is assisting in loading logs to be
split, never actuate controls until helper is clear of the area.
7. Never allow anyone to ride on the machine during use or during operation.
8. Never transport cargo on the log splitter.
9. Always operate the log splitter with all safety equipment in place and all controls properly adjusted for safe operation.
10. High fluid pressures are contained in hydraulic log splitters.
Pressurized hydraulic fluid escaping through a pin hole opening can puncture skin and cause sever bleeding and result in
blood poisoning. Therefore, the following instructions should be heeded at all times.
– Be sure to confirm all hose connections and hose clamps are tight before each use. It is possible for connections to vibrate
loose over time
– Do not operate the unit with frayed, kinked, cracked or damaged hoses, fittings, or tubing.
– Stop the electromotor and relieve hydraulic system pressure before changing or adjusting fittings, hoses, tubing, or other
system components.
– Do not adjust the pressure settings of the pump or valve. The factory presets are tested for optimal system performance.
Tampering with or modifying these settings will render your product warranty nu,, and void.
– Do not check for leaks with your hand. Leaks can be detected by passing cardboard or wood over the suspected area. Look
for discoloration. If injured by escaping fluid, see a doctor at once. Serious infection or allergic reaction can develop if proper
medical treatment is not administered immediately.
11. Keep the operation zone and adjacent area clear for safe, secure footing.
12. Always keep hands and feet clear of moving parts.
13. Log splitters should be used only for splitting wood. Do not use for other purposes unless the manufacturer provides
attachments and instructions for such purposes.
14. When loading a ram-type log splitter, place your hands on the sides of the log, not the ends. Never place your hands or any
part of your body between a log and any part of the log splitter
15. Only split wood WITH the grain. NEVER split perpendicular to the grain.
16. On ram-type log splitters, never attempt to split more than one log at a time unless the ram has been fully retracted and a
second log is needed to complete the splitting of the first log.
17. On ram-type log splitters when the logs are not squared, the longest portion of the log should be rotated down and the
most squared end placed against the ram.
18. Use only your hand to operate the log splitter controls, never kick the handle with your feet.
Add Hydraulic Oil
DO NOT remove the hydraulic oil fill cap when the electromotor is running or hot. Hot oil can escape causing severe burns.
Always allow the log splitter to cool completely before removing the hydraulic oil cap.
High fluid pressure and temperatures are created in the hydraulic log splitters. Hydraulic fluid will escape through a pin-size
hole opening and can puncture skin.
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 escap-
ing fluid.
To check hydraulic oil level, insert the dipstick into fill neck until it stops. Remove and read level. Do not thread dipstick into fill
neck when checking oil.
When the outdoor temperature is below 32°F , Dexron III transmission fluid can be used.
1. Make sure the log splitter is on a flat, level surface.
2. Remove the dipstick from the oil tank.
3. Add 1.6gallon of hydraulic oil - AW32 / AW46
4. Check hydraulic oil level with oil dipstick. The oil level should be on the dipstick.
5. Tighten the dipstick.
6. Start electromotor.
7. Extend and retract the cylinder to purge air from the hydraulic system. Cylinder motion should be smooth and continuous.
8. Shut-off electromotor.
9. Hydraulic oil can be added appropriately when the cylinder thrust is insufficient.
For safety reasons, hydraulic oil is not included in the package.
10

MAINTENANCE AND STORAGE
1. Always shut off the power source while repairing or adjusting the splitter except as recommended by the manufacturer.
2. Clear debris from movable parts, but only when the power source is shut off.
3. Check to be sure all nuts and bolts are tight to assure the equipment is in safe working condition prior to each usage, and
periodically during usage. Electromotor vibration may shake screws and bolts loose during operation.
TROUBLE SHOOTING
Problem
Electromotor will not start.
Electromotor starts but runs loudly.
Wedge movement is slow or erratic.
Oil leak from cylinder.
Wedge will not extend or retract.
The hose is twisted after tightening.
The valve stem springs back multiple
times.
Cause
No electricity.
No plug in.
Power switch is OFF.
Something in the motor.
Motor cover interferes with vane.
Air in the hydraulic oil system.
Debris lodged in beam guides.
Low hydraulic oil.
Faulty cylinder rod seal.
Scored or bent cylinder rod.
Loose hydraulic fitting.
Hydraulic oil is not continuous.
Faulty combination washer seal
on cylinder hydraulic fitting.
Faulty control valve.
Faulty hydraulic pump.
Low hydraulic oil.
The hose rotates.
There is air in the hydraulic hoses.
Solution
Waiting for electricity.
Plug in.
Turn on the power switch.
Remove impurity.
Adjusting motor cover.
Purge air by extending and retracting the wedge
several times until motion is smooth.
Clear the filter net from beam.
Check oil level and add as needed.
Contact Customer Service.
Contact Customer Service.
Tighten hydraulic fitting.
Add hydraulic fluid.
Clear the filter net from beam.
Contact Customer Service.
Contact Customer Service.
Check oil level and add as needed.
Inflate tires to proper pressure. Refer to tire
Clamp the hose sleeve with pipe pliers and tighten
the joint with a wrench.
Unscrew oil dipstick to vent.
Size: 210x285mm REV 12/10/21 3.02.01.276157克双铜
11
Great Circle USA
Support Line: 1-866-493-0524
[email protected]
www.greatcircleus.com