Instructions by

monstershop

T-Mech 15T Log Splitter & Rain Cover

Instructions for assembling, installing, and using the T-Mech 15T Log Splitter, a powerful tool designed to split logs quickly and efficiently. It includes safety advice, maintenance tips, and troubleshooting guidance to ensure safe and reliable operation.

Product Information

T-Mech 15T Log Splitter & Rain Cover

The T-MECH 15T Vertical Log Splitter is a robust and efficient machine built to handle demanding wood-splitting tasks with ease. Delivering an impressive 15 tonnes of splitting force, it features a reliable 7HP gasoline 4-stroke motor and supports both vertical and horizontal operation for maximum versatility. With a 52cm splitting length, 2-speed valve, and quick 10-second cycle time, this log splitter is designed for fast, effective performance. Its durable construction, 10" pneumatic tyres, and compact frame ensure easy maneuverability and storage, making it ideal for both professional and heavy-duty domestic use.

SKU: 216124
Dimensions: in Vertical Position = L x W x H = 103cm x 47.6cm x 145.6cm
Weight: 116kgs
Materials: Q235 Low Carbon Steel, 45# Steel

Product Specifications
Ram Force	12T
Hydraulic Cylinder Size (bore x stroke)	3" x 19"
Gear Pump	2.1 GPM
Maximum Pressure	3500PSI
Cycle Time	16s
Hydraulic Tank Capacity	3.1
Max. Log opening	52cm
Height in horizontal position:	112.4cm
Length in horizontal position:	142.9cm
Width:	47.6cm

GPSR Information

Manufacturer: Monster Group UK Limited, Monster House 19-23 Alan Farnaby Way, Industrial Estate Sheriff Hutton, York YO60 6PG
Person Responsible: Rana Harvey, Monster Group UK Limited, Monster House 19-23 Alan Farnaby Way, Industrial Estate Sheriff Hutton, York YO60 6PG, England, +441347878880

Manufacturer: Monster Group BV, Van Heemskerckweg 28A & B, Venlo 5928LL Netherlands +441347878880
Person Responsible: Rana Harvey, Monster Group BV, Van Heemskerckweg 28A & B, Venlo 5928LL, Netherlands, +44134787888

Safety Advice

Ensure you have read and fully understood the instruction manual and safety advice before using this product.

Only operate the log splitter outdoors in a well-ventilated, dry area, away from flammable materials and ignition sources.

Ensure the machine is placed on a level, stable surface and is securely positioned before operation to prevent tip-over risks.

Always operate the log splitter using both hands on the designated control handles and keep all parts of the body, including hands and feet, clear of the log, wedge, and all moving parts during use to reduce the risk of crushing injuries.

Always wear appropriate PPE including safety gloves, steel-toe boots, eye protection, and a face shield when operating the splitter.

Keep bystanders, children, and animals at a safe distance during operation; never allow untrained individuals to operate the machine.

Only split logs that are within the manufacturer’s specified size and weight limits. Do not attempt to split overly large, irregular, or frozen logs that may behave unpredictably.

Ensure all logs are properly positioned and stable before initiating the splitting process to prevent sudden movement or ejection of the log.

Never touch leaking hydraulic fluid with bare skin—high-pressure fluid can penetrate the skin and cause serious injury. Always wear protective gloves when inspecting or replacing hydraulic parts.

If a hydraulic leak is detected, immediately shut down the machine and relieve system pressure before carrying out any repairs.

Do not attempt to modify, tamper with, or bypass the control system or safety mechanisms under any circumstances.

For electric models, only use outdoor-rated, grounded power cables. Ensure cables are undamaged and routed away from the work area to prevent entanglement or electrical shock.

Keep all electrical components dry and do not operate the machine in wet conditions or during rain to avoid electric shock.

For fuel-powered models, refuel only when the engine is completely cool, and always use approved fuel containers stored away from heat and open flames.

Never smoke or use the product near an open flame or spark-producing equipment.

Do not operate the log splitter if you are tired, under the influence of drugs or alcohol, or taking medication that may impair alertness.

Do not transport or move the splitter while it is operating or while the hydraulic system is under pressure.

Engine Parts

1) Fuel Tank

Stores unleaded gasoline. The fuel cap is vented to prevent vacuum formation inside the tank.

2) Fuel Valve

Controls the fuel supply between the fuel tank and the carburettor.

"ON" position: Fuel flows to the carburettor
"OFF" position: Fuel flow is stopped

Always turn the valve OFF when transporting, storing, or servicing the engine.

3) Choke Lever

Regulates the air-fuel mixture for cold starting.

"CLOSED" position: Reduces air intake for easier starting
"OPEN" position: Used after the engine warms up

4) Recoil Starter

Used to start the engine manually. Pull the handle firmly and smoothly to crank the engine.

5) Air Cleaner Assembly

Filters dust and debris from the intake air to prevent engine wear. Regular cleaning or replacement is essential for performance.

6) Engine Switch

Controls the ignition circuit.

“ON” position: Allows the engine to start and run.
“OFF” position: Stops the engine.

7) Throttle Lever

Controls engine speed by adjusting the throttle opening. Move the lever to increase or decrease RPM depending on the application.

8) Muffler Assembly

Reduces exhaust noise and directs gases safely away from the operator.
Keep the muffler and exhaust outlet free of obstructions.

Please note the surface becomes extremely hot during operation.

9) Spark Plug

Ignites the air–fuel mixture inside the cylinder. Check the plug regularly for wear, carbon build-up, or improper gap.

10) Oil Filler and Dipstick

Used to fill and check engine oil level. Always clean the area around the cap before removing it to prevent contamination.

11) Oil Drain Plug

Located at the base of the crankcase. Used for draining old oil during scheduled maintenance.

12) Governor Control Lever

Automatically maintains constant engine speed under varying load conditions. Do not alter or remove the governor system.

13) Cylinder Head and Cooling Fins

Dissipate heat from the combustion chamber. Keep the fins clean to maintain proper cooling efficiency.

14) Exhaust Outlet
Directs combustion gases away from the operator and machine. Ensure it is never blocked or directed toward flammable materials.

15) Carburettor
Mixes fuel and air in the correct ratio for combustion. Requires periodic inspection and cleaning for stable operation.

Components

Exploded Diagram

Main Engine Parts

1. Lock & Handle Assembly

1\. Fix the handle (#22) on the end of the beam with bolt (#23), spring washer (#9) and washer (#10).

2. Wheel & Cylinder Assembly

1\. Adjust the beam to a horizontal position and fix it with lock system.

2\. Assemble the cylinder and wedge protector to the beam by using Hex Bolt (#21), Spring Washer (#9) , Flat Washer (#10) and Nut (#11).

3\. Assemble 2pcs wheels (#39) to the main body by using wheel shaft (#48), Flat Washer (#29) and Nut (#37).

3. Log Guide & Engine Assembly

1\. Assemble the Left and Right Log Guide (#2 & #14) by using Nuts (#8), Spring Washer (#9) and Flat Washer (#10).

2\. Assemble the Log guard (#4) by using Nuts (#5), Flat Washer (#6) and Bolt (#7).

4. Hydraulic Hoses Assembly

1. Connect the high-pressure hydraulic hose (#63). Attach one end to the control valve inlet (pre-installed at the factory) and the other end to the engine gear pump.
2. Connect the second hydraulic hose (#62). Attach one end to the control valve outlet (also pre-installed at the factory) and the other end to the oil tank.
3. Install the oil pipe onto the gear pump and secure it with clamp (#43).
4. Connect the control valve to the cylinder using the oil pipe (#61).

5. Protection Cover Assembly

1. Assemble the Protection Cover (#83) by using Nuts (#37), Flat Washer (#29) and Hex Bolt (#73).

6. Engine Oil

CAUTION:

Engine oil quality is crucial for performance and engine life.
Do not use oil mixed with additives or two-stroke gasoline — this can cause insufficient lubrication and serious engine damage.

To Check and Fill Engine Oil:

1. Place the machine on a level surface and make sure the engine is stopped.
2. Remove the dipstick and wipe it clean.
3. Insert the dipstick into the oil filler neck without screwing it in, then remove it to check the oil level.
4. If the oil is below the lower level mark, add recommended SAE 10W–30 (API SF or higher) engine oil until it reaches the upper level mark.
5. Reinstall the dipstick securely.

7. Air Cleaner

CAUTION: Never run the engine without an air cleaner - dust and debris can cause serious internal wear.

Types of Air Cleaners:

a) Double-Core Type (Fig.8)

1. Remove the air cleaner housing cover.
2. Check the filter element for dirt or damage. Clean or replace it if necessary.

b) Dust-Collecting Type (Fig.9)

1. Remove the dust-collecting hood and check both the hood and filter element.
2. Clean or replace if dirty or damaged.
3. Remove any dust found inside the dust-collecting hood.

c) Semi-Dry Type (Fig.10)

1. Remove the housing and inspect the filter for dirt or debris.
2. Clean or replace if necessary.

d) Oil-Bath Type (Fig.11)

1. Remove the air cleaner housing and filter core.
2. Check the oil level and oil quality in the cleaner base.
3. If low or dirty, replace the oil with engine oil (same grade as engine) up to the oil level mark.

8. Fuel and Fuel Tank

CAUTION:

Always use unleaded gasoline with an octane rating of 86 or higher.
Never use fuel/oil mixtures or stale, contaminated fuel.
Avoid fuels containing more than 10% ethanol or 5% methanol — these can damage fuel system components.

To Check and Fill Fuel:

1. Remove the fuel filler cap.
2. Ensure fuel is clean and free of water or debris.
3. Fill up to the upper fuel level mark (do not overfill).
4. Replace the cap securely.

Fuel Tank Capacity: 2.5 litres for 196F / 3.6 litres for 168F engines.

Tip: If you hear knocking or pinging during steady operation, switch to a different brand of gasoline. Continuous knocking can damage the engine.

9. Fuel Safety Warnings

Gasoline is highly flammable and explosive under certain conditions.

Refuel only in a well-ventilated area with the engine stopped.

Do not smoke or allow flames or sparks nearby while refuelling.

Avoid overfilling the tank - leave some space in the filler neck for fuel expansion.

After refuelling, tighten the fuel cap securely.

Wipe away any spilled fuel before starting the engine.

Avoid prolonged contact with fuel or inhaling fumes.

Keep fuel out of reach of children.

10. Starting the Engine

1. Turn on the fuel supply
\- Set the fuel cock to the ON position.(See Fig. 13)
2. Close the choke
\- Move the choke lever to the CLOSE position.(See Fig. 14)

> Note: If the engine is already warm, closing the choke is not necessary.
3. Set the throttle
Move the throttle lever slightly to the left (toward higher speed).(See Fig. 15)
4. Start the engine
\- Turn the engine switch to the ON position.(See Fig. 16)
\- Pull the starter handle slowly until you feel resistance, then pull quickly and firmly.(See Fig. 16)
5. Release the starter handle carefully
> CAUTION:Do not let the handle snap back. Guide it back gently to prevent damage to the engine or starter mechanism.

11. Engine Operation

1. Warm up the engine
Allow the engine to run for a short period before use. Then move the choke lever to the OPEN position. (See Fig. 17)
2. Set operating speed
Adjust the throttle lever to achieve the desired engine speed for your operation. (See Fig. 18)

12. Safety Warnings

Engine Oil Alarm:

This engine is equipped with an Oil Alert System that stops the engine automatically if the oil level becomes too low.

Running the engine without enough oil can cause severe damage.

> CAUTION:
>
> If the engine fails to start, check the oil level first before inspecting other components.
>
> Always maintain proper oil levels to ensure reliable operation.

Operating on Highlands:

When operating above 1,830 m (6,000 ft), air density decreases, making the standard fuel mixture too rich.
This can cause poor performance and increased fuel consumption.

To adjust for high altitude operation:

1. Have a qualified technician replace the carburettor's main jet with a smaller one.
2. Adjust the idle screw as needed.

> CAUTION:
>
> Power output decreases about 3.5% for every 305 m (1,000 ft) increase in altitude.
>
> Engines modified for high altitude may run too lean and overheat at lower altitudes.
> Ask your dealer to return the carburettor to standard settings if you move to a lower altitude.

13. Stopping the Engine

In an emergency, turn the engine switch to OFF immediately.

For normal shutdown:

1. Move the throttle lever to the LOW SPEED position. (See Fig. 19)
2. Turn the engine switch to OFF. (See Fig. 20)
3. Set the fuel cock to the OFF position. (See Fig. 21)

14. Exhaust Control System

The engine emits carbon monoxide (CO), nitrogen oxides (NOₓ), and hydrocarbons (HC).
Proper maintenance and fuel use help minimize these emissions.

To keep emissions within standard levels:

1) Maintenance

Follow the Maintenance Schedule regularly (see Maintenance Section).
Service more frequently under heavy load, dusty, or high-temperature conditions.

2) Replacement of Parts

Use only genuine or equivalent-quality replacement parts.
Using inferior components can reduce emission control effectiveness.

3) Modifying the Exhaust System

> WARNING: Do not tamper with or modify the air intake or exhaust systems.
> Alterations can increase emissions, violate legal regulations, and damage the engine.

4) Problems Affecting Exhaust Emissions

Contact your dealer if you notice any of the following:

Difficulty starting or stalling
Unstable idle
Excessive smoke or fuel consumption
Poor ignition or backfiring
Engine knocking or pinging

15.

The throttle and choke valve levers both have holes designed for attaching optional steel control wires.
Figures 2, 3, and 4 illustrate how to install either a solid (stiff) steel wire or a flexible (meshed) steel wire for remote operation.

If using a flexible steel wire, a return spring must be installed to ensure proper throttle return.

If needed, you can slightly loosen the damping nut on the throttle valve lever when connecting the throttle for remote operation. This allows smoother control movement.

Remote-Controlled Throttle Installation (Figure 3):

1. Attach the steel wire to the throttle valve lever using the steel wire fixer and 4 mm screw.
2. If using a flexible wire, install the return spring to assist the throttle in returning to idle.
3. If the throttle movement feels tight, loosen the damping nut on the throttle valve lever slightly.

Remote-Controlled Choke Installation (Figure 4):

1. Attach the steel wire to the choke lever using the steel wire fixer and 4 mm screw.
2. Ensure the wire moves freely and can fully open and close the choke valve.

16.

1\) Load the log securely onto the beam and position it firmly against the wedge before operating.

2\) Serious accidents can happen when other people are allowed inside the work zone. Keep the work zone clear of all other persons while operating the control valve to prevent serious injury.

3\) Use both hands to push the control valve handle forward to initiate the log splitting action.

4\) Use both hands to pull the control valve handle backward to return the wedge to its original position.

5\) Never place any part of your body near the wedge or beam slide during operation; the wedge poses a severe crush hazard and can cut through skin or break bones.

6\) Remove all split wood and debris from the work zone immediately after each operation to maintain a safe workspace.

7\) Do not wear loose clothing during operation, as it may become entangled in moving parts.

8\) Operate the log splitter only during daylight hours or in a well-lit environment to ensure clear visibility and safe operation.

17. Machine Maintenance

Always place the log splitter in maintenance mode before performing any servicing by turning off the engine and moving the control valve handle forward and backward to relieve hydraulic pressure.

After any maintenance work, make certain that all guards, shields, and safety features are securely reinstalled before using the machine.

Inspect all hoses before each use for exposed wire mesh or leaks and replace any worn or damaged hoses before starting the engine.

Inspect all hydraulic fittings before each use for cracks or leaks and replace any damaged fittings before starting the engine.

Check all nuts and bolts before each use to ensure they are secure and tightened correctly.

Apply grease to the beam surface before each use to maintain smooth performance.

Remove all debris from moving parts before each use to prevent damage and ensure safe operation.

18. Engine Maintenance

Maintenance Schedule:

To keep the engine in good condition, follow the recommended maintenance schedule in the table below.

19. Replacing Engine Oil

General Safety:

Always stop the engine before performing maintenance.
If servicing is required while the engine is running, ensure proper ventilation.\

Engine exhaust contains toxic carbon monoxide, which can cause serious injury or death if inhaled in an enclosed area.

To Drain and Replace Oil:

1. Start the engine and let it run for a few minutes to warm up. This helps the oil drain more easily.
2. Stop the engine and place an oil pan under the drain plug.
3. Remove the oil filler cap and drain plug (see Fig. 22).
4. Allow all oil to drain completely, then reinstall and tighten the drain plug securely.
5. Refill with the recommended SAE 10W–30 oil up to the upper mark on the dipstick.
Crankcase oil capacity: 0.6 L
Reduction gear oil capacity (if equipped): 0.5 L
6. Reinstall the dipstick securely.

> NOTE: Dispose of used oil properly. Take it to an authorized recycling facility — do not pour oil into drains or onto the ground.

20. Servicing the Air Cleaner

A clean air filter ensures proper engine performance and protects internal parts from dust.

WARNING:
Never run the engine without the air cleaner. Dust and dirt can cause rapid engine wear or failure.
Do not use gasoline or flammable solvents to clean the air filter.

a) Double-Core Type (Fig.23)

1. Remove the wing nut and take off the air cleaner cover.
2. Check the two filter elements (foam and paper). Replace if damaged.
3. Wash the foam filter in warm, soapy water or a non-flammable cleaning solvent. Rinse and let dry completely.
4. Lightly coat the foam filter with clean engine oil, then squeeze out excess oil.
5. Tap the paper filter gently to remove dust. Replace if heavily soiled.
6. Reassemble and tighten the wing nut securely.

b) Dust-Collecting Type (Fig.24)

1. Remove the wing nut and open the air cleaner housing.
2. Remove and inspect both filter elements for damage.
3. Clean the foam element as above.
4. Blow compressed air (under 30 psi) from inside to outside of the paper filter to remove dust. Avoid cleaning with a brush, as brushing may force dust into the core fibre. Replace if necessary.
5. To clean the dust-collecting cup, remove and wash parts with water and then dry. Ensure the dust-collecting cover is correctly reinstalled to prevent dust from entering the air inlet.
6. Reassemble securely.

c) Semi-Dry Type (Fig.25)

1. Remove the wing nut and air cleaner cover. Take out the filter element.
2. Clean with warm, soapy water or a non-flammable cleaning solvent. Rinse and dry completely.
3. Lightly oil the element and squeeze out excess oil.
4. Reinstall all components properly.

d) Oil-Bath Type (Fig.26)

1. Remove the wing nut and housing. Take out the filter element.
2. Clean the element with warm, soapy water or solvent, then dry.
3. Remove any dirt or debris from the cleaner base.
4. Refill the oil bath to the marked oil level using clean engine oil.
5. Reassemble and secure the air cleaner.

21. Cleaning the Fuel Deposit Cup

1. Turn the fuel valve to OFF.
2. Remove the deposit cup and O-ring.
3. Wash both parts in a non-flammable cleaning solvent, then dry completely.
4. Reinstall and check for leaks.
5. Turn the fuel valve ON to verify proper operation.

> WARNING:
>
> Gasoline and its vapours are highly flammable. Keep sparks, flames, and cigarettes away.
> Always ensure the area is well ventilated.
> * After reinstalling, check for leaks before starting the engine.

22. Spark Plug Maintenance

Use the recommended spark plug type: F7TC / F6RTC

To Inspect and Clean:

1. Remove the spark plug cap and use a wrench to take out the plug.
2. Inspect for carbon build-up or wear. Clean the spark plug with a wire brush. If the insulator is damaged, replace the spark plug instead.
3. Check the gap using a feeler gauge - it should be 0.7–0.8 mm (Fig.29).
4. Reinstall the plug by hand, then tighten:

* New plug: Tighten an additional ½ turn after the gasket contacts the seat.

* Reused plug: Tighten an additional ⅛ to ¼ turn after the gasket contacts the seat.

> CAUTION:
>
> Tighten securely — loose plugs can overheat and damage the engine.
>
> Use only recommended plug types to ensure proper ignition and longevity.

23. Spark Arrestor (Optional)

The spark arrestor prevents sparks from exiting the muffler. Clean it every 100 hours of operation.

To Service:

1. Allow the muffler to cool completely.
2. Remove the screws securing the arrestor and muffler cover.
3. Clean any carbon deposits from the arrestor screen with a brush.
4. Reinstall all parts in reverse order of removing them.

> CAUTION:
>
> * The muffler stays very hot during and after operation. Do not touch until it has completely cooled.
>
> - Do not damage the mesh screen.
> - Replace any damaged spark arrestor before use.

24. Carburettor Idle Adjustment

To ensure smooth idling:

1. Warm up the engine to normal operating temperature.
2. Turn the throttle fixing screw to achieve a stable idle speed of 1700 ± 150 RPM.

> Adjust gradually while listening to engine response to avoid stalling or racing.

25. Transport

Turn the fuel switch OFF before transporting the engine.
Allow the engine to cool completely before moving to prevent burns or fire hazards.

> CAUTION: Keep the engine upright during transport to prevent fuel spillage. Spilled fuel or vapours can ignite and cause a fire.

26. Storage

If the engine will not be used for an extended period, store it properly to prevent corrosion and ensure easy restarting later.
Always store in a clean, dry, and dust-free location.

1. Drain and replace the engine oil. (See Fig. 32)
2. Remove the spark plug, and pour about 5–10 ml of clean engine oil into the spark plug hole.
Pull the recoil starter slowly several times to distribute the oil inside the cylinder, then reinstall the spark plug.
3. Gently pull the recoil starter until you feel resistance.
Align the arrow on the starter sleeve with the hole in the starter (Fig. 33). This closes the intake and exhaust valves to prevent rust.
4. Cover the engine to keep out dust and moisture.

27. Removal from Storage

Before restarting after storage, follow the service schedule below:

WARNING:

Fuel is highly flammable. Always keep flames and sparks away during maintenance.
Dispose of old fuel responsibly - take it to an approved recycling centre.
Never pour fuel or oil into the ground or drains.

28.

Important: Before carrying out any maintenance or repair work on the log splitter, all residual energy in the pressurised hydraulic system must be released.

Hydraulic fluid can remain highly pressurised even when the engine is off. Escaping pressurised fluid may penetrate the skin and cause severe injury.

To safely release residual hydraulic pressure:

1. Shut off the engine.
2. Move the control valve back and forth, from one end of travel to the other, at least four times.
3. Hold the valve at each end of travel for three seconds.

WARNING – Skin Injection Hazard
High-pressure hydraulic fluid can penetrate the skin and cause serious injury, including possible amputation.

Ensure all fittings are secure before applying pressure.

Always relieve system pressure before servicing.

Never check for leaks with your hand. Use a piece of cardboard or wood instead.

If hydraulic fluid is injected into the skin, seek immediate surgical treatment.

29. Machine Troubleshooting

30. Engine Difficult to Start

31. Low Engine Power Output