How to Drain Lawn Mower Oil

Lawn mowers Champion LM4626 / LM4630 / LM5130. Manual

How to Drain Lawn Mower Oil

Product specifications are subject to change without notice.

The Champion range is constantly expanding with new models. Champion products are characterized by an ergonomic design that provides ease of use, thoughtful design, high power and performance. Due to changes in technical specifications, the contents of the manual may not fully correspond to the purchased tool. The manufacturer reserves the right to make changes to the design of individual components and parts that do not impair the quality of the product, without prior notice. Keep this in mind when reading the instruction manual.

Intended use

The mower is controlled by a rear-facing operator. The engine rotates the cutting knife, which is located under the mower body. The knife lifts the grass and mows it. The cutting height can be adjusted to give the lawn the desired appearance. The cut grass is either collected in a grass container attached to the back, or, as with some mower models, can be reused to feed the lawn. Reuse of cut grass is called “mulching”.

Non-self-propelled models require pushing forces from the operator to move the mower. Self-propelled models have a rear-wheel drive system to facilitate mowing operations. The lawn mower is intended for lawn care, for mowing grass on lawns with a flat surface, in compliance with all requirements of the product instruction manual. The maximum height of the mowed grass should be no more than 20 cm. Any other use outside this framework is considered not to comply with the regulation. Any damage or injuries of any kind resulting from this is the responsibility of the user who is working with the tool, not the supplier and manufacturer.

Attention:Using the mower for any other purpose not covered by this manual violates the terms of warranty service and terminates the warranty obligations of the supplier. The manufacturer and supplier are not liable for damage resulting from improper use of the mower.

Attention!It is forbidden to use the mower as a drive device for another working tool or tool kit.

General safety precautions

Design lawn mowers Champion provides safety and reliability in operation, subject to all requirements of the manufacturer’s instructions. Read and read this carefully. “Guide” before using the trimmer. Know what to do in an emergency. Otherwise, it may result in personal injury or equipment damage. Pay particular attention to information preceded by the following headings:

Warning!Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

Caution!Indicates a hazardous situation which, if not avoided, could result in moderate injury.

Attention!Indicates the likelihood of equipment damage if the product instructions are not followed.

Everyone working with a lawn mower for the first time should be instructed by the seller or specialist how to properly handle the device. Minors are not allowed to work on the lawn mower. With the exception of persons over 16 years of age who are trained under the supervision of an experienced specialist. When working, do not allow children, unauthorized persons and animals to be present in the work area. A safe working area should be at least 15 meters. The user of the lawnmower is responsible for the possibility of a hazard that threatens other persons or their property!

The lawnmower is allowed to be handed over or given for temporary use (for rent) only to those people who are familiar with this model and are trained to use it. At the same time, an instruction manual must be attached! Rested, healthy people in good physical condition should work with the mower. Working with a lawn mower after using AL-KOgol, drugs that reduce the ability to respond, or drugs is not allowed!

The mower should only be used for mowing grass. Using the device for other purposes is not permitted, as this may result in accidents or damage to the device. Do not make any changes to the design of the mower, as this may cause an accident or damage to the device. Always wear safety glasses while working. Long hair must be removed under a hat. Wear clothing that covers the entire body and do not wear jewelry that might get caught in moving parts of the mower. Wear tight, safe, non-slip soles. Do not use any other cutting devices with this mower, other than those recommended by the manufacturer, because this can cause serious injury or damage the mechanism.

Before work, inspect the mowing area and remove any foreign objects that could damage the knife. Also remove all small debris that may be thrown away when mowing. Check the mower for loose parts (nuts, bolts, screws, etc.). Repair or replace defective parts before operation.

Caution:Do not put hands or feet under the knife during operation. Danger of serious injury.

Always turn off the engine when moving to a different site. Work with a working knife for mowing grass. If you hit a stone or other object, turn off the engine and check the condition of the knife and knife adapter. Do not use a damaged adapter, unbalanced or blunt knife for work. Only use the mower in daylight or in good artificial light.

Always maintain a stable body position during operation. Never make adjustments and adjustments while the mower engine is running, other than for maintenance work. Never work with a defective mechanism or if it is poorly adjusted. When working on a slope, always move across the slope. Keep the mower handles dry and clean during operation. After finishing work, clean the lawnmower of grass residues. Inspect and service the mower regularly.

Location of key parts and controls

Fig. 1.1. Lawn mower housing (deck) 2. Engine 3. Fuel tank cap 4. Frame 5. Engine stop lever with control cable. 6. Drive lever with control cable.

Fig. 2.1. Grass discharge chute 2. Oil filler neck with dipstick 3. Cutting height adjustment lever 4. Fuel pump button (primer) 5. Air filter 6. Muffler.

Lawn mower assembly

Remove the mower and accessories from the box. Check the mower for mechanical damage.

Set the handle to the working position and fix it with special clamps (A) (Fig. 3). Check installation of control cables; they should not be pinched. Install a grass catcher. To work with the possibility of lateral grass discharge, install a grass discharge chute (Fig. 4).

Set the handle to the working position and fix it with special nuts (Fig. 2). Check the installation of the cable to turn off the engine, it should not be pinched.

Install the starter handle in the guide bracket on the operating handle (Fig. 5).

Check before starting work

Engine oil

Motor oil is the main factor that affects the performance of the engine and determines its life.

Attention!The mower is delivered without engine oil. Before starting operation, the recommended oil must be poured into the crankcase.

Attention!It is recommended to use Champion oil for 4-stroke engines, or equivalent high-quality motor oil that meets the requirements of the requirements of class SF, SH according to API classification (oils classified as meeting the requirements of class SF, SH must have the appropriatemarking on the packaging). Do not use dirty engine oil, or engine oil for a two-stroke engine. Each time before starting the engine, you need to check the oil level in the crankcase by first installing the lawn mower on a flat surface. When choosing oil, refer to the table shown in the figure.

Attention!Untimely oil change, work on used oil, running at a constantly lowered oil level, working on oil that does not match the ambient temperature will lead to failure of the generator engine and cannot be repaired under warranty.

Attention!The first oil change is made after 8 hours of engine operation. Second oil change after 25 hours of engine operation. All subsequent oil changes are made every 50 hours of engine operation.

Refueling / checking engine oil level

To fill the engine with oil, mount the mower on a level surface. Remove the cover with the dipstick from the filler neck (Fig. 6). Fill in the required amount of oil. Put the probe in place.

Attention!Checking the oil level in the crankcase is done with the engine off.

  1. Place the mower on a level, horizontal surface. If the mower worked before, let the engine stand for about 5 minutes after stopping.
  2. Clean the area around the oil filler neck from debris.
  3. Remove the probe and wipe it with a clean rag. Install it in the neck and lock (tighten).
  4. Remove the dipstick again and check the oil level. It should reach the FULL mark (full).
  5. If necessary, add oil to the required level.
  6. Put the probe in place.

Attention!Before starting the engine, check whether the probe is installed correctly or not.


Use unleaded gasoline with an octane rating of 92. Never use old or contaminated gasoline or an oil-gasoline mixture. Avoid getting dirt or water in the fuel tank.

Attention!Engine failure due to the use of low-quality or old fuel, as well as fuel with an inappropriate octane rating, is not subject to warranty service.

Attention!Store fuel in containers specially designed for this purpose. It is forbidden to use canisters made of food-grade plastic.

Warning!Refueling is carried out with the engine turned off and in places with good ventilation. When working with fuel, it is forbidden to smoke and use open flame. Fuel spills are not allowed. Repeated or long-term contact of the skin with fuel and the inhalation of fuel vapors must be prevented. Child access to fuel is prohibited.

Do not fill the fuel tank completely. Pour gasoline into the fuel tank to a level approximately 25 mm below the top edge of the filler neck to leave room for thermal expansion of the fuel. After refueling, check that the filler cap is properly closed. The maximum fuel level is shown in Fig. 7.

Engine starting

Caution!After starting the engine, the knife will rotate.

Attention!Before starting the engine, engage the stop lever (5) Fig. 1 of the engine several times. Check that the engine stop cable moves freely and that the engine stop lever is working properly.

  1. Check the oil level in the crankcase and the fuel level in the fuel tank.
  2. Press the primer (4) Fig. 2 all the way three times. After each press of the primer, wait two seconds.Note:When starting a new engine for the first time, press the primer button five times.
  3. Make sure that the drive lever (6) Fig. 1 is in the off position.
  4. Stand behind the mower. Press and hold the engine stop lever with your left hand.
  5. With your right hand, slowly pull the starter cord by the handle until you feel resistance. Then lower the starter handle back and make a sharp jerk to start the engine. Slowly release the starter handle.
  6. To start driving, press the drive drive lever (6). During operation, levers (5) and (6) are held simultaneously.

Attention!Always strictly follow paragraph “5” to avoid dynamic impact on the starter parts and starter breakage.

Do not release the starter grip sharply from the upper position, otherwise the cord will be wound around the flywheel and the starter will break. Release the handle slowly to avoid damage to the starter. Failure to follow these instructions often leads to breakdown of the starter and is not subject to warranty service.

Lawn Mower Stop

To stop the mower, release the travel drive lever (6). The mower will stop, but the engine will work. To stop the engine, release the engine stop lever (5).

Attention!For safe operation, the drive system must be turned off immediately after releasing the drive lever. If the drive system does not turn off properly, then the mower must not be operated until the drive system has been repaired or adjusted properly.

Grass mowing height adjustment

Before starting work, adjust the required height for mowing the grass. To do this, depress the lever (A) Fig. 9, move and lock it in one of the required positions. Make sure that each wheel is mounted at the same mowing height.

Work on the slope

When working on a slope, be especially careful. Always move across the slope.

Attention! When working on slopes, the mower should not be tilted more than 10º to either side of the horizontal plane (Fig. 9).

Service Recommendations

All trimmer maintenance work, except for the items listed in this manual, must be performed at an authorized service center. Maintenance dates apply only to normal operating conditions. For prolonged daily use, these intervals should be shortened. Dates of maintenance are shown in the table.

Air filter

Warning!Never operate a lawnmower without an air filter, with a dirty or damaged air filter. Dust and dirt will enter the engine, causing it to break. Engine failure for this reason is not subject to warranty repairs. Keep the air filter clean.

To check, remove the air filter cover. Check the filter for damage. The foam rubber filter can be washed with warm, soapy water, squeezed and dried. A dirty paper air filter must only be replaced. Replace the air filter as necessary, but at least once a season.

Spark plug

For efficient operation of the engine, the spark plug must have an appropriate glow number, spark gap between the electrodes. The candle should not have external mechanical damage. Recommended spark plug for engine with overhead valve arrangement F7RTC or its analogues (O-LR12YC, RN6YC, BPR7ES, WR5DC).

Spark plug marking

F- 14x19x21mm (thread diameter / thread length / key size);7- The heat number;R- Has a resistor;TC. One side electrode made of copper.

To check or replace the spark plug:

  1. Disconnect the spark plug cap and remove dirt around the spark plug.
  2. Unscrew the spark plug with a candle wrench.Warning!Never unscrew the spark plug until the engine has completely cooled down. Risk of damage to the threaded part of the cylinder head.
  3. Check the spark plug. If the electrodes are worn out or the insulator is damaged, the spark plug must be replaced.
  4. Measure the gap between the electrodes of the candle with a special probe. The clearance should be 0.6-0.65 mm. (Fig. 10) When increasing or decreasing the required clearance, it is recommended to replace the spark plug, since adjusting the clearance can lead to a change in the quality of spark formation.

After one hundred hours of operation, it is recommended to replace the spark plug.

Warning!When installing a new spark plug, to ensure the required tightening, wrap the spark plug with a 1/2 turn key after fitting the bead of the spark plug to the sealing washer.

After installing the used spark plug, wrap the spark plug with a 1/4 wrench to ensure the required tightening. 1/8 of the turnover after the bead of the candle is planted on the sealing washer.

Warning!If the spark plug is not properly wrapped, it becomes very hot during engine operation and may cause damage. A large tightening torque of the spark plug can damage the threads of the cylinder head.

Cleaning the mower housing

Remnants of mowed grass always remain on the inside of the lawn mower body. After finishing work, it is necessary to remove the remains of mowed grass, otherwise, after drying, they interfere with the normal operation of the cutting knife. Perform all cleaning work on the mower body on an idle engine.

Attention!After the engine stops, the cutting knife can rotate for a short time.

Cutting knife service

Fig. Eleven1. Knife 2. Knife washer 3. Knife mounting adapter 4. Knife mounting bolt

During operation, the knife may become dull and get damaged when it hits hard objects. Therefore, it is necessary to check the knife (1) for wear or damage, such as cracks. Periodically check the bolt (4) that secures the knife. Check the proper tightening of the bolt. When the knife hits a solid object, it is necessary to stop the engine and check the knife adapter (3) and the knife itself for damage.

Attention!Do not use a blunt or bent knife. It is forbidden to work with a knife having different blade lengths. Do not operate the mower if the knife mount adapter is damaged. Do not work with an unbalanced knife. Failure to do so may result in engine failure and cannot be repaired under warranty.

During operation, all damaged or worn parts must be replaced with original ones recommended by the manufacturer.

Attention!Failure of the mower due to the use of non-original consumables not recommended or recommended by the manufacturer is not subject to warranty service.

For safe operation, replace the knife every two years. The knife should always have a well-sharpened blade. A worn or dull knife blade can cause the tips of the blade to become yellow after mowing.

Adjustment of valves

Attention!Valve clearance must be checked every 100 hours of operation.

Valve clearance.Inlet valve:0.1 ± 0.02 mm (cold engine).Exhaust valve:0.15 ± 0.02 mm (cold engine).

Engine oil change

Warm the engine for 3-5 minutes before changing the oil. This will provide a quick and complete drain of oil. Prepare a special container for used oil.

Two ways to change the oil:

  1. Tilt the lawn mower and drain the oil through the filler neck.
  2. On many engines, the oil drain plug (A) is located on the crankcase below the engine, under the knife (Fig. 12).

To change the oil, remove the knife, place a special container under the mower. Unscrew the plug and drain the oil. Tighten the cork and replace the knife. Fill with clean oil to the required level. After changing the oil, start the engine and let it run for 30-40 seconds, then turn off and check the engine for oil leakage.


All trimmer maintenance work, except for the items listed in this manual, must be performed at an authorized service center. Maintenance dates apply only to normal operating conditions. For prolonged daily use, these intervals should be shortened. Dates of maintenance are shown in the table.