ST1400E-ST 56 Volt Lithium-Ion Cordless Line Trimmer
Owner’s Manual




READ ALL INSTRUCTIONS!
READ OPERATOR’S MANUAL
Residual risk!
People with electronic devices, such as pacemakers, should consult their physician(s) before using this product. The operation of electrical equipment in close proximity to a heart pacemaker could cause interference or failure of the pacemaker.
SAFETY SYMBOL
The operation of any power tools can result in foreign objects being thrown into your eyes, which can result in severe eye damage. Before beginning power tool operation, always wear safety goggles or safety glasses with side shields and a full face shield when needed. We recommend a Wide Vision Safety Mask for use over eyeglasses or standard safety glasses with side shields.
| Safety Alert | To reduce the risk of injury, the user must read the operator’s manual. | ||
![]() | Wear Eye Protection-Always wear safety goggles or safety glasses with side shields and a full face shield when operating this product. | Wear Safety Footwear-Wear non-slip safety footwear when using this equipment. | |
| Wear Ear Protection-Always wear ear protection when operating this product. | ![]() | Wear Protective Gloves-Protect your hands with gloves when handling a blade or blade guard. | |
| Wear Head Protection-Wear an approved safety hard hat to protect your head. | Beware of blade thrust-Warn the operator of the danger of blade thrust. | ||
| Do not install ground-cutting blades. | Line diameter-The Diameter of the nylon cutting line | ||
| Cutting width-The Max. cutting width of line trimmer | Thrown objects can ricochet and result in personal injury or property damage. Ensure that other people and pets remain away from the brush cutter when it is in use. | ||
| Ensure that other people and pets remain at At least 15m away from the line trimmer when it is in use. | Do not use it in the rain or leave it outdoors while it is raining. | ||
| Guaranteed sound power level. Noise emission to the environment according to the European community’s Directive. | ![]() | This product is in accordance with applicable EC directives. | |
![]() | Waste electrical products should not be disposed of with household waste. Take to an authorized recycler. | V | Voltage |
| No Load Speed-Rotational speed, at no load | …/min | Per Minute | |
| Direct Current | kg | Kilogram |
SPECIFICATIONS
| Voltage | 56 V | |
| No-load Speed 3000-4500 RPM | Low-speed set: 3 High-speed set: 4000-5800RPM | |
| Cutting Mechanism | Bump Head | |
| Cutting Line Type | 2.4mmnylon twist line | |
| Cutting Width | 35 cm | |
| Recommended Operating Temperature | 0°C 40°C | |
| Recommended Storage Temperature | -20°C-70°C | |
| Optimum Charging Temperature | 5°C-40°C | |
| Weight (without battery pack) | 5.8 kg | |
| Measured sound power level L\VA | 88.98 dB(A) K=2 dB(A) | |
| Sound pressure level at operator’s ear LPA | 68.96 dB(A) K=2 dB(A) | |
| Guaranteed sound power level k (measured according to 2000/14/EC) | 91 dB(A) | |
| Valuation of vibration at, | Front-assist handle | 3.2 m/s2 K=1.5 m/s2 |
| Rear handle | 2.3 m/s2 K=1.5 m/s2 | |
- The declared vibration total value has been measured in accordance with a standard test method and may be used for comparing one tool with another;
- The declared vibration total value may also be used in a preliminary assessment of exposure.
NOTICE: The vibration emission during actual use of the power tool can differ from the declared value in which the tool is used; In order to protect the operator, the user should wear gloves and ear protectors during the actual conditions of use.
DESCRIPTION
KNOW YOUR LINE TRIMMER (Fig. A1)
| 1 | Rear Handle | 11 | Trimmer Head (Bump Head) |
| 2 | High/Low-Speed Switch | 12 | Line Cutting Blade |
| 3 | Adjustable Front-Assist Handle | 13 | Release Tab |
| 4 | Hinge | 14 | Cutting Line |
| 5 | Line-Loading Button | 15 | Battery Release Button |
| 6 | Guard | 16 | Latch |
| 7 | Lock Pole | 17 | Electric Contacts |
| 8 | Height Locking Collar | 18 | Ejection Mechanism |
| 9 | Switch Trigger | 19 | Hex Wrench |
| 10 | Locking Tongue |
PACKING LIST (FIG.A1)
ASSEMBLY
UNFOLDING THE SHAFT
WARNING: Do not hold the shaft at the joints in order to avoid pinching your hands or fingers.
WARNING: Do not attempt to start the trimmer until the shaft has been locked.
Unfold the shaft gently, ensuring the cable is inside the shaft, and lock it with two screws by the supplied wrench (Fig. B1 & B2).
MOUNTING THE GUARD
Position your trimmer so that the trimmer head faces up (Fig. C1). Align the guard mounting holes with the assembly holes and then lock the guard onto the shaft base with the two screws (Fig. C2).
NOTICE: Make sure the guard is fixed according to Fig. C1 & C2, any reverse fixing will cause great danger!
MOUNTING AND ADJUSTING THE FRONT-ASSIST HANDLE
- Loosen the locking pole in the front-assist handle and remove the locking pole and wing nut from the front-assist handle (Fig. D).
D-1 Front-assist handle D-3 Wingnut D-2 Clamping block D-4 Locking pole - Push the front assist handle onto the shaft between the Height Locking Collar and hinge (Fig. E).
- Insert the clamping block into the handle slot (Fig. F).
- Mount the locking pole lever and pre-tighten the wing nut. Make sure that the front-assist handle is positioned upwards and points toward the top of the rear handle (Fig.J).
- Pull up the level of the lock pole so that you can easily move/rotate the loop handle to where you feel comfortable. then lock the lever of the locking pole. (Fig. H).
WARNING: The tool cannot be used without the front handle securely fixed.
ADJUSTING THE REAR HANDLE
If the length of the shaft is not suitable for operation, you can adjust the length of the shaft through this Height Locking clamp.
- Remove the battery pack from the trimmer.
- To adjust the trimmer height, open the height locking clamp, and then slide the shaft up or down to desired height, securing it in place by depressing the locking clamp (Fig. I).
NOTICE: The front assist handle may require to be readjusted after the trimmer height is changed.
OPERATION
WARNING: Always wear safety goggles or safety glasses with a side shield, along with hearing protection. Failure to do so could result in objects being thrown into your eyes and other possible serious injuries.
You may use this product for the purposes listed below:
Trimming: Used for removing grass and weeds up against walls, fences, trees, and borders.
Cutting: Used for cutting the grass that is difficult to reach using a normal mower.
ATTACHING/DETACHING THE BATTERY PACK
Use only with EGO’s battery packs and chargers listed in Fig. A2.
Fully charge before first use.
To Attach Align the battery ribs with the mounting slots and press the battery pack down until you hear a “click” (Fig. J1).
To Detach
Depress the battery-release button and pull the battery pack out as Fig. J2 shows.
| J-1 | Battery- Release button |
HOLDING THE LINE TRIMMER
Hold the line trimmer with both hands: One hand on the rear handle and the other hand on the front-assist handle.
NOTICE: The trimmer head is parallel to the ground at a proper cutting distance without the operator bending over (Fig. K).
STARTING/STOPPING THE LINE TRIMMER
To Start
Move the locking tongue forwards then depress the switch trigger.
The trigger is stepless speed adjusting. The more you pull up the trigger, the higher speed it is (Fig. L).
To Stop
Release the switch trigger.
SPEED ADJUSTMENT FUNCTION (FIG. L)
The line trimmer has two speeds. Position“LOW” is for low speed while Position “HIGH” is for high speed.
Fig. L parts description see below:
| L-1 | High/low-Speed Switch | L-2 | Switch Trigger |
USING THE LINE TRIMMER
Clear the area to be cut before each use. Remove all objects, such as rocks, broken glass, nails, wire, or lines that can be thrown or become entangled in the cutting attachment. Clear the area of children, bystanders, and pets. At a minimum, keep all children, bystanders, and pets at least 15m away; there still may be a risk to bystanders from thrown objects. Bystanders should be encouraged to wear eye protection. If you are approached, stop the motor and cutting attachment immediately.
Before each use, check for damage/worn parts
Check the bump head, guard, and front-assist handle and replace the parts that are cracked, warped, bent, or damaged in any way.
The line-cutting blade on the edge of the guard can dull over time. It is recommended that you periodically sharpen it with a file or replace it with a new blade.
After each use, clean the trimmer.
ADJUSTING CUTTING LINE LENGTH
The trimmer head allows the operator to release more cutting lines without stopping the motor. As the line becomes frayed or worn, the additional line can be released by lightly tapping the trimmer head on the ground while operating the trimmer (Fig. M).
NOTICE: Line release will require multiple tapping as the cutting line becomes shorter.
WARNING: Do not remove or alter the line cutting blade assembly. Excessive line length will cause the motor to overheat and may result in serious personal injury.
LINE REPLACEMENT
NOTICE: Always use the recommended nylon cutting line with a diameter that does not exceed 2.4 mm. Using lines other than that specified may cause the line trimmer to overheat or become damaged.
WARNING: Never use metal-reinforced line, wire, or rope, etc. These can break off and become dangerous projectiles.
- Remove the battery pack.
- Remove the remaining cutting line, if necessary.
- Cut 4 m of cutting line. Insert the line into the mounting hole inside the eyelet (Fig. O). Push and pull the line from the other side until equal amounts of the line appear on both sides of the spool.
- Install the battery pack onto the string trimmer.
- Press and hold the line-loading button to start the line-winding motor. The line will be wound into the trimmer head continuously (Fig. P).
- Watch the remaining line length carefully. Briefly press the line loading button to adjust the length until 13 cm of the line is shown on each side.
- Push down on the trimmer head while pulling on the lines to manually advance the line in order to check for proper assembly of the cutting line.
When the cutting line breaks from the line outlet or the cutting line is not released when the trimmer head is tapped, follow the steps below
- Remove the battery pack from the trimmer.
- Press the release tabs on the trimmer head and remove the lower cover assembly by pulling it straight out (Fig. Q).
- Remove the cutting line from the spool. 4. Insert the spring into the slot in the lower cover assembly (Fig. R).
- With one hand holding the trimmer, use another hand to grasp the lower cover assembly and align the slots in the lower cover assembly with the release tabs. Press the lower cover assembly until it snaps into place, at which time you will hear a distinct click sound (Fig. S).
- Follow the instructions in the “LINE REPLACEMENT” section to reload the cutting line.
TRIMMER HEAD REPLACEMENT
WARNING: If the head loosens after it is fixed in position, replace it immediately. Never use a trimmer with a loose cutting attachment. Replace a cracked, damaged, or worn-out cutting head immediately, even if the damage is limited to superficial cracks. Such attachments may shatter at high speed and cause serious injury.
REMOVE THE TRIMMER HEAD
- Remove the battery pack from the trimmer.
- Press the release tabs on the trimmer head and remove the lower cover assembly of the trimmer head by pulling it straight out.
- Remove the cutting line from the trimmer head (Fig. S).
- Take the spring out of the spool assembly, if necessary. Save it for reassembly.
- Wear gloves. Use one hand to grasp the spool assembly to stabilize it, and use the other hand to hold an impact wrench (not included) to loosen the nut in a counterclockwise direction (Fig. X).
- Remove the nut, spool retainer, upper cover, and upper base cover, from the motor shaft (Fig. T).
NOTICE: Two bushings easily fall off the motor shaft, please save them carefully for reassembly. - Replace with a new trimmer head and mount it in the following steps.
T-1 Bushing T-6 Trimmer Line T-2 Upper Cover T-7 Lower Cover T-3 Nut T-8 Upper base cover T-4 Washer T-9 Assembly Spool Assembly T-5 Spring
INSTALL THE NEW TRIMMER HEAD
- Mount the bushings in the motor shaft and mount the upper base cover assembly into place (Fig. T).
- Mount the upper cover, spool assembly, washer, and nut in that order. Use an impact wrench on the nut to tighten it (Fig. U & V).
- Mount the lower cover assembly.
- Reload the cutting line.
- Start the tool to see whether the string trimmer will work normally. If it does not, reassemble as described above.
MAINTENANCE
WARNING: When servicing, use only identical replacement parts. Inspect and maintain the machine regularly. To ensure safety and reliability, all repairs should be performed by a qualified service technician.
WARNING: To prevent serious personal injury, remove the battery pack from the tool before servicing, cleaning, changing add-on attachments, or removing material from the unit.
CAUTION: Obstructions in the vents will prevent the air from flowing into the motor housing and result in overheating or damage to the motor.
CLEANING THE UNIT
- Clean the unit using a damp cloth with a mild detergent. Never let any liquid get inside the tool; never immerse any part of the tool into a liquid.
- Do not use any strong detergents on the plastic housing or the handle. They can be damaged by certain aromatic oils, such as pine and lemon, and by solvents such as kerosene. Moisture can also cause a shock hazard. Wipe off any moisture with a soft dry cloth.
- Use a small brush or the air discharge of a small vacuum cleaner brush to clean the air vents on the rear housing.
- Keep air vents in the motor housing from debris at all times.
SHARPEN THE LINE-CUTTING BLADE
WARNING: Always protect your hands by wearing heavy gloves when performing any maintenance on the line-cutting blade.
- Remove the line-cutting blade from the guard accessory.
- Secure the blade in a vise.
- Carefully file the cutting edges of the blade with a fine-tooth file or sharpening stone, being careful to maintain the original cutting-edge angle.
- Replace the blade with the guard and secure it in place with the two screws.
STORING THE UNIT
- Remove the battery pack from the line trimmer when it is not in use.
- Clean the tool thoroughly before storing it.
- Store the unit in a dry, well-ventilated area, locked up or up high, out of the reach of children. Do not store the unit on or adjacent to fertilizers, petrol, or other chemicals.
Protecting the environment
Do not dispose of electrical equipment, used batteries, and chargers into household waste! Take this product to an authorized recycler and make it available for separate collection. Electric tools must be returned to an environmentally compatible recycling facility.
TROUBLESHOOTING
| PROBLEM | CAUSE | SOLUTION |
| The string trimmer fails to start. | ||
| The string trimmer stops while cutting. | ||
| The Trimmer head will not advance the line. | ||
| The grass is wrapped around the trimmer head and motor housing. | Cutting tall grass at ground level | Cut tall grass from the top-down, removing no more than 20 cm in each pass to prevent wrapping. |
| Cracks on the trimmer head or the spool retainer come loose from the spool base. | ■ The trimmer head is worn out. ■ The nut that locks the trimmer head is loose. | ■ Replace the trimmer head immediately; follow the section “TRIMMER HEAD REPLACEMENT” in this manual. ■ Open the trimmer head and use an impact wrench to tighten the nut. |
| The cutting line cannot be wound into the trimmer head properly. | ■ The cutting line is too long. ■ Grass debris or dirt has accumulated in the trimmer head and blocked the movement of the line spool. ■ The motor is overheated due to repeatedly operating the line winding system. ■ Low battery | ■ Cut the line so that about 13 cm long is showing on each side. ■ Remove the battery, open the trimmer head and clean it thoroughly. ■ Let the string trimmer work under no load for a few minutes to cool the motor, then try to reload the line. ■ Charge the battery. |
| The cutting line cannot be passed through the trimmer head when inserting the line. | ■ The cutting line is split or bent at the end. ■ The lower cover is not released to the position after reinstalling. | ■ Cut the worn end of the line and reinsert. ■ Attach the battery pack onto the trimmer; press the line loading button to briefly start the power loading to release the lower cover. |
WARRANTY
EGO WARRANTY POLICY
Please visit the website egopowerplus.com for full terms and conditions of the EGO Warranty policy.





















