Description
Yato carpenter’s cordless chainsaw 18V 4 Ah is a lightweight cordless chainsaw with a brushless motor and a 6″ (158.5 mm) bar. The saw is designed for cutting wood: pruning branches, cutting trees and shrubs, and light carpentry and joinery work such as cutting boards, beams and panels. The set includes an 18 V 4 Ah Li-Ion battery and a charger.
The maximum chain speed is 6.2 m/s and the motor speed 3500 min⁻¹. The half-chisel chain (pitch 0.3″ / 7.62 mm, drive link thickness 1.1 mm, 28 drive links) cuts both across and along the grain. The saw body is articulated: the bar and chain can be turned to two working positions with the joint lock.
The saw comes with a riving knife, a detachable auxiliary handle, a bar cover and a tape measure. The chain is tensioned without tools using the locking knob on the side cover, and a centrifugal brake stops the chain. The saw has no oil tank, so the chain is lubricated by hand with an oil can every 15–20 minutes of use.
The operating voltage is 18 V DC and the protection class is III. The sound power level is 93.1 ± 3 dB(A) (guaranteed 97 dB(A)) and vibration is below 2.5 ± 1.5 m/s², so hearing protection and protective gloves are needed. The saw is not suitable for felling trees, and it must not be used in the rain.
Uses and suitability:
The Yato carpenter’s cordless chainsaw 18V 4 Ah is a dual-purpose tool: it suits both pruning in the yard and garden and light timber construction work.
- Carpentry and joinery: Cutting boards, battens, beams and panels and fitting timber structures on site; the articulated body makes cutting in tight spaces easier.
- Pruning: Removing branches and water sprouts from fruit and ornamental trees from the ground, no higher than shoulder height.
- Shrub and hedge care: Cutting thick shrub branches and root suckers when a hedge trimmer is not enough.
- Firewood and yard clean-up: Cutting fallen branches and thin logs to length on a sawhorse.
The saw also takes other Yato 18 V batteries, such as the Yato 18V Li-Ion battery. For pruning only, there is also the Yato cordless pruning saw 7″ 18V + 2 Ah battery and charger set. Without the battery and charger, the same saw is model YT-828116.
Package contents:
- Yato carpenter’s cordless chainsaw 18 V
- Bar 6″ (158.5 mm)
- Saw chain
- Riving knife
- Auxiliary handle
- Bar cover
- Tape measure
- Li-Ion battery 18 V 4 Ah
- Charger (charging station)
- Instruction manual
Features:
- Brushless motor: No wearing carbon brushes; longer service life and lower energy consumption.
- Articulated body: The bar and chain are turned to two working positions with the joint lock slider.
- Riving knife and auxiliary handle: Accessories for light joinery and carpentry cuts; the auxiliary handle improves the two-handed grip.
- Quick tensioning: The chain tension is adjusted without tools using the locking knob on the side cover; the chain should lift 3–4 mm from the bar.
- Centrifugal brake: Stops the chain when the switch is released.
- Half-chisel chain: Pitch 0.3″ (7.62 mm), drive link 1.1 mm, 28 drive links; semi-open bar and G mount.
- Manual lubrication: No oil tank or automatic lubrication; the chain is cleaned and oiled every 15–20 minutes.
- Soft handle and switch lock: The switch works only when the lock button is pressed with the thumb.
- Yato 18 V system: Compatible with Yato 18 V Li-Ion batteries YT-828461–YT-828465 and chargers YT-828498–YT-828504.
- Battery and charger: The 4 Ah (72 Wh) battery charges in about 2 hours; the battery has a charge level indicator and the charger has indicator lights.
Technical specifications:
- Voltage: 18 V DC.
- Battery type: Li-Ion (Yato 18 V).
- Battery capacity: 4000 mAh (4 Ah).
- Battery energy: 72 Wh.
- Batteries included: 1.
- Charger included: yes.
- Charging time: 2 h.
- Fast charging: yes.
- Charge level indicator: yes.
- Charger: 200–240 V~, 50/60 Hz, 2 A; output 21.5 V DC, 2.2 A.
- Motor: brushless.
- Speed: 3500 min⁻¹.
- Chain speed: up to 6.2 m/s.
- Bar length: 6″ (158.5 mm).
- Chain type: half chisel.
- Chain pitch: 0.3″ (7.62 mm).
- Drive link thickness / bar groove width: 0.043″ (1.1 mm).
- Number of drive links: 28.
- Drive sprocket: 28 teeth × 7.62 mm.
- Bar type: semi-open.
- Mount type: G.
- Automatic chain lubrication: no (manual lubrication every 15–20 min).
- Quick chain tensioning: yes.
- Brake: yes, centrifugal brake.
- Soft handle: yes.
- Working positions: 2 (articulated body).
- Protection class: III.
- Sound pressure level LpA: 85.1 ± 3 dB(A).
- Sound power level LwA: 93.1 ± 3 dB(A).
- Guaranteed sound power level: 97 dB(A) (2000/14/EC).
- Vibration ah: < 2.5 ± 1.5 m/s².
- Weight: 1.5 kg (without battery).
- Chain tension: the chain lifts 3–4 mm from the bar; check every 10 min.
- Standards: EN 62841-1, EN ISO 12100, EN IEC 55014-1, EN IEC 55014-2.
Yato carpenter’s cordless chainsaw 18V 4 Ah user instructions:
Charging the battery: The battery is supplied uncharged. Slide the battery into the charger and plug the charger into a socket; the indicator light shows the charging status. The 4 Ah battery charges in about 2 hours. Charge only indoors in a dry place under adult supervision.
Fitting the bar and chain: Remove the battery and wear protective gloves. Open the locking knob, remove the side cover and fit the bar and chain so that the chain teeth point in the direction of travel marked on the body and the chain sits in the bar groove and on the sprocket teeth. Refit the side cover and tighten the knob lightly.
Tensioning the chain: Tension the chain by turning the locking knob clockwise. When the chain is pulled at the middle of the bar, it should lift 3–4 mm from the bar. Check the tension every 10 minutes.
Lubrication: The saw has no oil tank. Every 15–20 minutes of use, remove the battery, remove the side cover, clean the chain and oil the links with chain oil, for example using an oil can. Do not use used engine oil.
Use: Remove the bar cover. Hold the handle with your right hand and the rubberised part of the body or the auxiliary handle with your left, press the switch lock with your thumb and then the switch. Let the chain reach full speed before bringing it to the wood, and cut with the lower edge of the bar, never with the upper quarter of the bar tip. Cut branches about 15 cm from the trunk in three cuts: from below to 1/3 depth, from above, and finally next to the trunk from above.
Working position: Push the joint lock slider and turn the bar with the chain until the slider locks into the other working position.
Maintenance and storage: Remove the battery. Clean the body with a soft dry cloth, tighten any loose screws and check the condition of the chain; sharpen the chain or have it sharpened at a service centre. Apply a thin layer of oil to the chain and store the saw in a dry place with the bar cover fitted.
Warnings:
- Read the user manual before use. Wear safety glasses, hearing protection, protective gloves, a respirator and close-fitting clothing.
- Risk of kickback: do not cut with the bar tip, hold the saw with both hands and do not stand in the cutting plane.
- Do not use the saw in a tree, on a ladder, on a roof or above shoulder height. The saw is not suitable for felling trees.
- Cut only wood; not plastic, concrete or other building materials. Watch out for nails and stones in the wood.
- Beware of branches under tension: a released branch can strike the user or throw the saw.
- Always remove the battery before fitting or tensioning the chain, lubricating, removing jammed wood and transporting. Carry the saw switched off with the bar cover fitted.
- Do not use the saw in rain or fog. Charge the battery only with a Yato 18 V charger in a dry place; do not short-circuit the battery terminals.
- Not for use by children. Keep children and bystanders away from the work area.
Frequently asked questions (FAQ):
Does the Yato carpenter’s cordless chainsaw 18V 4 Ah lubricate the chain automatically? No. The saw has no oil tank, so the chain is cleaned and oiled by hand every 15–20 minutes of use.
What are the riving knife and articulated body used for? The riving knife and auxiliary handle are for light joinery work, and the joint lets you turn the bar to two working positions.
What does the set include? The saw, bar, chain, bar cover, riving knife, auxiliary handle and tape measure, plus an 18 V 4 Ah Li-Ion battery and charger; the battery charges in about 2 hours. Without the battery and charger, the saw is model YT-828116.
Which batteries fit the saw? Yato 18 V Li-Ion batteries YT-828461–YT-828465; they are charged with Yato chargers YT-828498–YT-828504.
Can the saw be used to fell trees? No. The saw is designed for branches, shrubs and light woodwork, and it is used from the ground.
Recycling instructions:
Recycle the cardboard packaging and paper user manual in cardboard and paper collection. The Yato carpenter’s cordless chainsaw 18V 4 Ah is an electrical appliance: take the saw and charger to a WEEE collection point at the end of their life, not to mixed waste. Return the Li-Ion battery to battery collection or to the retailer; tape the battery terminals before transport, and do not transport a damaged battery. Recycle a worn chain and bar in metal collection.
