A chainsaw is an indispensable tool in urban construction, on a personal plot and in forestry. It effectively allows you to get rid of diseased trees and disturbing stumps, cut a log, saw off a beam.
The Sturm chainsaw combines quality, convenience and profitability, therefore it is considered the best tool for such work. She enjoys well-deserved popularity among home craftsmen. The Sturm chainsaw (manufacturer - Energomash) is one of the undoubted leaders in the construction tools market. Thanks to the use of high-quality chains and Oregon tires, the equipment has been serving the owner regularly for many seasons.
Sturm chainsaw: instruction manual
The efficiency of any tool, the safety of equipment and ensuring safe conditions for its use is ensured primarily by its proper operation. A feature of chainsaws is their high potential injury hazard. Therefore, one of the main components of the rules for the operation of equipment is safety requirements.
When is the chainsaw ready to go?
Network users willingly share their experience with using the Sturm chainsaw, as well as tips and tricks regarding equipment operation, maintenance and self-repair. According to reviews, the readiness for operation of the instrument is indicated by:
- serviceability of all nodes and mechanisms;
- the presence of a sharp, correctly stretched chain;
- fullness of fuel and oil tanks;
- properly adjusted carburetor.
How to maintain tool health?
The authors of the reviews are convinced that in order to ensure the smooth operation of the chainsaw, it must be properly maintained. The main operations that support the health of the tool are:
- air filter cleaning;
- carburetor adjustment ;
- spark plug cleaning;
- adjustment of the gap between its electrodes;
- chain sharpening;
- replacement of wearing parts.
A new chainsaw must be run at low speeds for 40-50 minutes, then turn off and then check the chain tension. Then several trial cuts are made, without the application of effort, and only after that they begin to work in normal mode.
About installing and adjusting chain tension
The Sturm chainsaw chain is one of the most important elements of their device. With the installation of a new or used sharpened chain on a chainsaw, the preparation of the tool for work begins. Chain parameters (pitch and shank thickness) must match the installed bus.
Types of tensioning mechanisms
Two types of chainsaw chains are distinguished:
- linear standard;
- high-speed.
Experts recommend using as a more effective traditional linear mechanism, for the implementation of which should:
- Loosen nuts and remove chain sprocket cover.
- Before starting installation or removal of the protective cover for the chain sprocket, the reviewers advise loosening the chain brake, for which you should pull the brake stop to the handle.
- The chain is started for clutch, put on the drive sprocket and put on the tire. The cutting edge of the tooth on the upper branch of the chain should be directed forward. It is necessary to ensure easy pulling of the chain, ease of rotation of the clutch drum during its movement.
- After this, the rotation of the tensioning screw is shifted forward until the shanks of the lower branch fit into the groove of the tire and press against its lower edge.
- The final adjustment of the chain tension, as well as the tire tightening, is carried out after the cover is put in place and the fastening screws are pre-tightened (not completely).
What does it mean: a properly tightened chain?
As follows from the recommendations of experts who users share on the Internet, a sign of a properly stretched chain is the lack of sagging from the bottom and not too much tension. The first can be checked visually, the second is checked by pulling the chain along the tire with your hand. In order to avoid a cut, this operation should be carried out in protective gloves. If there is an adherence of the lower branch of the chain to the edge of the tire and the chain extends freely, then it is tensioned correctly.
How is the Sturm chainsaw launched?
Well-tuned and adjusted equipment, as the authors of the reviews assure, is easy to run in any conditions.
- Before starting the Sturm chainsaw, it is installed out of the blue. In this case, the tire should not touch the ground. The chain brake must be activated, i.e. move to the end of the tire.
- With the left hand, at start-up, hold the front handle of the saw, and with the right foot, press the rear handle to the ground.
Sturm chainsaw: working methods and safety measures
Users recommend:
- Before you start working with the tool, you need to make sure that all its components and mechanisms are in good working order.
- It is necessary to ensure a stable position of the equipment, nothing should be underfoot, as excess objects can lead to imbalance or fall of the worker.
- Sawing begins with a moving chain. You can cut both the lower and upper branches of the chain, but the first method is considered the main one (the saw is carried forward, the teeth abut against the tree). When cutting with the upper branch, the saw is pushed towards the operator.
- It is forbidden to cut several branches (trunks) at the same time. It is necessary to ensure that during sawing one branch (trunk) the tool does not come into contact with neighboring ones.
- Trunks having an internal bending stress are first filed from the side of the compressed fibers, and finally cut from the side of the stretched ones. Otherwise, the chain and the tire may be caught in the cut.
- Caution should be exercised when sawing split trees: intensive picking and ejection by a chain of chips is possible. In addition, split trees sometimes clamp the tire.
- When sawing trees lying on the ground, they must be securely fixed to prevent rolling. The optimal position of the logs is laying on the gantry.
- The felling of trees is carried out with two cuts: cutting and cutting.
About repair
The authors of the reviews assure: those who have broken the Sturm chainsaw should not be upset. The starter in it is the most problematic element in this regard. But if you have experience, fulfilling the requirements of the instructions, it is completely simple to repair it with your own hands.
How to remove a starter?
- Remove the side cover of the housing by unscrewing the screws and disconnecting the fixing latches.
- Remove the screw that holds the starter and set aside.
- Remove and set aside the starter clamp, as well as (if equipped) and the soft-start spring.
- Detach pulley and rope.
- Untie the knot on the cord, pull the rope out of the pulley.
- Remove the pulley from the cover.
How to diagnose?
- Inspect the pulley (check for tears and cracks). According to experienced users, the starter may not work due to damage to the pulley on the rear.
- Inspect the spring. The authors of the reviews claim that the spring, like the case, can be damaged at the attachment point, most often where it is visible during disassembly.
How to assemble a starter?
After installing the cord, you must pull it slightly and not allow it to slip. Perhaps its scrolling and "departure" from the mount. In this case, the spring may pop out of the starter. Network users advise that to avoid this it is necessary:
- Replace pulley (install over starter spring and make sure clutch is in place).
- Wrap the pulley (it should “pull” the cable into the starter). Four to five revolutions are enough to set the desired voltage.
- Attach the rope. In this case, it is better to use the services of an assistant. But it is possible to perform this procedure on your own. It is necessary to compare the holes in the pulley and in the starter housing. Pass the rope through both holes, tie a knot at the end, take the rope to the side.
- Install the starter clamp.
- If necessary, replace the soft start spring. Then set the starter clip in place and tighten the screw.
- Wind the rope.
- Replace the cover and tighten the screws.
109th model
According to user reviews, one of the most popular models is the Sturm-109 chainsaw. Her characteristics:
- Power - 5 liters. from. (3.6 Kw).
- Engine displacement - 52 cubic cm
- The crankcase is metal.
- Launch system (enhanced) - Ergo Start.
- The presence of an inertial motor starter (a special coil equipped with a double coil spring) facilitates the start.
- Unlike most analogues, the model has not plastic but metal teeth of the flywheel – starter gearing.
- The length of the tire is 50 cm.
- The chain pitch is 0.325 cm.
- The volume of the fuel tank is 550 ml.
- Automated chain lubrication.
- The volume of the fuel tank for chain lubrication is 260 ml.
- The presence of an adjustable oil pump.
- An opportunity to provide carburetor adjustment.
- The ignition system is equipped with thermal protection.
- The volumetric mesh air filter can be easily removed for cleaning if necessary.
The Sturm-109 chainsaw is one of the newest models. Its characteristics, as the authors of the reviews assure, can significantly optimize the process of using equipment.
The Sturm chainsaw is an indispensable assistant to home craftsmen. Attention to the recommendations of specialists and strict implementation of the instructions are the key to the uninterrupted operation of the tool for a long time.