Course code MežZ1015

Credit points 3

Forest Work and Machinery I

Total Hours in Course81

Number of hours for lectures16

Number of hours for laboratory classes16

Independent study hours49

Date of course confirmation16.02.2021

Responsible UnitInstitute of Forest Management

Course developers


Aleksandrs Saveļjevs

Dr. sc. ing.


Pēteris Kaļeiņikovs

Mg. sc. ing.

author Mežsaimniecības institūts

Ziedonis Sarmulis

Dr. sc. ing.

Course abstract

The study course provides the necessary expertise in forest works where motor vehicles are used. It forms the theoretical basis for both the commencement of practical training, the right decision-making in the production conditions for timber preparation in felling areas and the grooming of young forest stands. Provide the necessary expertise for the correct and safe use and maintenance of motor vehicles in technical order. The focus is on operations technology.

Learning outcomes and their assessment

After the course, students will have:
• Knowledge - Understanding the construction of motor vehicles for use in forest works, their operation and prevention of disturbances (test)
• Skills – skills to choose suitable motor tools for various forest-friendly and logging jobs (laboratory work)
• Competency - Responsible use of performance technologies (laboratory work)

Course Content(Calendar)

1 Motortools in forest works, general interest, management and safety regulations. (1 h lecture, 1 h laboratory work)
2 Construction, operation, disturbance, prevention of the main machinery and systems of the engine(1 h lecture, 1 h laboratory work)
3 Structure, operation, disturbance, prevention of the force transmission. Operation of sawing apparatus. (1 h lecture, 1 h laboratory work)
4 Shadeing, lubricating, tensioning of the saw chain. Maintenance of other cutting instruments. (1 h lecture, 1 h laboratory work)
5 Maintenance of starter, control and safety devices on the agenda(1 h lecture, 1 h laboratory work)
6 Trouble cutting instruments, attachment, miscellaneous attachment instruments used in forest works. (1 h lecture, 1 h laboratory work)
7 Wood felling techniques and recommended techniques. Felling of dangerous trees (1 h lecture, 1 h laboratory work)
8 Struck pruning technology, correct pruning techniques. (1 h lecture, 1 h laboratory work)
9 Stumbing technology. Correct working methods ( 1 h lecture, 1 h laboratory work)
10 Coating, pruning, sapling and landing complex technology, bands and pallet methods. (1 h lecture, 1 h laboratory work)
11 Working organization in developing felling areas with petrol chainsaws in major and intermediate circuits. (1 h lecture, 1 h laboratory work)
12 Industrial planning of the area when working on petrol chainsaws (1 h lecture, 1 h laboratory work)
13 Working technology and workplace planning when working with breast cutters. (1 h lecture, 1 h laboratory work)
14 Working safety rules for tree felling, pruning and sapling. (1 h lecture, 1 h laboratory work)
15 Special provisions for the development of forests for wind, wind farms, sanitary felling and farming. (1 h lecture, 1 h laboratory work)
16 Measures to protect the environment while working on petrol chainsaws. (1 h lecture, 1 h laboratory work)

Requirements for awarding credit points

All laboratory woks have been performed successfully and clearing has been completed.

Description of the organization and tasks of students’ independent work

Independent preparation for the control of knowledge by studying special literature and using the learning resources available in the e-study environment within the study course.

Criteria for Evaluating Learning Outcomes

All laboratory works (40% of the total score), test completed (60% of the total score).

Compulsory reading

1. Motorzāģis - lietošana un apkope. Zviedrijas nacionālā mežsaimniecības pārvalde, 1997. 65 lpp.
2. Līpiņš L. Stumbru racionāla sagarumošana. Rīga: LLU Meža izmantošanas kat., Liesma, 1999. 75 lpp.
3. Saliņš Z. Mežizstrādes tehnoloģija. Jelgava : LLU Meža ekspluatācijas kat., 1997. 80 lpp.
4. Davidāns M., Saveļjevs A., Strūbergs A., Traktortehnika meža darbos. Jelgava, 2019, Studentu biedrība Šalkone, 140 lpp.

Further reading

1. Benzīna motorinstrumentu lietošanas instrukcijas.
2. Benzīna motorzāģus un motorinstrumentu ražojošo (tirgojošo) firmu prospekti.

Periodicals and other sources

1. Baltijas Koks. ISSN 1407-6667
2. International Forest Industries. ISSN 978-989-643-016-00


The study course is included in the compulsory part of full-time and part-time studies in the 3rd semester of the 2nd year of the MF professional higher education bachelor's program "Forest Engineer".