International journal of scientific & technology research volume 9, issue 03, march 20 2

part-turn excavator, making it more versatile. 
SAREKS OJSC (Saransk) - produces excavators based on 
pneumatic wheel tractors: an EO-2621B3 excavator with a 
dozer blade based on an LTZ-60AVE or MTZ82 tractor; an 
EO-2626 backhoe loader, including a digging axis, offset 
based on tractor MTZ-82U. The latest development of SAREX 
OJSC is a backhoe loader based on the Massey Ferguson 
tractor (England). The machine has electro-hydraulic control 
and is characterized by smooth operation. In June 2001, the 
Mikhnevsky Mechanical Repair Plant, with the participation of 
Hydropac, modernized the EO-2621VZ excavator and 
organized its serial production. On the new model, for the first 
time in its class, the hydraulic control of the Italian companies 
Hydrocontrol, Indermar, Oleotek, Planet filters are installed. 
Management is carried out using two joysticks operating in 
mutually perpendicular planes and connected to the directional 
control valves with flexible cables. The use of cables allows 
you to install joysticks in convenient places for work, increases 
the reliability and smoothness of the excavator control. 
Through one joystick, the operator controls the bucket, 
through the other - the boom. 
The following main areas of use of multi-purpose machines 
can be divided: 
- land reclamation (irrigation); 
- construction of roads and structures; 
- Agriculture; 
- public utilities; 
- forestry; 
- industrial facilities: