Maintenance service of engines ZMZ-4061,-4063 has some differences in comparison with maintenance service of engines ZMZ-4025,-4026.

At operation of engines ZMZ-4061,-4063 to make a tightening of a head of cylinders it is not required.

Application in a drive of valves of hydraulic pushers excludes necessity of adjustment of thermal backlashes between valves and pushers, and application in a chain drive of camshafts hydraulic натяжителей excludes necessity of a tension of chains.

Care of system of greasing of engines ZMZ-4061,-4063 is similar to care of system of greasing of engines ZMZ-4025,-4026.

At service of system of ventilation картера the cover of valves acts in film and washed out without dismantling маслоотражателя. Other operations are similar specified for ЗМЗ-4025,-4026.

Care of system of cooling of engines ZMZ-4061,-4063 is similar specified for engines ZMZ-4025,-4026. Difference consists that on engines ZMZ-4061,-4063 one belt of a drive of auxiliary units is applied. The belt tension is made by change of position of a tension roller. For this purpose it is necessary:

Fig. 4.131. The scheme of a tension of a belt of a drive of units: And = 15 mm; 1 — a pulley of a cranked shaft; 2 — a tension roller; 3 — a bolt of fastening of a tension roller; 4 — поликлиновой a belt; 5 — a generator pulley; 6 — a bolt of moving of a tension roller; 7 — a pulley of the pump of a cooling liquid

- To weaken a bolt 3 (fig. 4.131 see) fastenings of a tension roller;