Belarus 1221B.2 - Scheduled Maintenance; Refill Capacities and Recommended Liquids

BELARUS-1221.2/1221В.2/1221.3 Possible defects and ways of their elimination
227
Defect, external manifestation
Way of elimination
erate
Check the integrity of the respective fuse
(25А, see the electric diagram) in the fuse
block located in the in
strument dashboard.
Replace the blown fuse.
Check the presence of voltage at the air-
conditioner “M7” motor using a test lamp
when the switch is set to the ON position
and the presence of chassis on the engine
.
If the electric circuits are in good order, but
no voltage is applied to the air-conditioner
“M7”, replace the switch.
When the air-conditioner is switched to the
cooling mode, warm air is sup
plied to the
cab
Destruction of the seal of the cock ПО-11 (or
ВС11).
Replace the cock ПО-11 (or ВС11)
Coolant leakage from the ventilation com-
partment of the cab
Rupture of the heater tubes (“unfreezing” of
the heater due to incomplete drainage dur-
ing the operation with water in the cold sea-
son of the year).
Replace the climatic unit of the air-
conditioner.