Belarus 952.4 - Page 44

BELARUS-920.4/952.4 Operating manual
44
Operation 1a. Check fastening of air conditioner hoses
The conditioner hoses must be securely fastened with tension bands. Do not allow contact
of the hoses with tractor’s moving parts.
Operation 2a. Check / clean air conditioner condenser
Check cleanliness of the air conditioner core. If it is clogged, clean the air conditioner with
compressed air. Direct air flow with the hood open perpendicularly to the condenser plane top-
down. Straighten folded finning with a special comb or plastic (wooden) plate. In case of severe
clogging of the condenser, rinse it with hot water under pressure of 0.15 to 0.2 MPa max and blow
with compressed air.
Operation 3a. Check / clean drain pipes of condensate
Blue drain pipes are to the right and left of the heat exchanger pipe under the ceiling panel.
Check and, as necessary in order not to allow plugging, clean the drain pipes. A sign of a clean
drain pipe is water dripping when the conditioner is working during hot weather.
Operation 4a. Remove condensate from the tanks of the heat exchanger of
the engine charge air cooler (CAC)
To remove condensate from the tanks of the engine CAC heat exchanger, proceed as fol-
lows:
- unscrew two plugs 1 (Figure 3.2) in the lower part of the charged air cooler 2;
- let condensate drain;
- screw the plugs 1.
Figure 3.2 – Removal of condensate from the tanks of the engine CAC heat exchanger
Operation 5a. Check and maintenance of the engine air cleaner
Check condition of the paper filter elements (PFE) for presence of paper break and correct
installation of the PFE. To check the basic filter element (BFE), perform the following:
- open the tractor hood mask to get access to the air cleaner;
- pull the yellow latch 1 (Figure 3.3), turn the cover 2 counterclockwise by 12.5° and re-
move it;
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