Maintenance Services In Every 2000 Hours Of Operation; Maintenance Service That Is Inconsistent With The Intervals Of; And Special Ms - Belarus 3522.5 Operator's Manual

6.4.6 Maintenance service in every 2000 hours of operation
6.4.6.1 General guidelines
Complete the abovementioned tasks, and the tasks, listed in the present subclause
6.4.6.
6.4.6.2 Task 60. Change of coolant in the engine cooling system
To change liquid coolant (LC) in the engine cooling system, perform the following:
- place the tractor on level horizontal ground, engage the parking brake and lock the
wheels against movement fore and aft by anti-recoil limit stops, excluding tractor self-
movement. The engine must be stopped.
- unscrew the drain plug 12 of the water radiator 8 (Figure 3.1.4) 12 and drain the
coolant;
- screw the drain plug 12 of the water radiator;
- open the plug 13 of the expansion chamber 1;
- fill the coolant through the expansion chamber neck. Filling shall be carried out up to
the moment, when the coolant level in the expansion chamber is below by 50...60 mm the
level of the filler neck upper edge;
- start the engine. Warm it up to the moment, when the temperature of LC reaches
92 to 95°С. Check the pressure in the system (by hand in the tube 4 from the water pump
to the water radiator). Stop the engine.
- check the uniformity of upper and lower radiator tanks warming-up, and radiator
core. Let the engine cool down;
- check the level of the coolant (it shall be below the level of the expansion chamber
filler neck upper edge), refill the LC if necessary;
- cork the expansion chamber 1 with the plug 13.
WARNING: COOLING SYSTEM OPERATES UNDER PRESSURE, WHICH IS
MAINTAINED BY THE VALVE IN THE EXPANSION CHAMBER PLUG. IT IS DANGER-
OUS TO REMOVE THE PLUG WHEN THE ENGINE IS HOT. LET THE ENGINE COOL
DOWN, COVER THE PLUG WITH THICK FABRIC AND TURN IT SLOW TO REDUCE
PRESSURE IN A SMOOTH MANNER, BEFORE THE PLUG IS FULLY UNSCREWED.
BE CAREFUL IN ORDER TO AVOID CONTACT WITH HOT OIL!
6.4.6.3 Task 61. Replacement of filter cartridge in the cabine ventilation and air
heating systems
Replace filter cartridges of the ventilation system filters and cab heating. Method of
removing and installation of the filter cartridge on the tractor is specified in clause 6.4.2.9
"Task 23. Cleaning of filter cartridges of ventilation and air heating systems".
6.4.7 Maintenance service that is inconsistent with intervals of MS-1, 2MS-1,
MS-2, MS-3 and special MS
Task 62. Replacement of filter-drier of the air-conditioning system
Replacement of filter-drier shall be carried out in every 800 hours of operation or
once in a year, whichever comes first.
ATTENTION: TO REPLACE A FILTER-DRIER CONTACT SPECIAL SERVICE
STATION. REPLACEMENT SHALL BE CARRIED OUT USING SPECIAL-PURPOSE
EQUIPMENT!
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