Belarus 2022.6 Operator's Manual page 162

5.4.2.10 Operation 29. Check / adjustment of air conditioner compressor drive belt ten-
sion
1. Check of air conditioner compressor drive belt tension:
Belt 2 tension (figure 5.4.19) is considered normal if deflection of its side "tension lever
pulley – compressor pulley" measured in the middle is within 4 to 6 mm when pressing it by
force of (39.2±2.0) N.
In case this condition is not observed, it is necessary to adjust air conditioner compres-
sor drive belt tension.
2. Adjustment of air conditioner compressor drive belt tension:
Adjustment of belt 2 tension (figure 5.4.19) of conditioner compressor 3 shall be carried
out by turning tension lever 1 on rotational axis А and threaded joint chuck B in slot C of plate
D. Belt deflection in response to force of (39.2+2.0) N applied perpendicular to the center of
belt side shall be within 4 to 6 mm.
Figure 5.4.19 – Adjustment of air conditioner compressor drive belt tension
5.4.2.11 Operation 30. Check of oil level in the main gear housing and housings of FDA
wheel-hub drives
To check oil level in housings of the main gear and FDA wheel-hub drives, it is required
to do the following:
- set the tractor on even horizontal ground, engage a parking brake and lock the
wheels against movement with wheel blocks in front and at the rear, preventing trac-
tor spontaneous movement. The engine shall be off.
- unscrew check/fill plugs 2 (figure 5.4.20) in housings of wheel-hub drives 3 and
check/fill plug 5 in the main gear housing;
- oil level in housings of wheel-hub drives and main gear shall reach lower edges of
plugs 2 and 5 threaded openings correspondingly;
- if necessary, refill oil up to lower edges of plugs 2 and 5 threaded openings;
- put plugs 2 and 5 back on their places.
1, 6 – drain plug; 2, 5 – check/fill plug; 3 – wheel-hub drive housing; 4 – FDA beam.
Figure 5.4.20 – Check of oil level and oil replacement in FDA reduction unit housings
1 – tension lever; 2 – belt; 3 – compressor.
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2022.6-0000010 OM