Belarus 3522.5, Operator'S Manual

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3522.5-0000010 OM
298
6.4.5.13 Task 59. Check of gripping of tractor external threaded joints
Check and tighten up if necessary the following most important threaded joints
:
1 - frame — rear plate;
2 - rear plate — clutch casing;
3 - clutch casing — gearbox casing;
4 - gearbox casing — rear axle body;
5 - rear axle body — the rear semi axle tube;
6 – brace brackets of RLL of the rear semi axle tube;
7 - eye ring fastening the RLL lower drawbars;
8 – front and rear cab mounting supports;
9 – front wheels wings pivot mechanism;
10 – FDA body — central reducing gear;
11 – pivot pin — wheel-hub drive;
12 - steering cylinders pins;
13 – locking nuts of the steering link tube.
1.
Check and tighten up if necessary ten accessible bolts
М
20 (by five bolts on each
side) fastening the frame to the rear plate with torque of 350 to 380 N
×
m;
2.
Check and tighten up if necessary sixteen accessible bolts
М
20 fastening the rear
plate to the clutch casing with torque of 350 to 380 N
×
m.
3. Check and tighten up if necessary eighteen bolts
М
20 at the joint of gearbox cas-
ing and the clutch casing with torque of 350 to 400 N
×
m.
4. Check and tighten up if necessary twenty bolts
М
20 at the joint of gearbox casing
and the rear axle body with torque of 350 to 400 N
×
m.
5.
Check and tighten up if necessary
thirty seven bolts
М
18 at both joints of the rear
axle body and the rear semi axle tube (nineteen bolts to the right side along the direction of the
tractor motion, and eighteen bolts to the left side along the direction of the tractor motion) with
torque of 400 to 500 N
×
m.
6.
Check and tighten up if necessary
eight bolts
М
20 (by four bolts on each side) fasten-
ing the brace brackets of RLL to the rear semi axle tubes with torque of 320 to 360 N
×
m.
7. Check and tighten up if necessary two castle nuts
М
27 (by one nut on each link) fas-
tening the eye ring to the lower drawbars for which perform the following actions:
- unfasten the cotter pin holding the castle nuts;
-
tighten up two
castle nuts with torque of not less than 50 N
×
m,
- then make castle nut further to the moment when the nut’s nearest slot matches the
pin bore, and fasten it with cotter pin then.
8.
Check and tighten up if necessary
the accessory fastening the cab mounting sup-
ports (front and rear) to the tractor frame. Sixteen bolts M16 shall be tightened with torque
from 160 to 200 N
×
m (by four bolts per each supporting bracket.
Inspect the reliability of locking by a locking pin of the castle nut M20 fastening the bot-
tom vibration isolator (four places).
9.
Check and tighten up if necessary two nuts M16 and the axis M16 on each wings
pivot mechanism of the front wheels with torque from
160 to 200 N
×
m. To
check and tighten
up
the nuts and axles remove the rubber caps, protecting the attrition area. To make this unscrew
the bolts
М
6 fastening the safety caps.
10.
Check and tighten up if necessary eighteen bolts M14 connecting the FDA bod-
ies and the central gearbox with torque from 100 to 135 N·m.
11. Check and tighten up if necessary sixteen bolts
М
16 (by eight bolts on each side) fas-
tening the pivot and wheel-hub drive axis with torque from 160 to 200 N·m.
12.
Check and tighten up if necessary four castle nuts
М
27
х
1.5 of a cone-shaped pin
of the hydraulic steering cylinder, for which perform the following actions:
- unfasten the cotter pin holding the castle nuts;
-
tighten up four castle nuts with torque from 180 to 200 N
×
m;
- then make castle nut further to the moment when the nut’s nearest slot matches the
pin bore, and fasten it with cotter pin then.
13. Check and tighten up if necessary two locking nuts
М
30
х
1.5 (with thread on the
right and on the left side) of the steering link tube with torque from 15 to 170 N·m.
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