PRONAR T286 Operator's Manual page 147

SECTION 5
TABLE 5.4 Mechanical suspension system maintenance schedule
FREQUENCY
After the first travel
with load.
Before intensive work
or every 6 months.
Once a year
Tighten all U bolt nuts on the axle using recommended tightening
torque - figure (5.12) item A. The nuts should be tightened diagonally.
Tighten all bolt and nut connections of the suspension system
according to figure (5.12) (suspension spring stirrups, brackets, rigid
and adjustable lateral control rods, rocker arms).
Tighten the fixing of adjustable lateral control rods – figure (5.12) item
C. If the bolts are loose, the length of rods may be wrong. Confirm that
the distance between the axles on the right side and the left side of the
trailer is the same. Confirm that wheels are positioned in parallel to
direction of travel.
Tighten the fixing of rubber sleeves in rigid and adjustable lateral
control rods.
Pressure washers (item 1) should not touch the bracket (item 2).
Otherwise, replace the rubber sleeves (item 3) - figure (5.13). Before
installation, cover the sleeves with lubricant.
Check the condition of the suspension springs, carefully clean and
brush the sides of the suspension springs in order to confirm that there
are no cracks.
If there is a clearance between suspension springs (1) and axle, check
the complete fixing system: U bolts (2), and guiding and clamping
plates – figure (5.12).
• If the trailer is operated in severe conditions or is operated intensively, the
maintenance activities should be performed more frequently.
MAINTENANCE ACTIVITIES
5.31
Pronar T286