Rauch MDS 8.2, Instruction Manual

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Maintenance and service 12
110
12.2 Wear parts and screw connections
12.2.1 Checking wear-prone parts
Wear-prone parts are: spreader vanes, agitator head, outlet, hydraulic hoses
and all plastic parts.
Plastic parts are subject to a certain ageing process even under normal spread-
ing conditions. Plastic parts are e.g.
protective grid locks , connecting rod .

Inspect wear parts regularly.
Replace these parts if they show signs of wear, deformation, holes or ageing.
Otherwise, the spreading pattern will not be correct.
The durability of wear parts depends, among other things, on the material being
spread.
12.2.2 Checking the bolted joints
Bolted joints have been tightened to the specified torque and locked at the facto-
ry. Vibrations and shocks, in particular during the initial operating hours, can loos-
en bolted joints.

With new machines, all screw connections are to be checked for their tight
seat after approx. 30 operating hours.

Check all the bolted joints regularly for tightness, and definitely before the
start of the spreading season.
Some components (e.g. spreader vanes) are mounted with self-locking nuts.
When mounting these components
always use new self-locking nuts.
12.2.3 Checking the flat springs of the spreading discs
n
CAUTION
Risk of material damage: Do not bend flat springs
The flat spring tension must lock the main and extension vane reli-
ably onto the spreading disc via the locking bolt. If the flat springs
are bent, they lose the tension required to secure the spreading
vanes.
If the flat spring tension is too low, the locking bolt becomes
unlatched and can cause a high level of material damage.

When setting the spreading vane position, press the lock-
ing bolt
carefully into any position drill hole.
 Replace flat springs immediately if they have too little
spring tension .