FPM Agromehanika 627 113C, User Manual And List Of Spare Parts

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FPM AGROMEHANIKA | 19
6. ADJUSTMENTS AND MAINTNANCE
For tightening the cutting discs, it is necessary to tighten the screw
(Q) (figure 51) with a torque of 18 daNm.
When mounting the cutting discs under the nut (Q), use a spring
washer (R) for properly fastening the discs. It is always necessary to
install a protective washer (P) beneath the bearing, which prevents
dust and dirt from entering the cutting disc casing (figure 51).
6.1.1 Controlling the blades and cutting
discs
A) BLADES: They should be checked minutely before starting with
mowing. Quality cutting and good, safe work depend on well-sharp-
ened blades.
1. DAMAGED BLADES
Very rough, rugged, and damaged blade edges lead to:
- increased risk of accident;
- lower quality cutting;
- risk of damage to the cutter bar.
2. WORN-OUT BLADES
The width (B) of a worn-out blade, measured from the distance of
10 mm from the cutting disc edge must not be less than 3/4 of the
normal blade width.
The length of the oval opening (L) on the cutting blade must not
exceed 18 mm.
6.1 Discs and cutting blades
The discs, cutting blades, and blade carriers are of a very quality
build. The blades and blade carriers are made of a special steel alloy,
which is hardy and resistant to wearing, and therefore gives them a
long working life.
NOTE:
ONLY USE ORIGINAL PARTS AND THOSE RECOMMENDED BY
FPM AGROMEHANIKA.
After long use, the blades’ cutting edges start to get blunt, so that
the cutting quality will no longer be satisfactory. The blunted edges
of the cutting blades require increased power, while the stocks of the
mowed plants are uneven and rugged.
Before replacing the blades, clean the earth and dirt off the blade
carrier and nut, as shown under A in figure 50. Unscrew the nut and
remove the blade carrier from its bearing.
Two cutting blades are mounted onto each cutting disc, which
revolves clockwise, while the neighbouring disc revolves count-
er-clockwise.
When you have ascertained that the cutting blade edges have been
blunted, replace the blades on the neighbouring discs together,
since the blades have two edges.
It is possible to sharpen the cutting blade edges as long as the tem-
pered edge (thermally reinforced) remains, however it is necessary
to preserve the cutting edge angle. If the damage is great, the blade
must be replaced with a new one.
All discs should be adjusted in such a way that the blade axes take a
right angle (see figure 50).
For tightening the screw (A) (figure 50) which holds the cutting
blades, use a torque of 7.5 daNm.
DANGER!
BEFORE MAKING ANY ADJUSTMENTS, RE-
PAIRS, OR MAINTENANCE OF THE MOWER, SWITCH OFF
THE CARDAN JOINT POWER, TURN OFF THE TRACTOR,
TAKE OUT THE KEY, AND WAIT FOR THE REVOLVING
PARTS TO COME TO A HALT.
WARNING!
BEFORE DOING MAINTENANCE AND RE-
PAIRS TO THE MOWER REMOVE ALL FOREIGN OBJECTS
AND PARTS SINCE THEY CAN BE THROWN AT NEARBY
PERSONS.