Fransgard FKR-125 HY User manual
Fransgård
Manual
GB
Chainmulcher
FKR-125 HY
Serial no. 62180086→
1
TABLE OF CONTENTS Page
Technical data..............................................................1
Foreword ......................................................................1
Venting of engine..........................................................1
Assembly and commissioning ......................................2
Safety regulations.........................................................3
Use of the machine.......................................................4
Working position...........................................................4
Maintenance.................................................................4
Replacing chains..........................................................4
Ordering spare parts.....................................................4
Declaration of conformity..............................................5
TECHNICAL DATE
Working width...................................................... 1.25 m
Working speed................................................ 6-10 km/h
Power requirement .........................from approx. 120 L.
Working pressure .......................................from 180 bar
Number of chains ................................. 2 x 10 or 13 mm
Weight .................................................................340 kg.
Foreword
The FKR-125 HY chain mower from Fransgård is designed to remove bushes, heather
and small trees, primarily on remote forest roads. The chain mower has proven to be
a cost-effective and efficient piece of machinery for removing self-sowed vegetation.
The remaining stumps become very frayed and dry up very quickly.
Venting of engine
It is important that when first starting the engine, the latter and the entire hydraulics
system are thoroughly vented; this is achieved by running the engine briefly (approx.
15-20 seconds), waiting for a few minutes so that the air in the tank can rise to the
surface and the oil is free of air, and repeating this process between 3 and 5 times
depending on the length of the hose.
2
Mounting and instructions for piston engines:
All types of hydraulic engines can experience cavitation, such as when the oil supply is shut
off.
This is especially likely to happen with high revolutions or with heavy loads.
Regardless of the type of valve, we recommend that bypass valves and drainage hoses are
always used on piston engines.
As soon as a valve is closed without a bypass valve and drainage, the pressure becomes too
great at both ports and the shaft seal will be shot out. The worst case scenario is that
cavitation occurs in the engine to such a degree that it breaks down.
We recommend that the hose dimensions comply with our flow diagram. See Fig. 1.1
Fig 1.1
Recommen-
ded for
Suction
Recommen-
ded for
Return
Recommen-
ded for
Pressure
3
Prior to starting piston engines, the housing should be at least 50% filled with oil.
See Fig. 1.2
The engine should be started with no pressure until the air is out of the system. It would be
appropriate to perform brief start-ups lasting between 10 and 20 seconds so that the air can
rise to the surface of the tank. This should be carried out 3-4 times, depending on the distance
of the houses and tubes. After venting, you should gradually increase the pressure to the
manufacturer’s level.
FIG 1.2
It is important that the pressure in the housing/drainage hose does not exceed the
manufacturer’s recommended level. (Max 2.7 bar)
4
Mounting and commissioning
Prior to assembly, the engine manufacturer's specifications must be read through and
complied with as there is otherwise a risk the engine will be damaged.
Check that the hydraulic hoses are the correct size and that they have sufficient free
movement in relation to the machine on which they are mounted.
On machines on which Fransgård FKR-125 chain mowers are mounted, there must be 1 x
pressure outlet, 1 x return outlet and 1 x drainage outlet for the drainage oil pipe, and the
drainage hose should go directly to the tank, inserted below the oil level, and be located as
far as possible from the pump’s suction pipe.
The pressure on the drainage hose must not exceed the engine manufacturer’s
recommended level.
P = Pressure connect T = Tank connection / return Drainage = to tank.
Drainage connecting pieces
Circuits on freewheel block
Pressure, min. 120L/min, 1” hose
Return, min. 120L/min, 1½” hose
Rotation = Clockwise
Max. 2.7 bar
5
SAFETY REGULATIONS
It is obligatory to read through the instructions for use before commissioning.
All the guards must be in place and checked before the machine is started up.
Beware of projected stones. It is the owner's / user's responsibility to ensure
that there are no people or other living things within the machine's working area
when the machine is started up; if this happens while the machine is in use, it
must be stopped immediately and the individuals moved away.
Safety distance / risk zone is a 50 m radius from the machine.
The cab must not be left unattended when the machine is in use.
The machine is designed to remove small trees, bushes and small foliage and must
not be used for anything else.
The machine must only be operated by trained individuals.
When being operated in more densely populated areas, caution should be taken with
the machine’s risk zone.
Lubrication, adjustment and setting of the machine must only be undertaken when the
latter has stopped and the power has been switched off. The key must be removed
from the tractor so that the latter cannot be started.
When driving on very dry terrain, be aware that the chains can cause sparks, with a
subsequent risk of fire, if they rub against stones or rocks.
Never drive so fast that it is impossible to stop if an obstacle arises.
Tighten bolts and check settings after every 7 hours of operation.
The machine must only be started up when the impactor head is in the lowered
and horizontal position.
Large foreign objects that may present a danger must be removed from the area where
the machine is to be used.
The rubber protection plate that sits behind the cutting head is subject to wear and tear
and must be replaced when it begin to crack or show signs of wear and no later than
every third year.
The chain and the chain case are subject to wear and tear and must be examined at
regular intervals, at least after every 7 hours of use, and then tightened.
The chain must be replaced if it has worn down to 2.0 mm below the nominal dimension
(10 mm or 13 mm chain). If the mounts that hold the chains are worn to 2.0 mm below
the nominal dimensions (10 mm), these must be replaced.
If the chain needs to be replaced, it must be ensured that it is in the right position and
is the same length on each side of the chain case; only a long chain that goes through
the chain case may be used, and the length must be adapted so that with a 10 mm
chain, the locking fork sits above the 18th link, and above the 13th link with a 13 mm
chain. It is possible to store a small additional chain inside the chain case.
6
Use of the machine
The cutting head is guided out to the side and lowered to the desired position with the
help of the hydraulics. Remember to ensure that no people or other living things
are inside the risk zone before the machine is started up, then drive forward slowly
and adjust the speed to the condition of the vegetation.
WORKING POSITION
The machine must only be started when the stroke head is in the lowered position.
Prior to commissioning, the chains must be examined for damage and replaced if
necessary.
(see safety regulations.)
Operate the machine so that it rests more on the rearmost part of the stroke head
rather than the frontmost part.
Try not to force the machine through dense and rough vegetation, rather operate at
the speed that gives the best and most effective processing, as this extends the
machine’s lifetime and reduces the use of spare parts.
MAINTENANCE
As the machine may be exposed to major influences, it is important to look for loose
parts and tighten bolts after every 7 hours of operation.
The machine should be examined for any damage, and if damage is found on any
parts that can be replaced with spare parts, this should be done. Any damaged found
must be repaired properly and professionally.
REPLACING CHAINS
When leaving the factory, the machine is equipped with 10 mm chains, although 13
mm chains can be used if desired; this requires that the 4 mounts that fix the chains in
the chain box are replaced with mounts with 13 mm slots.
The 4 x M16 locking nuts and M16 x 100 Allen bolts are removed, then the bottom disc
in the chain case can be removed together with the mounts that hold the chains, check
the discs and mounts for damage and replace if necessary, (see safety regulations
below). New locking nuts are to be used and if the Allen bolts (M16 x 100 - 10.9) are
damaged, these must also be replaced. Two long transverse chains are to be used (2
chains, not 4).
ORDERING SPARE PARTS
Any order for spare parts must contain the following information:
1. Machine type and serial no. and year.
2. Spare part number – description - any dimensions and quantity of desired parts.
Only original spare parts from Fransgård may be used.
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