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www.lofrans.com
Problem Possible causes Solution
5. The electric engine
runs, the shaft rotates
Up, but does not rotate
Down
5.1 The chain locker is tangled;
therefore, the emergency mechanism
becomes operative.
5.2 The chain is of poor quality with
burrs and zinc deposits that do
not allow the free ow of the links;
therefore, the emergency mechanism
becomes operative.
5.3 The chain was placed in the locker
in block and the links are stuck with
each other; therefore, the emergency
mechanism becomes operative.
5.4 Wear of the emergency mecha-
nism of the spring control.
5.5 The chain stripper interferes with
the gypsy: it is possible to weigh
the operation, while to lower, the
emergency mechanism becomes
operative.
5.1 Check out that immediately after the anchor there is a joint
that allows the chain to unfold properly when weighed.
5.2 Remove the chain from the locker and inspect it link by
link. Intervene with the appropriate tools to make it as loose as
possible and free of obstructions.
5.3 Lower manually all the chain in a sea bed deep enough to
enable it to unfold properly. Retrieve it with the winch.
5.4 A (SERVICE) Uninstall the winch from the boat and
disassemble it into its parts by replacing the spring. Take
advantage of this opportunity to replace any other worn parts,
gaskets, screws, tabs, seeger, and oil.
B (SERVICE) It is possible to block the EMERGENCY
MECHANISM so that the gears are always engaged both in
UP and in Down. This operation must be authorized by the
shipowner. The solution rules out completely the possibility of
carrying out the emergency operation.
5.5 Restore the condition of the chain stripper by
repositioning properly in the gypsy centreline.
If it is deformed. It must be replaced.
6. The electric engine
runs but it cannot be
bell warped.
6.1 The bell warp is being used
wrongly; therefore, the emergency
mechanism becomes operative
6.1 To carry out the warping operation the main shaft must run
in the same rotation direction of the winch gypsy when it weighs
the chain.
7. The winch cannot be
weighed: the electric
engine runs, the shaft
runs, but the gypsy is
still although the brake
belt is loose.
7.1 The gypsy is not closed on the
clutch cones and slips under the load
effect, or for some reason the closing
wheel is at end stroke. Check out all
pieces in sequence.
7.2 The clutch cones or the gypsy
cones are deformed and the clutch
hubs are in contact and prevent
closure.
7.1 Check out clutch tightening. If necessary, measure the parts
and check out possible deformations. It is possible to add some
thickness to stem the problem. Then replace the damaged parts.
7.2 Replace the clutch and/or the gypsy
8. The shaft does not
run well, is not aligned,
and so is the gypsy
and/or the bell.
8.1 The shaft bent because the winch
was subjected to an excessive load.
8.1 Check out that the procedures of use fall within the
specications of the winch.
(SERVICE) Uninstall the winch and replace the shaft. Take this
opportunity to replace worn parts, gaskets, seeger, tabs and oil.
9. Loss of oil between
the engine and the
gearbox body
9.1 The coupling of the engine is
loose and causes the worm screw into
an irregular rotation, leading to loss of
oil from the gasket.
9.1 (SERVICE) Find the reasons why the screws or nuts have
become loose. Uninstall the engine and check out the status
of the spindle and the hole of the worm screw. If an oval form
of the cylindrical part of the screw is observed (outer hole and
diameter) uninstall the winch and repair the damaged parts on
the bench. Check out if the oil has entered into the electrical en-
gine. Take this opportunity to replace all gaskets, tabs, seeger,
screws, oil, and any worn parts.
10. On installation, it
is found that the shaft
and the studs are short
for a correct coupling
with the gearbox.
10.1 The request referred to the deck
thickness was wrong.
10.1 If the key shaft works in the gearbox along all its length, the
xing studs can be adapted. Otherwise, a longer shaft must be
requested.
UK