MAINTENANCE:
Maintenance
of machineries is very important for any type of industries and it is a must
for a knit composite mill. All machines and machines parts of knitting, dyeing
and garments are maintained with extreme care. Because production quality and
quantity, both depends on the maintenance with regularity. MONDOL FABRICS LTD.
leads maintenance with a troop of skilled mechanical fitters.
MAINTENANCE OF MACHINERY:
In
the knitting floor of MONDOL FABRICS LTD. all circular and flat knitting m/cs
are maintained regularly and as necessity requirements. Here, different type of
maintenance of machinery, which is taken, different time on the machineries.
ROUTINE:
1) Daily Maintenance:
Every
m/c is taken maintenance daily by the operators during production. When a
production is started by the operator after handing over from previous shift
operator, he takes a routine maintenance on the m/c. He cleans the m/c ,
assures yarn is fed to all needles, cleans the eye pot of feeder, signal lamp,
sensor etc. Before a while of a roll cut from batch or cloth roller, operator
cleans needles, cylinder base plate etc.
2) Schedule/Routine Maintenance:
Every
machine has a schedule of maintenance of 10 or 15 days. According to date,
schedule maintenance is taken on the machines. Operators are informed about the
time of maintenance. After pre- estimated production, they hand over the m/c to
the fitters. Thus, fitters assure all machines are OK for any time.
3) Break down maintenance:
When
product quality hampered and to complete production in due time break down
maintenance is taken. There are many faults seen in the fabric during
production due to needle, sinker, take down roller etc. Then operators inform
the mechanical fitters and they fix it.
4) Restorative maintenance:
Restorative
maintenance is taken for design change or new design development. According to
advice or order of a production officer, a machine is fixed for new design and
mechanical fitters rearrange cam and needle system.
MAINTENANCE OF CIRCULAR KNITTING M/C:
Lubrication:
It
is recommended that the instructions given in the lubrication charts be
followed conscientiously.
Oiling needles:
Oiling of needles should be properly. The
supply of oil should be reduced if light oil striper appears on the fabric.
Since the life of the m/c and its correct working depend to a large extend
adequate and proper.
The cleaning of needle:
Thin
oil most suitable for this work, about one point heated to a temperature not
exceeding 1600F
poured into the oiling position of the cylinder & dial cam races & in
the heads of the needles while the m/c is running.
General cleaning schedule:
Long
m/c life, maximum output & trouble free running depend upon proper care and
maintenance. A general overhaul should take place annually when single shifts
are worked & correspondingly at more frequent interval. When extra shifts
are worked. The overhaul involves removal of all cam section and removal of
needles from their tricks, so that the tricks should be thoroughly the cleaned.
Before parts are replaced they should be adequately lubricated.
MAINTENANCE PROCEDURE:
1) For
there is any mechanical fault of machine, which is responsible for production
hamper, operator informs mechanical fitters in duty. Mechanical fitters come
and observe the problem firstly, and they begin to fix it.
2) If
mechanical fitters are unable to fix it, then they inform technical in-charge,
he then comes in spot and fixes it.
3) For
there is any electrical problem of m/c or
serious founding mechanical problem, mechanical and electrical
department are informed, they come and fix the problem. They commence at work
after informing of knitting manager.
4) For
restorative maintenance, production officer orders mechanical fitters to fit
required m/c for cam and needle arrangement and other necessary requirements in
case of new design development.
MAINTENANCE
TOOLS/EQUIPMENTS & THEIR FUNCTIONS:
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Tools/equipments
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Functions
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1.Adjustable wrench
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Used for setting nut & bolts
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2.Air suctioner
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For cleaning machine
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3.Spanner
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Fixed spanner for nut & bolts fitting
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4.Socket spanner
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5.Hammer
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To apply load where required
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6.Screw driver
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To release any screw
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7.Punch
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Used to fit any worn out shaft
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8.Lock opener
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9.Hack saw
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To cut any metallic thing
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10.Outside clipers
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11. Inside clipers
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To measure inside dia
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12.Cutting pliers
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To cut thin wires
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13.Pulley key
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To loosen pulleys
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14.Air gun
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To clean the machine
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