Skip to main content

CUTTING PRACTICE - 01


 AIM: CUTTING PRACTICE.

TOOLS REQUIRED :                                                    

    1. STEEL RULE 

    2. SCRIBER 

    3. PRICK PUNCH 

    4. TRY SQUARE

    5. HACK SAW BLADE AND FRAME

    6. 12'' BASTARD FLAT FILE

    7. 6'' SMOOTH FLAT FILE

    8. BALL PEEN HAMMER

MATERIALS REQUIRED

 1. 52 X 48 X 6 M.S. FLAT

 2. MARKING BLUE

 3. CLEANING BRUSH

PROCEDURE:

    1. CUT THE WORK PIECE FROM GIVEN RAW MATERIAL AS PER THE SIZE OF 52 x 48 x 6mm.

    2. FILE ANY TWO ADJACENT SIDES MUTUALLY PERPENDICULAR TO EACH OTHER, BY USING A 12'' BASTARD FLAT FILE. ALSO CHECK THE PERPENDICULARITY BY USING A TRY SQUARE.

    3. THEN MARK THE WORK PIECE AT THE LENGTH OF 50mm AND HEIGHT OF 45mm. WITH THE HELP OF A VERNIER HEIGHT GAUGE.

    4. THEN MARK THE LINE FOR CUTTING AS PER THE GIVEN DRAWING BY PROPER METHOD.

    5. THEN PUNCH THE MARKED LINES BY USING A PRICK PUNCH AND A BALL PEEN HAMMER.

    6. AFTER THAT HOLD THE WORK PIECE TIGHTLY INTO THE BENCH VICE.

    7. FILE THE WORK PIECE INTO THE GIVEN DIMENSION OF 50mm. LENGTH AND 45mm. HEIGHT.

    8. THEN CUT THE WORK PIECE THROUGH THE PUNCHED LINES CAREFULLY BY USING A HACKSAW BALDE AND FRAME.

     9. AFTER COMPLETING THE WORK DEBURR ALL EDGES, THEN SUBMIT FOR THE INSPECTION

RESULT:

  THE CUTTING PRACTICE WAS COMPLETED SUCCESSFULLY AS PER THE GIVEN DRAWING

Popular posts from this blog

HEAD LIGHT CIRCUIT - WITHOUT RELAY

  AIM: HEAD LIGHT CIRCUIT WITHOUT RELAY TOOLS & MATERIALS REQUIRED: 1. Screw driver 2. Combination plier 3. Wire striper 4. Copper leg 5. Insulation tape 6. Head light switch 7. Dipper switch 8. Battery clips 9. Battery -12v 10. Head lamp - 12v DIAGRAM PROCEDURE: 1. ബാറ്ററിയിൽ നിന്നുള്ള +ve terminal head light സ്വിച്ചിലേക്ക് fuse വഴി connect ചെയ്യുക. 2. Head light switch ൽ നിന്നുള്ള out, dipper switch ന്റെ center point ലേക്ക് connect ചെയ്യുക. 3. Dipper switch ൽ നിന്നുള്ള dim, bright വയറുകൾ head lamp ലെ low, high beam വയറുമായി യഥാക്രമം connect ചെയ്യുക. 4. Head lamp ൽ നിന്നുള്ള -ve വയർ, ബാറ്ററിയുടെ -ve terminal ലുമായി connect ചെയ്യുക. RESULT : Head light circuit - without relay വിജയകരമായി പൂർത്തീകരിച്ചു

CENTRIFUGAL CLUTCH

MAIN PARTS 1. Fly wheel 2. Clutch plate 3. Clutch shaft 4. Pressure plate 5. Clutch spring 6. Bell crank lever 7. Centrifugal weight 8. Crank shaft CONSTRUCTION In this type of clutch, centrifugal force is used to keep the clutch in the engaged position. It is operated automatically depending upon the engine speed. It has a fly wheel, clutch shaft, clutch plate, pressure plate, bell crank lever and a centrifugal weight. The bell crank lever is fitted in to the pressure plate with the help of a lever is called bell crank lever. WORKING A simple diagram of a centrifugal clutch is shown in the above figure. When the engine speed increases, the centrifugal weight (A) fly off due to the centrifugal force. At the same time bell crank lever (B) presses the pressure plate(C) and the clutch plate (D) on the flywheel against the springs(G). This makes the clutch engaged. The torsion of spring (G) is designed for disengage the clutch below 500 r.p.m. So the power can't be transmit...

OVERHAULING OF HORN

Aim: OVERHAULING OFHORN & TUNING TOOLS REQUIRED : 1. SCREW DRIVER (-,x) 2. FEELER GAUGE 3. MULTY METER 4. 10mm D/E OPEN SPANNER MATERIALS REQUIRED 1. EMERY PAPER 2. COTTON WASTE 3. GREASE PROCEDURE Dismantling   Disconnect the wires from the horn assembly and remove the mounting nuts and take out the horn unit Remove the horn from the vehicle. Loosen the cover fixing screws. Remove the cover, packing washer, diaphragm assembly  and shim. Remove the terminal's nuts and washer. Remove the contact breaker assembly from the housing. Inspection Clean the contact breaker points with fine emery paper. If necessary, replace the points. Check the coil for continuity and resistance by an ohmmeter for 12 volt - 0.75 -0.85 ohm and for 24 volt - 3.25 -3.5 ohms. Replace the coil if found burnt or defective. Check the diaphragm visually, replace if it is found damaged. Check all the screw threads visually, and if necessary, replace the screws. Clean all the parts. Assembling ...