Page 104 - CTS - Mechanic Diesel - TP
P. 104

MECHANIC DIESEL - CITS




           4  Loosen the nuts/fixing clip (7) of the lower portion (10) of the air cleaner.  Fig 1
           5  Remove the bowl (8) from the inlet manifold.
           6  Drain the oil from the bowl (8) and clean the sludge.
           7  Using a piece of cardboard, block the opening of the air intake on the inlet
              manifold to avoid entry of foreign material.
           8  Pour a little diesel/ kerosene over the air cleaner element (5).  Hold it in
              vertical position.  Rotate and stir the element by hand until all the dust is
              absorbed by the oil.  Drain the used oil.  Repeat the procedure until all the
              dust or dirt is removed from the wire mesh.
           9  Blow compressed air  under reduced pressure over the wire mesh from the
              opposite side and dry the element.
           10 Clean the bottom case (bowl) (8) of the air cleaner with diesel/kerosene and
              wipe with clean cloth.
           11 Check the filter element and the wire mesh for damage and clogging of
              dust.  If damaged, replace with a new one.
           12 Check the gasket ring (6) and clean it;  if damaged replace the gasket ring.
           13 Check the threads of the top cover mounting bolts/wing-nut (1).
           14 Check the air cleaner bowl (bottom case) for damage.
           15 Mount the bowl (bottom portion) on the engine manifold  by tightening the
              fixing nuts or bolts of the clip (7).
           16 Refill  the  air  cleaner  bowl  /housing  up  to  the  oil  level  mark  with  clean,
              recommended grade of oil.
           17 Place the gasket (9) and install the filter element (5) in the  housing bowl(8).
           18 Place the gasket ring (6) and fit the cover (2) by tightening the wing-nut (1).

           19 Start the engine and check the performance of the engine for smooth running.



           TASK 3: Servicing charge air cooler (Fig 1)
           1  Remove charge air cooler mounted along side or
              a head of radiator by removing the bolts.        Fig 1
           2  Disconnect hose pipe connection from both LHS
              & RHS.
           3  Clean external fins by controlled water jet.
           4  Clean interior passage by pressurised water and
              dry the same.
           5  Check for leaks by blocking one end and applying
              air  pressure  in  the  other  end  and  dip  the  CAC
              completely in water.
           6  Look for leaking air bubbles.

           7  If  there  is  a  leakage  follow  the  manufacturer’s
              guide line to repair it.
           8  If leakage from welded joints and severe, this may have to be replaced.
           9  Refit the cleaned & tested CAC and connect the silicon hoses.

              CAC is made of aluminium & fins are welded - needs adequate care in handling.









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                                    CITS : Automotive - Mechanic Diesel  - Exercise 5.1
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