Working Card |
Mounting of Cylinder Head |
505-01.40 |
Page 1 (2) |
Edition 01H |
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08028-0D/H5250/94.08.12
L23/30H
Safety precautions:
Stopped engine
Shut-off starting air
Shut-off cooling water
Shut-off fuel oil
Shut-off cooling oil
Stopped lub. oil circul.
Description:
Mounting of cylinder head after inspection and/or overhaul.
Starting position:
Cylinder head is completely
assembled |
505-01.05 to 505-01.35 |
Valve gear of respective cylinder is in right posi-
tion (valve closed) |
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Control of the surface on the |
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cylinder liner |
506-01.45 |
Related procedure:
Adjustment of valve clearance |
508-01.10 |
Manpower: |
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Working time |
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1 1/2 |
hour |
Capacity |
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2 |
men |
Data: |
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Data for pressure and tolerance |
(Page 500.35) |
Data for torque moment |
(Page 500.40) |
Declaration of weight |
(Page 500.45) |
Special tools: |
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Plate no |
Item no |
Note |
52021 |
011 |
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52021 |
501 |
4 Pieces |
52021 |
155 |
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52005 |
014 |
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52010 |
011 |
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52021 |
251 |
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Hand tools:
Ring and open-end spanner, 14 mm. Ring and open-end spanner, 17 mm. Ring and open-end spanner, 24 mm. Lub. oil and copaslip.
Replacement and wearing parts:
Plate no |
Item no |
Qty/ |
50501 |
338 |
2/cyl |
50510 |
075 |
1/cyl |
50610 |
079 |
8/cyl |
51202 |
024 |
2/cyl |
51625 |
097 |
1/cyl |
51625 |
132 |
1/cyl |
95.50 - ES0S
505-01.40 |
Mounting of Cylinder Head |
Working Card |
Edition 01H |
Page 2 (2) |
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L23/30H
Check to be Done before Lifting
1)Check the jointing surfaces of the cylinder head/cylinder liner to see that they are clean and without damage marks, see working card 506-01.45. Fit new O-rings on the water passage, lubricate the O- rings with a little oil.
2)Check all contact faces on the cylinder head and nuts, including threads, and make sure that these are level and smooth and absolutely free from foreign particles.
Mounting of Cylinder Head
3) Attach the lifting tool, see fig 1, to the cylinder head that has been made ready for installation, and position it carefully on the cylinder liner.
Place the spacer ring around the nuts with the slot in such a position that the tommy bar can be used.
Tighten the hydraulic jacks and make sure that the cylinder of the jacks bears firmly against the spacer ring. Tighten up all the nuts, see page 500.40. For using the hydraulic tools, see working card 520-01.05.
7)If new studs or nuts have been fitted, the nuts
Fig 2.
must be tightened and loosened three times, in order to compensate for deformation of the thread and in order to ensure a safe minimum load of the studs through the tightening.
Fig 1.
Tightening of Cylinder Head Nuts
4)Make sure that the nuts run easily on the threads and that they bear on their entire contact surfaces.
5)Coat threads and contact faces with copaslip before fitting the nuts.
6)Screw nuts onto the studs and tighten lightly with the tommy bar.
Adjustment of Valve Clearance
8)Adjust the valve clearance, see working card 508-01.10.
9)Fit the pipes for fuel oil, lub. oil, cooling water and the flange for exhaust pipe.
Before Starting
10)Prior to starting up check for leakages. After starting up check for leakages and oil flow.
11)Mount the cover for rocker arm and the front cover for fuel pump.
08028-0D/H5250/94.08.12
95.50 - ES0S
Working Card |
Inspection of Cylinder Head Cooling Water Space |
505-01.45 |
Page 1 (2) |
Edition 01H |
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L23/30H |
Safety precautions: |
Special tools: |
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Stopped engine |
Plate no |
Item no |
Note |
Shut-off starting air |
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Shut-off cooling water |
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Shut-off fuel oil |
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Shut-off cooling oil |
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Stopped lub. oil circul. |
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Description:
Inspection of cylinder head cooling water space.
Hand tools:
Steel brush
Starting position: |
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The cylinder head dismantled |
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from engine |
505-01.00 |
Related procedure:
Manpower: |
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Replacement and wearing parts: |
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Working time |
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¼ |
hour |
Plate no |
Item no |
Qty/ |
Capacity |
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1 |
man |
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Data: |
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Data for pressure and tolerance |
(Page 500.35) |
Data for torque moment |
(Page 500.40) |
Declaration of weight |
(Page 500.45) |
95.50 - ES0S
505-01.45 |
Inspection of Cylinder Head Cooling Water Space |
Working Card |
Edition 01H |
Page 2 (2) |
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L23/30H |
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Inspection of Cylinder Head Cool. Water Space
1) Inspect the cooling water inlet at the bottom and the cooling water outlet at the top of the cylinder head, see fig 1.
2)Remove all possible deposits.
3)Pour water into the cooling water outlet and make sure that water is coming out of all the cooling water inlet bores at the bottom of the cylinder head.
4)If necessary, clean the cooling water inlet and outlet by means of a steel brush. Flush the cooling water space after cleaning.
5) Should the cylinder head cooling water space, contrary to expectation, be blocked with deposits, please contact MAN B&W Diesel, Holeby for further
instructions.
Fig 1. Cylinder Head
95.50 - ES0S