Engine Bolting and Unions
Inspection / Checking
A5.05. 03.07.01.00
M20
en / 13.06.1997 IB001402 1/1
03
Ĺ
See also: 02.02.01.nn
Spare parts list: B1.05.06.2.7210, B1.05.07.2.8510
Time requirement: 0 Pers./ 0,00 h
Personnel qualification: skilled engine hand
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Operating medium: Heavy fuel and distillate fuel
Inspection:
of all bolts, unions and screwed connections for good fitting and leaks.
Note:
This precautionary measure has to be taken once to detect any leaks and/or slack screwed
connections that might result from some parts or gaskets taking a set that could cause
damage.
When starting up a new plant (150 h) and/or after major repairs, the engine unions and
screwed connections have to be inspected for good fitting and leaks.
Sequence of operations:
1. Check the flanged connections, filter thermostats and pipe clamps of the followinf systems
for good mounting and leaks:
• Cooling water
• Lubricating oil
• Fuel
• Exhaust gas
• Starting air
• Pneumatic control
2. Retighten the fixing bolts of the brackets for the injection pump control rod and check
the locking washers and pins of the linkage.
3. Check the monitoring and control equipment for good fitting. Cables and signal lines must
not scrape against any part.
4. Check the foundation bolts by knocking. Measure the crank web deflection after tightening
slack foundation bolts (02.02.01.nn).
Consult MaK aftersales service for tightening values.
5. Check the elastic bearing elements for damages.
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