Detroit Diesel 4000 Series, Руководство по обслуживанию, Страница: 43 / 2706

SERIES 4000 12/16V SERVICE MANUAL
When installing O-rings with counter-rings in coolant pumps, always follow the installation
instructions.
3 O-rings must be installed in shaft grooves without twists. To remove twists, pass a rounded
marking tool under the sealing ring along the circumference (if O-ring diameter is
sufficiently large).
3 Before shaft seal installation:
3
The sealing lip of the shaft seal (except teflon-type seals) must be coated with
petroleum jelly and the shaft running surface with thin-film lubricant or engine oil.
3
Teflon seals used in the front and rear main seals must be installed dry.
3
The outer surface of metal outer jackets in the support bore must be coated with
surface sealant, unless otherwise specified in the drawing. For elastomer outer
jackets or combined metal/elastomer outer jackets, the outer surface must be coated
with denatured ethanol.
3 Sealing compound must be used to fix the position of flat gaskets. Sealing compound is to
be thinly applied in spots on the flat gaskets or mating faces. Immediately after application
of the sealing paste, the flat gaskets must be fitted to the component and then, no more than
20 minutes later, the seal components mated together. Oil, multi-purpose grease, or other
materials, must not be used to fix the position.
3 Before installing antifriction bearings, lightly lubricate the bearing seats. To avoid bearing
contamination, only remove the bearings from their original packaging immediately before
installation. Do not remove the corrosion inhibitor from the bearings in the original
packaging. Use petroleum spirits or acid-free kerosene to clean the antifriction bearings.
After cleaning, lubricate the bearings again with engine oil.
During assembly, do not apply axial forces to antifriction elements and do not hit the bearing
rings with a hammer. Use assembly aids.
Do not use an open flame to heat bearing inner races. The temperature should be between 80 C
and 100 C (176 - 212 F). It must never exceed 120 C (248 F).
All information subject to change without notice.
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