Detroit Diesel 4000 Series, Руководство по обслуживанию, Страница: 1798 / 2706

SERIES 4000 12/16V SERVICE MANUAL
Inspection of Front Oil Seal
Perform the following inspections (listed in Table 156) for the front oil seal:
Part Description Wear Limit
Front oil seal (1), see Figure 1085 Replace front oil seal
Rear oil seal (4), see Figure 1087 Replace rear oil seal
Table 156 Inspection Criteria for Wear Sleeve
Inspection of Pulley
Perform the following inspections (listed in Table 157) for the pulley:
Part Description Wear Limit
Pulley (7), see Figure 1086
3
Pilot bore for bearing retainer must be free of
nicks that extend above the pilot surface.
3
Flat surface(s) that mate with bearing retainer
must be free of nicks that extend above the
surface.
3
Pulley grooves must not be severely worn or
damaged.
Table 157 Inspection Criteria for Pulley
Inspection of Rear Bearing Retainer
Perform the following inspections (listed in Table 158) for the rear bearing retainer:
Part Description Wear Limit
Bore for rear bearing (3), see Figure 1085
For large bearing 6.6921 in. (169.9793 mm) and 5.7079
in. (144.9807 mm) diameter maximum
Bore for rear oil seal (4), see Figure 1085 5.1265 in. (130.213 mm) diameter maximum
General
3
Bearing bore must have straight sides, square
bottom, and not be oval due to wear.
3
Oil seal bore must not have nicks that extend
above the bore surface. All sealants must be
removed.
3
Flat surface that mates with pulley must be free of
nicks that extend above the surface.
3
Pilot diameter for pulley must be free of nicks that
extend above the pilot surface.
Table 158 Inspection of Criteria for Rear Bearing Retainer
All information subject to change without notice.
C -1652
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