Detroit Diesel 4000 Series, Service Manual, Page: 1801 / 2706

SERIES 4000 12/16V SERVICE MANUAL
Part Description Wear Limit
Facing plates (9), see Figure 1087
3
Must pass between two plates surfaces 11X11
in. spaced 0.188 in. (4.7752 mm) apart, set at
45 degree angle. Facing grooves are 0.005 in.
(0.127 mm) minimum depth when new. Plate is
worn out at the bottom of the grooves.
3
Internal teeth must not be worn in excess of 0.005
in. (0.127 mm) per side and the tooth driving
contact surface must not be worn to a point or
to a wedge shape.
Table 166 Inspection Criteria for Facing Plates
Inspection of Steel Clutch Plates
Perform the following inspections (listed in Table 167) for the steel clutch plates:
Part Description Wear Limit
Steel clutch plates (8), see Figure 1087
3
Must pass between two plate surfaces 11X11
in. spaced 0.130 in. (3.302 mm) apart, set at a
45 degree angle.
3
Replace if wear on drive surfaces of the external
tangs exceeds 0.005 in. (0.127 mm) per side.
3
Minimum thickness: 0.121 in. (3.0734 mm).
3
Replace if tracked with grooves, darkened or
discolored by heat, damaged, or warped.
Table 167 Inspection Criteria for Steel Clutch Plates
All information subject to change without notice.
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