Exhaust Brake Assembly - Detroit Diesel MBE 4000 Service Manual

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2. Remove the exhaust brake cylinder from the bracket.
[a] Remove the mounting bolt, locknut, spacer, and washers from the exhaust brake
cylinder. Discard the locknut.
[b] Remove the locking element from the ball socket.
[c] Separate the ball socket from the adjusting lever.
[d] Remove the cylinder from the bracket.
3. Check the end play (movement back and forth) and radial play (movement up and down)
of the exhaust brake shaft. If there is too much play in either direction, the shaft is worn
and must be replaced. Listed in Table 7-1 are the acceptable ranges.
End Play (axial play)
Radial Play
Table 7-1
4. Remove the adjusting lever.
[a] Remove the hexnut and bolt on the adjusting lever to release the clamping pressure
on the exhaust brake shaft.
[b] Lift the adjusting lever off the shaft, taking care not to damage the splines of the shaft.
5. Remove the two bracket mounting bolts that secure the bracket to the exhaust brake valve
housing. Remove the bracket from the valve housing.
6. Remove the bolts that fasten the exhaust brake valve (butterfly valve) to the shaft. Remove
the exhaust brake valve from the brake valve housing.
7. Using a suitable drift, press the shaft, and its integral front bushing, out of the brake
valve housing.
8. Using a suitable drift, press the rear bushing out of the brake valve housing.
7.2.3
Assemble the exhaust brake unit as follows:
All information subject to change without notice.
6SE412 0403 Copyright © 2004 DETROIT DIESEL CORPORATION
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Description
Exhaust Brake Shaft Specifications

Exhaust Brake Assembly

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0.4 - 0.7 mm (0.016 - 0.028 in.)
0.200 - 0.263 mm (0.00787 - 0.01035 in.)
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MBE 4000 SERVICE MANUAL
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mm (inch)
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7-9