398 DIAMOND LOGIC® EN GINE BRAKE
Figure 633 Brake actuator lash locknut
2. Remove brake actuator lash locknut.
Figure 634 Removing brake a
ctuator p is to n
3. Use screwdriver to remove brake actuator piston
assembly from the high-pressure oil rail.
Figure 635 Brake actuator piston assembly
4. Install new brake actuator piston assembly.
5. Final lash adjustments will be made after the
high-pressure oil rail is installed on cylinder head.
NOTE: Install valve cover after completing final brake
lash adjustments. See Valve Cover (Valve Cover,
page 152) in the “Cylinder Head and Valve Train”
section of this manual.
EGES-265-2
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
© 2009 Navistar, Inc.
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