TM-9-2815-225-34-P
ENGINE, DIESEL: 6 CYLINDER IN-LINE TURBOCHARGED, CUMMINS MODEL NTC-400
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST
JULY 2005
TM-9-2815-225-34-P - Page 392 of 736
TM 9-2815-225-34&P
0043 00
0043 00-8
CYLINDER HEAD AND CYLINDER HEAD COMPONENTS INSTALLATION (Contd)
ENGINE BRAKE RETARDER
NOTE
The following procedure covers installation of one engine brake
retarder. Installation of remaining engine brake retarders are
similar.
1.
Install new gasket (11) on rocker arm housing (13).
2.
Install engine brake retarder (3) on two rocker arm housing studs (14).
3.
Install fan bracket (1) and two spacers (5) on two rocker housing studs (14).
4.
Install six nuts (2) on rocker housing studs (14). Tighten nuts (2) 60 lb-ft (81 N
•
m) in sequence
shown in figure 4.
NOTE
The following procedure covers adjustment for one slave piston.
There are two slave pistons per brake retarder, or one per
cylinder. The adjustment for the remaining five slave pistons is
similar. Ensure locknuts are loose before adjusting setscrew.
The adjustment procedure for slave piston requires engine
crankshaft to be rotated and accessory drive pulley assembly
positioned on timing mark A, B, or C. When positioned at
timing mark A, cylinders No. 5 or 2 can be adjusted. When
positioned at timing mark B, cylinders No. 3 or 4 can be
adjusted. When positioned at timing mark C, cylinders No. 6 or
1 can be adjusted.
5.
Loosen locknut (8) and setscrew (9) until there is no pressure or tension.
6.
Using feeler gauge, check slave piston (12) clearance between slave piston (12) and crosshead (4).
Adjust clearance to 0.018 in. (0.457 mm).
CAUTION
After slave piston adjusting screw locknut has been tightened
to specified value, check clearance with feeler gauge again. Do
not overtighten adjusting screw locknut or clearance may
change and result in damage to engine.
7.
Tighten locknut (8) 40 lb-ft (54 N
•
m).
8.
Using feeler gauge, recheck slave piston (12) clearance.
9.
Connect spade end of solenoid harness (7) to solenoid valve (6).
10.
Connect receiver end of solenoid harness (7) to terminal (10) inside engine brake retarder (3).
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