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

  TM-9-2815-225-34-P - Page 274 of 736

TM 9-2815-225-34&P
0029 00
0029 00-2
ACCESSORY DRIVE AND ACCESSORY DRIVE PULLEY (Contd)
DISASSEMBLY
1.
Using 3/8 in. (9.525 mm) cold chisel, split and remove sleeve (2) from accessory drive pulley (1).
Discard sleeve (2).
2.
Remove screw (12) and washer (11) from accessory drive shaft (5).
CAUTION
Install screw in accessory drive shaft when using puller.
Failure to do so may result in damage to accessory drive
shaft.
3.
Install screw (12) in accessory drive shaft (5). Using puller, remove spline coupling hub (10) from
accessory drive shaft (5). Remove screw (12) from accessory drive shaft (5).
4.
Remove washer (9) and thrust bearing (8) from accessory drive shaft (5). Discard thrust
bearing (8).
5.
Remove accessory drive shaft (5), with accessory drive gear (3) attached, from accessory drive
housing (6).
6.
Using press and mandrel, remove accessory drive gear (3) and thrust bearing (4) from accessory
drive shaft (5). Discard thrust bearing (4).
7.
Remove two dowel pins (14) from accessory drive shaft (5).
8.
Using press and mandrel,
remove bushing (7) from accessory drive housing (6). Discard
bushing (7).
9.
Remove threaded plug (13) from accessory drive housing (6).
CLEANING AND INSPECTION
1.
For general parts cleaning information, refer to CLEANING, WP 0051 00.
2.
For general parts inspection information, refer to INSPECTION, WP 0051 00.
NOTE
Replace any part that does not pass visual inspection or is
outside specified wear limits.
3.
Inspect front accessory drive pulley (15) and accessory drive pulley (1) for cracks and chips in
hub, worn grooves, and distorted thread holes.
4.
Inspect accessory drive housing (6) for cracks, stripped threads, or damaged holes. Repair any
damaged threads.
5.
Inspect accessory drive gear (3) and spline coupling hub (10) for cracks, chipped or stripped teeth,
and uneven wear.
6.
Using a micrometer or equivalent, measure accessory drive shaft bushing surface outer
dimension (16). Discard accessory drive shaft (5) if accessory drive shaft bushing surface outer
dimension (16) is less than 1.310 in. (3.327 cm).
7.
Inspect accessory drive shaft (5) for elongated dowel pin holes and stripped threads. Repair all
damaged threads.
8.
Inspect two dowel pins (14) for cracks, chips, and distortion.


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