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 348 of 736

TM 9-2815-225-34&P
0041 00
0041 00-2
WATER PUMP (Contd)
DISASSEMBLY
1.
Remove screw (12), nut (15), washer (16), and idler pulley (18) with idler shaft (17) attached,
from water pump housing (10).
2.
Using puller, remove water pump pulley (1) from water pump shaft (8).
3.
Using puller, remove impeller (14) from water pump shaft (8).
4.
Remove seal (3) and retaining ring (4) from water pump housing (10). Discard seal (3) and
retaining ring (4).
5.
Remove water pump shaft (8) with two bearings (5), spacer (6), and retaining ring (7) attached
from water pump housing (10).
6.
Remove seat and seal assembly (13) and seal (19) from water pump housing (10). Discard seat
and seal assembly (13) and seal (19).
7.
Remove one large pipe plug (9) and two small pipe plugs (11) from water pump housing (10).
8.
Using bearing disassembly fixture, remove bearing (5) and spacer (6) from water pump shaft (8).
Discard bearing (5).
9.
Remove retaining ring (7) from water pump shaft (8). Discard retaining ring (7).
10.
Using bearing disassembly fixture, remove bearing (5) from water pump shaft (8). Discard
bearing (5).
11.
Using press and water pump bearing mandrel, remove sleeve (2) from water pump pulley (1).
Discard sleeve (2).
12.
Remove pipe plug (20) from idler pulley shaft (17).
13.
Remove seal (24) from idler pulley (18). Discard seal (24).
14.
Remove retaining ring (24), spacer (23), and O-ring (22) from idler shaft (17). Discard O-ring (22)
and retaining ring (24).
15.
Install idler pulley (18) with idler shaft (17) attached, in vise. Using a hammer and flat punch
inserted through pipe plug opening in idler pulley (18), remove idler shaft (17) with bearing (21)
attached, from idler pulley (19).
16.
Remove idler pulley (18) from vise.
17.
Using press and water pump bearing mandrel, remove bearing (21) from idler shaft (17). Discard
bearing (21).


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