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 310 of 736

TM 9-2815-225-34&P
0034 00
0034 00-2
SOLENOID VALVE (Contd)
DISASSEMBLY
1.
Remove four screws (10), electrical solenoid (9), shutoff valve shield (8), rectangular ring seal (7),
shutoff valve spring (6), and valve disc (5) from valve body (2). Discard rectangular ring seal (7),
shutoff valve spring (6), and valve disc (5).
NOTE
Turn knob and shaft clockwise. Threads on shaft will act as a
puller.
2.
Remove shutoff valve knob (1) from shutoff valve shaft (3).
3.
Remove shutoff valve shaft (3), with O-ring (4) attached, from valve body (2). Discard O-ring (4).
4.
Remove plug (11) from valve body (2).
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 that is
outside specified wear limits.
3.
Wipe electrical solenoid (9) clean with lint-free cloth.
4.
Inspect valve seat on valve body (2) for wear, bonding separation, failure, and corrosion. Discard
valve seat if damaged or worn.
5.
Using micrometer, measure width of valve seat. Discard valve body (2) if width of valve seat is
less than 0.015 in. (0.381 mm).
6.
Using multimeter, check electrical solenoid (9) resistance between long terminal and base. Discard
electrical solenoid (9) if resistance is not within 28–32 ohms.
ASSEMBLY
1.
Apply light coat of lubricating oil to new O-ring (4) and shutoff valve shaft (3), and install O-ring
(4) on shutoff valve shaft (3).
2.
Turn shutoff valve shaft (3) in valve body (2) until it reaches bottom of bore.
3.
Using depth micrometer, position shutoff valve shaft (3) tip 0.118 in. (2.997 mm) from face of
valve body (2). Adjust shutoff valve shaft (3) until correct clearance is obtained.
4.
Without moving shutoff valve shaft (3), press shutoff valve knob (1) on shutoff valve shaft (3) until
fully seated.
5.
Install new valve disc (5) in valve body (2) with rubber side toward valve body (2).
6.
Apply lubricating oil to new rectangular ring seal (7) and install in valve body (2).
7.
Install new shutoff valve shaft spring (6) in valve body (2) with concave side up.
8.
Install shutoff valve shield (8) and electrical solenoid (9) on valve body (2) with four screws (10).
Tighten screws 25–30 lb-ft (34–40 N
•
m).
9.
Install solenoid valve (WP 0040 00).


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