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Page Title:
OIL PRESSURE REGULATOR HOUSING MAINTENANCE - continued |
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 TM 9-2320-361-24-1
0037 00
OIL PRESSURE REGULATOR HOUSING MAINTENANCE (Contd)
DISASSEMBLY
1.
Remove oil pressure regulator valve plug (6) and gasket (5) from regulator valve housing (1)
Discard gasket (5).
2.
Remove oil pressure regulator spring (4) and plunger (3) from regulator valve housing (1).
3.
Remove piston oil cooling control valve plug (7) and gasket (8) from regulator valve housing (1).
Discard gasket (8).
4.
Remove piston oil cooling relief valve spring (9) and plunger (3) from regulator valve housing (1).
5.
Remove plug (10) from regulator valve housing (1).
CLEANING AND INSPECTION
1.
For general cleaning and inspection instructions, refer to WP 0021 00.
Table 1. Oil Pressure Regulator Wear Limits.
ITEM NO
ITEM/POINT OF INTEREST
2
Inside Diameter of Plunger Bores in Housing
0.8030.804
20.39620.422
3, 10
Outside Diameter of Plunger
0.8000.801
20.32020.345
9
Piston Cooling Relief Valve Spring Free Length
1.620
41.148
4
Oil Pressure Regulator Spring Free Length
4.650
118.110
2.
Inspect bores (2) for burrs, scratches, or wear. Refer to table 1, Oil Pressure Regulator Wear Limits,
for measurements. Remove burrs and scratches with crocus cloth. Replace if excessively burred,
scratched, or worn.
3.
Inspect oil pressure regulator spring (4) for distortion, cracks, and collapsed coils. Refer to table 1,
Oil Pressure Regulator Wear Limits, for measurements. Replace oil pressure regulator spring (4) if
distorted, cracked, coils are collapsed, or worn.
4.
Using spring tester, compress oil pressure regulator spring (4) to 3.44 in. (87.38 mm). Load
measured should be 24.628.6 lb (11.1713.0 kg). Replace oil pressure regulator spring (4) if not
within limits.
5.
Inspect piston cooling relief valve spring (9) for distortion, cracks, collapsed coils, or wear. Refer to
table 1, Oil Pressure Regulator Wear Limits, for measurements. Replace piston cooling relief valve
spring (9) if distorted, cracked, coils are collapsed, or worn.
6.
Using spring tester, compress piston cooling relief valve spring (9) to 1.38 in. (35.05 mm). Load
measured should be 6.958.35 lb (3.163.79 kg). Replace piston cooling relief valve spring (9) if not
within limits.
7.
Inspect two plungers (3) for nicks, burrs, or scratches. Refer to table 1, Oil Pressure Regulator
Wear Limits, for measurements. Replace plungers (3) if nicked, burred, scratched, or worn.
0037 00-2
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