JUNCTION BLOCK 8W3991 - Caterpillar

Illustration 1 g02555281
Top view of engine
Table 1
Specification for 352-8583 Air Shutoff Gp
Item Qty Part Specification Description
1 1 6V-4589 O-Ring Seal Before assembly, lightly lubricate the bore with 5P-3975 Rubber Lubricant.
Illustration 2 g02555282
Rear view of engine
(2) Air shutoff valve and mounting
Table 2
Specification for 352-8583 Air Shutoff Gp
Item Qty Part Specification Description
3 1 6V-5048 O-Ring Seal Before assembly, lightly lubricate the bore with 5P-3975 Rubber Lubricant.
Illustration 3 g02555283
Air shutoff valve and mounting
(6) Valve manifold
Table 3
Specification for the 352-8583 Air Shutoff Gp
Item Qty Part Specification Description
5 1 152-8341 Solenoid Valve Gp Nominal voltage is 24 VDC.
Resistance at 25 5 °C (77 9 °F) is 32.6 1.6 Ohms.
Torque the nut (4) to 9.0 0.5 N m (79.7 4.4 lb in).
Final installation torque for solenoid valve group is 108 7 N m (80 5 lb ft).
- - - Air shutoff group must not actuate at 14 kPa (2 psi) or below 14 kPa (2 psi). Air shutoff group must actuate at 172 kPa (25 psi) or above 172 kPa (25 psi). Pressure should not exceed 690 kPa (100 psi).
Nominal actuation pressure of the air shutoff group is 117 kPa (17 psi).