GUARD A. 3S7138 - Caterpillar

Table 4
Identification of the Springs in the HMSO Groups    
Engine Speed (rpm)     Spring Part No. (Flyweight)     Spring Part No. (Control Pin)    
1800     3N-5751     7B-7714    
1500     3N-8403     5N-5297    
1200     8M-1682     2N-7029    
1000     5N-5296     5N-5297    
Table 5
Identification of the Required Fittings in the HMSO Groups    
Part No.     Description     Qty. Required for Type A (1)     Qty. Required for Type B (2)    
3D-4603     Pipe Plug     3     1    
5M-6213     Pipe Plug     5     6    
7K-4128     Flared Tee     --     1    
032-1268     Elbow     5     2    
( 1 ) High water temperature, low oil pressure, and overspeed protection
( 2 ) Overspeed protection ONLYAssembly Procedure
Clean the 5N-8432 Seal Plate (6) and the 172-0263 Pump Cover (1). All grease, oil, and other surface contaminants must be removed from the parts. Make sure that the parts are completely dry.Note: Shake the 169-5464 Quick Cure Primer well before you apply the primer. Make sure that the temperature of the primer is above 0 °C (32 °F) before you apply the primer.
Apply 169-5464 Quick Cure Primer to the 5N-8432 Seal Plate and to the 172-0263 Pump Cover .
Allow one to two minutes for the primer to dry.
Illustration 3 g00665657
This illustration shows the new 172-0271 Gasket (2). Apply a thin layer of 1U-8846 Sealant (Anaerobic) to area (A). The diameter of area (A) should be a minimum of 30 mm (1.18 inch).
Apply a thin layer of 1U-8846 Sealant (Anaerobic) to area (A) of the 172-0271 Gasket. Apply the sealant to both sides of the gasket. The sealant should be applied to an area of at least 30 mm (1.18 inch) in diameter.
Install the 172-0271 Gasket between the 172-0263 Pump Cover and the 5N-8432 Seal Plate. Complete the assembly process by fastening the 172-0265 Gerotor Pump (3) to the 5N-6141 Control Housing Assembly (5) .
Allow the assembled shutoff control group to cure for 24 hours before operating.