HEAD AS 3234219 - Caterpillar

Illustration 1 g01167392
254-4109 Piston Pump Group (1) Tighten the plug to the following torque. ... 34 3 N m (25 2 lb ft) (2) Lubricate the bore with a minimal amount of lubricant that is being sealed. (3) Tighten the plug to the following torque. ... 1 0.1 N m (9 1 lb in) (4) Tighten the orifice to the following torque. ... 13 2 N m (115 18 lb in) (5) Tighten the plug to the following torque. ... 60 6 N m (44 4 lb ft) (6) The port locations of the barrels must be matched when the pump is assembled. (X) Depth of dowel pin 5.55 mm to 5.80 mm (0.22 inch to 0.23 inch)
Illustration 2 g01167403
Auxiliary views (7) Tighten the plug to the following torque. ... 140 14 N m (105 10 lb ft) (8) Tighten the plug to the following torque. ... 13 2 N m (115 18 lb in) (9) At installation, apply 1U-8846 Gasket Sealant . (Y) Depth of dowel pin ... 6.8 mm to 9.0 mm (0.26 inch to 0.35 inch) 254-6561 Pump Control Valve
Illustration 3 g01167410
254-6561 Pump Control Valve (10) Lubricate the bore with a minimal amount of lubricant that is being sealed. (11) Tighten the nut to the following torque. ... 30 7 N m (22 5 lb ft) (12) Tighten the nut to the following torque. ... 177 15 N m (130 11 lb ft) (13) Tighten the piston to the following torque. ... 350 30 N m (260 22 lb ft) (14) At installation, apply 155-0695 Thread Lock Compound . (15) 270-8937 Spring Length under test force ... 25.9 mm (1.02 inch) Test force ... 59 3 N (13 1 lb) Free length ... 27.6 mm (1.09 inch) Outside diameter ... 22.7 0.2 mm (0.89 0.01 inch) (16) 263-1202 Spring Length under test force ... 75 mm (2.95 inch) Test force ... 772 38 N (174 9 lb) Free length ... 104.69 mm (4.12 inch) Outside diameter ... 28 0.15 mm (1.102 0.006 inch)Flow Specifications
Use SAE 10 oil at 68° 14°C (154° 25°F) to test the pump.Maximum system pressure at 259 4 L/min (68 1 US gpm) ... 30300 200 kPa (4395 30 psi)Test at Full Speed Output ... 270 L/min (71 US gpm) Pressure ... 6900 kPa (1000 psi) Pump speed at rated engine speed ... 1800 rpm Input power of pump at main relief ... 100.25 kW (134.4 hp)Margin Pressure Setting Margin pressure ... 1965 100 kPa (285 15 psi)