TUBE ASSEM. 4J8155 - Caterpillar

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Position head assembly (16) on housing (3) and install bolts (27). Tighten the bolts to a torque of 205 N m (151 lb ft).
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Install seal (26) in head assembly (16) .
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Install retaining ring (24) and woodruff key (25) on shaft (22) .
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Install retaining ring (23) in shaft (22) .
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Note: Plate (21) must be installed in the original orientation. Refer to Disassembly and Assembly, "Piston Pump (Vibratory) - Disassemble".
Install plate (21) and shaft (22) in head assembly (16) .
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Install charge pump (20) .
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Install seal (19) in flange (17) .
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Install flange (17) in head assembly (16) .
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Install O-ring seal (18) on flange (17) .
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Position cover (15) on head assembly (16) and install bolts (14) .
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Use the following procedure and assemble valve assembly (2) .
Install spool (13) in valve body (4) .
Install O-ring seal (10) on valve cartridges (9). Install retainer (12), spring (11), and valve cartridge (9) in both sides of valve body (4) .
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Install coil (7) and O-ring seal (8) on both sides of valve body (4) .
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Install nut (5) on both sides of valve body (4) .
Install O-ring seal (6) in valve body (4) .
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Position the seal and valve assembly (2) on housing (3). Install bolts (1). Tighten the bolts to a torque of 10.4 N m (92 lb in).Note: After the vibratory pump is installed, the neutral adjustment must be checked. Refer to Vibratory System, KENR3606, "Piston Pump Neutral - Test and Adjust".Note: After the vibratory pump is installed, the vibratory frequency must be checked. Refer to Vibratory System, KENR3606, "Vibratory Frequency - Test and Adjust".End By: Install the vibratory pump. Refer to Disassembly and Assembly, "Piston Pump (Vibratory) - Install".