PUMP GP-PISTON 5264863 - Caterpillar

Install springs (15A), the washers, and bolts (15). Tighten bolts (15) to a torque of 40 7 N m (30 5 lb ft). Install O-ring seal (14). Lubricate O-ring seal (14) lightly with the lubricant that is being sealed.
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Lower the temperature of bearing cup (13A) to install bearing cup (13A) in housing (10).
Use Tooling (D) to install Duo-Cone seal (13) in housing (10). Refer to Disassembly and Assembly, "Duo-Cone Conventional Seals - Install".
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Use Tooling (D) to install Duo-Cone seal (12) on wheel spindle (5A). Refer to Disassembly and Assembly, "Duo-Cone Conventional Seals - Install".
Heat bearing cone (11). Install bearing cone (11) on wheel spindle (5A).
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Install Tooling (B) and a suitable lifting device on housing (10). Position housing (10) on wheel spindle (5A). The weight of housing (10) is approximately 77 kg (170 lb).
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Apply Tooling (F) to discs (9) and friction discs. Install discs (9) and friction discs in housing (10).
Install hub (8).
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Attach Tooling (B) and a suitable lifting device to cover (7). Install cover (7) on housing (10). The weight of cover (7) is approximately 45 kg (100 lb).
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Install bolts (6).
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Install bearing cone (5) on wheel spindle (5A).
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Shown is the pattern to update retainer (3). The diameter of the dashed circle is 52 mm (2.047 inch).
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Position retainer (3) on sprocket (4) with no shims installed. Install bolts (2) finger tight against retainer (3). Tighten bolts (2) to a torque of 80 N m (59 lb ft). Repeat until bolts (2) no longer turn. Rotate the housing three full rotations once the bolt torque has equalized at 80 N m (59 lb ft). Bolts (2) will have to be tightened several times followed by three full rotations to ensure correct torque.
Loosen bolts (2), and finger tighten against retainer (3).
With bolts (2) finger tight only, rotate the housing three full rotations.
Tighten bolts (2) to a torque of 20 N m (15 lb ft). Repeat until bolts no longer tighten. Rotate the housing three full rotations once the bolt torque has equalized at 20 N m (15 lb ft). Bolts (2) will have to be tightened several times followed by three full rotations to ensure correct torque.
Measure Distance (X) using tooling (K). Add 0.10 mm (0.004 inch) to the average of these measurements. This result will be the desired shim pack (4) thickness.
Apply Tooling (E) to bolts (2). Install bolts (2), tighten to a torque of 130 7 N m (96 5 lb ft).
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Remove Tooling (A) from spindle assembly (1).End By:
Install the service brake and the wheel spindle. Refer to Disassembly and Assembly, "Service Brake (Wheel Spindle) - Install" for the machine that is being serviced.