WRENCH A- 6V4070 - Caterpillar

Installation Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Do not allow dirt to enter the fuel system. Thoroughly clean the area around a fuel system component that will be disconnected. Fit a suitable cover over disconnected fuel system component.
Note: The aftercooler has been removed for photographic purposes only.Note: Check the condition of the O-rings. If the O-rings are worn or damaged, use new parts for replacement.
Install the O-ring on the unit injector hydraulic pump that seals against the unit injector hydraulic pump drive. Lightly lubricate the seal with clean engine oil.
Illustration 1 g00553109
Typical example
Attach a strap and a suitable lifting device to unit injector hydraulic pump (14), as shown. The weight of the unit injector hydraulic pump is approximately 30 kg (66 lb).
Illustration 2 g00553111
Typical example
Install two bolts (15) and the washers.
Illustration 3 g00553076
Typical example
Install three bolts (13) and the washers.
Illustration 4 g00553074
Connect injection actuation pressure sensor (10), engine oil temperature sensor connector (11), and the connector for engine oil pressure sensor (12).
Illustration 5 g00553073
Typical example
Install two wire ties (8) and (9).
Illustration 6 g00553072
Typical example
Note: The unit injector hydraulic pump must be primed before inlet tube assembly (3) is installed. Pour 0.95 L (1.00 qt) of clean engine oil directly in the inlet of the unit injector hydraulic pump before tube (3) is installed.
Install the O-ring seals in tube assembly (3). Lightly lubricate the O-ring seals with clean engine oil. Install tube assembly (3).
Position clamp (4) and install bolt (5), the nut, and the washer.
Place clamp (7) in position and install bolt (6), the nut and the spacer.
Illustration 7 g00553070
Typical example
Install the O-ring seals in hose assemblies (1) and (2). Lightly lubricate the seals with clean engine oil. Connect hose assemblies (1) and (2).
Tighten hose assemblies (1).
Tighten hose assemblies (2) to 125 15 N m (92 11 lb ft).