TUBE AS 1178547 - Caterpillar

Removal Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: Put identification marks on all hoses, on all hose assemblies and on all tube assemblies for installation purposes. Plug all hose assemblies and tube assemblies. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
Illustration 1 g01254510
Typical example
Remove tube assembly (4) from vacuum pump (1) and from the cylinder block.
Disconnect the vacuum line from connector (3) on the vacuum pump.
Remove bolts (2). Remove vacuum pump (1) from the front housing.
Remove the joint. Installation Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 2 g01254510
Typical example
Ensure that the vacuum pump is clean and free from damage. If necessary, replace the vacuum pump.
Clean the mating surfaces on the front housing.
Install a new joint to vacuum pump (1).
Install vacuum pump (1) to the front housing. If necessary, rotate the shaft of the vacuum pump in order to align the gears.
Install bolts (2). Tighten M8 bolts to a torque of 22 N m (16 lb ft).Tighten M10 bolts to a torque of 44 N m (32 lb ft).
Connect the vacuum line to connector (3).
Install tube assembly (4) to vacuum pump (1) and to the cylinder block. Tighten the nuts on the tube assembly to a torque of 9 N m (80 lb in).