5.2.22. Dismantling and assembly of the pump of the hydraulic booster of steering

Carefully clear the pump outside.

Establish a pump housing in a vice with aluminum sponges.

Fig. 5.69. Dismantling of the pump of the hydraulic booster of steering

Turn off a connecting bolt of absorption 1, remove the union of absorption 2 and a sealing ring 3 from a pump housing of 4 (fig. 5.69).

Remove pressure sensor in a hydraulic system of steering 5 of a pump housing.

Remove a cap 6, sealing rings 20, a spring 8 and the safety valve (the stream regulator) 9 from a pump housing (fig. 5.69).

Turn off bolts of a cover 7, uncover 10 and a sealing ring 17 a pump housing.

Remove a lock ring 12 from a shaft of the pump (fig. 5.69).

Take out blades 13 of a rotor 14.

Remove a cam ring 15, a rotor 14, a side plate 16 and sealing rings 11 of a pump housing (fig. 5.69).

Take out a pulley 18 of a pump housing.

Remove an epiploon 19 of a pump housing (fig. 5.69).

Installation is made as it should be, the return to removal, except for the following.

Fig. 5.70. Installation of a shaft of a pump housing

Apply jellied lubricant on a working edge of an epiploon 1. Apply liquid for hydraulic systems on the surfaces of friction of a shaft 2, and then establish a shaft in a pump housing (fig. 5.70).

Fig. 5.71. Sealing rings

Apply liquid for hydraulic systems on sealing rings 1 and install them in the case (fig. 5.71).

Establish a side plate 1 in a pump housing (fig. 5.71).

Fig. 5.72. Installation of a side plate

NOTE Accurately combine adjusting pins on a side plate 1 with an opening 2, as shown in the figure 5.72.

Fig. 5.73. Installation of a rotor on a pump shaft

Apply liquid for hydraulic systems on the surfaces of friction of a rotor of 1 (fig. 5.73).

Establish a rotor on a shaft so that the point 3 at an end face of a rotor was turned (fig. 5.73) up.

Establish a new lock ring 2 on a shaft (fig. 5.73).

NOTE Never reuse the removed lock ring.

Fig. 5.74. Installation of a cam ring in a pump housing

Apply liquid for hydraulic systems on the surfaces of friction of a cam ring of 1 (fig. 5.74).

Install a cam ring in the case. A conic part of a ring 1 has to be turned to a side plate of 2 (fig. 5.74).

Fig. 5.75. Installation of blades of a rotor

Apply liquid for hydraulic systems on blades 2 (fig. 5.75).

Install blades (12 pieces) 2 in a rotor of 1 (fig. 5.75).

Fig. 5.76. Installation of a sealing ring in a pump housing

Apply liquid for hydraulic systems on a sealing ring of 1 (fig. 5.76).

Install a sealing ring 1 in the case (fig. 5.76).

Apply liquid for hydraulic systems on the surfaces of friction of a cover of the pump and a rotor.

Fig. 5.77. Installation of a cover of the pump

Combine adjusting pins 1 with openings in a cover 2, as shown in the figure 5.77, then install a pump cover on the case.

Gradually tighten pump cover bolts the nominal force of an inhaling.

Fig. 5.78. Bolts of fastening of a cover of the pump

NOTE After installation of a cover of the pump 1 check a hand ease of rotation of a shaft (fig. 5.78).

Moment of an inhaling of bolts of a cover of the pump (a): 28 N · m.

Apply liquid for hydraulic systems on a sealing ring of the switch.

Fig. 5.79. Installation of the sensor of pressure in a pump housing

Install the sensor of pressure 1 in the case (fig. 5.79).

Moment of an inhaling of the sensor of pressure (b): 28 N · m.

Apply liquid for hydraulic systems on the safety valve (the stream regulator).

Install the safety valve (the stream regulator) in a pump housing.

Establish a spring.

Apply liquid for hydraulic systems on sealing rings of a cap.

Establish sealing rings on a cap.

Fig. 5.80. Installation of a cap

Tighten a cap 1 nominal force of an inhaling (fig. 5.80).

Moment of an inhaling of a cap (c): 60 N · m.

Apply liquid for hydraulic systems on a sealing ring of the union of absorption.

Fig. 5.81. Installation of a sealing ring on the absorption union

Install a sealing ring 2 on the union of absorption of 1 (fig. 5.81).

Fig. 5.82. Installation of the union of absorption

Install the union of absorption 1 in the case, as shown in the drawing, then tighten a bolt of the union of absorption by the nominal force of an inhaling (fig. 5.82).

Moment of an inhaling of bolts of the union of absorption (d): 12 N · m.