BENDIX SD-30-4250 manual Pressure Relief Bypass Valve Disassembly

Models: SD-30-4250

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FIGURE 26

17.Remove the inner O-ring(17) and the nylon seal ring(18) from the valve body(16).

NOTE: Do not remove the inner ball race(28) from the valve body(16) if it is in good condition.

18.Then remove the dust seal(13), snap ring(14) and the seal(15) from the valve body(16). (See Figures 7 & 26)

PRESSURE RELIEF BYPASS VALVE DISASSEMBLY

19.The power steering valve body(16) contains a pressure relief and safety valve.

Loosen and remove the plug(3) with a 26mm wrench and the corresponding seal washer(4).

CAUTION: Located in the plug are the corresponding maximum pressure adjusting shims(5). (See Figure 27 & 28) Proper reinstallation of the shims is critical to maintain correct relief pressure.

Remove the spring(6), the guide(7) and the valve(8). With a wide blade screwdriver loosen and remove the valve seat(9) and its copper seal washer(10) as well as the spring(11) and the ball(12) of the bypass valve.

NOTE: Be careful not to damage the I.D. of the valve body or the valve seat(9) with the screwdriver.

 

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FIGURE 27

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BENDIX SD-30-4250 manual Pressure Relief Bypass Valve Disassembly