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• Air pressure leaks down below 621 kPa (90 psi), If the compressor is allowed to run during this test until it reaches its maximum output pressure of 1516 a pressure relief valve. The resulting leak-down, af- SERVICE PROCEDURES COMPRESSOR ASSEMBLY REMOVAL (1) Disconnect negative battery cable. move air hose and electrical connectors (Figs. 1 and (4) Remove compressor assembly mounting bolts and lower assembly from vehicle. (5) Remove mounting bracket bolts and slide mounting bracket away from compressor. INSTALLATION (1) Slide mounting bracket on compressor and in- stall bolts and tighten to 8 N Im (70 in. lbs.) torque. (2) Install compressor assembly to frame rail and tighten bolts to 8 N Im (70 in. lbs.) torque. (3) Connect air hose and electrical connector to compressor assembly. (4) Install cover on compressor assembly and tighten bolts to 8 N Im (70 in. lbs.) torque. (5) Lower vehicle and connect negative battery ca- ble. (6) Check operation of the system. Fig. 6 Compressor Current Draw Test 2 - 62 SUSPENSION AND DRIVESHAFTS Ä |