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Fig. 6 Compressor Current Draw Test

²Air pressure leaks down below 621 kPa (90 psi), before it remains steady.

²Output pressure builds up to less than 758 kPa (110 psi) when it stabilizes.

If the compressor is allowed to run during this test until it reaches its maximum output pressure of 1516 kPa (220 psi). The solenoid exhaust valve will act as a pressure relief valve. The resulting leak-down, after the compressor is shut off, will indicate a false leak.

SUSPENSION/DRIVESHAFTS 2 - 63

SERVICE PROCEDURES

COMPRESSOR ASSEMBLY

REMOVAL

(1)Disconnect negative battery cable.

(2)Raise vehicle, see Hoisting, Group 0.

(3)Remove cover from compressor assembly. Remove air hose and electrical connectors (Figs. 1 and 2).

(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 install bolts and tighten to 8 NIm (70 in. lbs.) torque.

(2)Install compressor assembly to frame rail and tighten bolts to 8 NIm (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 NIm (70 in. lbs.) torque.

(5)Lower vehicle and connect negative battery

cable.

(6)Check operation of the system.