Removal Procedure
1. Remove the air pressure from the air tank and drain the coolant from the cooling system. Remove the air line from the top of the air compressor.
2.Disconnect water hose assembly (1) and water hose assembly (3) from the air compressor.
3.Disconnect oil hose assembly (3) from the air compressor.
4.Install Tooling (A) and a suitable lifting device to the air compressor. The weight of the air compressor is approximately 28 kg (62 lb).
5.Remove the mounting bracket for a Midland EL-740 air compressor by using the following procedure:
a.Remove bolt (7) and the clip for the oil hose from the bracket for the air compressor.
b.Remove bolts (4) and bolt (5). Remove bolt (6) and the spacer between the air compressor and the bracket for the air compressor. Remove the bracket for the air compressor.
6.Remove the mounting bracket for a Bendix Tu-Flo 550 and Bendix Tu-Flo 750 air compressors by using the following procedure:
a.Remove bolts (8) that fasten the mounting bracket to the air compressor.
b.Remove bolts (9) that fasten the mounting bracket to the cylinder block. Remove the mounting bracket for the air compressor.
7.Remove bolts (10), air compressor (11), and the gasket from the timing gear housing.
Installation Procedure
1.Install Tooling (A) and a suitable lifting device to the air compressor. The weight of the air compressor is approximately 28 kg (62 lb).
2.Inspect the condition of the gasket. Replace the gasket, if necessary. Position the gasket between air compressor (11) and the timing gear housing.
3.Position air compressor (11) in the front housing. Ensure that the drive gear engages correctly with the gear in the front housing.
4.Apply Tooling (B) to the threads of bolts (10). Install bolts (10). Tighten bolts (10) to a torque of 100 ± 20 N·m (75 ± 15 lb ft).
5.Install the mounting bracket for a Midland EL-740 air compressor by using the following procedure:
a.Position the bracket for the air compressor and install bolts (4) and (5). Install the spacer and bolt (6). Hand tighten all bolts.
b.Tighten bolt (6) to a torque of 50 ± 10 N·m (37 ± 7 lb ft). Tighten bolts (4) to a torque of 55 ± 10 N·m (40 ± 7 lb ft). Tighten bolt (5) to a torque of 28 ± 7 N·m (21 ± 5 lb ft). Remove the lifting device and Tooling (A) .
6.Install the mounting bracket for Bendix Tu-Flo 550 and Bendix Tu-Flo 750 air compressors by using the following procedure:
a.Position the bracket for the air compressor and install bolts (8) and bolts (9) finger tight.
b.Tighten bolts (8) to a torque of 55 ± 10 N·m (40 ± 7 lb ft). Tighten bolts (9) to a torque of 55 ± 10 N·m (40 ± 7 lb ft). Remove the lifting device and Tooling (A) .
7.Connect oil hose assembly (3) to the air compressor. Connect the clip that holds the hose assembly to the air compressor. Tighten bolt (7) that holds the clip to a torque of 28 ± 7 N·m (21 ± 5 lb ft).
8.Connect water hose assembly (1) and water hose assembly (3) to the air compressor.
9.Connect the air hose to the air compressor.
10.Fill the cooling system with coolant to the correct level. Refer to the Operation and Maintenance Manual for the correct filling procedure.