Boss Hydraulic Air Compressor BA435

1. Inspect the drive coupling for wear.

1. Check crankcase oil level. Add if needed.

2. Drain condensation from air receiver.;

Before adding or changing compressor oil, make sure that the compressor is completely relieved of pressure. Oil is added at the fill cap on a pipe on the rear of the crankcase. A drain line is located on the rear panel of the machine. The proper oil level is to the “FULL” line on the dipstick, when the unit is shut down and has had time to settle. The truck must be level when checking the oil. DO NOT OVERFILL. The oil capacity is given in “Compressor Specifications”.;

1. Change the crankcase oil (see NOTE 1).

2. Check cooler fins for dirt and obstruction. Clean if needed.;

2. Check the cylinder head stud torque (see NOTE 2).

3. Check the operation of the receiver safety valves.;