Grizzly G0471 instruction manual Changing Oil

Symptom	Possible Cause		Possible Solution
Air leaks from pressure	1.	Faulty check valve.	1.	Repair the check valve
switch.				(see Page 22).
	2.	Faulty pressure switch.	2.	Replace pressure switch.
Air is dirty or has exces-	1. Tank is not drained.		1. Open drain valve and
sive moisture.				make certain all the water
				is drained out.
	2.	Delivery pipes are dirty.	2.	Remove delivery pipes,
				clean out and replace.

Changing Oil

5.Replace the oil drain cap screw and remove the oil breather fill plug shown in Figure 16.

Change the oil in the air compressor pump after the initial 50 hours, or 30 days of use; and every 300 hours, or 3 months after the first oil change. Use compressor oil or ISO 100/SAE 30W, non-detergent type oil.

To change the oil:

1.Unplug the air compressor and drain all the air from the tank.

2.Place a container on the floor to catch the oil, then tip the compressor so the cap screw shown in Figure 15 is over the container.

Oil Drain

Cap Screw

Figure 15. Oil drain cap screw.

3.Use a hex wrench to remove the oil drain cap screw shown in Figure 15.

4.Drain all of the oil from the crank case then tip the compressor upright.

Oil Breather

Fill Plug

Figure 16. Oil breather fill plug.

6.Fill the crank case with oil until the oil level is in the center of the sight glass, then replace the oil breather fill plug.

Model G0471 3 HP Air Compressor -21-