GR3000

Pre-Operation

location

Selecting the proper location can significantly increase performance, reliability and life of the unit.

◆For best results locate the unit in an environment that is clean and dry. Dust and dirt in the unit retain moisture and increase wear of moving parts.

◆There are mounting holes in the bottom of the open frame models to permanently mount the unit if desired. The bolt pattern is 20 inch x 26 inch and will accept 1/2 inch bolts. The wheels (if present) must be removed.

◆Store electrodes in a clean, dry location with low humidity to preserve the flux coating.

lubrication

CHECK ENGINE AND PUMP OIL LEVELS BEFORE OPERATING! Follow lubrication

instructions before operating compressor.

1.Oil is NOT mixed with the gasoline, however adequate oil supply is necessary for proper engine lubrication. Refer to the Engine Manual for SAE, API and fill quantity specifications.

2.Remove pump breather and fill pump with 8.5 oz. of oil. Use full synthetic motor oil like Mobil 1® 10W-30. Do not use regular automotive oil such as 10W-30. Additives in regular oil can cause valve deposits and reduce pump life. For pumps with an oil sight glass, oil level can be monitored and maintained as shown in Figure 1.

Full

Add Oil

Figure 1

Grounding

1.Use the ground terminal and wing nut on the frame to connect the unit to a suitable ground source. Securely fasten the end terminal of the ground wire to the ground terminal on the frame. Tighten the washer and wing nut on top of the ground wire end terminal.

2.The ground wire should be made of #8 gauge wire. Do not use wire with a higher gauge number. Higher gauge numbers indicate thinner wire, which may not provide an adequate ground path.

3.The other end of the ground wire must be securely fastened to an approved ground source.

The following are ground sources approved by the National Electric Code. Other ground sources may be acceptable. Refer to the National Electric Code and local regulations for further ground source information. If not sure of regulations

or procedures, obtain assistance from a qualified (licensed or certified) electrical technician.

a.An underground water pipe at least ten feet in length

b.A non-corrosive underground pipe at least eight feet in length and 3/4 inch diameter

c.A steel or iron underground rod at least eight feet in length and 5/8 inch diameter

d.A non-ferrous rod at least eight feet in length, 1/2 inch in diameter, and approved for grounding purposes

Any rod or pipe used for grounding must be driven to eight feet deep or buried in the deepest possible trench.

Starting

1.Remove all electrical loads from the unit.

2.Set compressor switch to OFF position.

3.Move fuel shut-off lever as far as possible to the right to enable fuel flow.

4.Set the engine switch to the RUN position.

5.For a cool engine, pull the choke knob out.

6.Push and hold the START switch until the engine starts, then release.

7.After each start up, allow the engine to run for 2 to 3 minutes with no load.

8.As the engine warms up and stabilizes, adjust the choke knob in fully.

Engine speed is preset to provide proper output voltage. Never attempt to modify or adjust

engine speed or output voltage.

Engine Break-In

After initial start-up, the engine should be broken in according to the manufacturer’s instructions. Refer to the engine manual for the proper break-in procedure.

Compressor Break-In

Open the drain valves in the end of the two tanks. Turn the compressor switch to ON and allow the pump to run without a load for 30 minutes. After 30 minutes, close the drain petcocks and pressure will begin to build in the tanks.

Shut-Off

1.Shut off and remove all electrical load devices from the unit

2.Set compressor switch to OFF position.

3.Allow the engine to run for

2-3 minutes with no electrical loads.

4.Set the engine switch to the OFF position.

5.Verify that the unit has completely stopped.

6.Close the fuel supply valve.

7.Allow the unit to cool before installing any covers or storing unit.

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