Heavy Duty Balanced Opposed Compressors - Ariel Corporation
Heavy Duty Balanced Opposed Compressors - Ariel Corporation
Heavy Duty Balanced Opposed Compressors - Ariel Corporation
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FOR MODELS: JGZ AND JGU SECTION 5 - MAINTENANCE<br />
5. Install a new square key, 3/8 x 2 inches (9.38 x 50.8 mm) long, after first checking<br />
to make sure the key will fit into the new sprocket. If the key is too thick, it<br />
can be polished with an emery cloth on a flat surface until it can easily slide into<br />
the notch. It may also be a little high and require filing of the top edge.<br />
6. Install a new sprocket and adjust the distance between the sprocket and the<br />
adapter outer surface to the previous measurement. When it is correctly positioned,<br />
tighten the set screws.<br />
7. Install a new gasket. Before reinstalling the pump, apply a thin coating of antiseize<br />
lubricant to the gasket surfaces. This will aid in easy removal at a later<br />
date.<br />
8. Reinstall the pump onto the end cover and check the alignment with the other<br />
sprockets using a straight edge.<br />
9. Reinstall chain, and adjust the chain according to the instructions in “Chain<br />
Adjustment” on Page 5-31. Reinstall the piping at the pump. Refill the crankcase<br />
with the proper oil.<br />
Square Key<br />
Sprocket<br />
Set Screws<br />
Gasket<br />
FIGURE 5-23 LUBE OIL PUMP CHAIN SPROCKET<br />
Force Feed Lubricator Chain Sprocket Replacement<br />
1. Remove bolting and rotate eccentric adjusting cap on the chain idler to loosen<br />
chain. Remove chain. With a good machinist rule, measure the exact distance<br />
from the inside of the auxiliary end cover the near edge face of the chain<br />
sprocket. Note the measurement for the proper positioning of the new sprocket.<br />
Loosen the hex on the Fenner drive. Remove the sprocket and Fenner drive.<br />
Detach all tubing to the lubricator.<br />
2. Remove the four mounting bracket cap screws and remove the lubricator box.<br />
3. When the lubricator box is removed, it is a good time to consider replacing the<br />
shaft seal. Polish out any burrs on the shaft before installing a new seal.<br />
4. With the lubricator box on the bench, apply new clean lubricating oil, same type<br />
as is used in the frame, to a new o-ring and install it.<br />
5. Disassemble Fenner drive, clean and inspect. Lubricate threads with new clean<br />
lubricating oil, same type as is used in the frame, and reassemble the Fenner<br />
PAGE 5 - 34 7/09<br />
Pump