Woods Equipment S30CD manual Gearbox OIL Leakage, Gearbox leakage & Troubleshooting

GEARBOX OIL LEAKAGE

NOTICE

■Major oil leakage from the gearbox shaft seal area is not acceptable and could cause the gearbox to fail due to lack of lubrication and cooling. It is the operator’s responsibility to check the gearbox oil level per the Lubrication Service Table.

Before checking gearbox oil level, shut down the shredder for a couple of hours to allow the oil to drain back into the reservoir for the most accurate reading. Proper oil level should be between the full and add lines on dipstick. When oil is needed, add through the dipstick tube.

NOTICE

■DO NOT OVERFILL. Lab tests have proven that overfilling the gearbox can dramatically increase the gearbox operating temperature. In extreme cases this can overheat the oil, reducing its lubri- cating and cooling properties, and eventually cause shaft seals to deteriorate and fail. Over- heated oil has an obvious burnt smell; drain it and refill with new oil. Overfilling gearbox oil can void the warranty.

The gearbox should not require frequent servicing of oil. It is not designed to consume or lose large amounts of oil. If oil needs to be added frequently, troubleshoot- ing the cause is required (see section below).

Gearbox leakage & Troubleshooting

Some gearbox oil leakage may be acceptable if:

1.Oil covers less than a 3-inch diameter circle around the shaft seal area (see Figure 29).

2.Oil covers less than a 4-inch diameter circle around the dipstick tube (see Figure 29).

If oil leakage covers an area larger than that described in 1 and 2, do the following:

1.Properly check oil level. If low, properly service.

2.Clean oily area of gearbox. Use a degreaser to remove all oil from outside surface of gearbox.

3.Closely monitor gearbox for 10 hours of operation. Check and service oil every 30 minutes or as needed to ensure operation does not occur with oil below the add mark.

4.If after 10 hours of operation, oil covers less than the area described in 1 & 2 above, seepage is considered to be acceptable.

5.If after 10 hours of operation, oil covers more than the area described in 1 & 2 above, this seepage is considered to be unacceptable leakage.

6.Gearboxes with unacceptable leakage should be rebuilt, replacing old seals and worn parts with new seals and parts. Gearbox rebuild and seal replacement parts are available through your local Woods dealer. Consult with Woods Technical

Service for further details, rebuild recommendations, or warranty questions.

CHANGING GEARBOX OIL

Although gearbox oil never wears out, dust, dirt, and moisture can enter through the breather during opera- tion. These contaminants must be removed once a year to ensure a long life for working components. In very dusty or dirty conditions, change the oil twice a year.

1.Clear area of bystanders, especially children.

2.Shut off tractor, place all controls in neutral, set parking brake, remove key, and wait for all moving parts to stop.

3.Raise the unit to provide access to underside. Place safety stands or large blocks under frame.

4.Disconnect PTO driveline and hydraulic lines.

5.Place a pan under drain plug. Remove drain plug and dipstick plug (see Figure 30).

6.Allow gearbox to drain for 10 minutes.

NOTE: To remove the most contaminants, drain oil when gearbox is hot.

28 Service & Maintenance MAN0943 (07/12/2011)