Service Recommendations For STC®1 Fittings

STC fittings are used on this machine. The fittings are designed to allow the hydraulic hose to rotate as needed when the system is not pressurized. This prevents the hydraulic hoses from binding when components are put back to their operating position.

Fittings are easily disconnected using special tool, JDG1385 (1) (supplied with machine). The special tool has a different size slot cut into each end. The narrow slot is for -06 size fittings. The wide slot is for -08 size fittings. Use appropriate end of special tool on fitting being disconnected. To connect fittings, simply push each half of fitting together.

IMPORTANT: DO NOT pry against release sleeve (3) or damage to fitting may result.

DO NOT force release sleeve beyond normal range of travel, otherwise, release sleeve may fall off when hose is disconnected. If this happens and fitting is connected without the release sleeve installed, fitting will not be able to be disconnected again.

1. Disconnect STC type fittings:

a. Clean area around fitting, especially around the release sleeve (3).

b. While keeping special tool JDG1385 (1) perpendicular to the fitting, insert tool between release sleeve (3) and shoulder (2).

c. Gently push, DO NOT PRY , release sleeve away from shoulder to disconnect the fitting.

d. Pull hose to disconnect.

T133974B

JDG1385 Tool Storage Location

T134792C


1-Special Tool JDG1385
2-Shoulder Of Fitting
3-Release Sleeve

1STC is a registered trademark of the Aeroquip Corporation.

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2. Inspect STC fittings:

a. Check seal mating surfaces for nicks, scratches, or flat spots.

b. Check O-ring (4), backup ring (5), and retaining ring (2) for wear or damage.

c. Make sure O-ring, backup ring, and retaining ring are in position before connecting fitting halves together.

3. Connect STC fittings:

a. Make sure fitting halves (3 and 6) are clean and free of contaminates.

b. Make sure release sleeve (1) is on male half (6) of fitting before connecting fitting halves together.

c. Push fitting halves together until a definite snap and solid stop is felt.

d. Pull back on hose to make sure fitting halves are locked together.

e. To prevent hoses from binding, move component into position before pressurizing hydraulic system.

T133922


1-Release Sleeve
2-Retaining Ring
3-Female Half of STC Fitting
4-O-Ring
5-Backup Ring
6-Male Half of STC Fitting

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