Adjusting The Crawler Tension; Replacing The Drive Unit Oil - Kubota U17-3a Operating Instructions Manual

Maintenance

Adjusting the crawler tension

Tightening the crawlers

Position the grease gun on the grease nipple (1).

Pump the grease gun until the specified crawler tension is
obtained.
Loosening the crawlers

Cautiously unscrew the pressure valve (figure above, position 2) and loosen the crawler.
Grease could squirt out from the cylinder opening.

Screw in the pressure valve and torque to 98-108 Nm.

Tighten the crawler.

Replacing the drive unit oil

Only change the oil when the drive unit is warm to the hand; if not, drive the excavator warm.

Park the excavator on level ground so that the drain plug (figure below, position 2) is positioned at the
bottom.

Place a catch tray with a minimum capacity of 2 L under the drain plug.

Remove the drain plug and let the oil drain completely.
Install the drain plug with a new sealing ring on it.

Remove the oil filler plug (1).

Fill oil as specified in the "Recommended lubricants" section
(page 105). The oil level is the lower edge of the thread.
Capacity:

Refit the oil filler plug with a new sealing ring and tighten it.

Perform the same service on the second drive unit.
0.25 L
101