D343 MARINE ENGINE Caterpillar

Flywheel And/Or Front Power Take-Off Clutches

Checking Clutch Adjustment

While engaging the clutch to pick up the load, check the clutch adjustment. The clutch should engage with a hard push and distinct snap. If engagement is "soft", adjust the clutch.

Adjusting Clutch

1. Stop the engine and remove the clutch inspection cover.

CLUTCH INSPECTION COVER

2. Turn the clutch until the lock pin, engaged in the locking ring, is visible.

3. Disengage the lock pin and rotate the locking ring clockwise until the lock pin engages the next notch.

PULLING LOCKING PIN

4. Test the clutch adjustment. If still too "soft", rotate the ring to the next notch. If the adjustment is too tight-turn the ring back one notch.

5. Install the cover.

Lubricating Flywheel Clutches And Front Power Take-Off Clutches
(All Except D343 Oil Lubricated Clutch)

Lubricate the clutch bearings with grease, 1 or 2 strokes each fitting.

1. Lubricate the shift lever bearings; 1 fitting on each side of the clutch housing.

LUBRICATING SHIFT LEVER BEARINGS

2. Lubricate shift-collar and shaft; 1 fitting at top-left of center.

SHIFT COLLAR, SHAFT AND PILOT BEARINGS

3. Lubricate the shaft bearing; 1 fitting on top-rear of housing.

4. Lubricate pilot bearing; 1 fitting at the end of shaft. If this fitting is not accessible, remove the plug located on the circumference of the shaft near the rear of the housing, and install a fitting.