If the starting engine clutch brake will not stop the pinion from turning when the clutch is properly adjusted, an adjustment of this linkage should be made with the starting engine stopped.
- 1. Remove the pin from rod end (2).
- 2. Engage the starting engine clutch by moving clutch lever (1) toward the rear of the engine until the clutch snaps into engagement. This position must be maintained throughout the adjustment procedure.
- 3. Engage the pinion by moving pinion lever (4) toward the rear of the engine until the kick-out plunger holds the pinion in engagement. This position must be maintained throughout the entire adjustment procedure.
- 4. Connect and adjust the linkage so when assembled, the pin in rod end (2) contacts the extreme front of the slot in lever (3).
- 5. Lengthen linkage by turning the rod end one turn.
- 6. Reassemble linkage and tighten locknut of rod end (2).
STARTING ENGINE CLUTCH AND PINION LINKAGE
1-Clutch lever. 2-Rod end. 3-Lever. 4-Pinion lever.
Pinion Engagement Adjustment
The starter pinion should turn only after it is engaged with the diesel engine flywheel ring gear and the starting engine clutch is engaged.
Occasionally the ring gear of the diesel engine may be positioned so as to have the pinion teeth butt against the ring gear teeth, making clutch engagement impossible.
To remedy this problem, an adjustable spring (3) is attached to the clutch lever for the purpose of maintaining a light load on the starting engine clutch. This will provide a slight spinning or indexing motion to the pinion gear as it is engaged or disengaged.
If the spring tension is too great, the clutch will be too heavily loaded and produce a definite gear clashing whenever engagement is attempted. To reduce the spring tension on the clutch lever when gear clashing occurs, proceed as follows:
- 1. Loosen locknut (4) while holding bolt (1).
- 2. Turn adjusting nut (2) in the direction to reduce distance (A).
- 3. Tighten locknut (4) while holding bolt (1).
- 4. Start the starting engine.
- 5. Quickly engage the starting engine pinion with the diesel engine ring gear. A rapid motion is required.
- 6. Readjust if necessary.
PINION ENGAGEMENT ADJUSTMENT
1-Bolt. 2-Adjusting nut. 3-Adjustable spring. 4-Locknut. A-Distance between ends of spring.
With insufficient spring tension, the pinion may not turn; if one butt engagement occurs, it may continue to occur on successive engagement attempts. If butt-engagement continues to occur on successive attempts, the spring tension must be increased.