Case W14 Loader Service Manual

Description

Table of Content

1. General
2. Engines
3. Fuel System
4. Hydraulics
5. Steering
6. Power Train
7. Brakes
8. Electrical
9. Mounted Equipment

Manual Extract: Setting Valve Lift

1. While pumping fuel through injector, hold the pressure adjusting screw and slowly turn lift adjusting screw clockwise until valve ceases to open.

NOTE: Some injectors have a screwdriver slot in end of lift adjusting screw and some injectors have an Allen wrench slot.

2. Check for bottoming of the valve by raising the pressure 200 to 500 PSI over injector opening pressure. Although some fuel may collect on the tip, a rapid dribble should not be apparent. Do not manually bottom the valve with excessive force because bending of the valve can result.
3. Turn the lift adjusting screw counterclockwise 3/4 of a turn to obtain the specified lift. Hold the lift adjusting screw and tighten the lift adjusting screw locknut 35 to 45 in. lbs. Use Snap-On Tool 1 / 4 ” Crow’s-foot Wrench No. AN 9508-6 and an inch-pound torque wrench.
4. Recheck the opening pressure. Note that the lift is set before checking spray pattern and chatter because the amount of lift will affect these characteristics.