Yanmar 4LHA-HTP Operation Manual page 447

Chapter 3 Fuel Injection Equipment
3. Disassembly, Reassembly
(12) Remove t h e control rack.
NOTE: Be careful not to lose the spring and seats
attached to the control rack.
(13) Remove the delivery valve holder.
(14) Remove the delivery valve assembly.
NOTE: 1. Be careful not to lose the delivery valve
packing, delivery
valve stopper and other small parts.
2. Keep the delivery
each cylinder clearly separate.
and Inspection of Fuel Injection Pump
valve spring, delivery
valve assemblies for
(15) Push up the lower part of plunger barrel from the
bottom of the pump, and take o u t the plunger
barrel from the top of pump.
NOTE: Keep each plunger barrel and plunger
out before as a set.
3-2-25
4LHA Series
taken