Yanmar 4LHA-HTP Operation Manual page 439

Chapter 3 Fuel Injection Equipment
2. Disassembly, Reassembly and Inspection of Governor
(10) When you need to pull out the control lever shaft,
remove t h e control lever tightening nut, lightly
tap the c o n t r o l lever shaft with a wooden hammer,
and pull it out from the inside of the governor
case.
NOTE: Do not remove the fuel limit nut from the
governor case unless necessary.
(11) Pull out t h e governor sleeve at the'end of the fuel
camshaft b y hand.
(12) Remove the governor weight nut and washer with
a box spanner, stopping it with the hole in the fuel
pump coupling or holding the coupling with a vise.
Screw the governor weight nut back in, (two or
three times).
NOTE: Be careful as the taper fit comes apart after
removing the nut • - - the governor
may fly out.
(13) Remove the governor weight assembly from the
fuel pump cam. U s e the governor weight pulling
tools.
NOTE:
The governor weight
the governor weight,
Do not disassemble.
2-2 Inspection of g o v e r n o r
Inspection of governor w e i g h t assembly
Replace if:
(1) It does not open and close smoothly.
(2) The contact surface with governor sleeve is ex-
tremely worn.
(3) The governor weight support/pin is worn or the
caulking is loose.
(4) The governor weight support stopper is excessively
weight
worn.
3-2-17
4LHA Series
assembly is made up of
support and pin.