Huafengdongli R4100D2 - Governor Malfunctions

(4 ) Fuel inlet and outlet connector
screw is loose
5. Fuel
atomized not well
( 1) Needle valve is distorted or worn
out
( 2) Bad seal of the needle valve
(4) Needle valve blocked
12. Governor malfunction
Trouble cause and its feature
1. Unsteady speed
( 1) Too large of camshaft axile lash
(2) Cylinders fuel supply uneven to
. much
(3) Fly - weight assembly installed
improperly , too large ste;tgger of
fly hammer bracket shaft
(4) Fuel cock worn out or bad- seal
2. Too high idling speed
( 1) Operating handle lever no rea -
ches its positon
(2)Tooth rod is not flexible
3. Speed floating
( 1) Speed adjusted spring distorted
(2) Fly hammer assembly loosen
(3) Too large friction resistance
inside the governor
(4)Too Large axile lash of the
injection'pump camshaft
4. Overrunning of the engine
( 1) Toothe rod is not flexible
(
2) Lubricated not well,shaft sleeve
of the governor burned out.
( 3) Fly hammer assembly l09Sened
( 4) high speed limit screw loosened
(4) Tighten, replace parts
5.
(1) Replace
(2) Repair or replace
( 4.) Clean -- or replace'
Remedy
1.
(1) Readjust
(2) Readjust
(3) Recheck. and assemble
(4)
Repair or replace
2.
( 1)
Inspect and adjust
(2) Readjust or repair
3.
( 1) Replace the speed adjusted sping
Check and- tighten
(3) Repair and eliminate
(4) Readjust
4.
( 1) Readjust and repair
(2) Check and· repair
( 3) check and
tighten
(4 ) Readjust
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