Yanmar 4LHA-HTP User Manual

Chapter 3 Fuel Injection Equipment
1. Fuel Supply System
4LHA Series
E
å
tr.
s
-j RE
G (Continuous
rated output)
Cam speed
Engine speed -
The torque spring thus provides for increasing
injection volume as the speed falls. This increases
the engine torque and in turn prevents engine stop-
ping due to sudden increases in load. This also
contributes to strong engine output characteristics.
(7) No-load maximum speed
When the load decreases from full load max. speed
and engine speed increases, the increased thrust
load of the governor weight acting on the governor
spring through the tension lever exceeds the set
load of the spring. The tension lever and governor
lever descend clockwise; the control rack is pushed
to the no-load injection volume position (RH ) and
the engine is operated at no-load max. speed.
When the engine is being used at a partial load, the
governor spring functions in the same way at a
lower speed (i, i"-j) as for full load max. speed,
(because the governor spring set load is also
smaller).
Control lever position
Rated speed setting
Control lever position--
-
at partial load (point H)
Full load stopper' ^ f
Tension lever
Angleich spring
-RG
I '. Injection volume
Increase Decrease
/
Governor lever
E
E
cc
3
"1
(with angleich spring)
Rated rack set position » i
No load rack position
Cam speed nc rpm
(8) Stopping the engine
The engine stops when you turn the governor con-
trol lever all the way to stop.
On engines equipped with a stop device, the engine
can be stopped by moving the control rack to the
stop position, regardless of the control lever posi-
tion.
3-2-14

Yanmar 4LHA-HTP Specifications

General

Brand	Yanmar
Model	4LHA-HTP
Category	Engine
Language	English