6. FUEL INJECTION EQUIPMENT
124
(2) Adjusting fuel limit bolt at rated load
1) Adjust the fuel limit bolt to bring the rack position
to the specified value (R
0
) with the governor
control lever towards the fuel increase position,
while keeping the pump at rated speed N
0
.
2) Measure fuel injection volume at rack position
(R
0
).
3) If the injection volume is at the specified value,
tighten the fuel limit bolt lock nut at that position.
(3) Adjusting fuel limit bolt at starting
1) Adjust the fuel limit bolt at starting to bring the rack
position to the specified value (Rs), while keeping
the pump at starting speed Ns.
2) Measure fuel injection volume at starting position
(Rs).
3) If the injection volume is at the specified value,
tighten the fuel limit bolt lock nut at that position.
Note : The figure in the blank ( ) is the indicator.
Rack position (mm)
Pump rpm N (rpm)
At starting
0.5
19
(12)
R
S
15
(8)
R
0
R3
R2
7
(0)
N
Hi
NS
NONi
Fuel limit bolt
at starting
To Next Page
Loading...
