Yanmar 4LHA-HTP - Page 421

hapter 3 Fuel Injection Equipment
3. Fuel Filter
,4LHA Series
LHA-HTE/HTZE/HTP/HTZP
Pre-stroke 0.2
1. Settings
Pump Speed
(rpm)
Settings
Charge-air
Press (mmAg)
Difference in
delivery (cc)
1.1 Timing device travel 1000
1.1 - 1.5mm
1.2 Supply pump pressure 1000
0.36-0.42(3.7-4.3) MPa(kgf/cm
2
)
Full load delivery without
charge-air pressure
1000 80.0- 81.0 cc/IOOst
4.7
1.3
Full load delivery with
charge-air pressure
cm
3
/1000st
1.4 Idle speed regulation
400
11.0-15.0 cm
3
/1000st
2.5
1.5 Start 100
100.0-140.0 cnWIOOOst
1.6 Full-load speed regulation
1840 13.0-19.0 cirvVIOOOst
1.7 Load Timer Adjustment cm
3
/1000st
2. Test Specifications
2.1 Timing device
N = rpm
mm
1000
1.1-1.5
1500
2.0-2.9
2.2 Supply pump
N = rpm
MPa(kgf/cm2)
1000 1500
0.36-0.42(3.7 - 4.3) 0.47-0.53(4.8 - 5.4)
Overflow delivery
N = rpm
cm
3
/10s
1000
45.0-88.0
2.3 Fuel deliveries
Speed control lever
End stop
Switch-off
Idle stop
Partial load
2.4 Solenoid
Pump Speed
(rpm)
1900
1840
1650
1500
1000
100
400
400
500
Fuel delivery cm
3
/1000sts
Max. 40
12.5-19.5
83.5 - 90.5
84.8-91.8
79.5-81.5
11.0-15.0
Max. 8.0
Charge-air
press.(mmAg)
max. cut-in voltage: 8V 16V
test voltage: 12V-14V 24V-26V
3. Dimensions
Designa-
tion
for assembly
and adjustment
mm
K
KF
MS
3.0 - 3.2
5.4-5.6
0.9-1.1
a
A
21-29 deg.
mm
B
35 - 45 deg.
mm
y
c
deg.
mm
Observations:
For detail, ask the ZEXEL.
3-1-64