Engine Testing; Braked Engine Test; Rpm Regulation - Lombardini 15 LD 500 Workshop Manual

79
HUNTING RATE
DIMINISHES
80
D
A
81
COMPILER TECO/ATI REG. CODE
1-5302-637
B
B
A
A
8° MAX
2,5 mm
RATE
DIMINISHES
MORE SLOWLY
STOP
D
B
C
MODEL N°
51078

Rpm regulation

Fill the engine with oil and diesel fuel and allow it to warm up for 10
minutes.
With the engine hot, adjust the idling rate (A, fig. 79) to 1,300 rpm
and the peak no-load rate (B, fig. 79) to:
- 3,150 rpm for engines set at 3,000 rpm on load
- 3,750 rpm for engines set at 3,600 rpm on load

Braked engine test

Carry out the following operations after having positioned the
engine on the brake:
1. Start the engine and allow it to idle
2. Allow the engine to run in before checking the maximum power
Running-in table
Time (min)
5
15
30
30
30
5
Consult the power curves in chapter 5.
There may be hunting problems, slowness or misfiring if the
injection pump is changed. Correct these faults by turning the pump
casing a few degrees in relation to the engine casing, following the
directions indicated in fig. 80.
Fuel limiter.
The fuel limiter has a torque corrector device (fig. 81) that consists
of the following parts:
A) Torque corrector cap
B) Maximum power flow rate adjuster
C) Spring load adjuster
D) Locking nuts
The adjustments can only be made to the exhaust brake. It is
therefore inadvisable to tamper with the corrector adjuster (C fig.
81). The setting of adjuster B (fig. 81) can only be modified if work
has been done on the injection pump or regulator, if the engine
produces a lot of smoke or has insufficient power.
DATE OF ISSUE
00
REVISION
02-04

ENGINE TESTING

RPM
2000
3000/3600
3000/3600
3000/3600
3000/3600
3000/3600
DATE ENDORSED
29.02.2004
XIV
Load
0
0
30%
50%
70%
100%
39