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11 LD Workshop Manual_cod. 1.5302.296_5° ed_ rev. 04
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SETTINGS
Settings
1 - ldling speed setting in no-load conditions (standard)
After filling with oil and fuel, start the engine and let it warm up for
10 minutes. Adjust idling speed at 800 ÷ 900 r.p.m. by turning
setscrew 1; then tighten lock nut.
Stop setting
Remove fuel feeding pump and cover.
1) Loosen both bolts fixing plate A.
2) Push injection pump B control rod to the right and keep it in this
position.
3) Push plate A to the right until it touches rod B and stop.
4) Release rod B and push plate A to the right so that rod B has a
stroke of 1 mm.
Tighten both bolts.
Note: Under these conditions no damage can be caused to the
injection pump rack rod stops by sudden impacts due to the
available control solenoids.
Injection pump delivery setting
This setting should be performed at the torque dynamometer.
lf not, setting is only approximate.
The following steps are required:
Loosen delivery limiting device C by 5 turns.
Bring engine to full speed in no-load conditions i.e. 3200 r.p.m..
Tighten limiting device until the engine shows a drop in r.p.m..
Unscrew limiting device C by 1½ turn. Tighten lock nut.
Note: lf the engine, under full load, generates too much smoke
tighten C; if no smoke is observed at the exhaust and the
engine cannot reach its full power unscrew C.
2 - Full speed setting in no-load conditions (standard)
After setting idle speed turn screw 2 and set full speed in no-load
conditions at 3200 r.p.m.; then tighten lock nut.
Note: When the engine reaches the pre-set power full speed
stabilizes at 3000 r.p.m.
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