Lombardini LDW 502, Service Manual

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service manual
mod. 051135
6
A
B
C
A
B D
1 - Connect a revolution counter to the engine.
2 - Run the engine and bring it to the operating
temperature.
3 - Turn the idle adjusting screw (A) and set
the engine to the minimum speed required.
4 - Tighten the lock nut (B) when finished.
Important
To decrease the rpm number, loosen the
screw. To increase it, tighten the screw.
5 - Turn the peak-rpm adjusting screw (D) and
set the engine to the maximum speed
required.
6 - Tighten the lock nut (C) when finished.
Important
To decrease the rpm number, tighten the screw
whereas to increase it loosen the screw.
6.8 ADJUSTING MINIMUM AND MAXIMUM IDLE SPEED RPMS
6.9 ADJUSTING INJECTION DELIVERY
6.9.1 Adjusting injection delivery (without
dyno break)
1 - Loosen locknut (A).
2 - Firmly tighten the screw (B) of the flow
limiter.
3 - Start the engine and bring it to the operating
temperature.
4 - Bring the engine to maximim rpm allowed.
5 - Loosen the screw (B) of the flow limiter until
the engine speed starts to decrease.
6 - Retighten the screw rotating it 2.5
revolutions, then fasten with the lock nut
(A).
The adjustment may be performed with the dynamometric
brake (accurate adjustment) or without it (approximate
adjustment).
OVERHAULS AND TUNING