- 83 -
FOCS Workshop Manual_cod. 1.5302.351_7° ed_ rev. 06
8
192
193
Injection pumps delivery balancing
In case the balancing error read on the test pieces is greater than 2
cm³/min, then injection pumps deliveries should be adjusted.
Plate 4 and rod 3 are blocked by screws 1 and 2. Loosen them.
Move plate 4 rightwards with respect to rod 3 if you want to
increase delivery.
If moved leftwards delivery decreases. Make very small movements
with the plate.
Tighten screws 1 and 2 at a torque of 1,1 Nm.
Note: Each time a pump/injector is replaced it is necessary to
balance the deliveries.
Instrument connection
Place the instrument 1, se.no. 7104-1460-127 at least 20 cm above
the pump/injector level.
Connect pipe A (outlet from every instrument test piece) with pipe A
(inlet of every pump/injector) and pipe B (return to the instrument)
with pipe B (outlet from the pump/injector).
Open tap 2 and 3 of each pipe and fill the instrument with diesel.
Start the engine and bring it to 1500 rpm idle running.
Close the fuel supply to the engine from the instrument’s tank using
lever 4 and after 1 minute observe the levels in the test piece.
If a level goes down more than the others it is necessary to decrease
the delivery of the corresponding pump (see below) and vice versa
to increase the delivery if the level increases.
Fuel system
To Next Page
Loading...
Need help?
General
