Air Pressure Regulator - Bosch EPS 625 Manual Original

en 52 | EPS 625 | Product description
3.5.8

Air pressure regulator

On certain types of pumps which use manifold pressure
compensation (LDA), pneumatic supply has to be pro-
vided. The pneumatic supply (Fig. 3, Pos. 7) is connect-
ed to the manifold pressure inlet on the fuel injection
pump via the hose for LDA (supplied with the EPS 625,
part number F 002 DG3 9K0).
The air pressure to be used for calibration is specified
in the test specification of the fuel injection pump.
The air pressure value can be viewed on the gauge
(Fig. 3, Pos. 5) on the front panel. The air pressure
is regulated by means of the air pressure regulator
(Fig. 3, Pos. 2).
The air pressure regulator receives the air supply from
the main pneumatic supply of the shop via the pneu-
matic filter (Fig. 9, Pos. 1). The pneumatic filter has a
auto-drain feature through which the mist gets filtered
and is routed out of the EPS 625 through a hose.
i
Collect the discharged water in a container and dis-
pose it at least once a week.
Fig. 9: Position of pneumatic filter
1 Pneumatic filter
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Fig. 10: Increasing the air pressure
1 Air pressure regulator
To increase the air pressure:
1. Pull the cap (Fig. 10, Pos. 1) and unlock the air pres-
sure regulator.
2. Rotate in the clockwise direction. Observe the pres-
sure on the pressure gauge (Fig. 3, Pos. 5). Rotate
the air pressure regulator till the required pressure is
attained.
3. Press and lock the air pressure regulator.
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Fig. 11: Decreasing the air pressure
1 Air pressure regulator
To decrease the pneumatic pressure:
1. Pull the cap and unlock the air pressure regulator.
2. Rotate in the anticlockwise direction. Observe the
pressure on the pressure gauge (Fig. 3, Pos. 5).
Rotate the air pressure regulator till the required
pressure has been attained.
3. Press and lock the air pressure regulator.
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Robert Bosch GmbH