The tools listed will be needed to do the following procedure:
MEL1237 – Adapter Fuel Line
MEL1173-1 Pressure Gauge
To check the discharge pressure at the fuel injection pump, use the following procedure:
Disconnect a high pressure fuel line from the injection pump. Loosen the other end of the same fuel line so it can be turned away from the fitting.
Connect the adapter fuel line (Item 1) to the fitting and connect the pressure gauge (Item 2) [Figure 60-70-6].
Move the speed control lever to the high engine idle position.
Turn the flywheel to increase the pressure. If the pressure can not reach the allowable limit, replace the injection pump assembly.
With the speed control lever at the low engine idle position, turn the flywheel until the pressure is at 18630 – 20105 kPa (186 – 201 bar) (2702 – 2916 psi).
Turn the flywheel back approximately one-half turn. Keep the flywheel at this position, and measure the time it takes the pressure to decrease from 12755 kPa (127,5 bar) (1850 psi).