VE-TYPE INJECTION PUMP — Testing of Injection Pump (Cont'd)

EF & EC-688prose procedure

CD20 diesel engine (VE-type injection pump). Maximum speed adjusting screw set by turning counterclockwise; angle β per S.D.S.

2
Pour test oil into fuel injection pump.
Test oil should be ISO4113, SAE J967d test oil or its equivalent.
SEF950
3
Install fuel injection pump to pump tester.
SEF567
4
Connect pump tester piping.
5
Make sure governor shaft is properly installed.
SEF500
6
Run in fuel injection pump as follows:
1. (1)
  Maintain test oil in tank at 45 to 50°C (113 to 122°F).
2. (2)
  Set control lever at "full-load" using a spring. Set maximum speed adjusting screw in position shown, by turning counterclockwise. β: Refer to S.D.S.
3. (3)
  Furnish voltage of 12 volts to activate fuel cut solenoid valve.
4. (4)
  Rotate fuel injection pump by hand to see if it moves smoothly.
5. (5)
  Rotate fuel injection pump at 300 rpm to make sure all air inside pump chamber is discharged through overflow valve.
6. (6)
  Set feed oil pressure at 20 kPa (0.20 bar, 0.2 kg/cm2, 2.8 psi).
SEF798A

Specification	Value
Governor shaft dimension "L"Step 5 — governor shaft installation check	1.5 - 2.0mm (0.059 - 0.079 in)
Run-in test oil temperatureRun-in step (1)	45 - 50°C (113 - 122°F)
Fuel cut solenoid valve voltageRun-in step (3)	12volts
Run-in rotation speedRun-in step (5) — air bleed	300rpm
Feed oil pressureRun-in step (6)	20kPa (0.20 bar, 0.2 kg/cm2, 2.8 psi)

Governor shaft dimension "L"Step 5 — governor shaft installation check

1.5 - 2.0mm (0.059 - 0.079 in)

Run-in test oil temperatureRun-in step (1)

45 - 50°C (113 - 122°F)

Fuel cut solenoid valve voltageRun-in step (3)

12volts

Run-in rotation speedRun-in step (5) — air bleed

300rpm

Feed oil pressureRun-in step (6)

20kPa (0.20 bar, 0.2 kg/cm2, 2.8 psi)

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