Doosan P425CWJD - Operational Information; Models; P600 Wjd (7;170), Hp450 Wjd (10;125), & Vhp400 (14;115)

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Book: 23227143 (8-24-2010) Rev CPage16
Operational Information
Models
P600WJD (7/170), HP450WJD (10/125), & VHP400 (14/115)
Power On
When the Ignition switch is turned to the “ON” position:
• Keyswitch signal (24 VDC) supplied to engine ECM from WEDGE.
Startup
When the Ignition switch is turned to the “START” position:
• Engine starter is energized.
• Start/Run solenoid valve (L1) is opened (energized).
When the engine speed reaches 600 RPM (engine start declared):
• Engine starter is de-energized.
• Engine speed is set to 1600 RPM.
When the engine speed reaches 1450 RPM:
• Start/Run solenoid valve (L1) is closed (de-energized).
• Unloader solenoid valve (L2) is opened (energized).
When the separator tank reaches 50 psi:
• Start/Run solenoid valve (L1) is opened (energized).
After 5 seconds:
• Engine speed is set to idle. (1600 RPM until engine coolant temperature reaches
100
o
F, then idle is set to 1500 RPM).
Load
When the Service Air switch is pressed:
• Engine speed is set to 2200 RPM.
When the engine speed reaches 2000 RPM:
• Start/Run solenoid valve (L1) is closed (de-energized).
After 2 seconds, if the regulation system pressure is 4 psi or greater:
• Engine speed control is engaged.