Cummins Power Generation Control Systems Troubleshooting Manual: QSX15, QSK23, QSK45, QSK60, QSK78, QST30 (4021419)

Cummins Bulletin 4021419 covers the electronic control systems on generator-drive engines from the 15 litre QSX15 up to the 78 litre QSK78, including the QSK23, QSK45, QSK60 and QST30.

The sections are E (engine and system identification), F (familiarization), TF (troubleshooting by fault code), TS (troubleshooting by symptom), 19 (electronic engine controls) and V (specifications). If a generator set faults, derates or shuts down, this is where to start.

What the manual covers

• Section E: Engine and system identification
• Section F: Familiarization
• Section TF: Troubleshooting fault codes
• Section TS: Troubleshooting symptoms
• Section 19: Electronic engine controls
• Section V: Specifications

Compatibility

• Models: QSX15, QSK23, QSK45, QSK60, QSK78, QST30
• Application: Power generation (generator drive)
• Publication: Bulletin 4021419
• Manual type: Control system troubleshooting and repair

Before you buy

It deals with the control system only. Mechanical overhaul of these engines is covered in each engine's own service manual.

Your engine's dataplate shows the engine model, the engine serial number (ESN) and the CPL number. Compare those with the models above. If you're not sure, email us the dataplate details and we'll check for you.

File format

Digital download, delivered as a ZIP file. Unzip it before opening. Opens on a computer, tablet or phone.

We're an independent seller and are not affiliated with or endorsed by Cummins. Brand and model names are used only to identify the engines this manual covers.