Cummins QSJ2.4 C20-C60 N6 Generator Sets Parts Manual – PowerCommand 1.1 PDF

Description

Cummins QSJ2.4 Generator Set Parts Manual – C20 N6 to C60 N6H

This is the illustrated parts manual for the Cummins Power Generation generator sets built around the QSJ2.4 spark-ignited engine and fitted with the PowerCommand 1.1 control system. It covers the naturally aspirated N6 line and the turbocharged N6H line, giving you a single reference for every part Cummins Power Generation added or modified on these units, plus the part numbers you need to order replacements.

Each assembly is presented as an exploded illustration with reference callouts, matched to a table listing item number, part number, description and quantity. That layout is what makes this manual workable at the bench – you can see how a bracket, hose, sensor or cover sits in relation to everything around it, then read the exact part number straight off the facing table.

File Details

• Manual type: Illustrated Parts Manual
• Brand: Cummins Power Generation / Cummins Onan
• Engine: QSJ2.4
• Control: PowerCommand 1.1
• Generator set models: C20 N6, C22 N6, C25 N6, C30 N6, C36 N6, C40 N6, C30 N6H, C36 N6H, C40 N6H, C45 N6H, C50 N6H, C60 N6H
• Publication number: A046Z094
• Issue: Issue 5 – 3-2014
• Language: English
• Page count: 250
• File format: PDF

Chapters Covered

• Safety Precautions
• About This Manual
• QuickServe Online (QSOL)
• Related Literature
• Model Identification
• Abbreviations
• Labels
• Consumables
• Paint and Thread Sealant
• Engine
• Engine Accessories
• Engine Service Parts
• Engine Pressure Switch and Pressure Sender
• Silencer
• Exhaust Connection
• Fuel Supply (single fuel and dual fuel, NG/LP, USA and Canada)
• Low Pressure Switch
• Air Cleaner (heavy duty and normal duty)
• Cooling System
• Radiator Guards – enclosed and open sets
• Coolant Heater – USA
• Coolant Heater – Canada
• Generator – Complete
• Generator Fasteners
• Generator Heater
• Terminal Box
• Skid
• Skid Pan
• Battery Charger
• Battery Tray
• Enclosure (Green and Sandstone, aluminium, 1st and 2nd stage)
• Enclosure Cover Components
• Roof Components
• Display Panel (E-Stop and Bargraph variants)
• Control Box (Relay, Aux-101, Aux-101 and Relay)
• Control Box Components
• Generator Electrical Harness Service Parts
• Circuit Breaker (2 pole H frame, 2 and 3 pole J frame, 3 pole H frame)
• Circuit Breaker Door
• Current Transformer
• Accessories and Kits
• Muffler (industrial, residential, critical)
• Battery
• Battery Heater
• Stand Alone Battery Charger (15A – 12V)
• Inlet Duct Kit
• Excitation Boost System Kit
• Enclosure Upgrade Kit
• Coolant Heater Kit – USA
• Coolant Heater Kit – Canada
• Generator Heater Kit
• Circuit Breaker Lock Out
• Pipe Package Exhaust Kit
• Remote HMI Display Kit (HMI 211 and HMI 112 Bargraph)
• Audible Alarm Kit
• Customer Relay Kit
• Auxiliary Input/Output Signal Kit
• E-Stop Kit
• Remote Annunciator Kit
• Miscellaneous Accessory Kits

What you get here is a full parts breakdown of the generator set as Cummins Power Generation built it, not a generic engine book. The manual separates the base QSJ2.4 engine and alternator components – which you order from the engine or alternator manufacturer using the nameplate – from the parts that Cummins Power Generation specified, modified or added. Those CPG-specific parts are the ones documented in detail, with their own part numbers, so there is no guesswork about which bracket, harness, shield or fitting belongs to which build. Fuel supply coverage is broken out properly by market: single fuel NG/LP for Canada, single fuel NG/LP for USA, dual fuel NG/LP with automatic changeover for USA, and the separate fuel system module pages for each. Cooling, exhaust, air cleaner, enclosure and control box sections follow the same logic, so you can walk the machine from the radiator end to the circuit breaker without leaving the file.

Coverage by Model Group

The manual is organised so that model-specific illustrations sit under the correct model heading rather than being merged into one generic drawing. Air cleaner pages split heavy duty (C36 N6, C40 N6, C30 N6) from normal duty (C20 N6 through C30 N6H in one group, and C36 N6 through C60 N6H in another). Exhaust connection pages split C30 N6, C36 N6, C40 N6 and C60 N6H away from the naturally aspirated N6 and smaller N6H units. The generator, skid and enclosure sections are similarly partitioned by alternator frame – CA115, CA125 and CA135 – so you match the right skid, vibration isolator and roof panel to the set in front of you.

Circuit breaker pages cover the 2 pole H frame, 2 and 3 pole J frame, and 3 pole H frame, with breaker part numbers listed by amperage rating from 15A up to 250A. Current transformer pages give the CT primary rating by model group. Control box pages cover the relay configuration, the Aux-101 configuration, and the combined Aux-101 and relay build, including the generator electrical harness service parts with relays, fuses and fuse holders broken out individually.

How to Use the Part Numbers

Every illustration in the manual is keyed with numbered callouts. The matching table on the facing page gives the item number, the Cummins part number, the description and the quantity required. Where a part number is superseded or a kit replaces individual components, the kit page lists its contents so you can order the assembly or the individual piece. Consumables – oil filter, air filters, timing belts, spark plugs and the replacement HD filter for the C36 N6 and C40 N6 – are listed together at the front for quick reference, along with the Onan Green enamel and Sandstone touch-up paint and the thread sealant.

Before ordering, note the manual’s own instruction: always quote the MODEL and SERIAL NUMBER from the Cummins Power Generation nameplate. The engine serial number is on the data tag or stamped on the block, and the control software number is on the ECM. The manual provides blank fields at the front to record all four so the information is on hand when you contact your distributor.

Why This Parts Manual Belongs in the Workshop

Ordering the wrong part costs a second delivery, a second teardown and another day of downtime. This parts manual removes that risk by tying every component to a specific illustration and a specific model heading. If you are rebuilding the cooling system on a C45 N6H, replacing a fuel solenoid on a dual fuel C60 N6H, chasing an oxygen sensor on a C40 N6, or matching a replacement roof panel and louver set to an aluminium enclosure, the drawing and the number are on the same spread.

It also makes quoting realistic. When you can see that a job involves a turbocharger, an oil tube, a heat shield, a flexible hose, a gasket and four hollow-head screws – each with its own number – you can price the work properly instead of discovering the extras halfway through. The same applies to the smaller items: clamps, ties, grommets, edge seals, flare nuts and flange nuts are all listed, which is where most incomplete parts orders actually fail.

IMAGES PREVIEW

The file arrives as an instant PDF download after payment. Nothing ships, nothing waits on a courier. Open it on a laptop in the office, a tablet at the machine, or print the pages you need and take them into the enclosure with you – greasy fingerprints on a printed sheet cost nothing, and you can reprint any page whenever you want.