Equipment-class discovery • Systems vary with configuration
What to identify on site-support equipment
Generator, compressor, lighting and pump packages need their actual subcategory and installed-unit plates. The engine alone cannot identify every package component.
Record engine plus alternator, compressor stage, pump or lighting/control identity as appropriate. Preserve voltage, frequency, phase or flow basis only where documented.
A package output rating does not establish electrical, pneumatic or pumping compatibility. Qualified review remains necessary for protection and pressure components.
Assembly identification briefs
Use these component-specific questions to prepare a precise identification record or quote request. The source references explain component families; exact values and machine applications require the correct installed assembly documentation.
Generator alternator heads and voltage regulators
Record generator-set identity and alternator identity separately, including the alternator plate and installed AVR reference. Ask a used alternator seller for provenance and relevant test evidence. A matching frame or nominal output description cannot establish excitation arrangement, electrical configuration or suitability for the complete generator package.
Identification and inspection record
generator frequency
alternator frame
AVR model
Source scope: Alternator-component OEM manual route, separate from generator-set identity; no AVR application or electrical rating assigned. The reference supports component-family context; it does not establish an individual machine application.
Mobile generator engine filters and cooling components
Identify the mobile generator's actual engine and cooling package before comparing filters or cooling parts. Preserve the engine plate and installed filter or radiator references. A used assembly should disclose condition and package contents, while a generator-set model alone may not resolve engine revisions or cooling options.
Identification and inspection record
engine nameplate
service rating
cooling package
Source scope: Engine cooling component taxonomy, including radiator, fan and cooler groups; no installed engine, cooling option or filter selection established. The reference supports component-family context; it does not establish an individual machine application.
Air compressor air ends, filters and separator elements
Record the portable compressor's serial and installed air-end identity separately when seeking separator, filter or assembly parts. Keep the actual cooling arrangement and service references with the inquiry. A rebuilt air end should have traceable test documentation, leaving fluid compatibility, displacement and specific application unresolved until manufacturer-supported.
Identification and inspection record
compressor displacement
oil/water cooling
air-end model
Source scope: Portable-compressor OEM serial/Power Connect parts-book route; actual air-end internal specifications and separator applications not acquired. This reference provides a documentation access route; topic-specific technical details have not been established.
Identify the light tower's mast, lighting and winch assemblies separately from its engine or generator. Record available labels and the fitted mast arrangement. Used equipment should disclose repairs and inspection evidence, while similar tower height or lamp appearance cannot establish the electrical, structural or lifting-component configuration.
Identification and inspection record
mast version
lighting power
winch geometry
Source scope: Public mast, lighting and winch configuration examples; no structural repair specifications or individual machine compatibility imported. The reference supports component-family context; it does not establish an individual machine application.
Portable pump impellers, seals and wet-end assemblies
Identify the portable pump's complete model and installed wet-end arrangement before comparing impellers or seals. Keep existing material and component references with the pumped-fluid description. A used wet end should disclose condition and repairs, while matching housing shape does not establish material compatibility, shaft-seal configuration or operating suitability.
Identification and inspection record
pump material
flow
wetted housing
shaft seal
Source scope: Public pump/wet-end family reference; regional source, without seal, material, flow or individual pump application assignments. The reference supports component-family context; it does not establish an individual machine application.
Distribution panels, breakers and site power controls
Record the site's power-distribution assembly and protective-device identifiers separately from its generator-set identity. Preserve rating plates, available circuit documentation and modification history. A used panel or breaker needs documented configuration and condition, while matching appearance cannot establish voltage, phase, frequency or suitability under the applicable electrical requirements.
Identification and inspection record
voltage
frequency
rated phase
electrical code
Source scope: Component-OEM label identification guidance; no complete distribution-panel design, installed breaker approval or electrical-code certification established. The reference supports component-family context; it does not establish an individual machine application.
Start with the manufacturer, model suffix and installed equipment. The following specialist subjects help describe a sourcing request; they do not identify a specific orderable part.
Alternators
Record the installed assembly identification, its position and configuration. Ask the supplier which documentation connects the proposed replacement to that assembly.
compressors
Record the installed assembly identification, its position and configuration. Ask the supplier which documentation connects the proposed replacement to that assembly.
lighting
Record the installed assembly identification, its position and configuration. Ask the supplier which documentation connects the proposed replacement to that assembly.
pumps
Record the installed assembly identification, its position and configuration. Ask the supplier which documentation connects the proposed replacement to that assembly.
power electronics
Record the installed assembly identification, its position and configuration. Ask the supplier which documentation connects the proposed replacement to that assembly.
For a used or rebuilt component, ask for its donor-unit provenance, inspection record, repair scope and any remaining identification marks. A donor model is context, not proof of fitment to another machine.
Site-support power, compressed air, lighting and pumping branches
Atlas Copco distinguishes aftercooling, water separation and filtration in portable-compressor air treatment. This is one branch of site-support equipment. Generators, light towers, pumps and distribution equipment need separate component records rather than a single general service-package identity.
Architecture and assembly boundaries
A generator combines engine, alternator, regulation and output controls. A compressor combines its airend with cooling, lubrication and separation equipment according to its build. A light tower adds mast, winch and lamp assemblies, while a portable pump has a drive and a wetted end with impeller and seals. Distribution panels connect electrical loads through rated protective equipment. These machines may share a chassis or engine brand, but their working assemblies and evidence requirements remain distinct.
Variants that change the research path
Generator frequency, phase, alternator frame and regulator build must be distinguished from engine output. Compressor pressure class does not identify the airend or separator element. Lamp technology and mast design can change light-tower electrical and mechanical components. Pump liquid service, solids duty and seal materials affect the wetted-end inquiry independently of engine power. A panel breaker needs its exact application and approval context; a similar enclosure or nominal current is not a compatibility decision.
Condition evidence and selection record
Capture all available nameplates, including the engine and driven equipment, and identify the requested position. Record leakage, corrosion, damaged cables, unreadable ratings and mast or mount damage for qualified assessment. A running demonstration cannot certify electrical protection, pressure equipment or pump performance. Rebuilt assemblies need defined scope and test conditions. Leave voltage/frequency configuration, pressure rating, pump duty point and material compatibility blank until exact documentation supports them. The six workpacks remain separate branches, with no implied universal site-support bill of materials.
Specification evidence record
Published values retain their exact reference scope. Empty fields mean the value has not been established; they never mean zero. General model associations do not establish installed or serial-specific fitment.
Site-support power, compressed air, lighting and pumping branches: documented values and open identification fields
Property
Value / status
Scope and interpretation
Driven-equipment identity
Not yet documented
Alternator, airend, pump and lighting assemblies remain separate.
Electrical configuration
Not yet documented
Requires phase, voltage, frequency and applicable rating context.
Fluid/air service rating
Not yet documented
Requires pressure, material and duty basis for the exact assembly.
Unresolved technical and source questions (2)
Installed component build and serial applicability remain undocumented.
Exact ratings, tolerances and acceptance limits require the applicable component documentation.
Original HeavyEQ analysis and selected source facts. No catalogue reproduction licence, manufacturer endorsement or machine-specific compatibility is implied.