Heavy vehicle modifications need a pack that names the parts, the drawings and the install sequence. A missing drawing or an unnamed part is what later site checks trip over. Customised kits for collision avoidance, electrical distribution or mine-spec fitouts still need that pack before steel is cut.

Kit design should record the applicable site and vehicle rules from the first specification, not only at handover. That record is not a certificate.

What a Kit Design Pack Has to Hold

Why a Generic Parts List Is Usually Not Enough

A generic parts list rarely covers a mine-spec or heavy vehicle change. Customised kits for collision avoidance, electrical distribution or similar fitouts add mounts, harnesses and interfaces that have to be drawn together. Each added part still needs a name, a drawing and an install note.

Vehicle and site rules sit with the operator and the approving body. Kit design can name the rules the client has listed. It cannot stand in for a vehicle modification approval or a site entry decision.

Missing records show up later as delayed site checks, extra supplier calls and rework. That is an admin and schedule cost. It is not proof of an insurance outcome, a shutdown or a safety incident.

Why Records Belong in Design

Leaving the file until after fabrication is a poor habit. A change found after steel is cut costs more to unwind. The useful habit is to name the parts and the checks before the kit is built. That is a design habit, not a certification process.

How a Kit Pack Is Built

A useful kit pack has three parts: the rules the client named, the drawings and checks used to build it, and the file handed over with the kit. That structure helps later audits. It does not turn the pack into a certificate.

Naming the Rules That Apply

The process begins by writing down the rules the client and the site have named for this job. The pack can then map each drawing and part to that list. If a rule is not named, the pack cannot invent it.

Design reviews can sit at concept, detailed drawing and pre-build. Each review is a check that the drawings still match the named parts and the named rules. It is not a formal design certificate.

Documentation should let someone find the drawing, the part and the supplier file without a scavenger hunt. That supports later checks. It is not a claim that every decision has a regulatory justification on file.

Design, Check and Record

Name the rules first. Check the parts and the fit next. Keep the file in one place. System design is the live service that holds those mechanical and electrical interfaces in one model.

Design-Phase Records

The pack begins when the client requirement becomes a parts and drawing list.

Vehicle and Site Rules Named in the Pack

If the client has named vehicle or site rules, those names belong on the drawing list. Customized kits still need those rules written in the pack. 3D services can lock as-fitted positions before later kits are copied. The pack does not approve the vehicle.

Mounts and guards are a drawing and check job. Finite element analysis is the live service used to review stress, deflection and similar load cases on brackets and frames. Underground and surface jobs can have different client lists. The pack records the list it was given.

Electrical Drawings and Component Files

Harnesses, power distribution and control interfaces need drawings. Electrical engineering solutions cover schematics, harness design, cut lists and termination notes. That is the published electrical scope. It is not a statement that the finished vehicle meets every electrical code.

Component files should travel with the kit. 3D services can lock as-fitted positions before later kits are copied. Supplier certificates can sit in the pack when the supplier issued them. That is a file, not an EIG certificate.

Documentation and Traceability

Design documentation is for install, later service and later checks. Engineered Installations Group keeps those records with the same pack. The file should be usable on the floor, not only in an audit folder.

Drawings and Component Files

Each drawing should say what it is for. Vibration data analysis is the live service used to look at shake on a mount or module. Calculations in the pack show the numbers used. They do not, by themselves, prove a later site decision.

If a supplier issued a certificate or test report, that file should sit with the part number. A site inspector can then read the supplier document. The pack does not replace a site entry approval or an insurance decision.

Install Notes and Test Notes

Install notes should match the kit that shipped. Checkpoints can cover torque, polarity, continuity and fit. Those notes help the installer. They are not a hidden second certificate.

Test notes can cover bench checks, install checks and commissioning checks. Keep the results with the kit file. Vehicle registration, site entry and insurance stay with the operator and the approving body.

Checks Before and After Fit

Checks move from part, to fitted assembly, to the running system. That sequence is useful. It does not convert a drawing pack into operational approval.

From Part Check to Fitted Check

Part checks can happen before install. Vibration data analysis can show whether a newly mounted module is seeing more shake than the design assumed. Workshop installation services give a controlled place to do those checks before a vehicle goes back to site.

Fitted checks can cover continuity, insulation resistance, polarity, torque and basic interface function. Those checks confirm the kit was put together as drawn. They do not keep a part compliant after someone later changes it.

Commissioning Notes

Functional checks compare the fitted system with the design notes for that job. Sensor aiming, lighting function and similar items can be recorded. Record the result. Do not call it a regulatory pass.

Final commissioning notes close the file from drawing to running check. On-site field services can do that check in the place the vehicle will work. Site conditions still belong to the site.

What Handover Can Include

Approvals Stay With the Operator

Approvals vary by jurisdiction, vehicle type and modification scope. Those submissions sit with the operator and the approving body. A kit pack can supply drawings, test notes and supplier files. It does not navigate the approval or issue the certificate.

Site entry checks are run by the site. A complete kit file can make that conversation shorter. It does not pass the inspection.

Client Handover

Handover can include design records, test reports and supplier certificates. That pack supports later checks. It is not a certificate that the vehicle meets every rule.

After Handover

Updates After the Kit Ships

Rules change. The live site does not show a service that monitors Australian Design Rule updates for installed kits. If a later change is needed, treat it as a new scope.

Maintenance notes can travel with the kit so later service uses the same parts and torque figures. A later modification still needs its own check. Do not treat old notes as a standing approval.

For a customised kit project, Contact us to check which records the current scope needs.