Options being compared and the decision they affect
Useful for: Construction and delivery fleets choosing where a truck-mounted crane should sit on the chassis
Crane location changes both transport and lifting geometry. The same nominal crane can create a different chassis load distribution and working envelope when moved on the frame.
The choice should begin with where loads are picked and placed, which sides must remain accessible and how the truck will carry cargo between lifts.
Comparison inputs
Normalize these operating and configuration inputs before comparing vehicle types or systems:
- 01Load mass, dimensions and pickup locations
- 02Required placement radius and working sectors
- 03Cargo-body length and loading method
- 04Selected crane model and mounting instructions
- 05Chassis wheelbase, axle ratings and frame limits
- 06Outrigger, subframe and service-access requirements
Option comparison matrix
Read across every row before selecting an option. No single advantage should override a failed operating or evidence condition.
Scroll horizontally to view all columns.
| Decision factor | What to choose or check | Limit or condition |
|---|---|---|
| Working geometry | Place the crane to serve the required pickup and placement sectors. | Boom reach alone does not establish chart capacity. |
| Transport layout | Preserve usable cargo space, restraint points and service access. | Mounting position can remove usable body length or create rear overhang. |
| Axle reactions | Calculate transport and relevant setup reactions for the completed layout. | Gross vehicle mass compliance does not prove every axle condition. |
| Support system | Integrate subframe and outriggers to the approved crane and chassis design. | Mounting brackets cannot be improvised from a similar project. |
From comparable inputs to a controlled choice
A useful comparison holds the mission and project conditions constant, then tests each option against the same evidence requirements.
- 01Frame the comparison
Behind-cab versus rear-mounted truck crane selection
- 02Normalize buyer inputs
Load mass, dimensions and pickup locations; Required placement radius and working sectors
- 03Compare like for like
Working geometry and Transport layout must both pass.
- 04Confirm the chosen evidence
Mission lift and cargo schedule; Controlled general-arrangement and subframe drawing
Comparison evidence checklist
Ask for evidence that is traceable to the selected model, configuration, vehicle or project scope. A record from another project is context, not verification.
- Mission lift and cargo schedule
- Controlled general-arrangement and subframe drawing
- Completed-vehicle mass and axle calculation
- Crane installation, function and commissioning records
Comparison traps
Choosing position from photos
Better comparison: Use the required working sectors and completed layout.
Checking only transport axle loads
Better comparison: Review the setup and support conditions required by qualified design.
Ignoring service and cargo access
Better comparison: Show maintenance clearances and the real loading workflow on the drawing.
Limitations
- This comparison does not design a subframe or approve a crane installation.
- Qualified engineering and manufacturer requirements control the final mounting.
- Do not operate without an approved installation, applicable load chart, stable support and verified safety systems.
Evidence scope and technical basis
Each source is limited to what it can support. This makes the evidence chain readable to buyers, search engines and AI systems without turning a general source into a project claim.
Supports: Controls the project-input, quotation, approval and inspection workflow described in this guide.
Does not establish: It does not replace the signed quotation, approved specification, selected OEM documents or unit-linked project records.
Supports: Provides public checklists and worksheets; the signed project documents remain controlling.
Does not establish: It does not replace the signed quotation, approved specification, selected OEM documents or unit-linked project records.
Supports: Defines the relevant product family and published configuration boundaries. Project-specific ratings require the selected OEM documents.
Does not establish: It does not replace the signed quotation, approved specification, selected OEM documents or unit-linked project records.
Supports: Official U.S. reference supporting configuration-specific load charts, stability factors, inspection identity and removal of hazardous deficiencies. Local rules may differ.
Does not establish: It is authority, jurisdiction or subject specific and does not approve the selected vehicle for another destination or project.