Factory Acceptance Checks for a Four-Wheel-Drive Tractor
Buyers should define measurable pass or fail checks for the electronically controlled four-wheel drive, the 48 forward / 24 reverse transmission, the 0.36–40 km/h speed range and the 114 L/min hydraulic flow before signing off a factory acceptance test.
A buyer specifying a four-wheel-drive tractor should decide up front which functions must be demonstrated, not merely listed, before the factory acceptance test is signed off. The most useful starting point is the electronically controlled four-wheel drive: ask the supplier to show engagement and disengagement under load, confirm how the control behaves at low speed, and agree what counts as a pass.
Build the rest of the test around the catalog reference values, treating them as reference only. For the 48 forward / 24 reverse transmission, ask for a documented sequence check of every ratio and a demonstration that the 0.36–40 km/h operating range is reached as stated. For the 114 L/min hydraulic flow, agree a test point, instrument and tolerance in advance, and record the result against the reference figure.
Practical questions for the request for quotation: which checks are witnessed, what instrumentation is used, what records are supplied, and what happens if a check fails? A conditional example: if four-wheel drive does not engage cleanly at low speed, is that a rejection or a rework item?
Before requesting a quote, confirm with the supplier which acceptance checks are included, how each pass or fail is measured and recorded, and whether the catalog specifications are verified on the supplied model or only stated as reference values.