Tadano ATF100G-4, ATF200G-5 and ATF90G-4: axles and engine editions

Four-axle ATF100G-4 versus five-axle ATF200G-5

The January 2020 American ATF100G-4 book specifies a six-section boom extended by a single telescope cylinder and a standard four-axle carrier. The first axle steers but is not driven in the standard arrangement. The other three drive, with an all-axle-drive version listed as an option.

Identify the actual drive arrangement before treating every G-4 as mechanically identical.

The ATF200G-5 uses five axles. Its third axle is steered but undriven, and its second axle's drive can be selected. Both books describe AS-Tronic gearboxes, but a common transmission family does not give the smaller crane the larger one's axle distribution or road equipment.

The ATF100's separate steering diagram changes rear-steering behavior with speed; that steering threshold is not the crane's maximum travel speed.

The ATF100 dimension drawing places overall height beside the side elevation and tire-dependent width below the plan view. Those arrows describe different axes. A transport estimate needs the fitted tires and suspension condition, as well as the correct boom and hook arrangement, before using either dimension.

Although these later books share an OM934LA superstructure engine rating, their front equipment differs. The ATF100's main boom ends at a shorter extension than the ATF200's. The latter also lists a hydraulically telescoping and luffing jib among its options.

That jib is a separate assembly with its own geometry, not an extra extension of the ordinary main-boom chart.

Sources: ATF100G-4 and ATF200G-5, January 2020 American technical books.

The archived ATF90G-4 has an earlier engine arrangement

Tadano's July 2013 ATF90G-4 booklet identifies OM924LA in the upper crane and OM501LA in the carrier, both under its Tier4i specification. OM470LA is not the upper-engine identity shown in that document. The upper engine uses its own diesel and DEF supply, distinct from the carrier's tanks.

The same booklet provides Power and Economy transmission settings, while the carrier has its own two-stage transfer case. These selections concern different parts of the drive system. Its front axle is undriven in the standard configuration; an optional driven version is described separately.

Counterweight is another configuration boundary. The ATF90 tables distinguish a standard installation from larger optional combinations, while the ATF100 and ATF200 books provide their own transport and operating arrangements. A photograph showing mounted counterweight cannot establish that the complete set specified by a selected chart is present.

Check the actual pieces against that model's chart and distribution sheet.

Source: Tadano America ATF90G-4, July 2013, equipment and counterweight sections.