Tractor selection, Attachment to tractor, Do not tighten the nut at this stage – Alamo Swingtrim User Manual

Page 74: Tighten the check chains/stabilizer bars, Tractor selection -2 attachment to tractor -2, Assembly, Assembl y

ASSEMBLY

SWINGTRIM 03/09

Assembly Section 3-2

ASSEMBL

TRACTOR SELECTION

The SWINGTRIM is specifically designed to be fitted to all tractors with Category I linkage facility and a
minimum weight inclusive of ballast to manufacturers specifications, of 650 kg (1430 lbs.).
Check chains/stabilizer bars must be available to hold the machine firmly in position during transport and
operation.
The tractor selected must have a relief valve setting between 2000 PSI (110 Bar) and 3000 PSI (210 Bar).
In addition to tractors which operate on a “closed center” hydraulic principle e.g. John Deere are unsuitable.

Ballast Weight
Irrespective of the size of the tractor it must be stable while operating the Swingtrim under all conditions. Due
regard must be paid to operating on slopes and front end ballast as well as rear wheel weights to
counterbalance the overhang of the cutterbar should be added as appropriate.

ATTACHMENT TO TRACTOR

Unbolt the upper halves of the yoke and fit them on either side of the tractor’s top hitch bracket with the 3/
4” UNF nut and bolt provided. If the tractor has only one top hitch position the bolt will replace the existing
top hitch pin. If more than one location is available, mount the yokes through an alternative position as it
will make it easier to put the machine on and take it off the tractor.

Do not tighten the nut at this stage.

Attach the machine to the three-point linkage and raise to give 200-250 MM (8”-10”) clearance under the
lowest part of the frame.

Rebolt the yoke halves together. It may be necessary to raise or lower the machine on the linkage to
achieve hole alignment. Adjust the top link until the main frame is vertical.

Tighten the nut and bolt securing the upper yoke just enough to eliminate any sideways movement. Do not
overtighten and squeeze the top hitch brackets.

Tighten the check chains/stabilizer bars.

Release its holding chain and position the control valve to suit the tractor and operator. This is achieved by
a combination of height adjustments in the mounting bar attachment and by bending the mounting bar
itself.

Turn the parking leg upside down and pin in position.