Operator`s manual

OPERATION

TX165A,135A,115A 02/11 Operation Section 4-6

OPERATION

2.4 Drawbar

The tractor drawbar must be positioned at a certain

length based on the operating speed of the mower

to ensure proper driveline operation. 540 RPM

mowers require the drawbar length measured from

shaft end to hitch pin hole to be positioned at 14”.

Ensure the drawbar is rated to carry the tongue

weight of the mower.

2.5 Tractor Hydraulics

The mower is raised and lowered with three hydraulic cylinders, one for each section. Hydraulic lines are

plumbed together and controlled by a single tractor hydraulic selective control valve. The tractor must be

equipped with one single acting selective control valve with float detent to enable the mower sections to follow

the contour of the terrain.

2.6 Front End Weight

A minimum of 20% total tractor weight must be maintained on the tractor front end at all times. Front end

weight is critical to maintain steering control and to prevent the tractor from rearing up while driving. If the

front end is too light, add weight until a minimum of 20% total weight is reached on the front tires. Front

weights and weight carriers can be purchased through an authorized tractor dealership. OPS-U- 0005

2.7 Power Take Off (PTO)

Depending on the unit, the mower is designed to operate at a PTO speed of 540 or 1000 RPM. Most tractors

operate at either 540, or a combination of 540 and 1000 RPM PTO speeds. The operating speed of the

mower and tractor can be determined by the number of splines on the driveline yoke and PTO output shaft.

Those operating at 540 RPM will have a 6-spline shaft and those operating at 1000 RPM will have a 21-spline

shaft or a 1-3/4” 20 spline shaft. Refer to the tractor owner’s manual for instructions to change PTO speeds on

models that operate at more than one speed.

If operating an older model tractor where the tractor’s transmission and PTO utilize one master clutch, an

over-running clutch must be used between the PTO output shaft and the driveline of the mower. An

authorized tractor dealer can provide the over-running clutch and its installation if needed. OPS-U- 0006