Alamo FX17, FX21 manual Drawbar, Tractor Hydraulics, Front End Weight, Power Take Off PTO

OPERATION

OPERATION

3.4 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.

3.5 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 operate the mower hydraulics. During operation, the tractor hydraulics must be set in the float detent to enable the mower sections to follow the contour of the terrain.

3.6 Front End Weight

Maintain a minimum of 20% total tractor weight on the tractor front end at all times. Front end weight is critical to maintain steering ability and to prevent the front end from rearing up. Consult your authorized tractor dealer for front weights and carriers.

3.7 Power Take Off (PTO)

Only operate the mower on a tractor equipped to operate at 540 rpm PTO speed. Tractors operating at 540 rpm will have a 1-3/8” diameter 6-spline PTO shaft stub. Refer to the tractor operator’s manual for operating the PTO at the proper speed.

DO NOT use a PTO adapter to attach a non-matching Implement driveline to a Tractor PTO. Use of an adapter can double the operating speed of the Implement resulting in excessive vibration, thrown objects, and blade and implement failure. Adapter use will also change the working length of the driveline exposing unshielded driveline areas. Serious bodily injury and/or equipment failure can result from using a PTO adapter. Consult an authorized dealer for assistance if the Implement driveline does not match the Tractor PTO.

(S3PT-14)

Never operate the Tractor and Mower if the Implement input driveline is directly connected to the Tractor transmission. Tractor braking distances can be substantially increased by the momentum of the rotating Mower blades driving the Tractor transmission even though the Tractor clutch has been disengaged. Install an over running clutch between the Tractor PTO and the Mower driveline to prevent this potentially dangerous situation. (S3PT-16)

FX17/FX21 02/11 Operation Section 4-6

© 2011 Alamo Group Inc.