2.4 Front End Weight

OPERATION

OPERATION

2.4 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

2.5 Drawbar-Pull Type Mower

For equipment operating at 540 RPM, the tractor drawbar must be positioned at a 14” distance from the hitch point to the PTO shaft end for proper operation and minimal wear to the driveline. 1000 RPM 284 Models require 16 inch drawbar length.

If attaching the mower tongue clevis to a 3-point hitch drawbar supported by the lower lift arms, the attaching

point must be extended past the main bar to allow for turning without binding the clevis and bar. Lift arm stabilizers must be used with this type of drawbar to prevent the mower from swaying from side to side.

OPS-R- 0061_I

2.6 Power Take Off (PTO)

This mower is designed to operate at a PTO speed of 540. 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. Note: Only the 284 mower can be ordered to operate on tractors equipped with a 1000 RPM 21-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-R- 0066_A

260/272/284 01/11

Operation Section 4-6

© 2011 Alamo Group Inc.

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Alamo 260, 284, 272 manual Front End Weight, Drawbar-Pull Type Mower, Power Take Off PTO, Operation