Alamo 00759354C, A60B, A72B Tractor Horsepower, 3.4 3-Point Hitch, Front End Weight, Operation

OPERATION

OPERATION

3.3 Tractor Horsepower

The horsepower required to operate the mower depends on several operating factors including the vegetation to be cut, terrain condition, operator experience, condition of the mower and tractor, and others. For most mowing conditions, the A60B mower requires a tractor with a minimum of 30 HP and the A72B mower requires a tractor with a minimum of 35 HP. Operating the mower with a tractor that does not have adequate power may damage the tractor engine. Exceeding 75 HP may cause mower damage by overpowering the unit in heavy cutting conditions.

3.4 3-Point Hitch

The tractor 3-point hitch must be rated to lift at least 850 lbs. if attaching an A60B and 1050 lbs. if attaching an A72B mower.

A60B/72B mowers can attach to tractor’s with either a CAT I or II hitch. Refer to the tractor operator’s manual for the category of the tractor used. If the hitch does not conform to ASAE Cat I or

IIdimensions, the mower may not fit or raise properly. Consult an authorized dealer for possible modification procedures to mount nonconforming hitches.

Use the correct hitch pins for the hitch category being used. For a Cat I hitch, 7/8” lower and 3/4” upper diameter hitch pins are used and Cat II hitches require 1-1/8” lower and 1” upper diameter hitch pins.

CAT I Implement / Hitch Specification		CAT II Implement/ Hitch Specification
Width from outside to outside A-frame....	26 7/8”	Width from outside to outside A-frame....	32-3/8”
Quick Hitch width inside lug to lug	27 1/8”	Quick Hitch width inside lug to lug	33-5/8”
Height from bottom hitch pin to top pin ...	18”	Height from bottom hitch pin to top pin ...	19”
Lower pin diameter	7/8”	Lower pin diameter	1-1/18”
Upper pin diameter	3/4”	Upper pin diameter	1”
Lynch pin diameter	15/32”	Lynch pin diameter	15/32”

3.5 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

A60B/A72B 02/07 Operation Section 4-6

©2007 Alamo Group Inc.