Alamo 00759354C User Manual

A60B/A72B   02/07

Operation Section 4-6

©2007 Alamo Group Inc. 

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.

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

II dimensions, 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.

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”

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