Yanmar SA Series - Select the Appropriate Amount of Rear Weight; Use the Optional Rear Ballast

12-9
12. TIRES, WHEELS AND WEIGHTS
SA221/324/424 Operation Manual
■ Select the Appropriate Amount of Rear
Weight
● Operation of front mounted implement such as a
loader can cause the rear wheels to lift off the
ground.
● As required, add weight to the rear end of the
tractor to make the tractor stable.
● Use of the optional rear ballast is best suited for
the loader operations.
● Make sure to remove all weights when no longer
required.
● Use the chart below to determine the maximum
load capacity of each rear tire at maximum
inflation.
For information regarding the rear weight, for details,
see "Use Liquid Weight for the Tires" on page 12-10.
■ Use the Optional Rear Ballast
Optional rear ballast for carrying weights on the 3-
point hitch is available from YOUR LOCAL YANMAR
TRACTOR DEALER.
The amount of weight needed in the rear ballast for
the proper operation of a front mounted implement
can be found on the Operation Manual.
Avoid injury!
● Always use a lower load on the tires than the
indicated maximum capacity.
● Always keep the amount of rear weight within
the limits indicated below.
Model
Maximum Load Per Rear Tire
Tire Size
Ply
Rating
Capacity
lb. (kg)
SA221
R3 26 x 12.0-12 4 810 (367)
R4 26 x 12.0-12 4 1875 (851)
SA324
R3 33 x 12.5-16.5 4 2305 (1046)
R4 12-16.5 6 4796 (2180)
SA424
R3 36 x 13.50-15 4 2596 (1180)
R4 14-17.5 4 4820 (2186)
! WARNING
Avoid injury!
● Use of the optional rear ballast is
recommended.
● The preceding action improves the stability of
the loader.
● Use weight as per the recommendation
contained in the loader Operation Manual.
IMPORTANT
● Always put a lower load on the tires than the
indicated maximum capacity.
! WARNING
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