Tipping Load
The tipping load is the amount
of weight that, when applied to
the bucket center of gravity,
causes the machine to begin tip-
ping forward.
The tipping load is calculated
with the machine still and on
level ground, equipped with a
standard dirt bucket that is
raised to the point in the lift arm
path where the load is posi-
tioned furthest from the
machine.
Rated Operating Capacity
The rated operating capacity
(ROC) is a percentage of the tip-
ping load. The ROC is equal to
35% of the tipping load for tradi-
tional track loaders, or 50% of
the tipping load for wheeled skid
steer loaders. ASV publishes
both the 35% and the 50% rat-
ing for reference and compari-
son.
The ROC applies only to the
bucket attachment. Pallet forks
or other attachments often move
the center of gravity further
away from the machine reducing
the ROC.
Do not exceed the rated operat-
ing capacity for your machine.
Doing so could result in serious
injury to the operator and or
damage to the machine. The
operating capacity ratings for the
PT-70/80 are located on page
63.
Note: SAE J818 standards
define operating capacity ratings
for rubber tired skid steer load-
ers (50% tipping load) and
tracked loaders (35% tipping
load). There are no standards
defining the operating capacity
of machines equipped with sus-
pended undercarriages or rub-
ber tracks.
Gross Vehicle Weight
The G.V.W. of the PT-70 and 80
machines should never exceed
11,500Lbs. for the PT-70 and
12,500 lbs. for the PT-80 during
operation. This weight excludes
an operator, but does include
any accessories, attachments or
material being moved.
Operating the machine in excess
of the the G.V.W. will void the
warranty.
SAFETY
Tipping Load/Operating Capacity/GVW
9
Load
C of G
