Lifting Capacity - Kubota u15-3 Workshop Manual

2. Lifting capacity

Lifting posture
Maximum lifting capacity
(standard arm)
Lifting capacity
The machine can lift the loads listed above when the hydraulic pressure is as specified. But the actual mea-
surements are based on "n = 1", which means some fluctuations are expected.
Measuring conditions:
(1) Hydraulic oil temperature: 50 ± 5 °C, riding operator (about 60 kg), engine at maximum rpm.
(2) The boom is inched until the other end of the machine comes off the ground or the boom circuit gets
relieved. Then the loads are measured.
Note:The loads also vary depending on the ground surface condition, dozer's ground-contact status,
operator's weight, remaining fuel and other factors.
(3) The boom swing position is set at the center.
(The machine may turn over if it is set off the center.)
*The above figures show the machine that is about to life a load.
In the above table, (T) means that the machine may turn over if the load is heavier. And (R) means that the
boom circuit gets relieved if the load is heavier.
Dozer Unit
Crawler extended
(kgf)
Up kgf
Down kgf
Up kgf
Down kgf
Up kgf
Down kgf
Up kgf
Down kgf
I-15
U15-3
crawler retracted
60
215 (T) 215 (T)
280 (R) 280 (R)
100 (T) 185 (T)
135 (T) 195 (T)
475 (R) 475 (R)
475 (R) 475 (R)
275 (T) 475 (R)
315 (T) 475 (R)
WSM U15-3
Remarks