RATED CAPACITY CHARTS
DUTY NUMBERS AND COUNTERWEIGHT POSITIONS
The MAC 25 crane is fitted with a moveable counterweight which is stored on the front
of the crane during travel. The counterweight is mounted at the rear of the crane to
increase the rated capacity.
Crane lifting configuration (Duty) is designated in this Rated Capacity Manual by the
use of a three digit number. The first digit represents position of the counterweight,
the second two designate the lifting configuration being used.
Counterweight Position
Duties
No counterweight on the crane (0):
001
Front Counterweight (1):
101 - 122
Rear Counterweight (2):
201 – 212
Rear SL counterweight (3):
301 - 313
CHART RELATED INFORMATION
Pitch and Roll angles: Rated capacity values in the charts for the MAC 25
crane at 25
o
& at 40
o
articulation have been calculated using pitch and roll
values consistent with lifting on firm level ground.
Red Line on charts: Rated Capacities above the red line are based on the
machine’s hydraulic or structural competence. Rated Capacities below the red
line are based on machine stability.
RC are based on firm level ground with tyres at specified pressures. (AS1418.5:
1% max side slope (0.6
o
)).
NOTE: In determining the load that can be lifted, the weight of
hooks & other load handling devices (including the fall
block) shall be ADDED to the load being lifted.
T139154-D
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