Zoomlion RT55, Manual

Page: 42 / 50

LOAD RATINGS FOR ROUGH TERRAIN CRANE
Li
fts
w
ith
o
utrigger
beams
fully
retracted
RT55 Rough Terrain Crane 04 - 3
SET-UP
1. Crane load ratings are based on the crane being leveled and standing on a firm and
uniform supporting surface.
2. Crane load ratings on outriggers are based on all outrigger beams being fully extended /
retracted, or partial extension ratings mechanically pinned in the appropriated position, and
the tyres raised free of the supporting surface.
OPERATION
1. CRANE LOAD RATINGS MUST NOT BE EXCEEDED. NO ATTEMPT TO TIP THE
CRANE TO DETERMINE ALLOWABLE LOADS.
2. When either radius or boom length, or both, are between listed values, the smaller of the
two listed load ratings shall be used.
3. EXTRA-CAUTION ZONE – Tipping can occur with some boom/jib combinations at radii
within this area without any load on the hook.
4. The boom angles shown on the Lift Charts give an approximation of the operation radius
for a specified boom length. The boom angle, before loading, should be greater to account
for boom deflection. It may be necessary to retract the boom if maximum boom angle is
insufficient to maintain rated radius.
5. Rated Loads include the weight of hook block, slings and auxiliary lifting devices. Their
weights shall be subtracted from the listed rated load to obtain the net load that can be
lifted. Rated lifting capacities are based on correct reeving. Deductions must be made for
excessive reeving. Any reeving over the minimum is considered excessive. Deduct for
each foot of excessive wire rope before attempting to lift a load. See HOIST TACKLE
CHART for rope information.
6. All telescopic sections must be extended synchronously.