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Zoomlion RT55 User Manual

Zoomlion RT55
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RT55 Rough Terrain Crane 01 - 5
greater to account for boom deflection. It may be necessary to retract the boom if
maximum boom angle is insufficient to maintain rated radius.
1.8.5. All telescopic sections must be extended synchronically.
1.8.6. 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.
1.8.7. When lifting over the jib, the weight of any hood
block, slings, and auxiliary lifting devices at the
boom head must be added to the load.
1.8.8. Rated lifting capacities are based on correct reeving. Deductions must be made for
excessive reeving. Any reeving over the minimum required, (see Hoist Tackle
Chart), is considered excessive and must be accounted for. Deduct for each meter
of excessive wire rope before attempting to lift a load.
1.8.9. When jibs are erected but unused, add three (3) times the weight of jib, any hook
block, slings, and auxiliary lifting devices at the jib head to the load (jib weight: 952
kg (2099 lbs)).
1.8.10. Rated loads do not exceed 85% on outriggers or 75% on tires, of the tipping load
as determined by ASME/ANSI B30.5.
1.8.11. Rated loads are based on freely suspended loads. No attempt shall be made to
drag a load horizontally on the ground in any direction.
1.8.12. The user shall operate at reduced ratings to allow for adverse job conditions, such
as: soft or uneven ground, out of level conditions, high winds, side loads,
pendulum action, jerking or sudden stopping off loads, hazardous conditions,
experience of personnel, two-machine lifts, traveling with loads, electric wires, etc,
(side pull on boom or jib is hazardous). If wind speed is higher than the maximum
permissible value (45 ft/s (13.8 m/s), grade 6) or it is fulminous during crane
operation, stop working and completely retract the boom and place it on the boom
support for traveling.
1.8.13. Load ratings are dependent upon the crane being maintained according to
manufacturer’s specifications.
1.8.14. It is recommended that load handling devices, including hooks, and hook blocks,
be kept away from boom head at all times.

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Zoomlion RT55 Specifications

General IconGeneral
BrandZoomlion
ModelRT55
CategoryConstruction Equipment
LanguageEnglish

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