Zoomlion RT55 User manual

LOAD CHART MANUAL FOR
RT55 ROUGH TERRAIN CRANE
Address:Quantang Indust=rial Park, 2nd Yuanda Road,
Changsha Economic and Technological Development
Zone, Hunan Province, China
Postcode: 410131
Website: www.zoomlion.com

RT55 ROUGH TERRAIN CRANE
LOAD RATINGS
Edition 1
Dec.2013

To owners, users and operators
LOAD RATINGS FOR ROUGH TERRAIN CRANE
RT55 Rough Terrain Crane I
Zoomlion Cranes appreciates your selection of the ZOOMLION Rough Terrain Crane
for your application.
No one should operate the crane unless they read and understand the information in
this manual.
When you follow the instructions in this manual, your crane can operate at MAXIMUM
EFFICIENCY.
The operator must keep this manual in the cab of the crane.
If there is anything in the manual that you do not understand, speak with us. We
(Zoomlion Cranes) are NOT responsible for damages from an operator who does not
obey the instructions in the OPERATOR’S MANUAL.
The OPERATOR’S MANUAL is an important part of the crane. If the crane becomes the
property of a different person, make sure that the manual stays in the cab of the crane.
THANK YOU!
Mobile Crane Branch Company of ZOOMLION Heavy Industry Science and Technology
Co., Ltd.
Copyright
Under the copyright laws, this manual may not be copied, photocopied, reproduced,
translated, or reduced to any electronic medium or machine readable form, in whole or
part, without the prior written consent of Zoomlion Heavy Industry Science and
Technology Co., Ltd.
Copyright © 20XX, Zoomlion Heavy Industry Science and Technology Co., Ltd.
All rights reserved.

Safety
LOAD RATINGS FOR ROUGH TERRAIN CRANE
II RT55 Rough Terrain Crane
Hazard Indicators
DANGER, WARNING, CAUTION, ATTENTION, NOTE, and IMPORTANT labels are on
signs and decals, and as you read this manual to show important instructions. In this
manual, DANGER, WARNING, and CAUTION labels are before the paragraph or item to
which they apply. ATTENTION, NOTE, and IMPORTANT follow the paragraph or item
they apply to. The markers are as follows:
Refers to a dangerous situation which, if you do not prevent, will cause death or
injury.
Refers to a possible dangerous situation which, if you do not prevent, could cause
death or injury.
Refers to a possible dangerous situation which, if you do not prevent, may cause
light or moderate injury.
Attention
Refers to a situation which, if you do not prevent, may cause property or equipment
damage.
Note
Refers to a tip or hint in the operation instructions.
Emphasizes the importance of the data in this manual.
This symbol shows a step or procedure that is not approved and can cause a dangerous
situation.
Important
Caution
Warning
Danger

RT55 Rough Terrain Crane III
To Owners, Users and Operators.......................................................................................................I
Safety...................................................................................................................................................II
1 Informational data...................................................................................................................... 01-1
1.1 Hoist Tackle Chart ............................................................................................................... 01-1
1.2 Tire Inflation Chart............................................................................................................... 01-1
1.3 Weights................................................................................................................................ 01-2
1.4 Maximum outrigger float load .............................................................................................. 01-2
1.5 General................................................................................................................................ 01-3
1.6 Definitions............................................................................................................................ 01-3
1.7 Set-up.................................................................................................................................. 01-4
1.8 Operation............................................................................................................................. 01-4
2 Lifts with outrigger beams fully extended. ............................................................................. 02-1
3 Lifts with outrigger beams at mid-position. ............................................................................ 03-1
4 Lifts with outrigger beams fully retracted ............................................................................... 04-1
5 Lifts on tires ............................................................................................................................... 05-1

RT55 Rough Terrain Crane 01 - 1
1.1 HOIST TACKLE CHART
This chart only represents the maximum permissible hoist line load per parts of line. You must
refer to the proper Lift Charts for machine rated loads.
Table 01 – 1 Line Parts
MAXIMUM PERMISSIBLE HOIST LINE LOAD
LINE PARTS 1 2 3 4 5 6 7 8 9 10
MAXIMUM
PERMISSIBLE
HOIST LINE
LOAD (KG)
5500 11000 16500 22000 27500 33000 38500 44000 49500 55000
MAXIMUM
PERMISSIBLE
HOIST LINE
LOAD (LBS)
12125 24250 36375 48500 60625 72750 84875 97000 109125 121250
Wire rope: 19NAT-15×K7-IWRC-1960Mpa（3/4″ROTATION RESISTANT 15×K
7 COMPACTED
STRAND, GRADE 1960）
Weight: 160kg/100m (1.1LBS/FT)Minimum breaking strength: 31.1T (30.61TONS)
1.2 TIRE INFLATION CHART
Table 01 – 2 Tire Inflation Chart
RECOMMENDED TIRE PRESSURE
TIRE SIZE STATIONARY CREEP
（
21/2MPH
）
TRAVEL
26.50-25-32PR 580kpa（85 PSI）580kpa（85 PSI）450kpa（65 PSI）

01 - 2 RT55 Rough Terrain Crane
1.3 WEIGHTS
Table 01 – 3 Weights
HOOK BLOCK WEIGHTS DIMENSIONS ARE FOR MAIN HOOK
AND AUXILIARY HOOKS.
Main hook weight: 650kg（1433 LBS）
Auxiliary hook weight: 120kg（265 LBS）
MACHINE EQUIPMENT
1. COUNTERWEIGHT: 5000kg（1102 LBS）。
2. OUTRIGGER SPREAD: 6.9 m（22.6 ft）from
center of outrigger float to center of outrigger
float across the longitudinal axis of the machine;
6.9 m（22.6 ft）from center of outrigger float to
center of outrigger float across the transversal
axis of the machine
3. Powered boom length 10.8 m (35.43 ft) retracted
to 34 m (111.55ft) extended
4. Crane height 3.75m (12 ft-3.5 in), length 13.1m
(43 ft), width 3.3m (10 ft-10 in), wheelbase
3.95m (8 ft-6.6 in)
1.4 MAXIMUM OUTRIGGER FLOAT LOAD
When lifting loads shown in these capacity charts, no single float load will exceed 50000 kg
(88,000 lb).

RT55 Rough Terrain Crane 01 - 3
1.5 GENERAL
1.5.1 Rated loads as shown on Lifting Charts pertain to this machine as originally
manufactured and equipped. Modifications to the machine or use of optional
equipment other than that specified can result in a reduction of capacity.
1.5.2 Construction equipment can be hazardous if improperly operated or maintained.
Operation and maintenance of this machine shall be in compliance with the
information in the Operator’s Manual supplied with this machine. If these manuals
are missing, order replacements from the manufacturer through your distributor.
1.5.3 These warnings do not constitute all of the operating conditions for the crane. The
operator and job site supervision must read the Operator’s Manual.
1.5.4 This crane and its load ratings are in accordance with ASME/ANSI B30.5.
1.6 DEFINITIONS
1.6.1. LOAD RADIUS – The horizontal distance from the axis of rotation before loading to
the center of the vertical hoist line or tackle with a load applied.
1.6.2. LOAD BOOM ANGLE – It is the angle between the boom base section and the
horizontal, after lifting the rated load at the rated radius. The boom angle before
loading should be greater to account for deflections. The loaded boom angle
combined with the boom length give only
an approximation of the operating radius.
1.6.3. WORKING AREA – Areas measured in a
circular arc about the centerline of rotation
as shown in the diagram.
1.6.4. FREELY SUSPENDED LOAD – Load
hanging free with no direct external force
applied except by the hoist rope.
1.6.5. Side load – Horizontal force applied to the lifted load either on the ground or in the
air.
1.6.6. EXTRA-CAUTION ZONE – Tipping can occur with some boom/jib combinations at
radii within this area without any load on the hook.
1.6.7. BOOM SIDE OF CRANE – The side of the crane over which the boom is
positioned when in an OVER SIDE working position.

01 - 4 RT55 Rough Terrain Crane
1.7 SET-UP
1.7.1. Crane load ratings are based on the crane being leveled and standing on a firm
and uniform supporting surface.
1.7.2. Crane load ratings on outriggers are
based on all outrigger beams being
fully extended / retracted, or in the
case of partial extension ratings
mechanically pinned in the
appropriate position, and the tires
raised free of the supporting surface.
1.7.3. Crane load ratings on tires depend on appropriate inflation pressure and the tire
conditions. Caution must be exercised when increasing air pressures in tires.
Consult Operator’s Manual for precautions.
1.7.4. Consult appropriate section of the Operator’s Manual for more exact description of
hoist line reeving.
1.7.5. The use of more parts of line than required by the load may result in having
insufficient rope to allow the hook block to reach the ground.
1.7.6. Properly maintained wire rope is essential for safe crane operation. Consult
Operator’s Manual for proper maintenance and inspection requirements.
1.7.7. When spin-resistant wire rope is used, the allowable rope loading shall be the
breaking strength divided by five (5), unless otherwise specified by the wire rope
manufacturer.
1.8 OPERATION
1.8.1. CRANE LOAD RATINGS MUST NOT BE EXCEEDED. DO NOT ATTEMPT TO TIP
THE CRANE TO DETERMINE ALLOWABLE LOADS.
1.8.2. When either radius or boom length, or both, are between listed values, the smaller
of the two listed load ratings shall be used.
1.8.3. Do not operate at longer radii than those listed on the applicable Lift Chart (cross
hatched areas shown on range diagrams) as tipping can occur without
a load on the hook.
1.8.4. The boom angles shown on the Lift Charts give an approximation of the operating
radius for a specified boom length. The boom angle, before loading, should be

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.

RT55RoughTerrainCrane 02-1
2.1 MAIN BOOM RATED LOADS
USE THIS CHART ONLY WHEN ALL OUTRIGGERS ARE FULLY EXTENDED
Rated loads on outriggers fully extended - 360°
(Rated load unit: Kg)
Working
Radius
(mm)
Boom Length (mm) Working
Radius
(mm)
10080 15440 20080 24720 29360 34000
3000 55000 27200 3000
3500 51300 27200 3500
4000 47550 27200 4000
4500 43250 27200 26300 4500
5000 39200 27200 26300 5000
5500 35750 27200 26300 5500
6000 32790 27200 25300 20000 6000
6500 30240 27200 24300 19300 6500
7000 27950 26450 23000 18650 7000
7500 25670 25000 21800 18050 15290 7500
8000 22510 23200 20700 17400 14750 8000
8830 17460 8830
9000 18510 18750 15790 13850 10560 9000
10000 15250 15530 14500 12700 10560 10000
11000 12820 13100 13300 11700 10100 11000
12000 10960 11220 11410 10800 9350 12000
13000 9510 9730 9920 9930 8650 13000
13461 9030 13461
14000 8530 8700 8720 8040 14000
16000 6720 6860 6880 7040 16000
18000 5470 5540 5550 5700 18000
18096 5460 18096
20000 4540 4550 4680 20000
22000 3790 3780 3890 22000
22733 3610 22733
24000 3160 3260 24000
26000 2680 2740 26000
27371 2470 27371
28000 2310 28000
30000 1960 30000
32000 1700 32000
32009 1700 32009

02 - 2 RT55 Rough Terrain Crane
Rated loads on outriggers fully extended - 360°
(Rated load unit: lb)
Working
Radius
(ft)
Boom Length (ft) Working
Radius
(ft)
35 51 66 81 96 112
10 121000 60200 10
12 110110 60200 12
15 93830 60200 58190 15
20 71060 59400 51370 40810 20
25 52840 49720 43450 36520 31350 25
28 38380 28
30 38250 37290 31570 27610 23280 30
35 28750 29530 27610 24200 21120 35
40 22590 23260 23830 21450 18700 40
44 19110 44
45 18860 19370 19250 16720 45
50 15610 16070 16240 15070 50
55 13140 13530 13690 13640 55
59 11560 59
60 11520 11660 12060 60
65 9890 10020 10390 65
70 8570 8670 9010 70
74 7640 74
75 7540 7850 75
80 6580 6860 80
85 5780 6000 85
89 5220 89
90 5260 90
95 4620 95
100 4060 100
105 3600 105

RT55RoughTerrainCrane 02-3
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 in the case of partial extension ratings mechanically pinned in the
appropriated position, and the tires 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 lift ratings 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 synchronically.