Harrington Hoists RHN02D-20A-20D Series User manual


ELECTRIC
WIRE ROPE
HOIST and TROLLEY
RHNSERIES
2 Ton through 20 Ton Capacity
Hoist Code and Serial Number

This equipment should not be installed, operated or
maintained by any person who has not read and
understood all the contents of this manual. Failure to read
and comply with the contents of this manual can result in
serious bodily injury or death, and/or property damage.
EFFECTIVE: May 18, 2015

2
Table of Contents
Section Page Number
1.0 Important Information and Warnings…………………………………………….……………………. 4
1.1 Terms and Summary
1.2 Warning Tags and Labels
2.0 Technical Information …………………………….…………………………………………………….. 8
2.1 Specifications
2.2 Dimensions
2.3 Miscellaneous
3.0 Pre-operational Procedures……………………………………………………………………….….. 20
3.1 General Information
3.2 Handling
3.3 Mounting Location
3.4 Assembly, Adjustments and Mounting
3.5 Electrical Connections
3.6 Pendant Installation
3.7 RPU Load Monitor Device
3.8 Hoist Limit Switches and Adjustment
3.9 Pre-operational Checks and Trial Operation
4.0 Operation……………………………………………………………………………………………….. 36
4.1 Introduction
4.2 Shall’s and Shall Not’s for Operation
4.3 Hoist and Trolley Controls
5.0 Inspection……………………………………………………………………………………………….. 39
5.1 General
5.2 Inspection Classification
5.3 Frequent Inspection
5.4 Periodic Inspection
5.5 Occasionally Used Hoists and Trolleys
5.6 Inspection Records

3
Section Page Number
5.7 Inspection Methods and Criteria
6.0 Maintenance & Handling………………………………………………………………………….…… 52
6.1 Count/Hour Meter
6.2 Lubrication
6.3 Hoist Motor Brake
6.4 Trolley Motor Brake
6.5 Wire Rope
6.6 Reeving and Anchorage
6.7 Storage
6.8 Outdoor Installation
6.9 Operational Environment
7.0 Troubleshooting………………………………………………………………………………………… 65
8.0 Warranty………………………………………………………………………………………………….70
9.0 Parts List ……………………………………...………………………………………………………….71

4
1.0 Important Information and Warnings
1.1 Terms and Summary
This manual provides important information for personnel involved with the installation, operation and
maintenance of this product. Although you may be familiar with this or similar equipment, it is strongly recommended
that you read this manual before installing, operating or maintaining the product.
Danger, Warning, Caution and Notice - Throughout this manual there are steps and procedures that can present
hazardous situations. The following signal words are used to identify the degree or level of hazard seriousness.

Danger indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury, and property damage.

Warning indicates an imminently hazardous situation which, if not avoided, could result in death
or serious injury, and property damage.

Caution indicates a potentially hazardous situation which, if not avoided, may result minor or
moderate injury or property damage.

Notice is used to notify people of installation, operation, or maintenance information which is
important but not directly hazard-related.

These general instructions deal with the normal installation, operation, and maintenance situations encountered with
the equipment described herein. The instructions should not be interpreted to anticipate every possible contingency
or to anticipate the final system, crane, or configuration that uses this equipment. For systems using the equipment
covered by this manual, the supplier and owner of the system are responsible for the system’s compliance with all
applicable industry standards, and with all applicable federal, state and local regulations/codes.
This manual includes instructions and parts information for the RHN trolley hoist. Therefore, all instructions and parts
information may not apply to any one type or size of specific trolley hoist. Disregard those portions of the instructions
that do not apply.
Record your trolley hoist’s Product Code and Serial Number on the front cover of this manual for identification and
future reference to avoid referring to the wrong manual for information or instructions on installation, operation,
inspection, maintenance, or parts.
Use only Harrington authorized replacement parts in the service and maintenance of this trolley.

5

Equipment described herein is not designed for and MUST NOT be used for lifting, supporting, or transporting people,
or for lifting or supporting loads over people.
Equipment described herein should not be used in conjunction with other equipment unless necessary and/or
required safety devices applicable to the system, crane, or application are installed by the system designer, system
manufacturer, crane manufacturer, installer, or user.
Modifications to upgrade, rerate, or otherwise alter this equipment shall be authorized only by the original equipment
manufacturer.
Equipment described herein may be used in the design and manufacture of cranes or monorails. Additional
equipment or devices may be required for the crane and monorail to comply with applicable crane design and safety
standards. The crane designer, crane manufacturer, or user is responsible to furnish these additional items for
compliance. Refer to ANSI/ASME B30.17, “Safety Standard for Top-Running Single Girder Cranes”; ANSI/ASME
B30.2 “Safety Standard for Top-Running Double-Girder Cranes”; and ANSI/ASME B30.11 “Safety Standard for
Underhung Cranes and Monorails”.
Hoists, trolleys and cranes, used to handle hot molten material may require additional equipment or devices. Refer to
ANSI Z241.2, “Safety Requirements for Melting and Pouring of Metals in the Metalcasting Industry”.
Electrical equipment described herein is designed and built in compliance with Harrington's interpretation of
ANSI/NFPA 70, “National Electrical Code”. The system designer, system manufacturer, crane designer, crane
manufacturer, installer, or user is responsible to assure that the installation and associated wiring of these electrical
components is in compliance with ANSI/NFPA 70, and all applicable Federal, State and Local Codes.
Failure to read and comply with any one of the limitations noted herein can result in serious bodily injury or death,
and/or property damage.

6

HAZARDOUS VOLTAGES ARE PRESENT IN THE CONTROL BOX, OTHER ELECTRICAL COMPONENTS,
AND CONNECTIONS BETWEEN THESE COMPONENTS.
Before performing ANY mechanical or electrical maintenance on the equipment, de-energize (disconnect) the main
switch supplying power to the equipment; and lock and tag the main switch in the de-energized position. Refer to
ANSI Z244.1, “Personnel Protection – Lockout/Tagout of Energy Sources”.
Only trained and competent personnel should inspect and repair this equipment.

It is the responsibility of the owner/user to install, inspect, test, maintain, and operate a trolley hoist in accordance with
ANSI/ASME B30.16, “Safety Standard for Overhead Hoists”, OSHA Regulations and ANSI/NFPA 70, "National
Electric Code". If the trolley hoist is installed as part of a total lifting system, such as an overhead crane or monorail, it
is also the responsibility of the owner/user to comply with the applicable ANSI/ASME B30 volume that addresses that
type of equipment.
It is the responsibility of the owner/user to have all personnel that will install, inspect, test, maintain, and operate a
trolley hoist read the contents of this manual and applicable portions of ANSI/ASME B30.16, “Safety Standard for
Overhead Hoists”, OSHA Regulations and ANSI/NFPA 70, “National Electric Code”. If the trolley is installed as part of
a total lifting system, such as an overhead crane, the applicable ANSI/ASME B30 volume that addresses that type of
equipment must also be read by all personnel.
If the trolley hoist owner/user requires additional information, or if any information in the manual is not clear, contact
Harrington or the distributor of the trolley. Do not install, inspect, test, maintain, or operate this trolley hoist unless this
information is fully understood.
A regular schedule of inspection of the trolley hoist in accordance with the requirements of ANSI/ASME B30.16 should
be established and records maintained.

7
1.2 Warning Tag and Labels
The warning tag illustrated below in Figure 1-1 is supplied with each RHN hoist and trolley hoist shipped from
the factory. If the tag is not attached to the pendant cord for your hoist/trolley, order a tag from your dealer and
install it. Read and obey all warnings attached to this Hoist. Tag is not shown actual size.
front back
Figure 1-1 Warning Tag Attached to Hoist

8
2.0 Technical Information
2.1 Specifications
2.1.1 Product Code:
2.1.2 Operating Conditions and Environment
Temperature Range: +14°to +104°F (-10°to +40°C)
Humidity: 80% or less
Electrical Enclosure Rating: IP55
Brake Enclosure Rating: IP66
Supply Voltage: 208V or 230V or 460V or 575V-3ph-60Hz
Control Voltage: 110V-1ph-60Hz
Noise Rating: less than 85 dba at full speed (A scale: measured 1 meter
away from electric wire rope hoist)

9
Table 2-1 Deck Mounted Hoist Specifications
Capacity
(Ton) Product Code* Lift (ft.)
Reeving
(Parts/
reeving)
Rope
Dia.
(mm)
Lifting
Speed
(ft/min)
Dual Speed Hoist Lifting Motor
3 Phase, 60 Hz Net
Weight
(lbs)
Output
(Hp)
Hi/Low
Current Draw
(amps) - Hi/Low
208&230V 460V 575V
2 RHN02D-20A-20D-20 4/1 7 20/3.5 5.8/0.9 17.0/8.4 8.3/4.0 6.6/3.2 353
RHN02D-33A-20D-33 375
3 RHN03D-20A-20D-20 4/1 7 20/3.5 5.8/0.9 17.0/8.4 8.3/4.0 6.6/3.2 353
RHN03D-33A-20D-33 375
5 RHN05D-20B-20D-20 4/1 9 20/3.5 7.2/1.2 22.0/11.0 10.0/5.4 8.2/4.3 452
RHN05D-33B-20D-33 485
7 ½ RHN08D-20C-20D-20 4/1 12.5 20/3.5 14.8/2.1 42.0/21.0 20.0/10.0 16.0/8.0 1025
RHN08D-33C-20D-33 1102
10 RHN10D-20C-20D-20 4/1 12.5 20/3.5 14.8/2.1 42.0/21.0 20.0/10.0 16.0/8.0 1025
RHN10D-33C-20D-33 1102
15 RHN15D-20D-16D-20 4/1 20 16/2.5 24.1/4.0 67.0/27.0 32.0/13.0 25.6/10.4 2271
RHN15D-33D-16D-33 2436
20 RHN20D-20D-16D-20 4/1 20 16/2.5 24.1/4.0 67.0/27.0 32.0/13.0 25.6/10.4 2271
RHN20D-33D-16D-33 2436
*See Section 2.1.1 for place holder designation

10
Table 2-2 Ultra-Low Headroom Trolley Hoists Hoist Specifications
Capacity
(Ton) Product Code* Lift (ft.)
Reeving
(Parts/
reeving)
Rope
Dia.
(mm)
Lifting
Speed
(ft/min)
Dual Speed Hoist Lifting Motor
3 Phase, 60 Hz Net
Weight
(lbs)
Output
(Hp)
Hi/Low
Current Draw
(amps) - Hi/Low
208&230V 460V 575V
2 RHN02U-20A-20DD-20 4/1 7 20/3.5 5.8/0.9 17.0/8.4 8.3/4.0 6.6/3.2 617
RHN02U-33A-20DD-33 650
3 RHN03U-20A-20DD-20 4/1 7 20/3.5 5.8/0.9 17.0/8.4 8.3/4.0 6.6/3.2 617
RHN03U-33A-20DD-33 650
5 RHN05U-20B-20DD-20 4/1 9 20/3.5 7.2/1.2 22.0/11.0 10.0/5.4 8.2/4.3 767
RHN05U-33B-20DD-33 831
7 ½ RHN08U-20C-20DD-20 4/1 12.5 20/3.5 14.8/2.1 42.0/21.0 20.0/10.0 16.0/8.0 1766
RHN08U-33C-20DD-33 1872
10 RHN10U-20C-20DD-20 4/1 12.5 20/3.5 14.8/2.1 42.0/21.0 20.0/10.0 16.0/8.0 1766
RHN10U-33C-20DD-33 1872
15 RHN15U-28C-12DD-28 4/1 14 12/2.0 14.8/2.1 42.0/21.0 20.0/10.0 16.0/8.0 3086
RHN15U-46C-12DD-46 3439
*See Section 2.1.1 for place holder designation.
Table 2-3 Ultra-Low Headroom Trolley Hoists Trolley Specifications
Capacity
(Tons) Product Code
Standard
Flange Range
B*
(in)
Dual Speed Traversing Motor
80 and 20 ft/min
Output
(Hp)
Hi/Low
Current Draw
(amps) -Hi/Low
208V 230V 460V 575V
2
RHN02U-20A-20DD-

3.25-12 0.59/0.15 3.0/2.3 2.6/2.0 1.3/1.0 1.0/0.8
RHN02U-33A-20DD-
3
RHN03U-20A-20DD-

3.25-12 0.59/0.15 3.0/2.3 2.6/2.0 1.3/1.0 1.0/0.8
RHN03U-33A-20DD-
5
RHN05U-20B-20DD-

3.63-12 0.59/0.15 3.0/2.3 2.6/2.0 1.3/1.0 1.0/0.8
RHN05U-33B-20DD-
7 ½
RHN08U-20C-20DD-

4.63-12 0.89/0.21 3.7/2.8 3.2/2.4 1.6/1.2 1.3/1.0
RHN08U-33C-20DD-

10
RHN10U-20C-20DD-

4.63-12 0.89/0.21 3.7/2.8 3.2/2.4 1.6/1.2 1.3/1.0
RHN10U-33C-20DD-

15
RHN15U-28D-12DD-

8.75-12 2.01/0.48 6.9/3.2 6.0/2.8 3.0/1.4 2.4/1.1
RHN15U-46D-12DD-

*Optional wider flange ranges available up to 19.7 inches. Consult factory.

11
2.2 Dimensions
Figure 2-1 2-10 ton Deck Mounted Hoist
Dimensions (See Table 2-4)Figure 2-2 15-20 ton Deck Mounted Hoist Dimensions (See Table 2-5)
Table 2-4 Deck Mounted Hoist Dimensions (2-10 ton)**
Capacity
(Tons) Product Code* Min. Headroom
C
(in)
e1
(in) e2 (in) e3 (in) e4 (in) e5 (in) e6 (in) e7 (in) e9 (in) e10 (in) e11 (in) e13 (in) e14 (in) e15 (in) e16 (in) eA (in)
2 RHN02D-20A-20D-22.6 40.9 29.6 6.3 4.6 9.0 4.8 13.9 21.3 11.5 4.9 7.2 6.3 11.0 13.3
22.2
RHN02D-33A-20D-52.5 6.2 7.6 22.1 33.8
3 RHN03D-20A-20D-22.6 40.9 29.6 6.3 4.6 9.0 4.8 13.9 21.3 11.5 4.9 7.2 6.3 11.0 13.3
22.2
RHN03D-33A-20D-52.5 6.2 7.6 22.1 33.8
5 RHN05D-20B-20D-25.6 41.3 31.2 6.4 4.3 11.2 5.9 14.3 22.0 13.8 6.6 8.8 7.2 12.9 13.5
22.2
RHN05D-33B-20D-52.9 7.2 22.2 33.8
7 ½ RHN08D-20C-20D-32.5 48.0 39.3 9.5 4.6 14.1 7.5 17.2 28.6 18.2 8.6 11.7 9.4 16.9 12.6
24.6
RHN08D-33C-20D-60.4 7.8 21.8 37.0
10 RHN10D-20C-20D-32.5 48.0 39.3 9.5 4.6 14.1 7.5 17.2 28.6 18.2 8.6 11.7 9.4 16.9 12.6
24.6
RHN10D-33C-20D-60.4 7.8 21.8 37.0
Table 2-5 Deck Mounted Hoist Dimensions (15 & 20 ton)**
Capacity
(Tons) Product Code* Min. Headroom
C
(in)
e1
(in) e2 (in) e3 (in) e4 (in) e6 (in) e7 (in) e10 (in) e16 (in) eA (in)
15 RHN15D-20D-16D-37.0 54.4 43.7 13.4 4.6 10.9 19.5 29.7 15.7 29.7
RHN15D-33D-16D-66.6 7.6 24.9 41.9
20 RHN20D-20D-16D-37.0 54.4 43.7 13.4 4.6 10.9 19.5 29.7 15.7 29.7
RHN20D-33D-16D-66.6 7.6 24.9 41.9
Notes:
*See Section 2.1.1 for place holder designation
** See Table 2-10 and Table 2-11 for attachment point dimensions

12
Table 2-6 Ultra-Low Headroom Trolley Hoist Dimensions
Capacity
(Tons) Product Code
*1
e1
(in) e4 (in) e10 (in) d1 (in) d2 (in) d3 (in) f1 (in) f2 (in) f3 (in) f5 (in) f6 (in) u1 (in) u2 (in) u3 (in) u4 (in) u5 (in) u6 (in)
2 RHN02U-20A-20DD-40.3 4.6 11.5 28.6 18.0 3.7 13.9 8.9 6.5 6.1 11.9 30.0 22.4 9.1 5.1 5.9 8.7
RHN02U-33A-20DD-51.9 7.6 10.7 41.6 34.1 9.0 17.4
3 RHN03U-20A-20DD-40.3 4.6 11.5 28.6 18.0 3.7 13.9 8.9 6.5 6.1 11.9 30.0 22.4 9.1 5.1 5.9 8.7
RHN03U-33A-20DD-51.9 7.6 10.7 41.6 34.1 9.0 17.4
5 RHN05U-20B-20DD-41.2 4.3 13.8 30.8 18.2 3.7 13.5 9.1 7.7 6.5 12.1 29.8 22.4 9.9 5.6 5.6 8.3
RHN05U-33B-20DD-54.6 7.2 8.1 8.1 10.9 47.3 40.0 15.8 17.0
7 ½ RHN08D-20C-20DD-47.2 4.6 18.2 37.0 22.9 4.5 16.1 11.4 10.7 9.8 15.7 33.7 24.6 12.6 6.7 6.7 7.4
RHN08U-33C-20DD-59.6 7.8 15.0 46.1 37.0 12.6 16.6
10 RHN10U-20C-20DD-47.2 4.6 18.2 37.0 22.9 4.5 16.1 11.4 10.7 9.8 15.7 33.7 24.6 12.6 6.7 6.7 7.4
RHN10U-33C-20DD-59.6 7.8 15.0 46.1 37.0 12.6 16.6
15* RHN15U-28D-12DD-65.6†4.6 23.0 44.4 25.2 6.6 24.5 11.8 10.0 10.0
16.7 49.4† 40.7 15.9 8.7 8.7 20.3
RHN15U-46D-12DD-79.7
†
7.7 15.2 69.5
†
60.8 23.7 29.4
Notes:
* Refer to Table 2-7 for motor dimensions m0, m1, and m2. Motor dimension m0 may extend past the counterweight depending on the
hoist model and flange width B.
*1 - See Section 2.1.1 for place holder designation
*3 - Refer to Table 2-8 for flange range dimension B (Trolleys are suitable for use on S or W shaped beams)
*4 - Refer to Table 2-8 for headroom dimension C
*5/*6 – Observe clearance dimensions
† - For the 15t trolley hoist model, this measurement is to the end of the trolley frame because it extends past the drum cover shown in the
figure.

13
Table 2-7 Ultra-Low Headroom Trolley Motor
Dimensions
Capacity
(Tons)
Product Code*
m0
(in)
m1
(in)
m2
(in)
2
RHN02U-20A-20DD-
RHN02U-33A-20DD-
20.6 7.4 1.3
3
RHN03U-20A-20DD-
RHN03U-33A-20DD-
20.6 7.4 1.3
5
RHN05U-20B-20DD-

RHN05U-33B-20DD-
20.6 7.4 1.3
7 ½
RHN08U-20C-20DD-

RHN08U-33C-20DD-

22.4 9.5 0.8
10
RHN10U-20C-20DD-

RHN10U-33C-20DD-
22.4 9.5 0.8
15
RHN15U-28D-12DD-

RHN15U-46D-12DD-
26.5 10.1 1.3
*See Section 2.1.1 for place holder designation
Table 2-8 Ultra-Low Headroom Trolley Hoist
Headroom Dimensions
Capacity
(Tons) Flange Range, B
(in) Headroom, C* (in)
Headroom, C
for 6 inch
Flange
(in)
2
3
3.25-4.69 22.0
21.74.69-6.69 23.4-(0.29*T)
6.69-12 17.6+(0.58*T)
5
3.625-4.69 26.2
26.04.69-6.69 26.6-(0.10*T)
6.69-12 27.5-(0.23*T)
7 ½
10
4.625-6.69 33.1-(0.29*T) 31.4
6.69-12 33.4-(0.35*T)
15 8.75-12 40.8-(0.31*T) 38.0**
*T in formulas is the exact beam flange width in inches.
**Headroom value for 9 inch flange.

14
2.3 Miscellaneous
Table 2-9 Hook Dimension*
Units = inch
Capacity
(Tons) Product Code** a b c d e f g h
2 RHN02D-20A-20D-2.2 1.8 1.9 1.5 2.2 2.5 1.6 5.8
RHN02D-33A-20D-
3 RHN03D-20A-20D-2.2 1.8 1.9 1.5 2.2 2.5 1.6 5.8
RHN03D-33A-20D-
5 RHN05D-20B-20D-2.6 2.1 2.3 1.8 2.5 2.8 1.7 6.6
RHN05D-33B-20D-
7 ½ RHN08D-20C-20D-3.1 2.5 2.6 2.1 2.8 3.1 1.9 7.7
RHN08D-33C-20D-
10 RHN10D-20C-20D-3.1 2.5 2.6 2.1 2.8 3.1 1.9 7.7
RHN10D-33C-20D-
15
RHN15U-28D-12DD-3.9 3.1 3.3 2.6 3.5 4.0 2.4 10.1
RHN15U-46D-12DD-
RHN15D-20D-16D-4.9 3.9 4.2 3.3 4.4 5.0 3.2 12.0
RHN15D-33D-16D-
20 RHN20D-20D-16D-4.9 3.9 4.2 3.3 4.4 5.0 3.2 12.0
RHN20D-33D-16D-
*Refer to Section 5.6for inspection dimensions and limits.
**Product codes represent deck/base mounted hoists (except RHN15U), but hook dimensions also apply to ultra-low
trolley hoists. See Section 2.1.1 for place holder designation

15
Table 2-10 Deck Mounted Hoist Attachment Point Dimensions (2-10 ton)
Capacity
(Tons) Product Code* e1 (in) e12 (in) Deck/Base Mounted
2
RHN02D-20A-20D-40.9 24.2
RHN02D-33A-20D-52.5 35.8
3
RHN03D-20A-20D-40.9 24.2
RHN03D-33A-20D-52.5 35.8
5
RHN05D-20B-20D-41.3 24.2
RHN05D-33B-20D-52.9 35.8
7 1/2
RHN08D-20C-20D-48.0 26.8
RHN08D-33C-20D-60.4 39.2
10
RHN10D-20C-20D-48.0 26.8
RHN10D-33C-20D-60.4 39.2
Notes:
*See Section 2.1.1 for place holder designation
*5 – Lock washer

16
Table 2-11 Deck Mounted Hoist Attachment Point Dimensions (15 & 20 ton)
Capacity
(Tons) Product Code* e1 (in) e2 (in) e12 (in) Deck/Base Mounted
15
RHN15D-20D-16D-54.4
43.7
33.7
RHN15D-33D-16D-66.6 45.9
20
RHN20D-20D-16D-54.4
43.7
33.7
RHN20D-33D-16D-66.6 45.9
Notes:
*See Section 2.1.1 for place holder designation
*5 – Lock washer (Schnorr)

17
Table 2-12 Reaction Forces at Rated Load, Deck Mounted
Capacity
(Tons) Product Code F1 (lbs) F2 (lbs) F3 (lbs) F4 (lbs) Q1 (lbs) Q2 (lbs) Q3 (lbs) Q4 (lbs)
Moment*,
MT
(ft-lbs)
2
RHN02D-20A-20D-

1817
1902
654
1292
295
169
393
393
232*
RHN02D-33A-20D-

1950
2149
582
1122
328
147
393
393
3
RHN03D-20A-20D-

2700
3043
1038
2067
472
270
629
629
372*
RHN03D-33A-20D-
2906
3439
916
1795
524
235
629
629
5
RHN05D-20B-20D-

4171
4683
1618
3151
736
415
984
984
770*
RHN05D-33B-20D-

4480
5272
1435
2744
814
362
984
984
7 ½
RHN08D-20C-20D-

6989
5019
3625
5051
978
741
1475
1475
1514*
RHN08D-33C-20D-

7758
6054
3112
4278
1129
627
1475
1475
10
RHN10D-20C-20D-

9041
6692
4763
6735
1304
988
1967
1967
2019*
RHN10D-33C-20D-

10042
8072
4076
5703
1506
836
1967
1967
15
RHN15D-20D-16D-

9297
14086
5835
13988
1894
1684
3147
3147
**
RHN15D-33D-16D-

10384
16989
4931
12154
2227
1445
3147
3147
20
RHN20D-20D-16D-

12088
16707
7449
17186
2367
2105
3934
3934
**
RHN20D-33D-16D-

13494
20243
6316
14899
2784
1807
3934
3934
See Section 2.1.1 for place holder designation
Figure 2-5 Deck Mounted Hoist, 2-10 Ton
Reaction Forces (See Table 2-12)
Figure 2-6 Deck Mounted Hoist, 15-20 Ton
Reaction Forces (See Table 2-12)
*For 2-10t capacities, the customer’s substructure must account for
the moment MT (torque) from the rope drum. Therefore it must be
torsion resistant and level, (max permissible offset, Y = .0787in.)
**For 15-20t capacities, the design structure accounts for the
moment, and the forces are diverted to the fixation points.

18
Table 2-13 Wheel Pair Reaction Forces at Rated Load,
Ultra-Low Headroom Monorail
Trolley
Capacity
(Tons) Product Code* R1 (lbs) R2 (lbs)
2 RHN02U-20A-20DD-2985 2939
RHN02U-33A-20DD-3632 2411
3 RHN03U-20A-20DD-4292 4285
RHN03U-33A-20DD-5253 3487
5 RHN05U-20B-20DD-6629 7288
RHN05U-33B-20DD-7167 6675
7 1/2 RHN08D-20C-20DD-9102 12320
RHN08U-33C-20DD-12011 9860
10 RHN10U-20C-20DD-11783 16192
RHN10U-33C-20DD-15641 12898
15 RHN15U-28D-12DD-22045 17881
RHN15U-46D-12DD-22226 18478
20 N/A
N/A
Notes:
*See Section 2.1.1 for place holder designation

19
Table 2-14 Trolley Wheel Dimensions
Capacity
(Tons) Product Code *5
Wheel
Dia.
∅
D
(in)
w1
(in) w2 (in) w3 (in) w4 (in) w5 (in) w6 (in) w7 (in) w8 (in) w9 (in)
2*
U
(ft)
Maximum
Flange
Thickness
t
(in)
2
RHN02U-20A-20DD-

3.1 1.6 4.1 1.2 1.1 0.5
(0.6)** 0.2 2.1 2.0 2.5
37.4*
0.96
RHN02U-33A-20DD-

56.8*
3
RHN03U-20A-20DD-

3.1 1.6 4.1 1.2 1.1 0.5
(0.6)** 0.2 2.1 2.0 2.5
37.4*
0.96
RHN03U-33A-20DD-

56.8*
5
RHN05U-20B-20DD-

3.9 1.6 5.1 1.5 1.2 0.7
(0.9)** 0.2 2.1 2.0 2.5
37.4*
1.04
RHN05U-33B-20DD-

56.8*
7 1/2
RHN08D-20C-20DD-

5.5 1.5 6.9 N/A 1.8 0.9
(1.3)** 0.5 2.1 2.5 2.5
41.0*
1.46
RHN08U-33C-20DD-

61.7*
10
RHN10U-20C-20DD-

5.5 1.5 6.9 N/A 1.8 0.9
(1.3)** 0.5 2.1 2.5 2.5
41.0*
1.46
RHN10U-33C-20DD-

61.7*
15
RHN15U-28D-12DD-

7.9 1.7 10.5 N/A 1.8 0.9
(1.3)** 0.5 2.1 2.5 2.5
N/A
1.81
RHN15U-46D-12DD-

N/A
Notes :
* Smaller bend radius upon request
** – ( ) with sloping flange
*R – See page 18 for reaction forces R1 and R2
*2 – only up to B
≤
7.9 inches
*4 – Observe clearance dimensions
*5 – See Section 2.1.1 for place holder designation

20
3.0 Pre-operational Procedures
3.1 General Information
3.1.1 When the RHN trolley hoist or deck mounted hoist is incorporated into lifting systems utilizing other
equipment, follow and complete all pre-operational procedures and instructions provided with the
equipment. Special wiring considerations must also be taken to complete the integration of the
RHN trolley hoist or deck mounted hoist into the system.
3.1.2 The RHN hoist is delivered pre-assembled on a pallet with a wooden frame. The frame is wrapped in
plastic for additional protection. (see Figure 3-1). During shipment and storage prior to installation, the
trolley hoist should be kept between –4°and +140°F (-20°and +60°C) and the relative humidity must
not exceed 80%. The standard packaging is not watertight and rainproof.
Figure 3-1 Packaged as delivered
3.1.3 The RHN trolley hoist or deck mounted hoist is shipped pre-lubricated and the gear box(s) are filled
with the correct amount and type of oil. Follow the lubrication requirements in Section 6.1 after the
trolley hoist is placed into service.
3.2 Handling
3.2.1 Transportation –When moving the hoist or trolley hoist prior to installation, do not remove hoist from
crate. Always move hoist/trolley hoist utilizing a fork lift, pallet jack or hoist/crane system. Do NOT stack
or place anything on top of the trolley hoist or crate. Avoid swinging and unbalanced conditions.
3.2.2 Lift points – When a pallet/crate is not practical, use of RHN lifting location is acceptable. The RHN
deck mounted hoist is equipped with lifting lugs to facilitate lifting, while the RHN trolley hoist is
equipped with openings in the vertical tubes to accept hooks or slings (seeFigures 3-2 and 3-3).While
lifting do NOT support the deck mount hoist or trolley hoist any other way.