Summary of Contents for Harrington Hoists RHN02D-20A-20D Series
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EFFECTIVE: May 18, 2015 ELECTRIC WIRE ROPE HOIST and TROLLEY RHN SERIES 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.
Table of Contents Section Page Number Important Information and Warnings…………………………………………….……………………. 4 Terms and Summary Warning Tags and Labels Technical Information …………………………….…………………………………………………….. 8 Specifications Dimensions Miscellaneous Pre-operational Procedures……………………………………………………………………….….. 20 General Information Handling Mounting Location Assembly, Adjustments and Mounting Electrical Connections Pendant Installation RPU Load Monitor Device Hoist Limit Switches and Adjustment Pre-operational Checks and Trial Operation...
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Section Page Number Inspection Methods and Criteria Maintenance & Handling………………………………………………………………………….…… 52 Count/Hour Meter Lubrication Hoist Motor Brake Trolley Motor Brake Wire Rope Reeving and Anchorage Storage Outdoor Installation Operational Environment Troubleshooting………………………………………………………………………………………… 65 Warranty…………………………………………………………………………………………………. 70 Parts List ……………………………………...………………………………………………………….71...
Important Information and Warnings 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.
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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.
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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 –...
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.
Technical Information 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)
Pre-operational Procedures 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.
Figure 3-2 Lift Point for Deck Mount Figure 3-3 Lift Point for Trolley Hoist Mounting Location 3.3.1 Prior to mounting the RHN deck mounted hoist, ensure that the substructure is adequate and capable of withstanding the forces generated by the hoist and the load. Therefore, the substructure must be torsion resistant and level (See Table 2-12 for more details).
Assembly, Adjustments and Mounting When installing the trolley hoist on a beam, ALWAYS raise the hoist into position with the trolley assembled together and securely attached to a pallet. Raise the trolley hoist with a forklift, lifting platform, or other similar means. NEVER use slings to raise and install the trolley hoist onto the beam (see Figure 3-4).
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b. With the nuts (2) loosened enough to allow the trolley frame to move, slide the trolley motor side of the hoist outward or inward to meet the desired flange width. Tighten nuts (2) with a torque wrench, to 155 ft lbs (210 Nm). (See Figure 3-6 and Figure 3-11.) 7) Installing the Drive Shaft a.
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Figure 3-5 Lift Point for Trolley Hoist Figure 3-4 Lift Point for Deck Mount Figure 3-6 Trolley Hoist Clearances 2 Ton – 10 Ton Figure 3-7 Trolley Hoist Clearances Table 3-1 Trolley Clearances and Wheel Diameters Wheel Diameter Hoist RHN02 3 1/8 B+2 5/8 B+67...
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Figure 3-8 Figure 3-9 Table 3-2 Drive Shaft Length and Positions for Fig 3-8, 3-9 and 3-11 Drive Shaft Beam Flange Width Hoist Shaft Length Snap Ring in. (mm) “L” (mm) Position “S” 3.25-5.71 (82-145) 15.35 (390) 5.75-7.68 (146-195) 7.72-9.84 (196-250) RHN02 19.49 (495) 9.88-12.05 (251-306)
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Table 3-3 L3 and L4 Dimensions from Fig 3-8 and 3-9 Hoist L3+/- 2 in. (mm) L4+/-2 in. (mm) RHN02, RHN03, 3.8 (96.4) 1.82 (46.4) RHN05 RHN08, RHN10 4.9 (124.6) 1.82 (46.4) RHN15 Figure 3-11 Figure 3-11 Trolley Hoist Clearances 15 Ton...
Electrical Connections 3.5.1 Ensure that the voltage of the electric power supply is proper for the trolley hoist. 3.5.2 Do NOT apply electronic soft-start control or voltage varying controls to the RHN lifting or traversing motors. Use of such devices may cause the motor brake and other electrical components to malfunction.
Pendant Installation 1) Refer to Figure 3-14, Figure 3-15 and the wiring diagram and the interconnection diagram provided with the Hoist. 2) Remove Control Cover. 3) Loosen the cable fitting located on the lower side of the electrical enclosure and insert the Pendant Cable.
RPU Load Monitor Device The RHN hoist is equipped with the RPU Load Monitor Device. The RPU version (SLE21 or SLE22) is located on the front cover of the RPU unit. The main function of this device is to evaluate the load conditions of the hoist (overload protection, temperature monitoring of the hoist and trolley motors, and displaying the operating hours of the hoist.
Figure 3-16 3.8 Hoist Limit Switches and Adjustment The RHN wire rope hoist is equipped with a geared limit switch in the hoist control panel box. The limit switch is equipped with four switches, all of which are utilized for standard hoist functions. The four limit switch positions are as follows: S1 (Upper Safety Limit), S2 (Lower Limit), S3 (Upper Limit), and S4 (Speed Transition Limit).
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S4 ↓ ↓ location and the switch on the geared limit is no long activated. The hoist high speed function is now enabled and will function if high speed if desired by the operator. S2 ↓ (Lower Geared Limit): When the S2 ↓ switch position is activated, hook travel is disabled in the down direction.
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3) The upper geared limit switch S3 ↑ should activate before the BLS ↑ limit switch. If this is not the case, reset the S3 ↑ limit switch according to Section 3.8.7 4) Observe that the distance between the top of the hook block and the next obstacle is greater than 3.5”.
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Turning to the right: switching point is moved “upwards”. 4) Adjusting the gear limit switch All the cam discs can be moved together with the aid of the black setscrew (SO), Figure 3-21. The settings of the individual contacts relative to one another remain unchanged. The gear ratio inside the limit switch is very high and in some instances it might require many revolutions of the set screws to adjust the proper position.
Lower bottom hook block to desired hook position, if necessary turn setscrew (S2) to the left before hand. Turn setscrew (S2) to the right until contact S2 switched audibly Check disconnect point Figure 3-21 3.8.8 Servicing limit switch ...
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3.9.3 Confirm proper operation: Before operating read and become familiar with Section 4 – Operation. Before operating ensure that the hoist (and trolley) meets the Inspection, Testing and Maintenance requirements of ANSI/ASME B30.16. Before operating ensure that nothing will interfere with the full range of the hoist’s (and trolley’s) operation.
Operation Introduction DO NOT WALK UNDER A SUSPENDED LOAD HOIST OPERATORS SHALL BE REQUIRED TO READ THE OPERATION SECTION OF THIS MANUAL; THE WARNINGS CONTAINED IN THIS MANUAL, INSTRUCTION AND WARNING LABELS ON THE HOIST OR LIFTING SYSTEM, AND THE OPERATION SECTIONS OF ANSI/ASME B30.16 and ANSI/ASME B30.10. THE OPERATOR SHALL ALSO BE REQUIRED TO BE FAMILIAR WITH THE HOIST AND HOIST CONTROLS BEFORE BEING AUTHORIZED TO OPERATE THE HOIST OR LIFTING SYSTEM.
The operation of an overhead hoist involves more than activating the hoist’s controls. Per the ANSI/ASME B30 standards, the use of an overhead hoist is subject to certain hazards that cannot be mitigated by engineered features, but only by the exercise of intelligence, care, common sense, and experience in anticipating the effects and results of activating the hoist’s controls.
Improper operation of a hoist can create a potentially hazardous situation which, if not avoided, could result in minor or moderate injury, or property damage. To avoid such a potentially hazardous situation, THE OPERATOR SHALL: • Maintain a firm footing or be otherwise secured •...
Inspection General 5.1.1 The inspection procedure herein is based on ANSI/ASME B30.16. The following definitions are from ANSI/ASME B30.16 and pertain to the inspection procedure below. Designated Person – a person selected or assigned by the employer or employer’s representative as being competent to perform the specific duties.
5.2.4 PERIODIC Inspection – visual inspection by a designated person with intervals per the following criteria: Table 5-2 Periodic Inspection Intervals Service Hoist and Trolley Interval Rope Inspection Interval Normal Yearly Service 1) At Least monthly (per OSHA), AND Heavy 2) Determined by a qualified person and based Semiannually Service...
Periodic Inspection 5.4.1 Inspections should be made on a PERIODIC basis in accordance with Table 5-4, “Periodic Inspection.” A designated person shall make evaluation and resolution of the results of PERIODIC Inspections such that the hoist is maintained in safe working condition. 5.4.2 For inspections where load suspension parts of the hoist/trolley are disassembled, a load test per ANSI/ASME B30.16 must be performed on the hoist/trolley after it is re-assembled and prior to its return to service.
Inspection Records 5.6.1 Dated inspection reports and records should be maintained at time intervals corresponding to those that apply for the hoist’s PERIODIC interval per Section 5.2.4. These records should be stored where they are available to personnel involved with the inspection, maintenance, or operation of the hoist/trolley. 5.6.2 A long-range rope inspection program should be established and should include records of examination of ropes removed from service so a relationship can be established between visual observation and actual...
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Table 5-5 Hoist (and Trolley) Inspection Methods and Criteria (continued) Item Method Criteria Action Hook Block – Visual, Function Sheave(s) should be free of significant wear. Clean/lubricate, or Sheave(s) and Sheave surfaces should be free of nicks, gouges, replace as required. Shaft dirt and grime.
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Table 5-5 Hoist (and Trolley) Inspection Methods and Criteria (continued) Item Method Criteria Action The full length of the Wire Rope must be inspected for rope diameter, broken strands or wires, and condition. The rope must be free of load for testing to detect any broken wires when bending the rope by hand (especially by radius of rope sheeve).
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Table 5-5 Hoist (and Trolley) Inspection Methods and Criteria (continued) Item Method Criteria Action Run the hoist into the highest and lowest Wire Rope - Visual Replace as hook positions without load. Twisting required. If any twisting is detected , untwist the rope immediately.
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Table 5-5 Hoist (and Trolley) Inspection Methods and Criteria (continued) Item Method Criteria Action Pendant - Visual Pendant housing should be free of cracks and Replace Housing mating surfaces of parts should seal without gaps. Pendant - Wiring Visual Wire connections to switches in pendant should Tighten or repair not be loose or damaged.
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Table 5-7 Wire Rope Wear Dimensions Maximum Allowable Number of Broken Wires Rope Diameter For 6xDia. Length For 30xDia. Length Hoist Capacity Rope (tons) Diameter Standard Discard Length Length Broken Broken (mm) in. (mm) in. (mm) (mm) (mm) (in) Wires Wires (D/U) RHN02...
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Table 5-8 - Hoist Motor Brake Screw Hoist Capacity Code Motor Type max. Torque in. (mm) in. (mm) ft-lbs (Nm) RHN02(D/U) Dual speed .031 (0.8) .98 (25) 6.6 (9) RHN03(D/U) Dual speed .031 (0.8) .98 (25) 6.6 (9) RHN05(D/U) Dual speed .035 (0.9) .98 (25) 6.6 (9)
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Table 5-9 Rope Sheave Dimensions Diameter t min h max h new Part Number (mm) in. (mm) in. (mm) in. (mm) RHN0032 0.16 (4) 0.55 (14) 0.47 (12) RHN0118 0.16 (4) 0.75 (19) 0.65 (16.5) RHN0191 0.22 (5.5) 0.94 (24) 0.83 (21) RHN0327 0.22 (5.5)
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Table 5-10 Wheel Dimensions Nominal value Limit for wear Hoist Capacity Fig. Code in. (mm) in. (mm) in. (mm) in. (mm) RHN02 3.15 (80) 1.08 (27.5) 2.99 (76) 1.16 (29.5) RHN03 RHN05 3.94 (100) 1.30 (33) 3.74 (95) 1.38 (35) 1.75 (44.5) 1.85 (47) RHN08...
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Table 5-11- Travel Motor Brake Hoist Screw Motor Speed Capacity Motor Type min. max. Torque (fpm) in. (mm) Code in. (mm) in. (mm) ft-lbs (Nm) RHN02U Dual speed 80/20 .008 (0.2) .079 (2.0) .22 (5.7) 2.2 (3) RHN03U Dual speed 80/20 .008 (0.2) .079 (2.0)
Maintenance and Handling Hour Meter The RHN Hoist is equipped with a Counter, located on the face of the RPU Load Monitor Device. This counter registers and displays the operating hours of the hoist (See Figure 6-1). For the SLE21, the standard hour count is for high speed only.
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Table 6-1 Quantity of Lubricant Type of Lubrication Point Characteristics, Makes Oil - US quarts (ml) Lubricant Grease - Ounces (g) 1 Viscosity: 460 /s/40°C (220/s/40°C), pour point: -20°C (- RHN02, RHN03 1.7 (1500) 40°C) flash point: +265°C (+320°C), e.g.: Fuchs Renolin CLP 460 , Aral Degol BG 460,BP Energol GR-XP 460, Esso Spartan EP 460, Mobil Gear 634, Tribol 1100/460,...
Hoist Motor Brake 6.3.1 To keep your hoist working in optimum condition and prevent possible down time, it is recommended to check your motor brake at regular intervals. Intervals must be adapted in accordance with the application. 6.3.2 Before proceeding, ensure that the electrical supply for the hoist or trolley has been de-energized (disconnected).
6.3.5 Motor Brake Re-assembly – Reassemble the parts in reverse order of removal. Ensure that the check hole for measuring the air gap is underneath. Observe tightening torques in Table 5-8. Trolley Motor Brake 6.4.1 To keep your hoist working in optimum condition and prevent possible down time, it is recommended to check your motor brake at regular intervals.
6.5.2 Be certain that the replacement wire rope is obtained from Harrington Hoists, Inc. and is the correct wire rope for the hoist. See factory certificate for part number of rope. Rope must be replaced as required by DIN 15020, FEM 9.661 and ISO 4309. If the wire rope is being replaced due to...
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6.5.3 After commissioning a new wire rope hoist, or after replacing the rope, the rope of multi-fall hoists may twist. This can be seen from the bottom hook block turning, particularly when unloaded. Twisting in the rope prejudices safety and service life. Remove any twists! Regularly inspect the rope for twisting and follow the procedure in Table 5-5 “Wire Rope-Twisting”...
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Figure 6-5 Fig 6-6 Figure 6-7 Figure 6-8 6.5.5 Wire Rope Installation/Rope Guide Installation The hoist must be properly powered and operational in order to perform the following procedures. When replacing Wire Rope, check for wear on mating parts, i.e. Drum, Sheaves, Hook Block Sheaves, and replace if necessary.
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Figure 6-9 7) Press the “UP” button on the Pendant to wind the Wire Rope onto the Drum. Tightly wind about 5-10 turns onto the drum (see Figure 6-8). Let the rope run through a greased rag. See Section 6.1 for grease type.
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Figure 6-10 Figure 6-11 Figure 6-12 Figure 6-14 Figure 6-15 Figure 6-13 10) Carry out again all the sequences described in Section 6.6 “Reeving and Adjustments”. Lubricate the Wire Rope, the Rope Guide and Drum (see Section 6.2). 11) Retighten clamping plates. Torque the Screws to the value shown in Table 6-1 for your hoist (see Figure...
Reeving and Anchorage 6.6.1 Reeving the bottom block Use a pliers to hold the rope securely. 1. The hoist must be energized in order to complete the reeving of the rope. Take extreme caution while performing this operation. Lay out the end of the rope that is not wound on the drum. Let this end hang freely. 3.
Anchorage Configurations (Continued) Table 6-3 RHN02, RHN03,RHN05, RHN08, RHN10 Trolley Hoist “a” and “b” dimensions (mm) Hoist Model RHN02 RHN03 RHN05 RHN08 RHN10 Figure 6-23 RHN15 11. Operate the hoist several times up and down (without a load) for the entire length of the lift. 12.
Troubleshooting HAZARDOUS VOLTAGES ARE PRESENT IN THE HOIST AND IN CONNECTIONS BETWEEN COMPONENTS. Before performing ANY troubleshooting on the equipment, de-energize the supply of electricity to the equipment, and lock and tag the supply device in the de-energized position. Refer to ANSI Z244.1, “Personnel Protection - Lockout/Tagout of Energy Sources.”...
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Table 7-1 Troubleshooting Guide Symptom Cause Remedy Check circuit for loose connections. Check down limit switch for Down circuit open malfunction. Broken conductor in Check the continuity for each conductor in the cable. If one is pendant cord broken, replace entire cable. Faulty magnetic Check coils for open or short circuit.
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Table 7-1 Troubleshooting Guide Symptom Cause Remedy Wrong voltage or Check voltage and frequency of power supply against the rating frequency on the nameplate on the motor. Brake drags Check motor brake adjustment for proper clearance. Overheating Above an ambient temperature of 104°F, the frequency of hoist Extreme external operation must be reduced to avoid overheating of the motor.
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• Check voltage (terminal 6) System error • Switch RPU off/on • Replace RPU • Check voltage (terminal 6) No control voltage, faulty fuse, faulty • Switch RPU off/on Load Monitor • Replace RPU...
Warranty All products sold by Harrington Hoists, Inc. are warranted to be free from defects in material and workmanship from date of shipment by Harrington for the following periods: Manual Hoists, Trolleys, & Beam Clamps – 2 years NER2/ER2 Hoists Enhanced Features Models – 3 Years (N)ER030L(D), All Other Electric and Air Hoists, Trolleys, Crane Components –...
Parts List When ordering Parts, please provide the Hoist product number and serial number located on the Hoist nameplate (see fig. below). Reminder: Per Sections 1.1 3.9.1 to aid in ordering Parts and Product Support, record the Hoist product number and serial number in the space provided on the cover of this manual. The parts list is arranged into the following sections: Section Page...
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9.2 Gearing Parts Parts Figure Part Name RHN02 RHN03 RHN05 RHN08 RHN10 Hoist 2-10 Ton Gear Assembly, Standard RHN0304 RHN0306 RHN0308 Cover RHN0001 RHN0085 RHN0146 Seal RHN0002 RHN0086 RHN0147 Socket head cap screw 9691201 Lock washer 9012709 End cap RHN0003 RHN0045 RHN0132 End cap...
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9.5 Hook Block Parts Parts Figure No. Part Name RHN15 RHN20 Hoist RHN15D and RHN20D Bottom Hook Block RHN0271 Side cheek RHN0272 Protection hood RHN0273 Rope pulley RHN0260 Locking ring RHN0275 Grooved ball bearing 9001225 Axle RHN0276 Retaining disc RHN0277 Socket head cap screw 90912112 Spring washer...
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9.6 Terminal Box Parts Parts Figure Part Name RHN02 RHN03 RHN05 RHN08 RHN10 RHN15 RHN20 Hoist Terminal box RHN0065 RHN0205 RHN0287 Sealing ring RHN0066 RHN0206 RHN0288 Socket head cap screw 9093307 9091274 (*Qty=6) 9091273(*Qty=8) Round sealing ring RHN0207 RHN0289 Seal RHN0067 RHN0208 RHN0290...
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For Sales and Product Support in the U.S., contact: www.harringtonhoists.com Harrington Hoists, Inc. Harrington Hoists – Western Division 401 West End Avenue 2341 Pomona Rd. No. 103 Manheim, PA 17545-1703 Corona, CA 92880-6973 Phone: 717-665-2000 Phone: 951-279-7100 Toll Free: 800-233-3010...
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