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Thern ENSIGN 500 Owner's Manual

Portable davit cranes
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Read this Own er's Man u al
thor ough ly be fore op er at ing
the equip ment. Keep it with
the equip ment at all times.
Re place ments are avail able
from Thern, Inc.,
5712 Industrial Park Road,
Winona, MN 55987,
507-454-2996.
www.thern.com
IMPORTANT: Please record
product information on
page 2. This information is
re quired when calling the
fac to ry for service.
ORIGINAL TEXT
A11577B-0613
Owner's Man ual
For
5PA5 Ensign Series
Portable Davit Cranes

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Summary of Contents for Thern ENSIGN 500

  • Page 1 Read this Own er’s Man u al thor ough ly be fore op er at ing the equip ment. Keep it with the equip ment at all times. Re place ments are avail able from Thern, Inc., 5712 Industrial Park Road, Winona, MN 55987, 507-454-2996. www.thern.com...
  • Page 2 Thern, Inc. warrants its products against defects in material or workmanship for two years from the date of purchase Please record the following: by the original using buyer, or if this date cannot be established, the date the product was sold by Thern, Inc. to the Date Purchased: dealer.
  • Page 3 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes page 3 Suggestions for Safe Operation DO the following: Read and comply with the guidelines set forth in this Owner’s Manual. Keep this manual, and all labels attached to the crane, readable and with the equip- ment at all times.
  • Page 4 4 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes Installing the Crane Important! Do not install the crane in an area defi ned as hazardous by the National Electric • A qualifi ed professional should Code, unless installation in such an area has been thoroughly approved.
  • Page 5 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes page 5 Assembling the Crane Important! When installing the mast, ensure the mast is fully and properly seated on the • Inspect the crane during as sem bly pin in the bottom of the base.

  • Page 6: Boom Assembly

    6 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes INSTALL THE WINCH HANDLE on hand winches, or connect electric cur- 1.2.4 Figure 2 – Sheave rent on power winches. Refer to instructions in the Winch Owner’s Manual.
  • Page 7 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes page 7 General Theory of Operation THE INTENDED USE of this machinery is to lift and lower loads of its 2.1.1 Important! rated capacity or less. It is not for lifting people or things over people.
  • Page 8 8 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes Preparing for Operation CONSIDER THE OPERATION. Do not begin until you are sure you can 2.2.1 Important! perform the entire operation without hazard. • Start an inspection program as INSPECT ALL COMPONENTS of the system.
  • Page 9 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes page 9 Attaching the Load Figure 6 – Attaching Load Do not wrap the wire rope around the load. This damages the wire rope and could cause the load to escape. Use a sling or other approved lifting device.
  • Page 10 10 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes Cleaning the Crane Clean the crane to remove dirt and help prevent rust and corrosion. Important! CLEAN THE CRANE every six months or whenever it is dirty. 3.1.1...
  • Page 11 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes page 11 Disassembling the Crane When removing the boom brace assembly, carefully support the boom so that it does not fall abruptly causing damage or injury. STUDY PARTS DRAWINGS to understand how the crane is assembled. See 3.3.1...
  • Page 12 12 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes Inspecting the Equipment Important! Do not use damaged or malfunctioning equipment. Place an “OUT OF ORDER” • Start an inspection program as sign on the crane. Do not use the crane until the sign is removed by a qualifi ed soon as you put the crane into use.
  • Page 13 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes page 13 Table 2 – Inspection Checklist checked boxes indicate damage or problem in need of repair damages problems general fi nish weathered, fl aking, otherwise damaged equipment not properly lubricated...
  • Page 14 14 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes Instructions for Periodic Inspection 3.4.4 Perform periodic inspections: VISUALLY INSPECT the crane and all other equipment. • Every 6 months. • Check the fi nish for wear, fl aking, or other damage.
  • Page 15 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes page 15 FASTEN THE CRANE BASE securely to the foundation. Figure 9 – Rope Diameter REASSEMBLE THE CRANE. TEST CRANE PERFORMANCE by operating the crane with a load not diameter exceeding the load rating.
  • Page 16 16 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes Repairing the Crane GET FACTORY AUTHORIZATION for all repairs. Unauthorized repairs 3.5.1 Important! will void the warranty, and may lead to damage or failure of the crane. • It is your responsibility to de- REPLACE DAMAGED OR POORLY OPERATING PARTS with Thern 3.5.2...

  • Page 17: Table Of Contents

    Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes page 17 Transporting the Crane PARTIALLY DISASSEMBLE THE CRANE into components that can be 4.1.1 Important! transported. Figure 10 shows a confi guration with the mast and boom se- cured together.
  • Page 18 18 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes 5PA5 Series Portable Davit Cranes item description part number qty. material BEARING ASSY 5PA5 B5834 SEE TABLE WELDMENT MAST 5PA5 B5829 SEE TABLE BRACKET SHEAVE 5PA5 C4826 SEE TABLE...
  • Page 19 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes page 19 Pedestal Base 5BP5 Series model material item 1 item 2 item part no. description 5BP5 STEEL B5821RED B6251RED 5BP5G STEEL B5821GAL B6251GAL B5821 WELDMENT BASE 5PA5 5BP5S SST, AISI 304 B5821SS...

  • Page 20: Lb Kg

    48 in Performance Characteristics are for standard products referred to in this manual. Non-standard products may vary from the original design. Contact Thern, Inc. for this information. 36 in Wire rope assemblies include a swivel hook and swaged ball tting to work with quick disconnect anchor on winches.
  • Page 21 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes page 21 NOTES: A11577B-0613...
  • Page 22 22 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes A11577B-0613...
  • Page 23 Owner's Manual for Thern 5PA5 Ensign Series Portable Davit Cranes page 23 A11577B-0613...
  • Page 24 Thern, Incorporated 5712 Industrial Park Road Winona, MN 55987 PHN 507-454-2996 FAX 507-454-5282 EMAIL: info@thern.com www.thern.com...

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