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Thern 5PA10 Owner's Manual

Portable davit cranes
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Read this Owner's Manual
thoroughly before operating
the equipment. Keep it with
the equipment at all times.
Replacements are available
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
required when calling the
factory for service.
ORIGINAL TEXT
A11577I-0617
Owner's Manual
For
5PA5 and 5PA10 Ensign Series
Portable Davit Cranes

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Summary of Contents for Thern 5PA10

  • Page 1 5712 Industrial Park Road, Winona, MN 55987, 507-454-2996. www.thern.com IMPORTANT: Please record product information on page 2. This information is required when calling the factory for service. ORIGINAL TEXT Owner’s Manual 5PA5 and 5PA10 Ensign Series Portable Davit Cranes A11577I-0617...
  • 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 and 5PA10 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 equipment at all times.
  • Page 4 4 Owner's Manual for Thern 5PA5 and 5PA10 Ensign Series Portable Davit Cranes Installing the Crane Important! Do not install the crane in an area defined as hazardous by the National Electric • A qualified professional should Code, unless installation in such an area has been thoroughly approved.

  • Page 5: Boom Brace Assembly

    Owner's Manual for Thern 5PA5 and 5PA10 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 assembly pin in the bottom of the base.

  • Page 6: Handle

    6 Owner's Manual for Thern 5PA5 and 5PA10 Ensign Series Portable Davit Cranes INSTALL THE WINCH HANDLE on hand winches, or connect electric 1.2.4 Figure 3 – Sheave current on power winches. Refer to instructions in the Winch Owner’s Manual.
  • Page 7 Owner's Manual for Thern 5PA5 and 5PA10 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 and 5PA10 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. • When determining whether the INSPECT ALL COMPONENTS of the system.
  • Page 9 Owner's Manual for Thern 5PA5 and 5PA10 Ensign Series Portable Davit Cranes page 9 Attaching the Load Figure 8 – 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 and 5PA10 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.
  • Page 11 Owner's Manual for Thern 5PA5 and 5PA10 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 and 5PA10 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 qualified soon as you put the crane into use.
  • Page 13 Owner's Manual for Thern 5PA5 and 5PA10 Ensign Series Portable Davit Cranes page 13 Table 2 – Inspection Checklist checked boxes indicate damage or problem in need of repair damages problems general finish weathered, flaking, otherwise damaged equipment not properly lubricated parts cracked, bent, rusted, worn, otherwise damaged unusual noises, other signs of malfunction...
  • Page 14 14 Owner's Manual for Thern 5PA5 and 5PA10 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 finish for wear, flaking, or other damage.
  • Page 15 Owner's Manual for Thern 5PA5 and 5PA10 Ensign Series Portable Davit Cranes page 15 FASTEN THE CRANE BASE securely to the foundation. Figure 11 – Rope Diameter REASSEMBLE THE CRANE. TEST CRANE PERFORMANCE by operating the crane with a load not diameter exceeding the load rating.

  • Page 16: Table Of Contents

    16 Owner's Manual for Thern 5PA5 and 5PA10 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.
  • Page 17 Owner's Manual for Thern 5PA5 and 5PA10 Ensign Series Portable Davit Cranes page 17 Transporting the Crane PARTIALLY DISASSEMBLE THE CRANE into components that can 4.1.1 Important! be transported. Figure 12 shows a configuration with the mast and boom secured together.

  • Page 18: M3 (M4042Pbss-K)

    18 Owner's Manual for Thern 5PA5 and 5PA10 Ensign Series Portable Davit Cranes 5PA5 Series Portable Davit Cranes item description part number qty. material BEARING ASSY 5PA5 B7468 WELDMENT MAST 5PA5 B5829 SEE TABLE BRACKET SHEAVE 5PA5 C4826 SEE TABLE...

  • Page 19: M3 (M4312Pbss-K)

    Owner's Manual for Thern 5PA5 and 5PA10 Ensign Series Portable Davit Cranes page 19 5PA10 Series Portable Davit Cranes item description part number qty. material WELDMENT MAST 5PA10 B6100 SEE TABLE BRACKET SHEAVE 5PA10 D3964 SEE TABLE WELDMENT BOOM 5PA10...
  • Page 20 20 Owner's Manual for Thern 5PA5 and 5PA10 Ensign Series Portable Davit Cranes Pedestal Base 5BP5 Series item part no. description SEE TABLE WELDMENT BASE 5BP5 5BC5 BASE COVER W/LANYARD A14588 LABEL THERN A14615 RETAINER PUSH W hen ordering parts, be sure to specify whether the finish is red, galvanized, epoxy or stainless.
  • Page 21 Owner's Manual for Thern 5PA5 and 5PA10 Ensign Series Portable Davit Cranes page 21 Pedestal Base 5BP10 Series item part no. description SEE TABLE WELDMENT BASE 5BP10 SBC10 BASE COVER W/LANYARD A14588 LABEL THERN A14615 RETAINER PUSH A4379 NUT HEX JAM NYLK .312-18NC SST 18-8 A13820 CAPSCR SOKLHD .312-18NC X .500 ZNPL...

  • Page 22: Lb Kg

    22 Owner's Manual for Thern 5PA5 and 5PA10 Ensign Series Portable Davit Cranes 5PA5 Series Lift Below Floor Lift Below Wire Rope Wire Rope Winch Floor Diameteter Length Configurations Minimum (B4) Maximum (B1) (ft) (ft) (in) (mm) (ft) 3/16...
  • Page 23 Owner's Manual for Thern 5PA5 and 5PA10 Ensign Series Portable Davit Cranes page 23 5PA10 Series Lift Below Floor Lift Below Wire Rope Wire Rope Winch Floor Diameteter Length Configurations Minimum (B4) Maximum (B1) (ft) (ft) (in) (mm) (ft) 3/16 3/16 10.9...
  • Page 24 Thern, Incorporated Thern Europe 5712 Industrial Park Road Bedrijvenpark Twente 454e Winona, MN 55987 7602 KM Almelo Netherlands PH 507-454-2996 FAX 507-454-5282 PH +31-546-898-380 EMAIL: info@thern.com EMAIL: europe@thern.com www.thern.com...