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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., PO Box 347,
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
A34637-A-0624
OWNER'S MANUAL
For 5AT1, 5AT2 Series
Aluminum Portable Davit Cranes
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Summary of Contents for Thern COMMANDER AL 5AT1 Series
- Page 1 Read this Owner’s Manual thoroughly before operating the equipment. Keep it with the equipment at all times. Replacements are available from Thern, Inc., PO Box 347, 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.
- 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 Page 4 Owner's Manual for Thern 5AT1/5AT2 Commander Series Aluminum Portable Davit Cranes Owner's Manual for Thern 5AT1/5AT2 Commander Series Alumnium Portable Davit Cranes Page 5 Installing the Crane Suggestions for Safe Operation (cont.) DO NOT do the following: Important! Do not install the crane in an area defined as hazardous by the National Electric Do not lift people, or things over people.
- Page 4 Page 6 Owner's Manual for Thern 5AT1/5AT2 Commander Series Aluminum Portable Davit Cranes Owner's Manual for Thern 5AT1/5AT2 Commander Series Alumnium Portable Davit Cranes Page 7 Assembling the Crane Figure 2 – Assembly Steps Important! When installing the ratchet jack, support the end of the boom so the boom WINCH does not fall and the ratchet jack does not swing up causing damage or injury.
- Page 5 Page 8 Owner's Manual for Thern 5AT1/5AT2 Commander Series Aluminum Portable Davit Cranes Owner's Manual for Thern 5AT1/5AT2 Commander Series Alumnium Portable Davit Cranes Page 9 General Theory of Operation Preparing for Operation THE INTENDED USE of this machinery is to lift and lower loads of its 2.1.1...
- Page 6 Page 10 Owner's Manual for Thern 5AT1/5AT2 Commander Series Aluminum Portable Davit Cranes Owner's Manual for Thern 5AT1/5AT2 Commander Series Alumnium Portable Davit Cranes Page 11 Attaching the Load Cleaning the Crane Clean the crane to remove dirt and help prevent rust and corrosion.
- Page 7 Page 12 Owner's Manual for Thern 5AT1/5AT2 Commander Series Aluminum Portable Davit Cranes Owner's Manual for Thern 5AT1/5AT2 Commander Series Alumnium Portable Davit Cranes Page 13 Disassembling the Crane Inspecting the Equipment Important! When removing the boom extension, hold the boom extension securely so it •...
- Page 8 Page 14 Owner's Manual for Thern 5AT1/5AT2 Commander Series Aluminum Portable Davit Cranes Owner's Manual for Thern 5AT1/5AT2 Commander Series Alumnium Portable Davit Cranes Page 15 checked boxes indicate damage or problem in need of repair Table 2 – Inspection Checklist Instructions for Periodic Inspection 3.4.4...
- Page 9 E4 (4777-K) 43.1 43.5 ratchet jack fully un-threads • travel limit pin damaged ..... contact Thern E4DC (4777DC-K) 54.0 54.5 Refer to the Winch Owner’s Manual for possible problems with the winch and brake.
- Page 10 Page 18 Owner's Manual for Thern 5AT1/5AT2 Commander Series Aluminum Portable Davit Cranes Owner's Manual for Thern 5AT1/5AT2 Commander Series Alumnium Portable Davit Cranes Page 19 Transporting the Crane Field Test Procedure Important! PARTIALLY DISASSEMBLE THE CRANE into components that can be Use the following instructions to perform a pre-service load test on new, •...
- Page 11 Page 20 Owner's Manual for Thern 5AT1/5AT2 Commander Series Aluminum Portable Davit Cranes Owner's Manual for Thern 5AT1/5AT2 Commander Series Alumnium Portable Davit Cranes Page 21 Model 5AT1 Model 5AT2 item description part number qty. item description part number qty.
- Page 12 Page 22 Owner's Manual for Thern 5AT1/5AT2 Commander Series Aluminum Portable Davit Cranes Owner's Manual for Thern 5AT1/5AT2 Commander Series Alumnium Portable Davit Cranes Page 23 Pedestal Base Pedestal Base - Aluminum 5BP10 5ABP1 item part no. description item part no.
- Page 13 Page 24 Owner's Manual for Thern 5AT1/5AT2 Commander Series Aluminum Portable Davit Cranes Owner's Manual for Thern 5AT1/5AT2 Commander Series Alumnium Portable Davit Cranes Page 25 5AT2 Series Lift Below Floor 5AT1 Series Lift Below Floor Lift Below Wire Rope...
- Page 14 Page 26 Owner's Manual for Thern 5AT1/5AT2 Commander Series Aluminum Portable Davit Cranes Owner's Manual for Thern 5AT1/5AT2 Commander Series Alumnium Portable Davit Cranes Page 27 NOTES: NOTES: A34637-A-0624 A34637-A-0624...
- Page 15 Thern Winches & Cranes Thern, Incorporated Thern Europe 5712 Industrial Park Road Siriusdreef 17-27, 2132 WT Winona, MN 55987 Hoofddorp The 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...
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