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Owner's Manual for Thern 5FT20 and 5FT25 Captain Series Stationary Davit Cranes
Table 4 – Crane Weight Chart
Model
5FT20
Model
5FT25
3.5
Repairing the Crane
3.5.1
GET FACTORY AUTHORIZATION for all repairs. Unauthorized repairs
will void the warranty, and may lead to damage or failure of the crane.
3.5.2
REPLACE DAMAGED OR POORLY OPERATING PARTS with Thern
repair parts.
3.5.3
REFINISH AREAS where the paint is worn or flaking. A good finish
helps to protect against corrosion and weather damage.
a
REMOVE THE FINISH from damaged areas, down to the bare metal.
b
CLEAN THE AREA thoroughly.
c
REPAINT with a high quality primer and finishing coat.
3.5.4
TO ORDER REPAIR PARTS, contact your local dealer. Include the
following information when ordering:
•
model number
•
serial number (or code number)
•
part number
•
product finish (enamel, epoxy, galvanized, etc.)
•
date purchased, and from whom
•
description of what happened, or what is wrong
•
your name and return address
Crane Component
lbs
(kg)
lbs
(kg)
Mast Assembly
201
(91.2)
339
(153.8)
Boom Assembly
76
(34.5)
118
(53.5)
Boom Extension Assembly
47
(21.3)
81
(36.8)
Ratchet Jack
25
(11.3)
25
(11.3)
TOTAL
349
(158.3)
563
(255.4)
Winch (including adapter)
lbs
(kg)
lbs
(kg)
M4312PB-K
17
(7.7)
-
-
M4312PBSS-K
17
(7.7)
-
-
4WM2-K
28
(12.7)
-
-
M452B-K
-
-
77
(35.0)
2W40V-BM-K
132
(59.9)
122
(55.4)
4WP2-K
64
(29.1)
-
-
4771-K
92
(41.8)
-
-
4771DC-K
109
(49.4)
-
-
3WG4B-K
202
(91.6)
192
(87.1)
3WG4MT-K
-
-
202
(91.6)
Important!
• It is your responsibility
to determine when to
replace parts. When
considering whether to
continue using a part or
to replace it, remember
that replacing it is the
best way to avoid
further equipment
damage.
• Appoint a qualified
person to be responsible
for all repairs to the
equipment.
