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Owner's Manual for Thern 5FT20 and 5FT25 Captain Series Stationary Davit Cranes
3.1
Cleaning the Crane
Clean the crane to remove dirt and help prevent rust and corrosion.
3.1.1
CLEAN THE CRANE every six months or whenever it is dirty.
a
WIPE ALL EQUIPMENT to remove dirt and grease.
b
LEAVE A LIGHT FILM of oil on all surfaces to protect against rustand
corrosion.
c
WIPE OFF excessive amounts of oil to avoid the accumulation of dirt.
3.1.2
REMOVE UNNECESSARY OBJECTS from the area surrounding the
crane.
3.2
Lubricating the Crane
Lubricate the crane properly to help protect it from wear and rust. Read the
following instructions carefully.
3.2.1
LUBRICATE ALL PINS before installation and at least every 3 months.
Use a grease brush to apply a light film of NLGI #2 grease to all pins.
3.2.2
LUBRICATE THE MAST ROLLERS located inside of the mast before
installation and at least every 3 months. Use a grease gun to apply NLGI
#2 grease to the grease fitting on the side of the mast.
3.2.3
LUBRICATE THE MAST BEARING located at the top of the mast
before installation and at least every 3 months. Use a grease gun to apply
NLGI #2 grease to the grease fitting at the top of the mast.
3.2.4
LUBRICATE THE RATCHET JACK before installation and at least
every 3 months. Use a grease gun to apply NLGI #2 grease to the grease
fittings on the ratchet jack until excess grease can be seen. Wipe away
any excess lubricant.
3.2.5
LUBRICATE THE WINCH. Refer to the Winch Owner’s Manual for
instructions.
3.2.6
LUBRICATE THE WIRE ROPE and other equipment by following the
manufacturer's recommendations.
Important!
Increase the frequency of
maintenance procedures if
the crane is:
• Operated for long periods.
• Used to lift heavy loads.
• Operated in wet,
dirty, hot, or cold
surroundings.
Important!
• Make sure lubricant has
a temperature rating
appropriate for the
ambient temperatures
of the operation.
