Published 01-15-2016, Control # 526-01 5-5
RT540E OPERATOR MANUAL LUBRICATION
Surface Protection for Cylinder Rods
Steel cylinder rods include a thin layer of chrome plating on
their surfaces to protect them from corroding. However,
chrome plating inherently has cracks in its structure which
can allow moisture to corrode the underlying steel. At typical
ambient temperatures, hydraulic oil is too thick to penetrate
these cracks. Normal machine operating temperatures will
allow hydraulic oil to warm sufficiently to penetrate these
cracks and if machines are operated daily, protect the rods.
Machines that are stored, transported, or used in a corrosive
environment (high moisture, rain, snow, or coastline
conditions) need to have the exposed rods protected more
frequently by applying a protectant. Unless the machine is
operated daily, exposed rod surfaces will corrode. Some
cylinders will have rods exposed even when completely
retracted. Assume all cylinders have exposed rods, as
corrosion on the end of the rod can ruin the cylinder.
It is recommended that all exposed cylinder rods be
protected using Boeshield® T-9 Premium Metal Protectant.
Manitowoc Crane Care has Boeshield® T-9 Premium Metal
Protectant available in 12 oz cans that can be ordered
through Manitowoc Crane Care (request P/N 9999101803).
Cylinder operation and inclement weather will remove the
Boeshield® protectant; therefore, inspect machines once a
week and reapply Boeshield® to unprotected rod
WIRE ROPE LUBRICATION
Wire rope is lubricated during manufacturing so that the
strands, and individual wires in strands, may move as the
rope moves and bends. A wire rope cannot be lubricated
sufficiently during manufacture to last its entire life.
Therefore, new lubricant must be added periodically
throughout the life of a rope to replace factory lubricant which
is used or lost. For more detailed information concerning the
lubrication and inspection of wire rope, refer to WIRE ROPE
in Section 1- INTRODUCTION in the Service Manual.
LUBRICATION POINTS
A regular frequency of lubrication must be established for all
lubrication points. Normally, this is based on component
operating time. The most efficient method of keeping track of
lube requirements is to maintain a job log indicating crane
usage. The log must use the engine hourmeter to ensure
coverage of lube points that will receive attention based on
their readings. Other lubrication requirements must be made
on a time basis, i.e. weekly, monthly, etc.
All oil levels are to be checked with the crane parked on a
level surface in transport position, and while the oil is cold,
unless otherwise specified.
On plug type check points, the oil levels are to be at the
bottom edge of the check port.
All grease fittings are SAE STANDARD unless otherwise
indicated. Grease non-sealed fittings until grease is seen
extruding from the fitting. One ounce(28 grams) of EP-MPG
equals one pump on a standard one pound (0.45 kg) grease
gun.
Over lubrication on non-sealed fittings will not harm the
fittings or components, but under lubrication will definitely
lead to a shorter lifetime.
On sealed U-joints, care must be exercised to prevent
rupturing seals. Fill only until expansion of the seals first
becomes visible.
Unless otherwise indicated, items not equipped with grease
fittings, such as linkages, pins, levers, etc., should be
lubricated with oil once a week. Motor oil, applied sparingly,
will provide the necessary lubrication and help prevent the
formation of rust. An Anti-Seize compound may be used if
rust has not formed, otherwise the component must be
cleaned first.
Grease fittings that are worn and will not hold the grease
gun, or those that have a stuck check ball, must be replaced.
Where wear pads are used, cycle the components and
relubricate to ensure complete lubrication of the entire wear
area.
CraneLUBE
Manitowoc highly recommends the use of CraneLUBE
lubricants to increase your crane’s reliability and
performance. Contact your Manitowoc Distributor for
information about the Manitowoc’s CraneLUBE lubrication
program.
Safety
To lubricate many of the locations the engine will need to be
started. After positioning areas of the unit for lubrication the
engine must be turned off and the moved areas stable before
approaching.
DANGER
Crushing Hazard!
Movement of superstructure and boom may create a
crushing and/or pinching hazard. Failure to observe this
warning could result in death or serious injury.
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