SECTION 2 - GENERAL INSTALLATION INFORMATION
MP SERIES CONE CRUSHER TECHNICAL REFERENCE MANUAL
2-37
2.20 Protecting the Crusher Against Rust
Corrosion
To protect your Crusher from rust corrosion during
seasonal shutdown or for outdoor storage (winter or
summer), the following protective measures are
recommended:
1. Remove the bowl, feed plate, head, socket
and eccentric assemblies. Disconnect the oil
drain line at the bottom of the main frame
and the oil pressure inlet at the bottom of the
main shaft. Make sure that all piping and the
hole in the bottom of the main shaft are
sealed with blind flanges and gaskets.
2. Use a wide paintbrush to paint all inside
surfaces of the main frame with rust
preventive lubricating oil.
Use lubricating oil which has a rust
preventive blend that is designed for the
protection of internal parts of enclosed
assemblies such as engines, compressors,
pumps, gear sets, and hydraulic assemblies.
Metso Minerals suggests the use of
Mobilarma 522 or equivalent. The rust
preventives function by displacing water
from metal surfaces, by forming strong
water-resistant films on the surfaces, and by
absorbing water in the system into a
water-in-oil emulsion. These products
provide as much as 30 to 40 times the
protection against rust as high quality
lubrication oils that have not been especially
formulated to prevent rust.
In most applications, the residual rust
preventive film left by these products need
not be flushed away or otherwise removed
when the Crusher is to be filled with
lubricating oil and put into normal service.
Generally, 208 liters (55 U.S. gallons) is
sufficient to coat a Crusher. The viscosity of
the oil should be in the 150 to 300 SSU at
38°C (100°F) range.
3. Using the paintbrush, coat the lower thrust
bearing, the outer surface of the main shaft,
and all exposed surfaces of the pinion with
rust preventive oil. Remove the countershaft
box oil feed hose from the side of the
countershaft box. Place a funnel in the hole
at the countershaft box and pour oil into the
countershaft box while rotating the
countershaft. Approximately 20 liters
(5 U.S. gallons) will be required to coat the
entire countershaft box area. Some leaking
will occur from the drive end of the
countershaft box, this is normal.
Reinstall the oil feed hose to the
countershaft box.
4. Fill the lubricating hole in the main shaft
with Mobilarma 522 or equivalent until the
hole is filled with oil, then drain.
5. Coat the outer surface of the eccentric, the
bore of the eccentric bushing, the gear and
the upper thrust bearing with Mobilarma 522
or equivalent.
6. Brush a coating of the special oil onto the
head ball, the bore of the upper and lower
head bushings, machined surfaces of the
head above the head ball (if the Crusher uses
a clutch style antispin device some
additional disassembly may be required) and
all areas of the head adjacent to the T-seal.
7. Reinstall the eccentric assembly and the
socket assembly. Apply a coat of the special
oil to the bearing surface of the socket liner
and the exposed surfaces of the socket.
Install the head assembly and then the feed
plate.
8. Fill the oil tank on the power unit with
similar rust preventive oil having a viscosity
of 150 SSU at 38°C (100°F). 380 liters
(100 U.S. gallons) are required for the entire
hydraulic system. Make sure the oil is
compatible with the oil specified for
operation of the Crusher as well as a
hydraulic system where neoprene,
polyurethane, bronze, nickel, chrome, steel
and iron are used.
The hydraulic tramp release, clamping, bowl
clearing and bowl turning mechanisms must
be operated to assure that the power unit and
NOTICE
If the recommendations listed below are
followed, a Crusher stored outdoors should
have 6 - 12 months of rust protection.
Summary of Contents for MP1000
Page 1: ...Nordberg MP Series Cone Crusher ...
Page 2: ......
Page 4: ......
Page 6: ......
Page 8: ......
Page 64: ...SECTION 0 SAFETY 0 56 MP SERIES CONE CRUSHER TECHNICAL REFERENCE MANUAL ...
Page 66: ......
Page 74: ......
Page 154: ...Countershaft and Countershaft Box Callout Description 1 Countershaft 2 Countershaft box 1 2 ...
