SECTION 2 - GENERAL INSTALLATION INFORMATION
2-18
MP SERIES CONE CRUSHER TECHNICAL REFERENCE MANUAL
SEE THE APPROPRIATE FOLLOWING
SECTION FOR THE CORRESPONDING
CONDITIONS REGARDING NEW OR
EXISTING BELTS AND NEW OR EXISTING
COUNTERSHAFT BUSHINGS.
2.8.5 Tensioning Procedure for Standard
V-belts for a New Crusher Installation When
a New Countershaft Bushing with new
V-belts Has Been Installed
1. Tension the belts to the MINIMUM
TENSION shown in Table 2-6.
2. Run the Crusher WITHOUT material for a
period of 2 hours. See INITIAL START-UP
AND BREAK-IN PROCEDURE in
Section 11
.
3. After the 2 hour period retension the belts to
the INITIAL TENSION shown in Table 2-6.
4. After completing the 6 hours of reduced
load running, the belts tension should be
checked to ensure it is above the MINIMUM
TENSION shown in Table 2-6. If the tension
is not above the MINIMUM TENSION then
retension to the MAXIMUM TENSION
shown in Table 2-6.
5. After 1-4 hours of full load operation the
belts should be checked and if necessary
retensioned so that the force is between the
MINIMUM and MAXIMUM TENSION
shown in Table 2-6.
6. After 24-48 hours, it is well to check the belt
tension to see if the force on the belts is
between the MINIMUM and MAXIMUM
TENSION shown in Table 2-6. Retension if
necessary.
2.8.6 Tensioning Procedure for Standard
V-belts When a New Countershaft Bushing
Has Been Installed and Using the Existing
V-belts
1. Tension the belts to the MINIMUM
TENSION shown in Table 2-6.
2. Run the Crusher WITHOUT material for a
period of 2 hours. See INITIAL START-UP
AND BREAK-IN PROCEDURE in
Section 11
.
3. After the 2 hour period, retension so that the
force is between the MINIMUM and
MAXIMUM TENSION shown in Table 2-6.
4. After 24-48 hours, check the belt tension to
see if the force on the belts is between the
MINIMUM and MAXIMUM TENSION
shown in Table 2-6. Retension if necessary.
2.8.7 Tensioning Procedure for Standard
V-belts When New V-belts Have Been
Installed With Existing Countershaft
Bushing
1. Tension the V-belts to the INITIAL
TENSION shown in Table 2-6.
2. After 1-4 hours of full load operation, the
belt tension should be checked to ensure it is
between the MINIMUM and MAXIMUM
TENSION shown in Table 2-6. Retension if
necessary.
3. After 24-48 hours, it is well to check the belt
tension to see if the force on the belts is
between the MINIMUM and MAXIMUM
TENSION shown in Table 2-6. Retension if
necessary.
2.8.8 Retensioning Procedure for Standard
V-belts Using Existing V-belts
1. Retension the belts so that the force on the
belts is between the MINIMUM and
MAXIMUM TENSION shown in Table 2-6.
Summary of Contents for MP1000
Page 1: ...Nordberg MP Series Cone Crusher ...
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Page 64: ...SECTION 0 SAFETY 0 56 MP SERIES CONE CRUSHER TECHNICAL REFERENCE MANUAL ...
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Page 154: ...Countershaft and Countershaft Box Callout Description 1 Countershaft 2 Countershaft box 1 2 ...
