Pxz series rotary crusher

Heavy Duty Hydraulic Rotary Crusher

PXZ Series Rotary Crusher
PXZ旋回破碎机使用维修手册
第 2 页 / Chapter1 Overview
Welcome to the products of the Shanhu Group!
This manual is written for the user and the actual personnel to better operate and
maintain the PXZ series heavy duty hydraulic rotary crusher. Please read the
contents of this manual carefully before using machine and maintain and use it as
required. Only when you operate and maintain the crusher correctly,then you can
get the best performance, the longest working life of wearable parts, the lowest
maintenance and the best production efficiency.
welcome to use the "SHANHU" brand PXZ series heavy duty hydraulic rotary
crusher. Due to the continuous growth of the technology of the mountain tiger, the
contents and data in this manual are subject to change without prior notice. Please
request the official shape and installation dimension drawing after ordering.
1 Overview
Heavy duty hydraulic rotary crusher has been used in the industrial sector for a
long time, and it is still widely used in large and medium-sized concentrators and
many industrial sectors. It is mainly suitable for coarse crushing of ore and rock of
various hardnesses (mineral rock with crushing compressive strength not more
than 250MPa).
The rotary crusher is a moving cone which is moved by means of a swivel
movement. The cycle approaches or leaves the fixed cone, so that the material
entering the crushing chamber is continuously crushed by the action of extrusion,
bending and impact, and the crushed material is discharged from the bottom of the
crushing chamber.
2 The representation method of model

Tag instance:
PXZ-1200/160 represents a heavy-duty rotary crusher with a feed opening width of
1200mm and a discharge opening width of 160mm.
3. Basic parameters and structure of the rotary crusher
3.1 Rotary crusher basic parameters
The basic parameters of the heavy duty hydraulic rotary crusher shall comply with
the requirements of Table 1-1.
Table 1-1 Basic parameters of heavy crusher
Model
Feed
port
width
(mm)
Maxi
mum
feed
size
(mm)
Discha
rge
openin
g
width
(mm)
Fractu
re
cone
diame
ter
(mm)
Discharg
e port
adjustm
ent
range
(mm)
Processing
capacity
(t/h)
Motor
Power
(kw)
Weigh
t(t)
PXZ-900/130 900 750 130 1650 130-160 625-770 210 142.3

PXZ-900/170 900 750 170 1650 170-190 815-910 210 141.8
PXZ-1200/160 1200 1000 160 2000 160-190 1250-1480 315/400 231.2
PXZ-1200/210 1200 1000 210 2000 200-220 1560-1720 315/400 228.8
PXZ-1400/170 1400 1200 170 2200 170-200 1750-2060 400/430 309.8
PXZ-1400/220 1400 1200 220 2200 210-230 2160-2370 400/430 309
PXZ-1600/180 1600 1350 180 2500 180-210 2400-2800 320 481
PXZ-1600/230 1600 1350 230 2500 220-240 2800-3200 320 481
Table2-2 Main component weight
Model
Main component weight
Frame beam Middle
frame cone
Eccent
ric
sleeve
trans
missi
on
Origin
al
motio
n
Cylind
er
Most
import
ant
piece
PXZ-900/130 28 29 34 23 4 5 4.6 3.6 24
PXZ-900/170 28 29 34.7 23 4.3 5.1 4.6 3.6 24

PXZ-1200/160 40 39 71 42 6 8 7 6 33
PXZ-1200/210 40 39 70 42 6.2 8.2 7 6 33
PXZ-1400/170 55 56 93 59 8 10 7.5 9 45
PXZ-1400/220 55 56 94 59 8.2 10 7.5 9 45
PXZ-1600/180 66 75 170 89 13 11 8 12 73
PXZ-1600/230 66 75 170 89 13 11 8 12 73
3.2 Rotary crusher structure
The heavy-duty hydraulic rotary crusher consists of a transmission part, a base part,
an eccentric sleeve part, a crushing cone part, a middle frame body, a beam part, a
motive part, a cylinder part, a hydraulic part, a foundation part, a pulley part, a thin
oil lubrication part,dry oil lubrication department, electrical department,etc. Figure
1 is a structural view of the PXZ-1200/160 heavy duty hydraulic rotary crusher.

Figure1 heavy duty hydraulic rotary crusher structure
3.2.1 Transmission components part
The drive shaft is placed across the frame,the pedestal is equipped with a copper
bushing,and the drive shaft rotates in the bushing.The power is transmitted from
the motor to the eccentric sleeve via the V-belt, coupling, drive shaft and bevel
gear (see Figure 2).When the eccentric sleeve rotates, the main shaft is driven to
rotate together with the moving cone pressed thereon, and the center line of the

moving cone rotates along the cone surface trajectory with the fixed suspension
point on the beam as a vertex.
Figure2
3.2.2 Frame part
The frame is the main body of the crusher. The main parts are fixed on the
reinforced concrete or steel foundation with the anchor bolts. The steel bushing is
pressed in the central cylinder of the frame, and the eccentric bushing rotates in the
steel bushing.On the side wall of the machine, there is a hole for inspection, and the
machine is covered with a cover during normal operation.The four rods and the
drive sleeve, which are connected to the central sleeve, are provided with a high
manganese steel shield to prevent the falling ore from smashing the rod and the
center sleeve (see Figure 3).

Figure3
3.2.3 eccentric sleeve part
The eccentric sleeve is inserted into the steel bushing of the center sleeve of the
frame, and the inner surface is full cast but the outer surface is only cast with 3/4
babbitt (or MC nylon) eccentric sleeve rotating in the steel bushing, In order to cast
the babbitt alloy (or MC nylon) (see Figure 4), a dense dovetail groove is machined
on the inner surface of the eccentric sleeve. Three thrust discs are placed between
the center sleeve and the large bevel gear, and the lower disc is made of steel,
which is fixed to the upper end of the center sleeve by a pin to prevent rotation,the
upper disc is made of steel, screwed to the large bevel gear and rotated together
with it,the middle disc is made of copper.

Figure4
3.2.4 crushing cone part
The crushing cone is the main component of the crusher. In order to prevent the
body from being worn, the surface is lined with a replaceable high manganese steel
bush (commonly known as: dental plate). A layer of zinc alloy or epoxy is cast
between the bushing and the body to enhance the strength and fit of the bushing.
The main shaft and the body adopt an interference fit. The bottom end of the main
shaft is fixed with an upper friction disc. The bottom surface of the upper friction
disc is a convex spherical surface, which cooperates with the spherical surface of
the middle friction disc (see Figure 5).
The crushing cone is supported by the bottom hydraulic cylinder, and the upper
part is inserted into the tapered hole bushing of the center hole of the beam. When
the crusher rotates, since the lower end of the tapered sleeve is a tapered surface, it

can meet the requirements of the moving cone swing motion. Due to the action of
the friction disc, the moving cone is rotated, and the direction of rotation in the
idling is the same as the direction of revolution. After feeding the ore, the direction
of rotation is opposite to the direction of revolution.
Figure5
3.2.5 middle frame part
The inside of the middle frame is inlaid with high-manganese steel liner (commonly
known as: dental plate). When installing, the backing plate is installed to ensure the
bonding is firm. The number of the plates can be increased or decreased according
to the actual situation and the spacing should not be higher than the liner (see

Figure 6). The lowermost row of linings is supported on the lower end of the frame
body, and the upper row is inserted into the rim of the upper part of the middle
frame so as to withstand the force generated by the friction when crushing the ore
(the vertical component of the crushing force), After the liner is installed, the
cement is cast (using 500# with a solution of alumina cement and sand in a 1:3
weight configuration).
Figure6
3.2.6 beam part
The beam part mainly provides a support point for the upper end of the main shaft,
and the upper end of the main shaft is inserted into the center hole of the
beam.The moving cone of the hydraulic rotary crusher is supported by the bottom
hydraulic cylinder, and its top support structure is much simpler than the ordinary
suspended rotary crusher. A copper tapered bushing is arranged in the center hole
of the beam, and the upper end of the main shaft is inserted into the tapered hole

of the copper bushing, and the tapered hole of the bushing can meet the
requirement of the taper surface of the main shaft.In order to prevent the beam
from being damaged by the ore, the beam is provided with a high manganese steel
shield (see Figure 7).
Figure7
3.2.7 cylinder part
The cylinder section is mounted at the bottom of the frame and bolted. It supports
the crushing cone and withstands the axial forces of the crusher during
operation.There are three friction discs on the upper part of the cylinder. The upper
friction disc is fixed on the lower end of the main shaft, and the lower friction disc is
fixed on the plunger. The upper friction disc is spherical on the upper surface, and
the lower surface is flat. The upper surface is matched with the upper friction disc
coupled to the bottom end of the main shaft. The lower friction disc is fixedly
connected to the piston and does not rotate, and the middle friction disc rotates
less than the rotation speed of the upper friction disc.The oil-impregnated surface
of the friction disk has a number of oil grooves to lubricate it.The lower part of the
cylinder is sealed by a "YX" type seal and an "O" type seal (see Figure 8). Adjusting

the oil volume of the cylinder can adjust the discharge port of the crusher.
Figure8
3.2.8 Hydraulic part
The hydraulic components consist of a single-stage vane pump, check valve, relief
valve, one-way throttle valve, globe valve, accumulator and oil cylinder, which can
protect the internal inflation pressure of 1.5MPa.The one-way throttle valve acts as
a quick reset action by the iron. Reduce the strong impact of the crusher during
reset.
Before the crusher starts, the pump first fills the cylinder with oil. The oil filling
sequence is: first open the shutoff valve A, close the shutoff valve B, and start the oil
pump (see Figure 9).When the oil pressure reaches approximately 0.8 MPa, the
crushing cone begins to rise, and the pressure of the hydraulic system remains
close to 0.8 MPa. The crusher can start working. After the crusher works, the system

oil pressure can reach 1.1-1.5MPa due to the action of the broken ore.When the
non-crushed material falls into the crushing chamber, the crushing force increases,
the system oil pressure also increases, and the oil in the cylinder is squeezed into
the accumulator (at this time, the oil pressure of the cylinder and the accumulator
pressure are both 1.5- Between 2.1MPa), the discharge opening is enlarged, the
non-crushed material is discharged, and then the crushing cone is slowly reset
automatically due to the action of the accumulator and the one-way throttle
valve.When the size of the non-crushed material is too large to be discharged
through the discharge port, the oil pressure can reach 2.1-2.2 MPa. At this time, the
action can be automatically stopped by the action of the electric contact pressure
gauge.The value of oil pressure change in various conditions of the crusher
depends on the physical properties of the material to be crushed.The above values
are calculated based on the rated power of the motor and may differ from the
actual situation and may be corrected by the user.
When you want to increase or decrease the discharge port, adjust it in the following
order:The discharge port is enlarged,open the shut-off valves B and A to drain the
oil in the cylinder back to the tank, and the crushing cone can be dropped to reach
the required discharge port to close the shut-off valves A and B;the discharge port
is reduced,open the stop valve A, start the oil pump to fill the oil cylinder, the
crushing cone can rise, close the stop valve A and stop the oil pump after reaching
the required discharge port.
Hydraulic system schematic

Figure9
3.2.9 Pulley trolley part
The trolley is used to disassemble the cylinder and consists of pulley, slide rail and
trolley.The moving trolley and the slide rail can be manually moved, and the pulley
can be set on both sides to move by the crane. The position of the pulley is selected
by the user, and the pulley is provided by the user.
3.2.10 Lubrication system
In order to lubricate the friction parts, the crusher is equipped with a special dry oil
lubrication and thin oil lubrication system.
The dry oil lubrication system consists of a manual dry oil pump, oil feeder and oil
filter, which is specially used for bearing lubrication of the center hole of the beam.
The thin oil lubrication system consists of oil pump, cooler, filter, etc., used for
lubrication of the upper friction disc of the lubricating oil cylinder, the inner and
outer parts of the eccentric sleeve, the friction disc of the lower part of the conical
gear, the gear and the transmission bearing.Schematic diagram of the thin oil
station system (see Figure 10), detailed description of the relevant thin oil
lubrication station, refer to the special instructions.
Thin oil station system schematic
○1 thermometer ○2 Monocular mesh filter ○3 Filter pressure controller ○4 Pre-filter

pressure controller ○5Filter pressure gauge
○6 Pre-filtration pressure gauge ○7 Safety relief valve ○8 Oil pump set ○9 Check valve
○10cooling system ○11Cylinder ○12Electric heaters ○13Magnetic mesh filter ○14Cylinder
thermometer ○15 sensor ○16 Temperature Controller ○17 Oil level display ○18 Shut-off
valve
Figure10
3.2.11 electrical part
Our company only acts as the main motor rotor circuit control device. The electric
control of the lubrication system is provided by the lubrication station, but it must
be associated with the main motor. When starting, start the lubricating oil pump
and then start the main motor；when stopping, first stop the main motor and then
stop the lubricating oil pump (for lubricating oil and oil temperature control, please

refer to the lubricating oil station manual).The electric contact pressure gauge of
the hydraulic part is also associated with the main motor, and the upper and lower
limits of the associated oil pressure are determined according to the site conditions.
4.Installation and commissioning of heavy hydraulic crusher
4.1 General Installation Instructions
4.1.1 The basic map is for user's reference only. It is not allowed to directly make
civil construction drawings. The structure, strength and size are determined by the
user according to the specific circumstances. The bosses supporting the bearings
on both sides of the large pulley are limited in thickness due to the conditions, and
attention should be paid to the reinforcement when designing the foundation. The
crusher should be installed on a stable foundation, and the foundation should have
sufficient discharge platform to prevent the ore from accumulating under the
broken cone.
4.1.2 The installation and maintenance of the crusher shall have corresponding
lifting facilities. The capacity of the selected lifting facilities can be referred to Table
2-2.
4.1.3 Dust and protective coatings on all parts and components shall be removed
prior to installation and all defects arising during transportation shall be eliminated.
4.1.4 All contact surfaces of the parts must be lubricated (except the dental plates)
during installation. The fixed surface is coated with dry oil and the moving surface
is coated with thin oil.
4.1.5 When installing, pay attention to protect the friction surface, do not let dust
and dirt fall on it, do not use unclean oil and dirty cotton yarn. Cover with
protective panels and clean canvas in areas that are easily soiled
4.1.6 Installation shall be carried out in accordance with the technical requirements
on the general drawing and the parts drawing.

4.2 Installation of the transmission section
4.2.1 When installing the drive shaft, add an appropriate amount of adjustment
washers at the joint of the flange of the drive frame body and the base to adjust the
position of the pinion. If the drive frame body is removed from the base, the three
screws on the drive frame body can be turned (see Figure 11 below);
4.2.2 The clearance between the bearing base and the foundation should be no less
than 30mm for secondary cementing，when the cement is dry, remove the wedge
iron and fill it with cement.
4.2.3 Rolling bearings must be cleaned with clean gasoline before installation, then
apply dry oil.
4.2.4 When installing, pay attention to adjust the axial clearance of the pinion drive,
the value is in the range of 0.5-1mm, and then press it with the thrust ring.
4.2.5 The center of the two shafts connected by the coupling should not be greater
than 0.15mm, and the limit of the shaft should not exceed 1mm in length of 1m.
Figure11
4.3 installation of the Frame
4.3.1 The frame of the crusher must be installed on a horizontal concrete
foundation and fixed with anchor bolts. When installing, pay attention to the

vertical position of the frame. Use a spirit level to check whether it is vertical (see
Figure 12).
4.3.2 There should be appropriate clearance between the frame and the base for
secondary grouting and careful alignment with metal wedges.
4.3.3 When the grouting layer is solidified, remove the adjusting wedge iron from
the bottom of the base, and fill the gap with cement slurry, and tighten the anchor
bolt again.
Figure12
4.4 Installation of eccentric sleeve
4.4.1 Special care should be taken when installing the eccentric sleeve to protect
the cast babbitt friction surface to prevent damage and soiling.In addition, the
gasket should be padded, the dirt in the oil drain should be removed, and all the
screws should be tightened and pinted to the coil.
4.4.2 The adjusting gasket should be placed on the end face of the inner bore of the
frame before installation, and the impact phenomenon should be prevented, and
the installation situation (see Figure 13 below).

4.4.3 When installing, try to ensure that the big end of the tooth is flush, and also
ensure that the intermediate side gap of the bevel gear meshing after installation is
within the range of 1.65-2.68mm.
4.4.4 The gap between the eccentric sleeve and the protective cover is 10mm, and
the deviation is controlled within the range of 10±2mm.
4.4.5 The upper end of the oblique key for fixing the large bevel gear should not be
higher than the upper end surface of the eccentric sleeve.
4.4.6 The eccentric direction of the eccentric sleeve should be consistent with the
direction of the cylinder friction disc.
4.5 Installation of broken cone
4.5.1 The broken wall of the broken cone must be locked with a locking nut. To
prevent rust and disassembly before locking, dry oil should be applied to the lower
space of the pressure plate and the matching thread.

4.5.2 In order to ensure the spherical seal lubrication at the bottom of the cone, the
upper space of the spherical seal should be filled with dry oil before installation.
4.5.3 Use a special lifting ring to hang the crushing cone from the special pit into
the frame of the machine and place it on the cylinder. Then wedge the wooden
wedge in the middle frame and the base, and then install the beam.
4.6 Installation of the middle frame body
4.6.1 When installing the middle frame, the flange clearance on the frame part must
be corrected according to the flange on the base part (nominal value is 15mm). The
mutual deviation of the nominal value shall not exceed 0.4 mm at any point on the
entire circumference.
4.6.2 The cement mortar used for watering the fixed lining shall be carried out in
accordance with the technical requirements listed in the assembly drawing of the
middle frame. Test or work normally only after the cement is completely fixed.
4.6.3 Wedging the backing plates of each section of the lining, the number and size
can be changed according to the actual situation.
4.6.4 The fixing screws on each flange shall be locked once again after the load test
of the machine, and the force on each screw on the circumference shall be uniform.
4.7 Installation of the beam
4.7.1 Remove all dirt on the oil hole and processing surface before installation.
4.7.2 The beam is installed on the middle frame, and the flange between the middle
frame and the beam is calibrated and then tightened with fixing screws, so that the
gap deviation between the beam and the upper flange of the middle frame should
not exceed 0.4mm at any point on the entire circumference.
4.7.3 Fill the center hole of the beam with porridge-like lubricating oil (mixed of thin
oil and dry oil), and then install the top hat of the beam.
4.8 Installation of the motive part
4.8.1 When installing the slide, the adjustment mechanism should be installed

outside to facilitate adjustment.
4.8.2 The V-belt transmission device shall be equipped with protective devices
according to the specific conditions to ensure the safety of work. The cover is
provided by the user.
4.9 Installation of the cylinder section
4.9.1 The cylinder is transported from the trench to the lower part of the base by
the pulley. When installing the cylinder, the cylinder can be lifted slowly with the
screw, or the cylinder can be lifted by the crane.
4.9.2 Lubrication and hydraulic oil pipes should be properly protected from ore and
the protection facilities should be solved by the users themselves.
5. Machine debugging
5.1 After the machine is installed, the motor with the same working speed and the
lubrication station with similar performance shall be continuously tested for
no-load test of not less than 4 hours. When the number of rotation cones is
qualified and the oil return temperature is stable for more than 0.5 hours, the
empty load test can be shortened, but should not be less than 2 hours.
5.2 The idling test shall meet the following requirements:
5.2.1 The broken cone swings smoothly
5.2.2 Bevel gear transmission has no periodic noise
5.2.3 Lubricating oil pressure is 0.1-0.2MPa, returned oil temperature does not
exceed 50 °C
5.2.4 The hydraulic system is flexible and has no oil leakage.
5.3 After the idling test, the friction parts of the crusher should be disassembled
and inspected, and burns and abrasions are not allowed.
5.4 Load test should meet the following requirements:
5.4.1 After the idling test is qualified, the load test can be carried out.
5.4.2 When test with loading, first add a small amount of ore and then increase to
full load.

5.4.3 No abnormal change in main motor current
5.4.4 The crusher has no obvious vibration
5.4.5 Normal feeding and discharging,Production is similar to the specified value
5.4.6 The hydraulic system works normally and there is no oil leakage.
6. Operation and maintenance of heavy hydraulic rotary
crusher
6.1 Preparation and inspection before starting
After the crusher is installed and overhauled, it must pass the test run. Check the
following before starting:
6.1.1 Check that there are no temporary auxiliary facilities, tools, etc. in the interior
and the surrounding of the crusher. There are no ore and foreign matter in the
crushing chamber, and the discharge port is unblocked.
6.1.2 Check the bolt fastening conditions of each part
6.1.3 Confirm that the tubing under the crusher is well protected
6.1.4 Motor rotation direction meets the requirements
6.1.5 The pressure switch, flow switch, temperature switch and other instruments
and instruments on the lubrication pipe meet the requirements.
6.1.6 Transmission adjustment meets requirements
6.1.7 Cooling water is connected and can cool down
6.1.8 Lubricating oil in the cylinder meets the requirements
6.1.9 Test the hydraulic system, discharge the air in the system, raise the moving
cone to the working position, and the system has no oil leakage.
6.1.10 When the oil temperature is higher than 20 °C, start the oil pump to check
the working condition of the lubrication system; the pressure and flow rate meet
the design requirements, and the system has no oil leakage.
6.1.12 Test dry oil lubrication system, work normally
6.1.13 Turn the drive shaft 2-3 turns to confirm that there is no jamming
6.2 Startup sequence

6.2.1 First open the conveyor under the crusher
6.2.2 Start the lubrication pump according to the requirements of the lubrication
system. The oil temperature, the pressure difference between the two ends of the
filter and the oil pressure should meet the design requirements.
6.2.3 Start the dry oil lubrication system, work normally, the oil supply pressure and
working pressure of the oil station should meet the design requirements.
6.2.4 The moving cone is raised to the working position, and the pressure in the
cylinder is 0.8MPa.
6.2.5 Wait for the auxiliary motor to run for 2-3 minutes. After everything is normal,
start the main motor.
6.3 Empty load test requirements
6.3.1 The broken cone swing should be stable, and the number of rotation should
not exceed 15r/min.
6.3.2 After the crusher is assembled, when the empty load test is carried out at the
manufacturing plant, the motor with the same working speed and the lubrication
station with similar performance shall be continuously tested for the empty load
not less than 4 hours.
6.3.3 Bevel gears are not allowed to have periodic noise
6.3.4 Check the lubrication system for oil leakage. It is easy to leak oil at the drive
shaft. If oil leakage is found, check whether the oil flow is too large. If it is too large,
adjust the oil consumption, but not less than the minimum oil flow setting.
6.3.5 Lubricating oil supply pressure should be in the range of 0.1-0.3MPa, ambient
temperature should not exceed 45 °C, return oil temperature should not exceed
50 °C
6.3.6 Check if the dry oil lubrication system works normally
6.3.7 Check the hydraulic cylinder section without oil leakage
6.3.8 Check the cooling system and keep the cooling water pressure below 0.05MPa
to prevent water from entering the lubricating oil.

6.3.9 Alarm, interlock and control circuit meet the design requirements, and all
instruments work normally.
6.4 load test requirements
6.4.1 After the air load test is passed, the load test can be carried out, and the load
test run is carried out on the user side.
6.4.2 When loading the test, add a small amount of ore and gradually increase to
full load,half loading time should not be less than 3 hours
6.4.3 No abnormal change in main motor current
6.4.4 The crusher has no obvious vibration
6.4.5 The pressure in the cylinder is 1.5-2.1MPa
6.4.6 Lubricating oil supply pressure should be in the range of 0.1-0.3MPa, ambient
temperature should not exceed 45 °C, return oil temperature should not exceed
60 °C
6.4.7 Lubrication system, cooling system, etc. work normally
6.5 crusher operation precautions
After the rotary crusher enters the normal crushing work, the following items must
be observed during operation:
6.5.1 Check the operation, there should be no abnormal knocking sound inside the
crusher, and stop the operation immediately in special circumstances. The size of
the ore should not be more than 0.8 times that of the ore supply. The lower part of
the discharge chute and the broken cone should not be blocked by the ore.
6.5.2 Pay attention to the operation of the oil pump, and always check the oil flow
indicator, the oil temperature and the oil pressure indication. The temperature of
the oil after passing through the cooler should not be higher than 45-53 °C, and
the return oil temperature should not be higher than 60 °C.
6.5.3 Pay attention to check the tightness of the V-belt. Use the thumb to press the

V-belt to measure the tension. If the pressure is not more than 1.5cm, the tension is
appropriate(The measurement must be carried out in the shutdown state). Check
for cracks and pay attention to the triangle belt not to stick oil
6.5.4 It should be checked frequently whether the connecting pin between the
beam, the middle frame and the base is loose and the gap is 15mm along the
circumference.
6.5.5 Check the lining of each part for looseness, lack of or severe wear
6.5.6 Strictly check the feeding conditions to prevent metal objects such as
hammers and bits from entering the crushing chamber.
6.5.7 An accident occurs during operation. For example, if the chute is blocked by
ore, the oil is stopped or the oil temperature exceeds 60 °C and the bevel gear has
a knocking sound. It should be processed immediately according to the prescribed
procedures.
6.6 Cleaning of the crushing chamber
If the machine is stopped due to power failure, etc., the material is stuck in the
crushing chamber. Before starting, the crushing chamber can be cleaned according
to the following steps.
6.6.1 Open the conveyor under the crusher according to the start-up procedure
6.6.2 Carry out the necessary inspection of the crusher according to the start-up
procedure, and then turn on the lubricating oil pump, dust-proof fan and other
auxiliary machines.
6.6.3 Adjusting the moving cone to increase the discharge opening
6.6.4 Start the main motor while adjusting the falling of the moving cone(When the
moving cone drops about 20mm or more).
6.6.5 After cleaning, start the oil pump of the hydraulic system and re-adjust the
discharge port.
6.7 Shutdown sequence

The sequence of downtime under normal conditions is as follows:
Issue a stop command or signal
Stop giving ore
Stop the main motor when there is no ore in the cavity to be crushed.
Stop lubricating oil pump
Stop dry station air compressor
Shut down cooling water
6.8 Lubrication and hydraulics
6.8.1 Lubricating thin oil: It is best to choose the ambient temperature. It is
recommended to use mechanical oil No. 68-100, and change the oil once every
6-12 months.
6.8.2 Hydraulic oil: Generally, No. 20 mechanical oil and No. 20 ordinary hydraulic
oil are used.

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