How to Maintain a Stone Bridge Saw ?

This manual contains the maintenance required for the proper use of Stone Bridge Saw.

 

This instruction manual has been prepared in accordance with the instructions set forth in the relevant directives in force to ensure that the topics covered in this manual are correctly understood by operators authorized to use and maintain the machine. Compliance with the instructions in this manual will protect the operator from injury.

 

Linhai Zhongli Machinery Manufacturing Co., Ltd. can ensure timely and accurate technical assistance in any situation for optimal operation and maximum machine performance.

 

 

Danger: Failure to follow the safety instructions on the machine and the instructions below may result in death or serious injury, damage to materials or equipment, and Linhai Zhongli Machinery Manufacturing Co., Ltd. does not assume any responsibility.

 

Danger: An additional operator must supervise the control panel during maintenance operations to prevent the machine from starting during maintenance. Operators must also monitor the machine in order to sound an alarm in the event of an accident or dangerous situation.

 

Danger: During maintenance operations, a "Machine is under repair" sign must be flown in an area where the machine is clearly visible.

 

Danger: Normal or special maintenance operations must be performed with the machine turned off, without electrical, hydraulic, and pneumatic power sources, and with the E-STOP button pressed.

 

Danger: All maintenance operations must be carried out in accordance with the following procedure: The operator/maintenance technician must set the machine to "Enter Danger Zone" mode, position the machine in a specific area, press the emergency button on the control panel, turn off the machine (follow the steps shown in Section B of the Instructions for Use manual), turn the switch to the "0" position, and cut off the power strip.

 

Danger: Before performing maintenance work on hydraulic and pneumatic systems, make sure that the pressure inside them has been relieved:

●The tilt plate support table is equipped with an anti-fall valve, which can keep the lifting cylinder under pressure when the pressure of the hydraulic system is lost, preventing the bench from falling. In order to release the pressure in the cylinder, the table needs to be lowered with the machine open.

 

Danger: After disconnecting the power supply, wait at least 10 minutes before turning on the machine's switchboard to allow the residual electrical energy stored in the inverter's capacitors to be released.

 

Danger: Wait for it to stop completely and all residual heat has dissipated before performing any maintenance on the cutting disc.

 

Danger: After any maintenance work is over, before restarting the machine, make sure that:

● The machine has been cleared of tools, spare parts and materials for maintenance

●All safety devices are correctly positioned and in perfect working condition (protective barriers, safety guards)

 

WARNING: Before any intervention is made, the operator and/or maintenance technician must be fully aware of the location and operation of all controls and the characteristics of the machine; He/she must also read, understand, and assimilate the contents of this User and Maintenance Manual in its entirety.

 

ATTENTION: Only the original spare parts provided by Linhai Zhongli Machinery Manufacturing Co., Ltd. are used

 

ATTENTION: It is strictly forbidden to carry out welding work directly on the machine.

 

WARNING: All routine maintenance operations must be performed by qualified personnel trained in machine operation.

 

WARNING: All special maintenance operations must be performed exclusively by the technicians of Linhai Zhongli Machinery Manufacturing Co., Ltd

 

Warning: Observe the specified time interval at which all maintenance operations are performed.

 

 

Before performing electrical maintenance, switch the main switch to the "0-OFF" position and pull out the clip to the groove.

Danger: Electrical service technicians must ensure that snap snaps are in place throughout the repair operation.

 

Serial Number	Frequency	Description	Type of Repair	Chapter I
1	When necessary	Change tools	routine	8.4.1
2	Refer to the manufacturer's manual	Maintenance of motor spindles	routine	8.4.2
1	Every day	Clean regularly	routine	8.4.3
2	Every 16 hours Job	Test the emergency stop circuit	routine	8.4.4
3	weekly	Check the polycarbonate protective barrier	routine	8.4.5
4	monthly	Maintain the vacuum system	routine	8.4.6
5	Every 160 hours worked	Test the operating mode optical signal	routine	8.4.7
6	Every 300 hours worked	Lubricate the MOVE system rails	routine	8.4.8.1
7		Linear guide for the side spindle on the lubrication side (if available)	routine	8.4.8.4
8	1 time per week	Check the lubricating oil in the automatic lubrication system	routine	8.4.8.5
9	Every 6 months	Apply grease to the joints of the tilting table	routine	8.4.8.6
10		Lubricate the console arm joints	routine	8.4.8.7
11	Per 1000 A few hours of work	Inspect the pipes and Connection of the hydraulic system	routine	8.4.9
12	Every 2000 hours worked	Change the hydraulic control unit oil	routine	8.4.10
13		Clean the filters of the vents of the electrical panels	routine	8.4.12
14		Maintenance of compressed air inlet units	routine	8.4.13

 

 

5.1 MAINTENANCE--REPLACEMENT OF TOOLS 

DANGER: Worn tools can pose a danger to people and property. It is the purchaser's responsibility to assess the wear and tear of the tools and replace them if necessary.

To replace a tool mounted on a spindle, follow the instructions described in 7.8 - Changing the CD.

 

 

5.2 MAINTENANCE--ELECTRIC SPINDLE

Authorizer	Mechanical Maintenance Technician
Frequency	Refer to the manufacturer's manual
Safety requirements	Please operate with the machine turned off, without power, and with the emergency stop button pressed. After disconnecting the power supply, wait at least 10 minutes before operating the machine. (See manufacturer's use and maintenance manual)
Personal Protective Equipment (Required)

 

 

5.3 MAINTENANCE--ROUTINE CLEANING

Authorizer	Responsible for the operator
Frequency	Every day
Safety requirements	Please operate with the machine turned off, without power, and with the emergency stop button pressed. After disconnecting the power supply, wait at least 10 minutes before operating the machine. (See manufacturer's user and maintenance manual)
Personal Protective Equipment (Required)

Cleaning the machine is essential to work safely and extend its lifespan. Always keep the following clean:

1. Flooring around the machine and workbench

2. Disc protective case and tool refrigeration device

3. Control Panel

4. The surface of the laser is marked by the cutting of the emitted beam

5. Warning signs warn of dangers and obligations

6. Cable bracket chain support plate

7. Surface of the light curtain (if present)

 

Danger: It is absolutely forbidden to use water jets to clean electrical panels.

For regular cleaning:

- Do not use abrasives or strong alkaline cleaners.

- Do not use wipers, scrapers, or other sharp tools.

- Do not use products that contain alcohol.

-Do not use solvents.

 

 

5.4 MAINTENANCE--TESTING THE EMERGENCY STOP CIRCUIT

Authorizer	Mechanical Maintenance Technician
Frequency	Every 16 hours worked
Safety requirements	Before intervening, check that there are no people, materials, or equipment on the machine.
Personal Protective Equipment (Required)

When the machine is turned on and set to "Enter Danger Zone" mode (see Section 7.5.1 - "Enter Danger Zone" mode) Press the emergency stop button and check:

● An "Emergency Start" message is displayed on the control panel monitor.

● The red part of the stack indicator on the control panel lights up.

● When any movement is made to either axis of the machine via the hold run lever located on the control panel (see Part B of the manual), no movement occurs inside the machine.

Resume machine operation as described in 3.6.3 - Emergency Stop Button - button and check:

● The "Emergency Start" message disappears from the control panel display.

● The red light signal area on the control panel is turned off.

●When any movement is made to one axis of the machine by means of a hold run lever located on the control panel (see Part B of the manual), the relative movement is carried out inside the machine.

 

 

5.5 MAINTENANCE--CHECKING THE POLYCARBONATE PROTECTION BARREIERS

 

Authorizer	Responsible for the operator
frequency	weekly
Safety requirements	Please operate with the machine turned off, without power, and with the emergency stop button pressed. After disconnecting the power supply, wait at least 10 minutes before operating the machine. (See manufacturer's user and maintenance manual)
Personal Protective Equipment (Required)

 

Check the integrity of the polycarbonate protective barrier. If there is damage, breakage, or any signs of cracking, please contact Linhai Zhongli Machinery Manufacturing Co., Ltd. to replace the damaged or damaged parts.

 

5.6 MAINTENANCE--LUBRICATION 

 

ATTENTION: Goggles and gloves must be used when lubricating, filling oil and grease, and maintaining hydraulic circuits to avoid direct contact with these substances.

ATTENTION: It is not recommended to mix oils and fats with different characteristics during the above operation

The following types of lubrication are used on the machine:

●Grease lubrication using automatic lubrication device and manual lubrication

 

Authorizer	Responsible for the operator
Frequency	1 time per week
Safety requirements	Operate with the machine turned off, without power, hydraulics and pneumatic supplies, and with the emergency stop button pressed. After disconnecting the power supply, wait at least 10 minutes before operating the machine. (See manufacturer's user and maintenance manual)
Personal Protective Equipment (Required)

 

The automatic lubrication system consists of an automatic control unit as shown below which will lubricate the connected equipment according to the predetermined time.

The tank must be filled with the necessary grease, but not more than the indicated maximum level.

Check the grease level in the tank at least weekly and top it up as described below.

Note: An on-screen alarm warns the operator when the grease level is at its lowest The level in the tank must therefore be topped up.

 

• CHECK THE PIPES AND CONNECTIONS OF THE HYDRAULIC SYSTEM

Authorizer	Mechanical-hydraulic-pneumatic maintenance operator
Frequency	Every 1000 hours worked
Safety requirements	Operate with the machine turned off, without power, hydraulics and pneumatic supplies, and with the emergency stop button pressed. After disconnecting the power supply, wait at least 10 minutes before operating the machine. (See manufacturer's user and maintenance manual)
Personal Protective Equipment (Required)

 

Inspect the wear status of the pipes of the hydraulic system, taking care to identify and locate any points of deterioration or damage to the pipes or fittings, as well as any oil leaks from the system.

In particular, inspect for any of the following signs of deterioration or damage:

● The connection slides out of the pipe

● The covering has been damaged, cut, or scraped off

● The tube has been hardened or burned

●Cracked, damaged, and/or corroded connections

● Fluid leakage from connections or pipes

●Abnormal shrinkage or cracks in the pipeline, or abnormal flattening or twisting of the pipeline

●The outer sheath is damaged, deteriorated, or loose

If any of the above conditions exist, please contact Linhai Zhongli Machinery Manufacturing Co., Ltd. to replace the damaged or deteriorated parts of the system.

 

 

• CHANGE THE OIL OF THE HYDRAULIC CONTROL UNIT

 

Authorizer	Responsible for the operator
Frequency	Every 2000 hours worked
Safety requirements	Operate with the machine turned off, without power, hydraulics and pneumatic supplies, and with the emergency stop button pressed. After disconnecting the power supply, wait at least 10 minutes before operating the machine.
Personal Protective Equipment (Required)

 

In general, the oil must be changed at least every 2000 hours; The tank must be thoroughly cleaned when it is replaced.

The fluid must be introduced into the tank through a 10 micron mesh filter at the fill cap location. As picture below.

 

 

Tabletop hydraulic control unit

A	Refill the filler cap
B	Drain screw plug
C	fuel tank

 

 

• LUBRICATION POINTS

Point of sale.	description	Type of lubricant
1	Tilting table Hydraulic control unit	46# Hydraulic oil Quantity: about 30 liters Replacement: Every 2000 hours of operation
2	Tilt the table lifting cylinder movable joint	Total MULTIS EP1 Grease Quantity: 1 cm3 Frequency: Every 6 months
3	Automatic lubrication system	68# rail oil (Automatic refueling) Check lubricant levels frequently: once a week
4	Console arm joints	TOTAL MULTIS EP1 Grease Quantity: 1 cm3 Frequency: Every 300 hours of operation

 

 

5.7 MAINTENANCE--CLEANING THE FILTERS OF THE AIR VENTS OF THE ELECTRICAL PANEL

Authorizer	Electrical Service Technician
frequency	Every 2000 hours worked
Safety requirements	Operate with the machine turned off, without power, hydraulics and pneumatic supplies, and with the emergency stop button pressed. After disconnecting the power supply, wait at least 10 minutes before operating the machine.
Personal Protective Equipment (Required)

● Turn the main switch to position "0", open the electrical panel, and lock it with a padlock.

●Remove the cover of the cooling fan from the inside of the electrical panel door as shown in the figure below.

Vents on the electrical panels

 

● Remove the filter and clean or replace it with compressed air.

● Put the filter and lid back in their original position.

● Close the electrical panel, remove the lock of the main switch and rotate it to position. "1"

 

 

• 5.8 MAINTAINING--THE COMPRESSED AIR INLET UNIT

 

Authorizer	operator
frequency	Every 2000 hours worked
Safety requirements	Before proceeding to clean the filter, use the shut-off valve of the air unit to depressurize the system and then lock it with padlocks. (See manufacturer's user and maintenance manual)
Personal Protective Equipment (Required)

• 5.9 OTHER MAINTENANCE

Special maintenance operations can only be performed by qualified personnel or professional and technical personnel of Linhai Zhongli Machinery Manufacturing Co., Ltd.

 

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