• OBJECTIVE:

To describe a procedure for the preventive maintenance of Lift Machines.

• SCOPE:

This SOP is applicable for preventive maintenance of Lift Machines

• RESPONSIBILITY:

Assistant Engineer/Above shall be responsible for implementation and compliance of this SOP.

• ACCOUNTABILITY:

Manager – Engineering / Manager – Production / Head   – QA shall be accountable for implementation and compliance the procedure mentioned in this SOP.

• ATTACHMENTS:

Preventive Maintenance Checklist of Lift Machines                                        -Attachment-I

• PROCEDURE:
  • Preparation of preventive maintenance plan:
    • Inform the concern person before starting preventive maintenance.
    • Ensure that no activities are carried out in the respective machine.
    • Ensure that the respective system electrical supply is switched “OFF”
    • Before carrying out the preventive maintenance display status board as “UNDER PREVENTIVE MAINTENANCE” on the electrical panel and machine.
  • FREQUENCY:

Half-Yearly.

• CHECKLIST:
• Mechanical Lift:
  • Check electrical terminals of main panel and tight them.
  • Check the oil level in gear box and top up if required.
  • Check the V belt for any wear and tear.
  • Check the nut & bolts of rope on ceiling for proper tightness.
  • Check for the proper door alignment and sliding mechanism.
  • Check the door lock system for proper operation.
  • Check limit switches of each floor for proper working.
  • Start and run the machine in Auto/Manual mode.

6.4.10   Check and observe the machine for its normal working.

6.5        Hydraulic Lift:

6.5.1    Check all the electrical terminals of main panel and tight them.

6.5.2    Check fluid power pack for oil level and leakages.

6.5.3    Check hydraulic cylinders for any wear and tear and leakages.

6.5.4    Check hydraulic hoses for any leakages and tight them.

6.5.5    Check doors on each floor for proper closing.

6.5.6    Check limit switches of each floor for proper working.

6.5.7    Check call or push buttons of each floor for proper working.

6.5.8    Start and run the machine in Auto/Manual mode.

• Check and observe the machine for its normal working.

• After completion of above procedure remove the “UNDER PREVENTIVE MAINTENANCE”

status board from the machine and the respective electrical panel.

• Affix the Preventive Maintenance Status on machine as per Attachment– I SOP/EN/OO3
• Update the status label of the machine after the completion of preventive maintenance.
• After performing the preventive maintenance activity of machine, respective area supervisor shall check and note the details on respective Equipment sequential Log Book.
• Junior Engineer / above shall update the activity in respective formats of SOP for Lift (SOP/EN/080).

 REFERENCES:

In-house

• ABBREVIATIONS:

SOP    : Standard Operating Procedure

Engg.   : Engineering

• DISTRIBUTION LIST:

Quality Assurance

Production

Engineering

 

10.0      HISTORY OF REVISION:

Version No.	Effective Date	Reason for Revision

 Attachment-I

Preventive Maintenance Checklist of Lift Machines

Area:

ID No:                                                                                                                                            Date:

Frequency:

Sr. No.	Particulars	Status
Mechanical Lift:
	Check electrical terminals of main panel and tight them.
	Check the oil level in gear box and top up if required.
	Check the V belt for any wear and tear.
	Check the nut & bolts of rope on ceiling for proper tightness.
	Check for the proper door alignment and sliding mechanism.
	Check for the proper door alignment and sliding mechanism.
	Check limit switches of each floor for proper working.
	Start and run the machine in Auto/Manual mode.
	Check and observe the machine for its normal working.
Hydraulic Lift:
1.	Check all the electrical terminals of main panel and tight them.
2.	Check fluid power pack for oil level and leakages.
3.	Check hydraulic cylinders for any wear and tear and leakages.
4.	Check hydraulic hoses for any leakages and tight them.
5.	Check doors on each floor for proper closing.
6.	Check limit switches of each floor for proper working.
7.	Check call or push buttons of each floor for proper working.
8.	Start and run the machine in Auto/Manual mode.
9.	Check and observe the machine for its normal working.