OTIS presentation

[Audio] Welcome to the supplement of the Global Escalator Maintenance Training Program or G.E.M.P. This lesson focuses on lubrication of escalator when there is no automatic lubrication system in place. If a lubrication system is present it is the expectation that these systems will be used as a first priority..

[Audio] Lubrication is one of the main causes of hand entrapments on Escalators. The purpose of this lesson is to make you aware of the lubrication methods that will eliminate the potential hand entrapments associated with lubrication. In this lesson, you will learn about the dangers of hand entrapments, the lubrication tools needed to prevent entrapments. These tools should be used globally and align with the intent and application of the Otis Cardinal Rules, developed by mechanics, to keep you safe. It is important to recognize that the decisions made in the field will determine the risks for hand entrapments, and the control of these potential risks are in Your Hands..

[Audio] Why are we so concerned about Hand Entrapments? In recent years, many mechanics have been seriously injured due to hand entrapments from situations which could have been avoided. It is critical to understand and follow the standard work procedures and to ensure you have the proper tools before you start working on any escalator..

[Audio] As you can see by the graph, unfortunately we continue to experience serious hand entrapment injuries each year. Lubrication and cleaning are root cause activities associated with many of these tragic injuries. It is important that we use the proper tooling and apply the cardinal rules for proximity when they are appropriate. If you have any question or doubts, stop work and contact your supervisor before you begin work..

[Audio] We must do everything we can to reverse this trend for hand entrapment injuries and, ensure that you and every mechanic return home safely every day. Let’s take a closer look at the tools and methods needed to safely lubricate the Main drive chain, Handrail drive chain and step chain on escalators..

[Audio] The Cardinal rule for proximity has been around for a long time. It is required to Always maintain a safe working distance and minimum of 1.5 meters or 5 feet from unguarded moving parts. This means, Never lubricate chains while equipment is on normal operation, unless all moving parts are guarded and a lubricator with long nozzle is used. Never work in close proximity to unguarded rotating equipment. STOP WORK and contact your supervisor to arrange for the correct tooling. Always ensure that lubricators with long reach nozzles are used. Always ensure that sheave guards are fitted to exposed rotating equipment or otherwise protected. equipment.

[Audio] Let’s look at a short video on how a mechanic fills a spray tank used for lubrication, how the mechanic checks the oil color to ensure proper viscosity and, how to check the oil type to ensure the proper lubricant is used..

[Audio] Only use the oil specified by the manufacturer. Consult the field technical documentation for the equipment if unsure. The proper oil will be identified by the Otis oil number and typically identified as Oil number 39..

[Audio] Always Ensure that the lubrication system is clean. No-one likes to cleanup excessive oil spillage, so simply use the spray tool and use oils sparingly to avoid excess oil drippage and, avoid making a mess..

[Audio] The condition check for the Main Drive Chain and Broken Chain Device is further described in Standard Work: F.S.I B07I Zero, Zero one It should take one mechanic about 30 minutes to complete this work and it should be performed every six months for heavy duty units or annually for commercial units. Personal Protective Equipment is required including safety shoes, hard hat, gloves and safety glasses. Special tooling for this work includes, the Chain Go and No-Go gauge and, a lubrication spray tool along with a long-handled brush are both needed to complete this work..

[Audio] The noted standard work describes the Lubrication requirements for the chain and links. If an automatic lubrication system is on the unit, it must be used to lubricate the main drive chain. Manual lubrication of the main drive chain is only permissible if no automatic lubricator is installed on the unit. A spray with a long reach nozzle, similar to the one shown here must be used to manually lubricate the chain..

[Audio] Let’s watch a video of a mechanic lubricating the main drive chain..

[Audio] Handrail Drive Inspections are described under Standard Work F.S.I E061 Zero, Zero one. It will take one mechanic 25 minutes to complete the inspection on Heavy Duty escalators and 15 minutes on Commercial escalators. Heavy Duty escalators should have a handrail drive inspection every six months where Commercial escalators should be inspected annually. Lubrication should be performed more frequently as needed. The personal protective equipment required includes safety shoes, hard hat, gloves and safety glasses. A chain elongation gauge and a long reach spray tool are required to perform this work effectively..

[Audio] Handrail drive chains must be lubricated and kept clean. The handrail chain cover and oil drip pan should be cleaned after performing a lock-out-tag-out on the escalator..

[Audio] When using the lubrication spray tool, use the pendent controls or jog circuit to access the drive chains and always ensure the correct oil is used. Always apply lock-out-tag-out when power is not needed, Never lubricate handrail drive chains on normal operation. And never position body parts near moving or unguarded equipment..

[Audio] Let’s look at a short video of a mechanic lubricating the handrail drive chain..

[Audio] Step Chain lubrication is described in Standard work F.S.I F13L, Zero, Zero one. It will take one mechanic 10 minutes to complete this work and Step chain lubrication should be performed every 6 months or as needed. The personal protective equipment required includes safety shoes, hard hat, gloves and safety glasses. A Step Gauge will be required to perform this work effectively..

[Audio] Inspect the step chain condition by first performing a Lock-out-tag-out of the escalator. If any rouging is identified, manually apply lubrication using the required spray tool with a long reach nozzle. The manual application of lubrication is only permissible if no automatic lubricator is installed or if any rouging is identified. Remember to always use pendent controls or a jog circuit to move the escalator, apply Locks and tags when power is not required and Never lubricate drive chains on normal. Most importantly, Never position your body parts near moving or unguarded equipment..

[Audio] Let’s look at a short video of the Step chain lubrication.