Staging Technical Materials

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What If I Need To Choose A Chain Hoist Control System? - Part 3

Staging What If

January 2013

In the last issue, we looked at multi-point lifting of a truss using 4 chain hoists, and the basic safety requirements for controls when using high safety specification, low performance fixed speed hoists, covering service limits, emergency limits, overloads, underloads and the concept of a “group-stop”. In this issue, we’ll look at synchronous operation, with position and speed management..

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What If Someone Insists That Your Rope Is Too Small?

Staging What If

September 2013

To the point of the article, just recently, prior to installing some machines in venue “X”, a well meaning and highly experienced rigger pointed out to us that said machines could not be used for an overhead lift, because they were designed to use 3mm steel wire rope. "Why not?"

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What If I Need To Choose A Chain Hoist Control System? - Part 1

Staging What If

October 2012

In this article, we’ll look at the requirements for controllers when performing simple lifts with chain hoists – either a single point lift, or a 2 point lift with a horizontal (not tilted) straight truss.

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What If There Is A Risk Or Hazard?

Staging What If

September 2012

In past articles, I’ve banged on and on about “and of course you’ve done your Risk Assessment so you’re well informed about what you are dealing with” but it would seem that the concept of Hazard and Risk Assessments, while familiar generally to most of us, is a little misunderstood, and is a “grey” area at best.

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Flying Multi-Wire Battens With A Limited Budget

October 2010

Single wire-rope load-brake winches are sometimes used to fly multi-wire battens where budgets are tight and options are severely limited. Is this best practice, what are the risks, what is legal? Jands Staging tell all to CX Magazine.

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What If We’re Lifting a Load with More than 2 Chain Motors?

Staging What If

September 2014

The issue of whether or not we need to use load measurement with chain hoists has been coming up quite a bit recently, so now seems to be as good a time as any to open up that particular can of worms.

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What If We Don’t Maintain and Inspect Our Chain Hoist?

Staging What If

November 2014

What very often gets overlooked however, is the fact that all of these Standards or Codes of Practice have specific requirements for the routine inspection, servicing and maintenance of the machinery, and adhering to this inspection and maintenance regime is a requirement for the continued compliance of the hoist.

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What If There Were One Set Of Rules For Motorised Chain Hoists?

Staging What If

May 2012

Let’s look at what is involved in selecting an appropriate motorised chain hoist and controller for use in Australia, and how you can discharge your obligation to provide a safe working environment for the crew who are working the show and a safe venue for the unsuspecting throng who are attending the show in absolute faith that “they” know what they’re doing, so it must be safe to be here...

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What If I Need Stage Lighting Circuits With A Shared Neutral?

Staging What If

October 2011

This question came up late last year when one of our lighting geeks was trying to commission a dimmer fitted with channel RCD protection and the RCDs kept on tripping.

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What If Your New Theatre Isn't Going To Get A Grid?

Staging Tower Grid

April 2011

Here at Jands Staging, we come across small (and not so small) theatres, both existing and planned, that do not have a grid in the tower over the stage.

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What If The Rules Are Too Hard To Follow?

Staging What If

July 2014

One of the cardinal rules in developing safety systems is to engage with the users of the system when you’re developing the rules of engagement and to try to develop a set of rules that they are going to actively and diligently follow - something more substantial than just giving it lip service. This rule applies equally when designing complex machinery control systems as it does if you’re dealing with something like, say, getting pedestrians to cross a road at traffic lights.

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What If We Cut A Few Corners Designing Our New Theatre?

Staging What If

June 2014

You’re building a new theatre, either in a new building or, more likely, you’ve inherited a “space” and are going to convert it into a theatre, or worse, the dreaded “Multi Purpose Venue”. You’ve seen lots of shows in theatres and have even been involved on the periphery of another theatre construction project or two and have sat in on the site meetings with the theatre consultants and theatre contractors, so you’re not exactly working in new and unknown territory, right?

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What If We Have A Hoist That Has An Identity Crisis?

Staging What If

May 2014

In July last year we touched on the topic of adding a second brake to a generic industrial grade chain hoist (D8 Compliant or equivalent) to make it “safer”, and this topic has reared its ugly head again here in the world-of-explaining-chain-hoist-compliance.

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What If We Don't Maintain The 1s And 0s?

Staging What If

April 2014

Most of us are well aware of the need to maintain the nuts and bolts (and ropes and shackles and pulleys) of a piece of machinery so that it keeps working reliably, day in and day out, but what about the less visible parts of the system that are just as essential for the continuing safe operation of stage machinery?

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What If You See Something That You Can't Ignore?

Staging What If

March 2014

Stage Engineering is a discipline where advances in technology over the last few decades have made it possible to design, install and operate machinery that is significantly more reliable and safe than back in the “bow and arrow” days.

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What If We Tell The Machine To Misbehave?

Staging What If

February 2014

I recently read a very sad and disturbing article in an Aviation Journal regarding an aircraft crash in Namibia a few weeks before Christmas last year. The aircraft was a very new (manufactured in Nov 2012) Embraer 190 with a mere 3,000 operating hours, flown by an experienced pair of pilots with a total of over 20,000 flying hours between them.

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What If We Don't Pay Attention To The Human Factor?

Staging What If

December 2013

Here at The Ranch for the last few weeks we have been busy with the all too necessary task of reviewing Risk Assessments and Safe Work Method Statements (SWMS) for a couple of machines. As is the case with a lot of Stage Machinery, they are large and powerful and require great care and diligence to operate with an acceptable degree of safety.

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What If A Load Brake Hoist Is Installed Upside-Down?

Staging What If

November 2013

Back in early 2010, we published an article entitled “What If I need to use a single wire load-brake winch to fly a batten?” and we hadn’t, however, considered the possibility that someone would install a load brake hoist upside-down.

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What If My Hoist Has A Higher Safety Factor Than My Shackle?

Staging What If

October 2013

The issue of Safety Factors of hoists and the rigging that hangs those hoists seemed to be a topic of some confusion and misconceptions when a straw poll was taken, so this seems to be a good place to start.

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What If Something Fails?

Staging What If

August 2013

Contrary to what the title of this article may suggest, we’re not going to discuss how you deal with a teenage child failing the HSC or a driver’s test. We’re going to look at how a well designed system handles failures – a design technique known as “Fail-Safe” (also referred to as Fail-to-Safe, Failsafe, Fail-Secure, etc).

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