Adjusting the RAMPTECH® Carburetor

RampTech_NEW_one color

Note: Before proceeding with carburetor adjustment, verify that all ignition components are working properly, including checking engine timing. Also check for adequate fuel pressure, clean air filter element, and that there are no vacuum leaks.

CarburetorPartslist

 REQUIRED ADJUSTMENTS AFTER CARBURETOR INSTALLATION

Automatic Choke Adjustment

Carburetor-auto-choke-adjustment

  1. Check that engine is starting cold. Adjustment applies for cold engine only.
  2. Loosen the Choke Cover Screws and adjust the Choke Cover to obtain the desired cold start mixture.

Note: If engine is flooding during start up, hold the choke open manually to start the engine and then adjust the choke.


Idle Speed Adjustment

Carburetor-idle-speed-adjustment

  1. Run the engine a minimum of 20 min at 1500 RPM to reach operating temperature.
  2. Verify that the choke is in the full-open position and the Fast Idle Screw is not touching the Fast Idle Cam.
  3. Turn the headlights on.
  4. Adjust the Curb Idle Screw to obtain the recommended engine idle speed of 800 RPM.

Note: Idle Speed and Idle Mixture adjustments can be done at the same time to prevent engine stall due to a too lean or too rich air/fuel mixture at idle.


 Idle Mixture Adjustment

Carburetor-idle-mixture-adjustment

  1. Verify that Idle speed is set to 800 RPM and engine is warmed up to operating temperature.
  2. Remove limiter cap and adjust the Idle Mix Screw until engine idle is smoothest (turn in for lean or out for rich ). Re-install limiter cap when done.

Alternative to Step 2: Attach a vacuum gauge to read manifold vacuum. Remove the limiter cap and adjust the Idle Mix Screw until the gauge reads a steady vacuum between 17-21 in-Hg. Re-install limiter cap when done.


Fast Idle Speed Adjustment

Carburetor-fast-idle-speed-adjustment

 

 

  1. Verify that both Idle speed and mixture have been properly adjusted and engine is warmed up to operating temperature.
  2. Place the Fast Idle Screw on the top step of the Fast Idle Cam as shown above.
  3. Adjust the Fast Idle Screw to obtain the required fast idle RPM.

 ADVANCED SETTINGS

The following steps to be performed by experienced users only. Use only if carburetor is malfunctioning.

Float Level Adjustment

Carburetor-float-level-adjustment

  1. Turn the Air Horn Assembly upside down without gasket and allow the Float Hinge to touch the Needle Pin without compressing the spring. DO NOT exert pressure.
  2. Bend the Float Hinge so the distance is equal to 0.98” as shown above.

 

 

 


Float Drop Adjustment

Carburetor-float-drop-adjustment

 

  1. Hold the Air Horn Assembly horizontally in the upright position as shown above, without gasket and allow the float to hang free.
  2. Bend the Float Tab so the distance is equal to 1.50” as shown above.

 

 

 


Metering Rod Assembly Adjustment Process

Carburetor-metering-adjustment

  1. Back out Curb Idle Screw until Throttle Plate is fully closed.
  2. Press down on the Pump Plunger all the way and hold.
  3. Turn Metering Adjustment Screw counterclockwise until the Metering Rod just bottoms the casting (don’t move anymore)
  4. Turn the Metering Adjustment Screw clockwise until it contacts Pump Lifter Link, then in 1 additional turn.

 

Download the Carburetor Adjustment Instructions pdf

 

 

Adjusting the RAMPTECH® Carburetor

GSE MAINTENANCE & PARTS PROCUREMENT – A VITAL LINK

AirsideLogo

As seen in Airside International Magazine, June 2011

This balanced state of affairs can only be achieved if the GSE equipment is fully capable, with minimal downtime from mechanical or system failures. It is necessary to ensure that all vehicles comply with safety regulations and manufacturer quality standards. In addition a thorough knowledge of hydraulic and electrical systems on all types of vehicles and regular technical inspections, prevent vehicle breakdowns. In these difficult economic times it is ever more difficult to offer an efficient and timely service with high levels of safety, increasing concern over the environmental impact and all at low operating costs.

Concern over the environment is leading to the introduction of new technology to develop low emission vehicles including electric, hydrogen and fuel cell technologies. IT techniques can also offer “smart” operations reducing costs and often extending equipment life by reducing non-productive activities or journeys.

The growing technical complexity of this sector requires strong maintenance support, bolstered by an efficient service of spares and supplies. A service that a number of companies are keen to exploit and which has led to an effective, global infrastructure. Some companies not only manufacture ground support equipment but offer comprehensive aftermarket services. JBT Aerotech is a good example with a large network of service and spare parts centres.

A leading supplier of GSE parts is T123 that has seven facilities in UK and Ireland supplying parts for a wide range of propriety equipment. In Ireland, the depot is based at Dublin Airport and provides specialist GSE parts to airport ground support equipment operators and service companies from stock.

Airside GSE Ltd, offers refurbished equipment and a comprehensive spares service. Terberg DTS is another another supplier of GSE repair and refurbishment services and can offer tailor made support packages to suit individial customer requirements. GSE Europe, based in Gelsenkirchen, also offers maintenance services and spare parts for GSE covering the complete range of airport equipment. Vestergaard with facilities in Denmark and the United States is a comprehensive source of parts, technical support for a global market.

The choice is broad and the market competitive but the operator needs more than a source of parts, it is equally imperative to receive correct advice and technical backup to ensure that the right procurement choice is made both on grounds of commercial choice and economic advantage.

During the recent GSE Buyers Conference, at London Heathrow Airport, these considerations were addressed by Geert Oliebos of Flightcare Belgium. Emphasis was placed on the need for the operator to compile both a GSE procurement strategy and a GSE maintenance strategy, both of which reflect upon the total cost of ownership. It has to be noted that in the current economic climate “cost” is virtually seen as the most significant consideration.

Oliebos highlighted the need for careful timing in the procurement cycle as well as consideration of refurbish or replace. It was interesting to note that the Speaker favoured a long-term relationship with the supplier based on good service and recognition of each others requirements and capabilities.

Inevitably the question of insource vs outsource was raised. The answer, apparently, is a perfect balance between in and outsource, a highly subjective situation. Experience suggests that critical ground service equipment should be insourced, while outsourcing should be built in partnership with the supplier.

Some of this thinking can be noted when US-based, Elite Line Services Inc (ELS), a division of G&T Conveyor Co, Inc. points out that its maintenance programme is customer specific, tailored to their individual needs. ELS claims to be the only service organisation to incorporate a Process-based Quality Management System. ELS’s management approach is one that is result oriented and focused on meeting and exceeding customer’s expectations. ELS’s commitment is to improving management, efficiency and staff motivation, while reducing waste and costs.

It is arguable that the wide range of scope of equipment poses considerable challenges in monitoring and ensuring correct use and maintenance of equipment. A recent incident at a major international airport, when use of the wrong towbar caused minor damage to an aeroplane, highlights this point. The investigation concluded that the size of labelling was a contributory factor, a maintenance/management concern, emphasising the need for care at the lowest levels.

So much for the theory; what of the wider practice? Sage Parts is an established organisation at 24 locations in North America, as well as in Hong Kong to meet Asian customer needs, two locations in Europe in Amsterdam and Paris CDG covering Europe and other facilities are in the Caribbean and Canada. The Company motto is “anticipating needs, meeting demands and reducing costs”.

How are these achieved? It was a question Airside International recently put to Michael Bloomfield, Sage Parts Executive Vice President. “From the beginning, the Company’s specific purpose was finding a highly organised and highly systematic and a highly procedural process to the holding of inventory and packing and shipment of replacement parts”, replied Bloomfield. “One of the things we have become very good at is to absorb ourselves into our customer’s processes where we can anticipate their inventory needs and proactively stock those items. Consequently when the customers place an order the items are readily available.
“We reduce costs, because we supply such a broad range of the market, we are able to do expert analysis of high use items, particularly when it comes to performance and reliability, allowing an element of redesign of some items and components to offer better wear and life cycles, that is an excellent way of reducing costs. The other is that we have an extremely efficient supply chain where we are able to negotiate costs and pass those savings on by a lower selling price to our customers. So we can provide high cost savings by providing better parts or less expensive parts and we can provide a huge amount of savings by reducing their processing costs”.

Bloomfield was keen to emphasise that “We offer customers a strategy to keep their freight costs to a minimum, their processing costs to a minimum and if necessary, to suggest a product change to perhaps offer a better life cycle. Sometimes we will consult with them on new equipment purchases, such as where product support is easier to obtain than with other brands”.

Of course, speed of response is a paramount factor in the aviation supply chain. This is recognised by Bloomfield who emphasised that “We are able to respond extremely quickly. We have 24 locations around the world, many of which are open 24hrs/day, seven days a week and able to serve customer needs at any time. We have an accelerated process for any “AOG type” scenario where we have an instantaneous spot buying and expediting process. We can fulfil customer needs extremely rapidly, at no additional fees or cost for an expedited transaction”.

In reply to a question about monitoring customers to anticipate future demands. Bloomfield was quick to respond, “Absolutely” he said, “this is perhaps our largest value add on to date. We are constantly monitoring their demands and seeking to assist with preventative maintenance programmes, repair cycles or otherwise to enable us to stock parts in anticipation of needs”.

The Company was a very early entry into electronic commerce, starting some eight to nine years ago and it has featured constant growth. The “eSage” online ordering system, can use any standard web browser to log on and order parts from anywhere in the world, day or night. The site carries detailed photos of parts, a check on real time inventories, the facility to see order status and perform many other functions, such as reviewing past ordering history or producing statements and invoices electronically.

“Every day there is development going on to either adapt to a customer’s needs or to the market needs, doing things like integrating our e-Sage application with customer’s maintenance, procurement and payment programmes, where we can continually try and keep cost to a minimum”, said Bloomfield, “Also on the ordering side, every day we make the programme easier where customers can put in payment lists, maintenance schedules and preventative maintenance kits can be ordered and adapted to individual maintenance needs”.

Sage Parts, in common with a number of other companies, offers the service of a visit to a customer facility, well in advance of the first snowfall, to evaluate and assist in repairing and preparing de-icing and snow clearing equipment. This prevents downtime before it can happen. No doubt airports in Western Europe are more than aware of such facilities, following the experience of the last two winters. To paraphrase an old saying – a check in time saves a lot of embarrassment!

GSE MAINTENANCE & PARTS PROCUREMENT – A VITAL LINK

HIGH VISIBILITY AT SAGE PARTS

AirsideLogo

As seen in Airside International Magazine, December 2009

“Sage Parts works with many manufacturers who have a desire to supply to the ground support industry,” comments Bloomfield, adding that these companies see Sage Parts as a vehicle to enter aviation parts supply markets. One of these manufacturers is a performance clothing company.

He explains that there are a number of mass manufacturers who have shown themselves to be willing to bypass their traditional routes to market, collapse their supply chains and to go direct to market with the only conduit being Sage Parts.

The parts company has as its mantra that it is in business to raise the quality of parts but at a lower cost. It has put in place an evaluation team to identify which mass market components can be manufactured better but cheaper and then it puts in place the means to achieve this on behalf of clients who own, use or maintain GSE.

Sage Parts is teaming up with producers of products with a proven history of high quality to bring two product lines to the industry.  The first appears under the Red Hawk brand and this is for GSE parts that are also used in other industries such as the automotive and truck market. The second brand is called Ramp Tech and this comprises GSE parts for the aviation industry. Both these product lines are subjected to meet but more often exceed GSE industry standards.  Sage Parts applies its 40 plus years of experience in designing, developing, and producing these product lines.  And the company does not just engage with parts distribution for equipment that is still in production; there is a significant business to be made out of supplying components for ageing equipment that is no longer coming off the production lines.

These obsolete items may have been easy to obtain, say, 30 years ago when the equipment was new; roll the calendar forward several decades and it takes a specialist like Sage Parts to reengineer these components to a higher spec than they were built to originally but always at a fair price to the market.

Against this backdrop of parts provisioning, complex logistics and reengineering obsolete components to modern standards comes the news that Sage Parts is trying its hand at distributing performance garments to the aviation industry. Why? “Client demand,” responds Bloomfield. “Clients asked Sage Parts to help them supply of all its work wear needs so we went with highly experienced work wear manufacturers and created the Ramp Tech Work Wear brand.”

High visibility safety vests, rain wear, and jackets may be a world away from starter motors and carburetors but when you think less in terms of the item being distributed and more in terms of the method of bringing those items to the market, Sage Parts’ involvement with work wear distribution makes perfect sense.

“We have a number of airlines who are our anchor customers,” says Bloomfield, adding that his company has simply added another product line it can discuss with its client base. Again, Sage Parts is able to eliminate the traditional supply chain for this type of clothing and reduce costs for the buyer.

But this is not just a departure into fashion for the parts company. Aviation work wear is regulated at airport, state and often federal level – it is subject to similar levels of scrutiny as GSE parts themselves. After all, it has to be static-proof around refuelling, it has an identification function and it has to meet the expectations of the customer. Sounds like a perfect niche for Sage Parts to enter.

HIGH VISIBILITY AT SAGE PARTS

PART AND PARCEL

AirsideLogo

As seen in Airside International Magazine, September 2008

“We hold lots of inventory,” comments Michael Bloomfield, Executive Vice President of Sage Parts. “It’s the only way we can do our business.”

He explains that Sage Parts operates two areas of business; one is very conventional in which the parts purchaser requests information on parts and delivery and, if they like what they hear, Sage Parts picks, packs and ships the item to them.

“The other business we are in is more related to supply chains and logistics. Once again we use our own inventory but we are on site at the customer’s location and when the mechanic needs a part, he will come up to the parts counter, talk to a Sage employee about an item, the Sage employee will take a Sage owned part off the shelf and hand that to the mechanic at which point the item changes title and we invoice for it,” explains Bloomfield. “In this scenario, the customer – mostly airlines – has us come on site and establish a parts room in their maintenance facility and we dispense parts directly to the mechanic.”

So how does Sage Parts manage its exposure to ageing, obsolete or too plentiful inventory? “In several ways,” responds Bloomfield. “We have developed some very advanced algorithms – along with algorithms that we’ve purchased with our enterprise software – that allow us to do a tremendous amount of anticipatory buying and keeping of inventory. This adjusts for varying types of customer demand and seasonal demand.”

Sage Parts is not in the business of repairing used parts but it does have the facility to bring cost savings for its customers in relation to major parts. “We have a rotable programme for engines, transmissions, steer axles, drive axles, hydraulic components, and any other complex components where Sage can create value for its customers,” comments Bloomfield.

In terms of buying, he comments that Sage Parts takes the view that it is sometimes business prudent to buy more parts than it needs. “When it’s not, we’ll find other options to make the acquisition of that particular item business prudent. When it is advantageous to buy large quantities of parts, then we do so,” comments Bloomfield. “We often buy an entire production run of items to fulfil demand for high flow items”.

In terms of logistics, where Sage Parts is not on site at a customer’s location, parts are despatched by the company from any one of 24 Sage Parts warehouses worldwide.  Customers can order parts through an e-commerce system – eSage – or through its Customer Service group.  Troubleshooting and hand-holding is offered through by the same customer service group or any of their many sales and service representatives in the field. “We are a single source supplier for many of our customers,” insists Bloomfield. “We feel it is a much better proposition to consolidate purchasing through a company like Sage than to go shopping for individual items.”

He continues: “If a customer, over the course of a year, purchases 1,000 items from us, some they will pay more for and some they will pay less for. But if you add up the total purchase of 1,000 items it will come out less.”

More than a GSE supplier

For some providers, parts provisioning is just one strand of the business. Steve Rowe, GSE Sales Manager at Wings Electro Sales in Florida, explains that his company also builds electrical connectors, for GSE applications but also for avionics and other aircraft related applications.

“Our GSE position is probably about 20% of our business,” he explains. “Mostly our GSE business provides spares in the couplings and hoses applications.”

He continues: “We contract with a lot of the airlines who purchase couplings and hoses for their on site uses. We sell a lot to FBOs because they are always replacing or upgrading their lav and water carts on site. And we also deal with a lot of the OEMs that manufacture those carts and trucks.”

Rowe confirms that Wings Electro Sales deals with the market on an item by item basis. “We use IT systems to control our inventory. We monitor our stock levels. In most cases we find that when someone needs a replacement part, specifically lav and water coupling and hoses, they need their parts yesterday – they can’t service an aircraft if they don’t have a way to link it up. We try to maintain stock at all times for these components. We work with Rockwell Collins to make sure that we have timely arrival of parts into our stock so that we can make shipments the day that someone requests a part.”

Wings Electro Sales ships parts all over the world. “If we ship outside the US, the method of shipment is determined by the customer,” says Rowe. Everything is shipped from a central location to where it is needed worldwide. “With today’s shipping provision, we don’t feel we need to have other locations, but the possibility of opening a location in Asia to service that rapidly expanding market is under discussion” he adds.

Manufactured in our name

Katey Hunt at Ground Support Products explains that this company supplies replacement parts for non-motorised ground support equipment. “A lot of it is for cargo dollies, baggage carts and other trailers,” she says. “These parts are manufactured exclusively for us and under our name.”

She continues: “We work with and supply to OEMs. We undertake any improvements they ask for. We also do that with our customers. If there’s a part that they think can be improved, we will certainly try to do that for them and then we can go back to the manufacturer and tell them about the improvement.”

In terms of Ground Support Products’ route to market, mostly this is direct, although there are some brokers involved in some supply chains. Supplies are made internationally. “At the customers’ end, inventory calculations tend to be automated so they know when stock is getting low and then they simply notify us,” she says.

“In the US, we have five warehouses and we ship from the closest warehouse to the customer,” says Hunt. “We keep a good amount of stock so that the customers have the product when they need it. It’s a case of keeping track of what stock has gone out and making sure we have plenty of the stock that moves the fastest.”

Hunt says: “We do have a lot of customers who are doing more repairs on the equipment. But, as of late, we have not seen as much of a down cycle as I was expecting. We do a lot with ground handlers and they are pretty busy. The airlines are a little more conservative with how they are spending but we’ve been busier than I expected.”

“We are always adding new parts to our product line. There are other industries that use similar parts to the ones we supply to the airline industry and for a while we have supplied them too. I think it is important to look outside of the aviation industry and expand into other areas.”

One, two, three, go

T123 Ltd, is a key contender in this market but at present its main focus is the UK. The company was formerly Multipart Fleetserve but has undergone a management buyout, funded by top management, a private investor and a bank. Donna Bamber, Head of Commercial at T123, explains that the company is operating as usual but the change in ownership will enable the company to build on its core business in the critical fleet sector.

About 60-70% of the business is derived from the airport environment. While today the clients are UK-based, the intention is to expand internationally, particularly Europe.

When asked whether parts provisioning for GSE can or should become as sophisticated as it is for aircraft maintenance, Bamber responds: “There are reasons why it does not need to be that sophisticated. Our business relates to the fact that we hold stock on site and offer a value added service not that we operate just in time delivery. A lot of the GSE manufacturers are overseas so our experience in inventory management and determining which parts to hold to maintain high levels of availability is invaluable to our customers.”

By way of example, she explains that all sorts of penalties can come into play if parts are not where they need to be in the airport environment. Let’s say a particular loader is missing a wheel, the loader is not in service, the handlers can’t unload the aircraft and so there is a delay. That’s where the penalties come in.

The diversity of components for such a large array of equipment from a plethora of providers means specialist parts suppliers have an intrinsic role to play, especially if the equipment has been modified. She adds: “This is a specialist market. It is not like the standard automotive truck market. Not anyone can supply you with a part for an aircraft tug.” Bamber points out that there is a critical element to this service and specialist parts knowledge that cannot be achieved by amateurs.

So how can T123 distinguish itself in this market as it seeks international expansion? Partly, a parts supplier like T123 distinguishes itself through achieving good terms through bulk buying, she says. “We have systems set up with our clients whereby we are on their site, we issue them their parts, we download information to them overnight to update their systems and we provide the headcount for their operations,” Bamber comments. “It is not just about supplying the parts but the additional value we can bring to our clients non core activities.”

So what clinches a deal? “We buy the inventory or manage the inventory reduction which injects cash into the client’s business. In the event that we buy the inventory, this means the client does not have to source this funding and they do not have obsolescence or excess risk. We may also take the people off their books and provide training in inventory management.  Our strong relationship with the supply base enables us to be competitive on parts pricing whilst still offering a value added service”

Dealing with downturn

Surely, given market conditions, parts providers have an intrinsic role to play. In terms of Sage Parts’ reaction to the market and its down cycle, Bloomfield comments: “When the market goes into a downturn, that is both a threat to this business and it is also an opportunity. If you had to weight the threat versus the opportunity, I would say the opportunity far exceeds the threat. The problem with the downturn is the financial health of the airlines and there is always the threat in this business that an airline – particularly in the US – is going to file for bankruptcy. When this happens, of course you have an inability to collect any outstanding receivables. To operate this business in the down times, it is very important that we remain extremely cognisant to the financial health of the airlines.”

He concludes: “I believe, there is always a decrease in demand for everything during a downturn, including replacement parts. But for a shorter period of time than there would be for a downturn in demand for other things. GSE has to be utilised regardless and, if operators are not replacing GSE with new, they have to do the repairs which means that they have to buy parts.”

PART AND PARCEL