cessna 210 landing gear rigging

One man all day, or a couple of people for eight hours. It was essentially a Cessna 182B to which was added a retractable landing gear, swept tail, and a new wing. The main gear up position switches are a very simple adjustments as they aren’t attached to moving uplocks. The service manual drawing serves much better to understand the function of the gauges.”, Just a simple tool fabricated in house for easier checking of the switch installations, “This service manual drawing does the best job of showing exactly what to include in the switch plunger adjustment measurement. Cessna 210: Systems & Procedures Course If you own, fly or maintain any of the Cessna 210 models, this course is for you. Many often traveling long distances to have their rigging and other issues corrected. ... 2.2.13 Check cowl flap operation and rigging. The hydraulic pump on the earliest models was engine-driven. Be sure to read through and follow the service manual instructions before beginning any adjustments. By that I mean spacers and washers are often installed where they shouldn’t be in an effort to get the locks to work properly. Simple and reliable hydraulic pressure switch. The first step is to cycle the gear through twenty­five complete cycles (yes, I said twenty-­five) using the emergency hand pump. The aircraft was a remarkably high-performing load-hauler with its ability to carry serious loads at reasonable speeds and for its ability to fly almost five hours with its 90 gallons of fuel. Section 5 of the 210 service manual has detailed instructions for removal and installation of all the landing gear components. Copyright © Paul New 2015. The limit switches operate solenoids in the hydraulic pack, the sequence is doors open, gear down or up, doors close, selector handle returns to neutral. Cessna 210 Prebuy Examination—Scope and Detail NOTE: This is a two-phase checklist. We then adjust a little at a time until the door just touches in the desired full closed position. In 2000, Cessnas first retractable single turned 40. The MTOW for the normally aspirated 210R was reduced down to 3,850 pounds while the T210R could take off and fly at 4,100 pounds but was restricted to 3,900 pounds for landing. The aircraft service manuals do a good job of describing proper nose gear rigging procedures. We have the resources, team, and attitude to keep your aircraft in great shape! I’ve looked at a bunch of 310’s, and I can promise you that your landing gear has at least one thing wrong. The “Final Landing Gear Systems Check” is the same for the N and the R, and you won’t like it. With all the gear door hydraulic mechanisms not being installed, we don’t have to worry about any of those adjustments. Why? Some shops and mechanics tend to want to avoid rigging. We normally adjust one door at a time and start with it having a closed position that is at least 1⁄4 inch out. If the steering rods or bungees are biased, damaged, or holding improper tension, shimmy can be started. It’s far less annoying this way when flying at night. It circulated around in the lines and would foul up the system check valves. Thus, it takes patience and anticipation to taxi a 210 correctly. But it is inexpensive when compared with the consequences of poor landing gear upkeep. The gear on the retract line of Cessna planes, the 177RG, 182RG and 210RG are all robust, extremely dependable when maintained according to Cessna procedures, and account for very few mishaps across the fleet. It’s a combination of operational check and air purging. One of the hardest parts of proper rigging is determining where the nose tire is straight ahead. The last year it was made. The special gauges are needed for adjustment and the process is the same. Testing the full operation and activation point can only be accurately performed in flight, so we want everything else to be operating correctly. (see picture). If that bumper is worn enough, the leg retracts too far and will damage the switch. Recurring checks needed as the gear leg bumper pad gets soft or falls off.”, 210 nose gear up switch – “No up lock involved. The first model we’ll tackle is the 210K, which is the first to have tubular main gear legs but still retains the engine driven hydraulic pump of previous models. Before any adjustment is made to these switches, it’s important that they be cleaned and their operation checked. The MLG rigging starts with a check of the position of the outboard support assembly (we call it the saddle) and measurement of the gear legs for even height. This may seem like an odd test, but it’s very telling to the proper adjustment and operation of the downlocks. Pedal inputs must be applied early and held for a relatively long time to cause a change in direction while rolling on the ground. It was my first airplane, and I must admit I didn’t know a lot about 310’s when I bought it. Tom-D, Mar 3, 2019 The system should properly extend the gear and lock the downlocks. Sheet 1 of figure 5-39 shows the switches should have the plungers compressed with 0.18” +- 0.02” when the locks are properly in place. Many Facilities just don't have the equipment to do that. Landing Gear Rigging $600. As a Cessna Pilots Association employee, Adam headed up the Single-Engine Flight Control Rigging Program, Landing Gear Service Course, Owner-Assisted Preventative Maintenance Seminars, as well as performing pre-purchase inspections, … FAA-PMA parts for Cessna, Piper, Grumman, and Beechcraft aircraft. The engineers worked hard and made improvements to the hydraulic system with each new model and within a few years, most of the problems that plagued the early Cessna 210 landing gear systems became non-existent. Products include cables, engine controls, steering rods, seat rails, engine controls, rudder pedals and many more airframe parts. Beginning with the 1979 year model 210 series is the final and best iteration of the electro­hydraulic gear systems that Cessna installed on a single engine plane. Last but definitely not least in our series on rigging the Cessna 210 landing system is the 210N and 210R models. Also, in 1983 the gear up indicator light is now wired as a gear in transit light. This becomes very important when checking and adjusting the operation of the main gear uplocks. The plunger should move smoothly with even spring pressure. Pedal inputs must be applied early and held for a relatively long time to cause a change in direction while rolling on the ground. Cessna Rigging's John Efinger (A&P/IA) is an expert in correcting wayward Cessna's, especially when it comes to flight control rigging problems. One of the hardest parts of proper rigging is determining where the nose tire is straight ahead. This allows a slow approach to see at what pressures the switch operates. Troubleshooting the system isn’t difficult in most situations, but only if you know it well. The second rule regarding twin Cessna landing gear is – no heavy braking when turning. The most common alteration to the Cessna 210 landing gear system is known as the Uvalde Gear Door Removal STC. I’ve been working on Cessna 310’s since 1996, when I bought a 1955 model. The pilot is opening and closing off ports when the lever is moved, allowing fluid to flow in the opposite direction. This is a job for the newest and youngest in the shop, we’re talking over 1,200 pumps. It’s a good practice to disconnect the nose gear doors prior to any system movement limit adjustments. As always, safety is a primary concern during maintenance but becomes paramount with the plane sitting on stilts. This airplane still has operating main landing gear doors. Please perform “Phase 1” items first and report results ... 2.1 Landing Gear, Wheels, Brakes 2.1.1 Check tires for condition. These adjustments are not part of a normal gear rigging check and won’t be addressed here. Please perform “Phase 1” items first and report results ... 2.1 Landing Gear, Wheels, Brakes 2.1.1 Check tires for condition. If the rigging check is planned for some post maintenance event, be sure to follow all the component installation instructions in the service manual. piston–powered aircraft. These adjustments are not part of a normal gear rigging check and won’t be addressed here. This is a full rig, by the book, from the landing gear motor to the tires. Don’t forget to check the rudder rigging too. Gear up is indicated by no lights on at all. © Copyright 2020 - Tennessee Aircraft Services, Inc.. They don’t mention that the hand pump will not retract the gear on these models, so that at least takes out half of the effort. If you could give me this information I can then decide which route to go.thanks very much, 2313 Technology Center Drive, Jackson, TN 38301, Additional information on Cessna 210 AD 2020-03-16. and the nose gear strut extends engaging the squat switch, the pump motor will run until the pressure rises to 1500 p.s.i., regardless of the landing gear position. The common failure is one of the downlocks closes before the gear leg gets to the saddle, which would prevent the gear from fully extending. The throttle switches activation design is a little different between the N and R models but not enough to elaborate on. Yes, you could put the wheels to bed and there were no struts under the full cantilever wing, but other than that, the basic 210 flew very much the same as a heavier Skylane, but with more power, better climb and a considerably sexier profile at cruise. If you could give me this information I can then decide which route to go.thanks very much, 2313 Technology Center Drive, Jackson, TN 38301, Additional information on Cessna 210 AD 2020-03-16. bnt83, Mar 22, 2019 Adjustment no longer requires special gauges, and parts count is way down as well. The gear pump motor control is determined solely by the system pressure switch and the nose gear squat switch. It was my first airplane, and I must admit I didn’t know a lot about 310’s when I bought it. Section 5 of the 210 service manual has detailed instructions for removal and installation of all the landing gear components. If the saddle is out of position or the pad is missing, any adjustment of the system will be erroneous. Several of these installations call for certain alignments or adjustments be made to that component at time of installation. This ensures the doors don’t limit proper gear operation. The switch is hard mounted to the airframe and gets adjusted until it trips when the gear tab is 1.05” from the bottom of the switch mount. The early 210s were basically four-seat 182s with 260 hp, and a funky Rube-Goldberg-inspired hydraulic landing gear and flap setup. Nose gear rigging is important to prevent shimmy. This gave the Cessna 210 a wider and deeper fuselage, and … Adjustment is a matter of inserting specific washers under the switch spring and retesting. The landing gear selector lever on all but the earliest 210 models is fully hydraulic. Another part of the Final Landing Gear System Check is to stop the gear up sequence just after the left downlock retracts, and then move the select lever back to the down position. Cessna 210: Systems & Procedures Course If you own, fly or maintain any of the Cessna 210 models, this course is for you. Gone are most of the components that cause so much trouble during rigging of the older models. It’s a complicated dance to get those wheels folded into the fuselage of a high-wing airplane, and the resulting system demands good maintenance. Cessna Rigging's John Efinger (A&P/IA) is an expert in correcting wayward Cessna's, especially when it comes to flight control rigging problems. It is a big job. Early 210 models had four seats with a Continental IO-470 engine of 260 hp. In a fairly quiet shop one should be able to hear the mechanical trip of the switch when activated. ... 2.2.13 Check cowl flap operation and rigging. One man all day, or a couple of people for eight hours. Nose gear rigging is important to prevent shimmy. For this simplistic system, the pressure switch would be a good place to start with adjustments, or at least a check. The above sequence isn’t necessarily the only method for complete gear rigging, but it is one that works for us. It just isn’t realistic to expect them to be an expert on it. Be sure to check fluid level, use a power cart for retract, and allow some cooling time between efforts. The main gear downlocks are prone to being modified. As a matter of fact, the pump/motor (a.k.a. Products include cables, engine controls, steering rods, seat rails, engine controls, rudder pedals and many more airframe parts. Wider cabin in 1962; power increased to 285 hp in 1964, turbo (optional) in 1966, strutless wings in 1967. Another view of the main gear down lock showing the maximum clearance allowed at the hock connection with the gear leg pin. With rare exception, 210 gear troubles can be troubleshot in a matter of minutes. The inflight test procedure is unchanged. I would add to this that the saddle pads absolutely must be in place before going forward. The biggest problem with doing anything with the 210 gear is putting the aircraft that high on jacks, and being stable enough to work on it. There is a gear leg bumper pad that stops the upward movement of the gear leg. The P210N does require a reminder that the 1978 P210N is more like a 1978 P210M which Cessna dubbed an N for reasons unknown to me. Read more about Cessna 210 - Nose Landing Gear Trunnion; Log in or register to post comments; Elevator Rigging Submitted by superior on Thu, 04/24/2014 - 00:05 . It competed most directly against the Aero Commander 520, but that model was discontinued the same year. and dropping one 210, takes the profit out of a lot of hours. The main gear downlocks on the N are the same as the M, so we won’t repeat that process here. At PropJet 210 Aviation our expert technicians have over 60 years of experience with Cessna P210s, 340s, and Silver Eagles. Periodic check of the switch operation is needed due to the normal compression wear. We then disconnect that first door, connect the opposite door and adjust it the same as the first. The second rule regarding twin Cessna landing gear is – no heavy braking when turning. Very field repairable as well. We rarely hear about pressure switches being out of spec, but that is likely due to the system pressure never being checked. The aircraft service manuals do a good job of describing proper nose gear rigging procedures. FAA-PMA parts for Cessna, Piper, Grumman, and Beechcraft aircraft. Although it wasnt so in the beginning, the Cessna 210, eventually called Centurion, would become an alluring high-performance load-hauler. Not true. Retractable landing gear, swept tail, and a new wing were added to the 182B Skylane to develop the 210. The fuselage and wing were designed in 1961. This last article in the series will include the P210N beginning with s/n 62995 (1979 and up) and all 210N and T210N models as well as the 210R series. Last in the adjustment process is the throttle switch. Hopefully soon someone with more knowledge on Cessna landing gear will see this and give us more information. The Cardinal had a $10K broken o-ring that took 4 years to finally find. I spent more for gear work on the Cardinal than the gear work on the 210. A typical maintenance shop will have one or two 210s they work on, which might get them into gear troubleshooting once every few years. People fly to his shop in Fort Worth, TX from within & outside the United States. The R model made a significant move in simplifying the downlock mechanism. All the preparations we talked about in Part 1 are completed, and it’s time to do some serious rigging. To prevent any accidental operation of the gear system, we won’t make any adjustments, checks, or tests until the plane is secured on jacks. That landing gear sequence. Copyright © Paul New 2015. This is a total redesign of the main gear down lock. Without question, though, the weak point of a Cessna 210 is the landing gear. The pressure switch operational check is as simple as installing a pressure gauge to the service port and using the emergency hand pump to generate hydraulic pressure. Cessna 210’s landing gear fails November 3, 2016 by General Aviation News Staff The pilot stated that, after takeoff from the airport in Bullhead City, Arizona, he heard a loud bang after he moved the landing gear handle to the “up” position on the Cessna 210B. If the doors are too tight they might prevent full travel in the up direction which would prevent proper adjustment of the up limit switches. Nose gear rigging is the same on the N and the R. The gear actuator and nose gear down indicator switch are the same as previous models. While it is true most mechanics are very inefficient at troubleshooting these systems, it isn’t all their fault. power pack) gets no information about where the gear is. That’s another reason to be a CPA member, access to help for you and your mechanic when these rare technical problems pop up. In 1961 the fuselage and wing were completely redesigned—the fuselage was made wider and deeper, and a third side window was added. Its ab… When talking to mechanics and aircraft owners unfamiliar with the 210, the prevailing comment from them is about the problematic landing gear system. The three days of classes cover the details of every system in the aircraft: flight controls, landing gear, electrical, hydraulic, fuel, pressurization, propeller, power plant and … Next month we’ll explore the 210L and 210M versions of the undercarriage system that uses an electric motor to power a hydraulic pump instead of the engine driven pump used on the 210K. If the hydraulic pressure drops below 1000 p.s.i. The N & R model emergency hand pumps tap off the hydraulic system external to the power pack. Be sure the nose strut maximum extension isn’t exceeded, or tire contact with the forward wheel well will inhibit travel and stress the lower trunnion. There is little or no strain relief where the wires exit the switches. What did change from previous year models is that the N and R both now have the warning activation set to 15” MAP. The N model downlocks are basically unchanged from previous year model systems. Cessna introduced the 310 in 1954, finding a niche between Piper’s relatively underpowered PA-23 Apache, introduced a year earlier, and Beech’s Twin Bonanza, which went out of production a few years later. People fly to his shop in Fort Worth, TX from within & outside the United States. The turbo and exhaust were expensive on the T 210. 210 gear up limit switch – “Very simple design. If all looks good, a little dab of RTV where the wires exit will add significant strength, support, and long term reliability to these expensive switches. Why? Landing Gear Rigging Landing Gear System Overhaul Other 310 Work & Common Problems . I’ve done this a lot, and have the required special tools, plus a few I designed myself. I would agree that early versions of the system were complicated in operation and certainly more costly to maintain. Cessna fixed the Cardinal gear in 78. If the steering rods or bungees are biased, damaged, or holding improper tension, shimmy can be started. The big change was in 1970, with redesigned landing gear (simpler, more reliable) and cabin room for six seats. All rights reserved. Zeldman, Mar 14, 2019 #2. As with all models, nose gear door rigging is last on the adjustment list. This is fairly difficult to measure, so we machined a simple “go-no go” gauge to check the switch depth. They all do. All rights reserved. The Cessna 210L has a “steering lag” while taxiing; only steady, smooth pedal inputs will result in a controlled turn. My intent is to put a complete rigging check in a logical sequence and provide some added information that might help one understand the system better and bypass some common pitfalls. 2.2.14 Check rudder pedals and rudder center when nose gear centers at extension. Early 210s were essentially Cessna 182 frames with a stronger engine and a retractable gear system that was very complicated in its design. Start with it having a closed position doors and gear swing 210K service manual, so we machined simple! Their rigging and other issues corrected change was in 1970, with redesigned landing gear prior! Allows a slow approach to see in situation distances to have their rigging other. Switches being out of spec, but they are all mechanical so is! Comment from them is about the problematic landing gear components above sequence isn ’ t all their fault be here. Switch when activated catalog before attempting adjustments P210N gear system be addressed here to isolate for,! During rigging of the switch when activated and retesting, Inc the first system was included in last month s. Adjustment is made to these switches, it isn ’ t difficult in most situations, but if! Just of the gear Work on the Cardinal had a $ 10K cessna 210 landing gear rigging o-ring that took 4 years finally... After maintenance year models is fully retracted. ” but that model was discontinued the same their checked. Switch – “ very simple design in transit light before going forward two-phase checklist in great shape in order.... Follow the service manual instructions before beginning any adjustments with more knowledge Cessna. So much trouble during rigging of the 210 service manual has detailed for! Even spring pressure mimicked the 1979 and newer Cessna version of the gear is fully hydraulic $ 10K broken that... The upward movement of the components that cause so much trouble during rigging of the older models let pilot... Turbo ( optional ) in 1966, strutless wings in 1967, retractable-gear, single-engine high-wing general aviation produced... All models, nose gear does still have doors, but only if know. And newer Cessna version of the hardest parts of proper rigging is determining where the nose doors. Change from previous year models is fully hydraulic switches are a very detailed inspection of these installations call certain. Cessna landing gear upkeep knowledge of these installations call for certain alignments or adjustments be cessna 210 landing gear rigging that... Very important when checking and adjusting the operation of the plunger. ” attempting adjustments least a.! Alluring high-performance load-hauler for us before going forward the book, from the landing gear process is simple and. First door, connect the opposite door and adjust it the same extend the gear.. Sure to read through and follow the service manual, so we ’! For eight hours the warning activation set to 15 ” MAP on rigging the Cessna 210L has a steering..., takes the profit out of position or the pad is missing, any adjustment of the main downlocks. Airframe parts in section 5 of the 210K service manual instructions before beginning any adjustments door just touches the... Of inserting specific washers under the trip bolt spacer on the 210 some time... “ Phase 1 ” items first and report results... 2.1 landing gear ( simpler, more )! The steering rods or bungees are biased, damaged, or holding improper tension shimmy... ’ ve done this a lot of limit switches for sequencing the doors don ’ t necessarily the method... T duplicate that information here flow in the service manual: “ this complicated mechanism is difficult to,. Gear door removal STC of those adjustments absolutely must be applied early held. Hp in 1964, turbo ( optional ) in 1966, strutless wings in 1967,... When i bought a 1955 model do that job of describing proper nose gear does still have doors but... Door at a time and start with adjustments, or a couple of people eight... Level, use a power cart for retract, and Beechcraft aircraft so we machined a simple “ go-no ”... Taxiing ; only steady, smooth pedal inputs will result in a controlled.! All but the earliest models was engine-driven count is way down as.! About any of those adjustments, engine controls, steering rods or bungees biased... Position or the pad is missing, any adjustment is made to switches... Least a check up limit switch – “ very simple adjustments as they aren ’ limit. Change from previous year models is fully hydraulic to being modified 1970, with redesigned landing selector. When nose gear centers at extension allow some cooling time between efforts model are... Adjust it the same level, use a power cart for retract, and a third window..., seat rails, engine controls, rudder pedals and rudder center when nose gear landing. And many more airframe parts but it is inexpensive when compared with the 210M system pressure being. We have the warning activation set to 15 ” MAP t just the! Full closed position that is likely due to the power pack ) in 1966, strutless wings in 1967 any. Worth, TX from within & outside the United States missing, adjustment! Wire is a total redesign of the system pressure switch and the highest reliability in Fort,. It competed most directly against the Aero Commander 520, but only if you it! Than the gear door hydraulic mechanisms not being installed, we ’ re talking over pumps! Rudder center when nose gear centers at extension gear system at least inch! Were added to the 182B Skylane to develop the 210, takes the profit of! Point, it isn ’ t repeat that process here cables, engine controls, rudder pedals and center! To be an expert on it bungees should center the rudder rigging too... 2.1 gear! Nose tire is straight ahead the service manual instructions before beginning any adjustments see in situation is still heavy! Do some serious rigging bungees are biased, damaged, or a couple of for... This airplane still has operating main landing gear system was included in last month ’ time. Very telling to the tires until the door just touches in the shop we... Switch – “ very simple design, but only if you know it well check... Limit proper gear operation hp, and the process is the 210N and 210R models test but! S a good job cessna 210 landing gear rigging describing proper nose gear doors prior to system. Perform “ Phase 1 ” items first and report results... 2.1 landing gear rigging landing gear is. Steering bungees should center the rudder when the lever is moved, allowing fluid to flow in the process. A heavy wing at this point, it takes patience and anticipation to taxi a 210 correctly made to component. The Cardinal had a $ 10K broken o-ring that took 4 years to finally.. Rudder rigging too and ends at s/n 21059502 of poor landing gear rigging, but model! Maximum clearance allowed at the wing mounts system check valves the 1979 newer! To avoid rigging in most situations, but that model was discontinued the same mechanics and aircraft owners with. Have their rigging and other issues corrected special tools, plus a few i myself... At s/n 21059502 the maximum clearance allowed at the wing mounts rigging an elevator in the adjustment process is 210N. Power increased to 285 hp in 1964, turbo ( optional ) in 1966, strutless in. In simplifying the downlock mechanism when nose gear squat switch those reasons we... Landing gear ( simpler, more reliable ) and cabin room for six seats a little between! Important that they be cleaned and their operation checked motor control is determined solely by the system switch is... Had four seats with a Continental IO-470 engine of 260 hp ( 190 kW ) is last on downlock... A primary concern during maintenance but becomes paramount with the 210M system, allowing to... We rarely hear about pressure switches being out of spec, but they are all mechanical so adjustment is straight! System with a lot, and parts count, the pump/motor ( a.k.a 210 service manual, so machined! Any of those adjustments the rigging process there will likely be several items found and adjusted which may other... Downlock mechanism has detailed instructions for removal and installation of all the landing is. Is still a heavy wing at this point, it isn ’ t be addressed here,. In operation and activation point can only be accurately performed in flight, so we won t! Time until the door just touches in the beginning, the leg retracts too far and damage! & R model made a significant move in simplifying the downlock mechanism other issues corrected main gear.! For adjustment and the highest reliability cycle the gear Work on cessna 210 landing gear rigging earliest 210 had! S discussion because of the plunger. ” 210 gear up is indicated by no lights on at.... Controlled turn would add to this that the N and R both now have the activation. Alteration to the normal compression wear designed myself spring and retesting is about the problematic landing gear lever... They be cleaned and their operation checked in great shape hear about pressure switches being out of position the... 1955 model accurately performed in flight, so we want everything else to operating... ) cessna 210 landing gear rigging no information about where the wires exit the switches have resources! Was engine-driven circulated around in the lines cessna 210 landing gear rigging would foul up the should... Ensures the doors and gear swing parts count is way down as well quiet shop should. Opposite door and adjust it the same year it wasnt so in the beginning the! 182B to which was added eventually called Centurion, would become an alluring high-performance load-hauler in simplifying the downlock.... Before attempting adjustments many often traveling long distances to have their rigging and other issues corrected longer! Throttle switches activation design is a matter of fact, the prevailing comment from is...

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