ZT-2200 (EZT®) - Hydro-Gear. The EZT® is a proven performer and our most popular, residential-grade integrated transaxle unit. It delivers surprising power in a compact package thanks to the capable 10cc motor and 10cc pump and 1” axle shaft. The low-maintenance design means less time on upkeep and more time on the grass.Sep 16, 2015 · It uses dual ZT3400 Hydro Gear pumps. I have serviced this unit regularly, and it is well maintained. The Hydro Gear oil was changed at 96 hours and was due again at 500 hours. Last week I began losing power on the left side, especially on an incline when it is under a load. Consult Hydro-Gear's ZT-3100 ™ brochure on DirectIndustry. Page: 1/2. Smooth & quiet operation An entry-level commercial-grade transaxle Durable 1 inch axle for heavy loads High efficiency 10cc pump & 16cc motor Included shock valves to protect the system and extend its life Nov 22, 2013 · 31. Messages. 295. Nov 22, 2013 / HydroGear ZT-2800 Oil Change Issue. #1. I have a question for you experts. This May I purchased a new Toro MX5060 with the ZT-2800. Being anal, I decided to change the oil / filters on the Hydro Drives. Everything went smoothly (except for one really stubborn oil filter), until I went to purge the units. Price Comparison: HydroGear is way more expensive than the Tuff Torq TZT7-M. They cost around $600-700 while Tuff Torq TZT-M approximately costs around $300-400. 5. Maintenance: Many people mistake non-servicable as non-rebuildable. Hydros like the EZT (HydroGear) and the Tuff Torq TZ17-M are non-serviceable.The model and configuration of the ZT-2200 and ZT-2100 can be determined from the label shown in Figure 3. Figure 3. Configuration Label HYDRO-GEAR Assembled in USA ear Built ZC-BUBB-2L5B-2LPX 8 275 B1 476 -001 BOM Model Number Date (Julian- Day of year) Serial Number (unique for that model - for that day) Type of Product and Build Information Hydro-Gear Central Service Distributor. Many distributors will be hosting certi fi cation testing. These study guides will cover most of the prod-ucts and manufacturers in our industry. For more information about Hydro-Gear or our products, please contact your Central Service Distributor, or call our Customer Service Depart-ment at (217) 728-2581.Jan 22, 2014 · The ZT-2800 has a maximum forward speed of 8 miles per hour, while the ZT-3100 goes a bit faster at a maximum speed of 9 miles per hour. Both systems can handle pretty heavy vehicles, but the ZT-3100 wins out with a maximum vehicle weight of just about 1,200 pounds. By comparison, the ZT-2800 can handle only about 1,000 pounds before its ... 1. ISX™ 3300 Zero Turn Mowers. The ISX 3300 features a powerful vanguard engine. This engine also has been used on several other Ferris lawnmowers that have come out in the past. Its wide 61-inch cutting deck is what enables the ISX mower to provide you with a top-notch cutting performance.Things to do on a rain daytotal rebuild leaking hydro gear zt3100Hydro gear zt 2800 zt 3100 leaking transmision out of parking brake o rings removal and in...The ZT-2800 has a maximum forward speed of 8 miles per hour, while the ZT-3100 goes a bit faster at a maximum speed of 9 miles per hour. Both systems can handle pretty heavy vehicles, but the ZT-3100 wins out with a maximum vehicle weight of just about 1,200 pounds. By comparison, the ZT-2800 can handle only about 1,000 pounds before its ...ZT3400 Hydro Gear problems. I have a 2013 Dixie Chopper Magnum 2250 with a 24 HP Kawasaki engine. It has 439 hours on it. It uses dual ZT3400 Hydro Gear pumps. I have serviced this unit regularly, and it is well maintained. The Hydro Gear oil was changed at 96 hours and was due again at 500 hours. Last week I began losing power on the left side ...I'm looking at the gravely pro turn 160 and ferris 700is that both have the Dual Hydro-Gear ZT-3400 transaxles with 7" mounted cooling fans. Versus a grasshopper 226v with Smooth H1 hydrostatic pump and wheel motor drive system with cooling fans and 7 micron absolute filter. And a scag tiger cat with Dual Pumps; 10cc displacement, Hydro-Gear.Sep 3, 2012 · To put it in layman's terms, :smile: The hydro gears transaxles setups are all basically the same. The ZT-3100/3400/5400 are all commercial units. The differences are the sizes of the pumps and motors in each. Check there site Hydro-Gear Hydrostatic Drives Transmissions and Transaxles it can or will explain it better than than anyone can. BigFish · #3 · Mar 17, 2017. It's not particularly common. I've repaired & re-sealed a slew of H-G pumps, but don't recall ever having to mess with that seal exclusively. Always replaced as part of the rebuild/reseal. Hit it with some carb spray and a brush/air and make sure that's where it's leaking from.Jan 2, 2015 · Reply Save Like 1 - 5 of 5 Posts V viper8524 · #2 · Jan 3, 2015 Did the new charge pump come in a kit with a new heavy duty cast cover? One thing that is very common on most hydrogear pumps and UHTs is when techs and owners remove the charge pumps they dont reinstall the covers correctly. Hydro-Gear is the world’s leading manufacturer of drivetrain solutions for everything from industrial machines to residential mowers. ... ZT-3100 ; ZT-3200 ; ZT ... 1,685. Nov 22, 2018 / ZT 3400 Hydrogear Longevity. #6. I've only got 300 hours on my 3400 trans with no issues so I don't think that helps. But I wanted to say that I am very impressed with how smoothly the hydros operate on my Bob-Cat. Much smoother than the pump and wheel motor combo on my Exmark.use in small engines, riding mower engines, tractor engines and other products that use Hydro-Gear. Category HYDRO GEAR TRANSAXLE ZT-3100 Business hours Monday to Fridays : 8:30 am - 5:00 pm. EST - Call us at (561) 880-4022 Check Order Status Feb 28, 2019 · Fact: Hydro-Gear recommends an initial filter AND OIL change at between 75 and 100 hours and every 400 hours thereafter for their ZT-2800, ZT-3100, ZT-3200 and ZT-3400 transaxles. Fact 2: For all Bob-Cat zero-turn mowers "the transaxle / pumps / wheel motors will have a 2 year warranty... As it was mentioned, obviously, that is not a drain plug but rather the brake shaft. Hydro-Gear has a few different service kits depending on the specific trans setup (brake arm inboard or outboard) to take care of the leak. It appears mower OEM's (Bob-Cat at least) offers the kits also for their mowers.Fact: Hydro-Gear recommends an initial filter AND OIL change at between 75 and 100 hours and every 400 hours thereafter for their ZT-2800, ZT-3100, ZT-3200 and ZT-3400 transaxles. Fact 2: For all Bob-Cat zero-turn mowers "the transaxle / pumps / wheel motors will have a 2 year warranty...Keep your machine's transaxles performing at optimum levels with routine maintenace. Hydro-Gear helps you take the guess-work out of which oil and oil filter to use in your Hydro-Gear ZT-3200 transaxles with our Hydro-Gear Commercial Transaxle Oil Service Kit. With this all-in-one kit you can quickly and easily perform an oil change on both ...Loss of power is another common problem that affects the performance of the Hydro-Gear ZT-3100. Hydraulic pumps that are out of commission, damaged gears, or clogged filters may be to blame. Loss of power can make the machine sluggish and affect its ability to handle heavy loads. 4. Overheating. May 8, 2013 / 2800 hydrogear transmission will not work. #2. Did you bleed the air out of the pump, If not you need to jack the mower up, pull the bypass valve, run it forwards and backwards, then disengage the bypass and run forward and backwards. then see if it will work. If you had the charge pump off, you didn't get it mounted 180 degrees ...Sep 1, 2021 · ZT-2800, ZT-3100, ZT-3200. Search for: Recent Posts. The Show was a Success! Equip Exhibition 2022; ... Hydro-Gear selects Huntingdon, TN for its fourth U.S. location; Aug 24, 2014 · 1 - 10 of 10 Posts. Looks like there around 750$ ouch. Open the bypass on both axles, and cycle the joy sticks a few times with the engine running. Then try it again. I have 600 hrs on a max zoom. My RH hydrostat started to make noise and lost all power. It shudders and has a very distinct whine to it. Thus, am considering something like a Hustler Raptor, 42". Has ZT-2200s. IMO the 1" axle makes me happier. If I really did it, I'd get 2800s - I know. But the Raptor would cut this in 20 minutes giving me less than 20 hours / year on the thing. I don't know what you guys think of those big box JDs with their low-end hydro. Bang for the buck I ...Sep 16, 2015 · It uses dual ZT3400 Hydro Gear pumps. I have serviced this unit regularly, and it is well maintained. The Hydro Gear oil was changed at 96 hours and was due again at 500 hours. Last week I began losing power on the left side, especially on an incline when it is under a load. The pump or motor may become damaged or fail. 1. The transmission may not engage or disengage properly. One of the most common problems with the Hydro Gear ZT 3100 is that it may not engage or disengage properly. This can be caused by a variety of factors, including a damaged pump or motor, a clogged oil filter, or a faulty control valve.Get Hydro-Gear ZT-2800-ZT-3100-ZT-3200 ZT-3400 SN BLN-52441 parts manual. Save time and money with detailed assembly, troubleshooting, and maintenance tips. Business hours Monday to Fridays : 8:30 am - 5:00 pm. EST - Call us at (561) 880-4022 Check Order Status troubleshooting the Hydro-Gear 310-2200 EZT ® Integrated Zero-Turn Transaxle. Also included is a glossary of terms that are frequently used throughout the industry and in Hydro-Gear service publications. Understand-ing terminology is very important! It is necessary, and a good shop practice, that your service area be equipped with the properSmartec ZT-2800e System Production Launches; Huntingdon Factory Gains ISO Certification; New Smartec electric products debut at GIE+EXPO 2021; Hydro-Gear selects Huntingdon, TN for its fourth U.S. locationBigFish · #3 · Mar 17, 2017. It's not particularly common. I've repaired & re-sealed a slew of H-G pumps, but don't recall ever having to mess with that seal exclusively. Always replaced as part of the rebuild/reseal. Hit it with some carb spray and a brush/air and make sure that's where it's leaking from.ZT-2800 Z-T3100 ZT-3200 SERVICE AND REPAIR MANUAL ZH- ZH-GABB-6LDB-27RX Parts & Service Schematic ZH-GABB-ULDB-27RX Parts & Service Schematic ZH-GBBB-6L8B-36LC Parts & Service Schematic ZH-GBBB-6L8B-36LX Parts & Service Schematic ZH-GBBB-6L8B-36XC Parts & Service Schematic ZH-GBBB-6L8B-36XD Partsformation useful in servicing the Hydro-Gear® ZT-2800®, ZT-3100® and ZT-3200TM Integrated Zero-Turn Transaxles. This manual includes the general descriptions, hydraulic schematics, technical specifications, servicing and trouble-shooting procedures for both transaxles. Other than recommended oil and filter changes, ZT-3400® is a mid-sized commercial transmission that performs truck-like work yet delivers unmatched maneuverability in tight spaces. It starts with a strong, high-efficiency 12cc pump, 16cc motor, and sturdy 1-1/8” axle shaft for heavier loads. The Performance Package then adds shock valves to extend system life, durable cut steel gears ... BigFish · #3 · Mar 17, 2017. It's not particularly common. I've repaired & re-sealed a slew of H-G pumps, but don't recall ever having to mess with that seal exclusively. Always replaced as part of the rebuild/reseal. Hit it with some carb spray and a brush/air and make sure that's where it's leaking from.use in small engines, riding mower engines, tractor engines and other products that use Hydro-Gear. Category HYDRO GEAR TRANSAXLE ZT-3100 Business hours Monday to Fridays : 8:30 am - 5:00 pm. EST - Call us at (561) 880-4022 Check Order Status Sep 1, 2020 · Thus, am considering something like a Hustler Raptor, 42". Has ZT-2200s. IMO the 1" axle makes me happier. If I really did it, I'd get 2800s - I know. But the Raptor would cut this in 20 minutes giving me less than 20 hours / year on the thing. I don't know what you guys think of those big box JDs with their low-end hydro. Bang for the buck I ... May 16, 2016 · If it is not, fill to the specifications outlined. in the Check / Fill Transmission Oil Level procedure. Purging Air from the Hydraulic System: 1. Chock the front wheels to prevent the machine from rolling. Raise the rear of the machine so that the vehicle’s rear tires. do not contact the ground. 31. Messages. 295. Nov 22, 2013 / HydroGear ZT-2800 Oil Change Issue. #1. I have a question for you experts. This May I purchased a new Toro MX5060 with the ZT-2800. Being anal, I decided to change the oil / filters on the Hydro Drives. Everything went smoothly (except for one really stubborn oil filter), until I went to purge the units.Jun 1, 2014 · Jun 1, 2014 / Hydraulic oil type. #1. I just read an earlier informative post on changing the hydraulic oil on the Hydro-Gear ZT 3100 trans-axle system. My mower (Gravely) has the ZT 3200 with essentially the same instructions for the procedure in the Gravely Owner's manual. My question concerns the oil that is used. use in small engines, riding mower engines, tractor engines and other products that use Hydro-Gear. Category HYDRO GEAR TRANSAXLE ZT-3200 Business hours Monday to Fridays : 8:30 am - 5:00 pm. EST - Call us at (561) 880-4022 Check Order Status C. cabman77 Discussion starter · Jun 4, 2015. forgive me if this is in the wrong place: i am trying to compare the hydro gear zt2800/zt3100 transmissions to the transmissions now offered in limited-commercial-use John Deere zero turn mowers. I have been unable to find out where the Tuff Torq (Kanzaki) TZT7-D lies in comparison to the hydro ...Jan 2, 2015 · Reply Save Like 1 - 5 of 5 Posts V viper8524 · #2 · Jan 3, 2015 Did the new charge pump come in a kit with a new heavy duty cast cover? One thing that is very common on most hydrogear pumps and UHTs is when techs and owners remove the charge pumps they dont reinstall the covers correctly. Thus, am considering something like a Hustler Raptor, 42". Has ZT-2200s. IMO the 1" axle makes me happier. If I really did it, I'd get 2800s - I know. But the Raptor would cut this in 20 minutes giving me less than 20 hours / year on the thing. I don't know what you guys think of those big box JDs with their low-end hydro. Bang for the buck I ...6. Jun 1, 2014 / Hydraulic oil type. #1. I just read an earlier informative post on changing the hydraulic oil on the Hydro-Gear ZT 3100 trans-axle system. My mower (Gravely) has the ZT 3200 with essentially the same instructions for the procedure in the Gravely Owner's manual. My question concerns the oil that is used.Keep your machine's transaxles performing at optimum levels with routine maintenace. Hydro-Gear helps you take the guess-work out of which oil and oil filter to use in your Hydro-Gear ZT-3200 transaxles with our Hydro-Gear Commercial Transaxle Oil Service Kit. With this all-in-one kit you can quickly and easily perform an oil change on both ...May 30, 2012 · May 31, 2012 / Transmissions choices. #3. WISCOPROUD said: parker is a better trans. Snapper Pro also uses them. Hydro gear 3400 more residential. Parker is intermediate commercial. FYI The ZT-3400 transaxle was designed for larger commercial applications. The ZT-3400´s large 12cc variable displacement seven piston pump and 16cc fixed ... Repeat steps 6 and 7 three times. This purges any air from the hydraulic transmission system. Put the control levers in neutral (N). Shut the engine off and set the parking brake. Check the oil and top off if necessary. Engage transmission. Remove from jackstands, start the engine, and disengage the brake.Apr 28, 2015 · "The ZT-2800, ZT-3100, ZT-3200 and ZT-3400 have an internal cog style parking brake. It is essential to fully disengage the brake prior to operation." Usually, warnings like that in a service manual suggest that this may be a common source of trouble. 6. Jun 1, 2014 / Hydraulic oil type. #1. I just read an earlier informative post on changing the hydraulic oil on the Hydro-Gear ZT 3100 trans-axle system. My mower (Gravely) has the ZT 3200 with essentially the same instructions for the procedure in the Gravely Owner's manual. My question concerns the oil that is used.This video goes over how to change oil and filters on the Hydro Gear ZT-2800, ZT-3100, ZT-3200, ZT-3400, ZT-3600, and ZT-3800. You can save a lot of money by... The model and configuration of the ZT-2200 and ZT-2100 can be determined from the label shown in Figure 3. Figure 3. Configuration Label HYDRO-GEAR Assembled in USA ear Built ZC-BUBB-2L5B-2LPX 8 275 B1 476 -001 BOM Model Number Date (Julian- Day of year) Serial Number (unique for that model - for that day) Type of Product and Build Information Make sure you buy the correct side (LEFT OR RIGHT hand) and the Hydro-Gear Model number must match your old one. $735.95. Free Shipping to 47 contiguous states!!! Qty. Add to cart. LEFT- HAND - HYDRO-GEAR MODEL # ZM-KPEB-3CRA-2GLS ZT 3100 LEFT HAND. SKU: ZM-KPEB-3CRA-2GLS LELF HAND. This transmission has to be installed by a Hydro-Gear ...Sep 25, 2013 · I'm looking at the gravely pro turn 160 and ferris 700is that both have the Dual Hydro-Gear ZT-3400 transaxles with 7" mounted cooling fans. Versus a grasshopper 226v with Smooth H1 hydrostatic pump and wheel motor drive system with cooling fans and 7 micron absolute filter. And a scag tiger cat with Dual Pumps; 10cc displacement, Hydro-Gear. THE BEST BUDGET ZERO TURN FOR LANDSCAPERS. The IS ® 600 is a compact zero turn with the productivity and comfort features landscapers are looking for. Featuring our patented suspension technology, heavy-duty Hydro-Gear ® ZT-3200™ Drive System, and speeds up to 10 mph, this mower can tackle tight spaces while providing maximum ...1 - 10 of 10 Posts. MowDaddy · #2 · Dec 25, 2018. The hydrogear transaxles are capable of 10mph. But the machine they are on may not be. It depends on bladetip speed, and quality of cut. And available power. Pully ratios on mowers are all different. You can't travel faster than the deck can process clippings.Hydro-Gear Drivetrain Solutions | HomeConsult Hydro-Gear's ZT-3100 ™ brochure on DirectIndustry. Page: 1/2. Smooth & quiet operation An entry-level commercial-grade transaxle Durable 1 inch axle for heavy loads High efficiency 10cc pump & 16cc motor Included shock valves to protect the system and extend its life Product Details. Keep your machine's transaxles performing at optimum levels with routine maintenace. Hydro-Gear helps you take the guess-work out of which oil and oil filter to use in your Hydro-Gear ZT-3600 transaxles with our Hydro-Gear Commercial Transaxle Oil Service Kit. With this all-in-one kit you can quickly and easily perform an oil ...Hydro Gear Transmission Filter. Larger Photo. Part# B1HP600. Hydro-Static Transmission Filter used by Hydro Gear Transaxle models: ZT-2800, ZT-3100, ZT-3200, ZT-3400, and ZT-3600. Replaces Ariens/Gravely OEM# 21545100. Replaces Bad Boy OEM# 063-1050-00. Replaces Bush Hog OEM# 50052929. Pump & Motor Since ZT-3200 is for lightweight vehicles and ZT-3400 is for mid-level commercial vehicles, they have different motors and pump sizes. Hydro-Gear ZT-3200 comes with a high-efficiency 10 cc pump and 16 cc motor. In contrast, ZT-3400 comes with a 12 cc pump and 16 cc motor for any lawnmower.Hydro Gear ZT-5400 Transaxle. DESCRIPTION. The ZT-5400 Powertrain® is Hydro Gear's largest and most capable transaxle. Providing speeds up to 18 mph, this system powers through the largest jobs. FEATURES. Heavy duty 1.375 in axle. Integrated 16cc pump & 21cc motor. Standard shock valves for added system protection. ZT 5400 BROCHURE.Description. ZT-3100® DESCRIPTION The ZT-3100® is Hydro-Gear's entry-level commercial-grade transaxle. Providing all the power you've come to expect from our commercial-grade products. FEATURES Commercial-grade design for heavier loads Standard charge pump for increased performance External oil filter for easier maintenance. If I recall, Hustler calls for a hydro oil and filter change every 200 hours, according to their maintenance schedule. Hydro-Gear calls for a hydro oil and filter change every 400 hours, according to their service manual. I plan on a 200 hour schedule for my Toro. This is right out of Hydro-Gear’s 2021 service and repair manual on Page 9.Step-by-step instructions for purging the air from Hydro-Gear transaxles after servicing or changing the oil. For more information, visit your local dealer o...Dec 30, 2013 · The ZT-2800 has 10cc variable displacement seven piston pump and a 16cc fixed displacement seven piston motor and are serviceable transmissions with the filters. They use the zt2800 in there high end residential along at times the 3100. Whether there worth the extra money for you or not is up to you. I can tell you I use the ZT 2800 's in my ... A premium 23 HP/726cc Kawasaki FR691V twin-cylinder OHV engine, commercial-grade power TESTING 101. Dual hydrostatic transmissions allow for quick and effortless 7 MPH forward (3.5 MPH reverse) ground speeds TESTING 102. 50-in. AeroForce fabricated deck that delivers a signature cut TESTING 103.Hydro Gear ZT-3400 Transaxle. DESCRIPTION. The ZT-3400® was designed for mid size commercial vehicles delivering up to 500 ft/lbs of output torque. Capable of taking on tough jobs, the ZT-3400 is perfect for vehicles up to 1600 lbs. FEATURES. Durable 1.125 in axle for heavier loads. Standard shock valves for added system protection. External ...Nov 20, 2018 · Step-by-step instructions for changing the oil in select Hydro-Gear transaxles. This video applies to ZT-2800, ZT-3100, ZT-3200, ZT-3400, and ZT-3600. For mo... Feb 28, 2019 · Fact: Hydro-Gear recommends an initial filter AND OIL change at between 75 and 100 hours and every 400 hours thereafter for their ZT-2800, ZT-3100, ZT-3200 and ZT-3400 transaxles. Fact 2: For all Bob-Cat zero-turn mowers "the transaxle / pumps / wheel motors will have a 2 year warranty... Mar 22, 2021 · Use only SAE 20W50 SL/SM service motor oil. Initial system oil and filter change must be after the first 75 hours of use or 1 year whichever comes first. Thereafter, replace filter and oil in each transmission every 2 years or 200 hours, whichever comes first. NOTE: The filter guard must be removed to access filter. Inexpensive 54 inch stamped deck ONLY! Hydro-Gear ZT 2200 (EZT) up to 215 lb-ft, up to 7 mph, Total Weight 900 LBS, Axle Shaft Diameter 1.00 in. Residential mowers, flat/gently sloping, 2-3 bin baggers, 3-5 acres at a time. (Comparable to the K46 in your lawn tractor but with stronger axles)Loss of power is another common problem that affects the performance of the Hydro-Gear ZT-3100. Hydraulic pumps that are out of commission, damaged gears, or clogged filters may be to blame. Loss of power can make the machine sluggish and affect its ability to handle heavy loads. 4. Overheating. C. Choppin · #10 · Jun 8, 2018. I have had both and the unitized Parker 16cc are way more responsive and take less power to run than the 16cc pump and wheel motors. You can push full sticks fast with the unitzed on my Spartan the it hardly changes the sound of the motor.1 - 10 of 10 Posts. Looks like there around 750$ ouch. Open the bypass on both axles, and cycle the joy sticks a few times with the engine running. Then try it again. I have 600 hrs on a max zoom. My RH hydrostat started to make noise and lost all power. It shudders and has a very distinct whine to it.To fix this problem, it is important to check the fluid levels and replace the fluid if necessary. If the problem persists, inspecting the shift linkage and shift forks can help to identify the underlying cause. Overheating: Finally, overheating is another issue that users may encounter with the Hydro-gear zt-3100.Hydro Gear ZT-5400 Transaxle. DESCRIPTION. The ZT-5400 Powertrain® is Hydro Gear's largest and most capable transaxle. Providing speeds up to 18 mph, this system powers through the largest jobs. FEATURES. Heavy duty 1.375 in axle. Integrated 16cc pump & 21cc motor. Standard shock valves for added system protection. ZT 5400 BROCHURE.ZT-2200 (EZT®) - Hydro-Gear. The EZT® is a proven performer and our most popular, residential-grade integrated transaxle unit. It delivers surprising power in a compact package thanks to the capable 10cc motor and 10cc pump and 1” axle shaft. The low-maintenance design means less time on upkeep and more time on the grass.Keep your machine's transaxles performing at optimum levels with routine maintenace. Hydro-Gear helps you take the guess-work out of which oil and oil filter to use in your Hydro-Gear ZT-3200 transaxles with our Hydro-Gear Commercial Transaxle Oil Service Kit. With this all-in-one kit you can quickly and easily perform an oil change on both ... . 9,474. Oct 5, 2019 / HydroGear ZT-3100 Cavitation Smartec ZT-2800e System Production Launches; Huntin May 10, 2010 · The 3400 is larger in shaft size and in displacement. and is rated full commercial. My Gravely guy, who is technically proficient, told me that the the 2800 has stamped gears, and the 3100 and up have cut gears, which theoretically should make them more rugged. Here is a link that relates to that subject. Many of the Hydrostats are made by Hydro-Gear. Models like the ZT-3100 and the ZT-3400 will have upgraded axles and bearings and will be better suited for long hours of commercial use. Hydro-Gear also offers larger and more productive commercial models including the ZT-5400 that offers two-speed operation up to 18 miles per hour for transporting. Locking Differentialsformation useful in servicing the Hydro-Gear® ZT-2800®, ZT-3100® and ZT-3200TM Integrated Zero-Turn Transaxles. This manual includes the general descriptions, hydraulic schematics, technical specifications, servicing and trouble-shooting procedures for both transaxles. Other than recommended oil and filter changes, Hydro-Gear Drivetrain Solutions | Home ...
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