May 11, 2016 · 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. Finally, the Raptor XDX joins the Hustler 2021 zero turn mower lineup as the top of the Raptor residential series. This model features Kawasaki FR engines with up to 24 hp, as well as Hydro-Gear ZT-3100 transmissions and 22″ rear BigBite tires. It also comes with a 48″, 54″, or 60″ cutting deck option, all of which feature 5″ depths.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 ...The Diamondback is a commercially built and consumer priced workhorse. The 23 horsepower Kawasaki FR691V engine and Hydro-Gear ZT-3200 transmission guarantees a fast, smooth ride every time. With a three-year limited warranty, you will come to love the reliability, exceptional value and world-proven performance that Worldlawn provides. 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 ...https://amzn.to/2ElkYnX Gearwrench flex head ratchethttps://amzn.to/2Em8Gf8 Snap Ring pliers sethttps://amzn.to/2YJTFeZ Milwaukee High Torque 1/2" impact M18...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 ...May 11, 2016 · 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. Sep 16, 2015 · 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 ... 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.Mar 19, 2021 · Hydro-Gear ZT 3200 up to 470 lb-ft, up to 9 mph, Total Weight 1500 LBS, Axle Shaft Diameter 1.125 in. Standard-Duty commercial, multiple lawns up to 10 hours a day. The List of 48-52 inch Zero Turn Mowers. I will break up the list below into three different types of residential zero-turn mowers 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... Sep 16, 2015 · 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 ... The ZT-2800, ZT-3100 and ZT-3200 are self contained units designed for the transfer and control of power. They provide an infinitely vari-able speed range between zero and maximum in both forward and reverse modes of operation. The ZT-2800, ZT-3200 and ZT-3100 transaxle uses a variable displacement pump with a maximum displacement of 10cc per ...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 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 ... Mar 19, 2021 · Hydro-Gear ZT 3200 up to 470 lb-ft, up to 9 mph, Total Weight 1500 LBS, Axle Shaft Diameter 1.125 in. Standard-Duty commercial, multiple lawns up to 10 hours a day. The List of 48-52 inch Zero Turn Mowers. I will break up the list below into three different types of residential zero-turn mowers EZ 5221 KAA mod# 968999292 Mfg 2006 Hydro gear #Zh-GCEE-1BXX EZ 5221 KAA mod####-##-#### Mfg 2006 Hydro gear #Zh-GCEE-1BXX Have leak in right side pump on bottom that looks like a plate removeable by two bolts, below pulley/fan assembly, the same right side pum … 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 ... Mowers Direct | Lawn Mowers & Lawn Equipment 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.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... Finally, the Raptor XDX joins the Hustler 2021 zero turn mower lineup as the top of the Raptor residential series. This model features Kawasaki FR engines with up to 24 hp, as well as Hydro-Gear ZT-3100 transmissions and 22″ rear BigBite tires. It also comes with a 48″, 54″, or 60″ cutting deck option, all of which feature 5″ depths.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 StatusThe 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 ...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 ... 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 ...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. 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...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.Conclusion. Overall, hydro gear ZT 3100’s performance is rather better than other transaxles. Because it shows the common problems like oil leaking, noisy transmissions, overheating, lack of power, etc. that you may face in any other machines. You can avoid these problems with proper maintenance.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 ...The ZT-5400 Powertrain utilizes an internal in-line fl oating disc brake controlled by a “cam” style actuating arm. INTRODUCTION The purpose of this manual is to provide in-formation useful in servicing the Hydro-Gear ® ZT-5400 Powertrain™ Hydrostatic Transaxle. This manual includes the ZT-5400 Powertrain’s 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 Parts Potential Fix: Refill the fuel tank with hyaluronic fluid every 90 hours. A damaged drive belt falls short of the required tension. Tighten the belt applying more force. If it does not work then change the damage belt. To Increase the service life of the transmission system, replace the damaged parts. Regular maintenance is vital in this case.Diamondback. The Diamondback is a commercially built and consumer priced workhorse. The 23 horsepower Kawasaki FR691V engine and Hydro-Gear ZT-3200 transmission guarantees a fast, smooth ride every time. With a three-year limited warranty, you will come to love the reliability, exceptional value and world-proven performance that Worldlawn ...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 StatusJan 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. We would like to show you a description here but the site won’t allow us.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. 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.The Hydro gear zt 3400 transmission system is the improvised version of the zt 3100 and zt 3200 models. But it still lacks in many aspects. Some of the operators had a hard time engaging the transmission system. So what are some of the most common Hydro gear zt 3400 problems? Moreover, transmission slippage added fuel to the fire. Jan 29, 2014 · The ZT-3400 system offers an axel shaft diameter of 1.125 inches, which is perfectly in line with industry standards and expectations. Buyers who choose either the ZT-3400 HS or ZT-3400 U can choose from three different axle end choices: Tapered, 4-bolt flange, or 5-bolt flange. This makes the system effortlessly compatible with most commercial ... 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. ZT-3200 ™ Commercial grade transaxle for lighter weight applications ... [email protected]. 1411 South Hamilton Street Sullivan, Illinois 61951 . Navigation ...Find and download Service & Repair Manuals that contain valuable information. about your Hydro-Gear Products. In these manuals you will find: Product Identification Information. Diagrams. Parts List. Specifications. Troubleshooting. Service & Maintenance Information. The ZT-5400 Powertrain utilizes an internal in-line fl oating disc brake controlled by a “cam” style actuating arm. INTRODUCTION The purpose of this manual is to provide in-formation useful in servicing the Hydro-Gear ® ZT-5400 Powertrain™ Hydrostatic Transaxle. This manual includes the ZT-5400 Powertrain’s Hydro-Gear ZT-3100 Problems. 1. Leaking Oil. One of the common problems of the Hydro-Gear ZT-3100 is oil leakage. Oil leakage can occur due to damaged seals, gaskets, or cracks in the transaxle housing. Leaking oil not only affects the performance of the mower but also poses an environmental hazard. 2.Business hours Monday to Fridays: 8:30 am - 5:00 pm. EST - Call us at (561) 880-4022 Check Order Status. Sign In or Register. Cart. Seal Kit. Center Section Kit. Filters. ZT 3200 Parts Lookup. Policies. Reviews. 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 ...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 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 ...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.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 ... 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 PartsDec 25, 2018 · 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 ZT-3100 Problems. 1. Leaking Oil. One of the common problems of the Hydro-Gear ZT-3100 is oil leakage. Oil leakage can occur due to damaged seals, gaskets, or cracks in the transaxle housing. Leaking oil not only affects the performance of the mower but also poses an environmental hazard. 2.He stated that the best thing for preventative maintenance was to cut you mfg recommended interval in half….and not expect much more than 1000hrs of service of the ZT2800-ZT3100 transaxles. Longevity goes up from there with ZT-3400 etc but not by all that much. Conversely ZT-2200 etc and lower, the average is a couple of hundred hours.Mulmur, Ontario CANADA. Tractor. Hustler Fastrac Super Duty 48". Hello Buggs, Well I went with the zt3100 on my hustler, currently at 186 hr with a change on oil and filter (cost was over 160$ in material labour on top) but bad experience with the JD units in the past with the Tuff Torq units in the area.The ZT-3400 system offers an axel shaft diameter of 1.125 inches, which is perfectly in line with industry standards and expectations. Buyers who choose either the ZT-3400 HS or ZT-3400 U can choose from three different axle end choices: Tapered, 4-bolt flange, or 5-bolt flange. This makes the system effortlessly compatible with most commercial ...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 ...Jan 27, 2021 · Finally, the Raptor XDX joins the Hustler 2021 zero turn mower lineup as the top of the Raptor residential series. This model features Kawasaki FR engines with up to 24 hp, as well as Hydro-Gear ZT-3100 transmissions and 22″ rear BigBite tires. It also comes with a 48″, 54″, or 60″ cutting deck option, all of which feature 5″ depths. 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.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 ...We would like to show you a description here but the site won’t allow us.May 10, 2019 · Mulmur, Ontario CANADA. Tractor. Hustler Fastrac Super Duty 48". Hello Buggs, Well I went with the zt3100 on my hustler, currently at 186 hr with a change on oil and filter (cost was over 160$ in material labour on top) but bad experience with the JD units in the past with the Tuff Torq units in the area. 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) 728-2581.9,474. Oct 5, 2019 / HydroGear ZT-3100 Cavitation problems! #6. A more high pitched whine is normal for most hydraulic system pumps. the deeper growling type noise is more common with internal damage. The drive shouldn't be that hard to purge. Jack the wheel up, pull the bypass and start the mower at idle.The ZT-3100 offers fast and easy maintenance with features like external oil filter and 1” axle shaft. It has a high efficiency 10cc pump with external filter for great durability. The ZT-3100 hydrogear is a system that provides pressurized water for verious applications. Despite of having heavy features, this machine can have start showing problems… Read More »Hydrogear ZT-3100 problemsMowers Direct | Lawn Mowers & Lawn Equipment 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.Hydro-Gear Drivetrain Solutions | HomeKeep 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 ...Maintenance Tips for Hydro Gear EZT 2200. 1. Fluid Check. – Regularly check the fluid level in the transaxle. – Top up the fluid as needed to the recommended level. – Use the manufacturer’s recommended type of fluid. 2. Fluid Change. – Change the transmission fluid at regular intervals.Maintenance Tips for Hydro Gear EZT 2200. 1. Fluid Check. – Regularly check the fluid level in the transaxle. – Top up the fluid as needed to the recommended level. – Use the manufacturer’s recommended type of fluid. 2. Fluid Change. – Change the transmission fluid at regular intervals. 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.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.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.
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;. Fomtgyuw
I have the transaxle removed from my Husqvarna YTH20K46 lawn tractor to repair broken mount that axle bolts to. It is equipped with the hydro gear T2 transaxle. Thought I might drain and refill the fluid at this point with almost 400 hours on the unit. I managed to find a service manual that says I need just over 2qts of 20w50 motor oil.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...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 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...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 ...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. Maintenance Tips for Hydro Gear EZT 2200. 1. Fluid Check. – Regularly check the fluid level in the transaxle. – Top up the fluid as needed to the recommended level. – Use the manufacturer’s recommended type of fluid. 2. Fluid Change. – Change the transmission fluid at regular intervals. Oct 22, 2021 · These transmission systems are Dual Pump & Motor, Hydro-Gear ZT-2800, Hydro-Gear ZT-3100, Hydro-Gear ZT-3400, and Hydro-Gear ZT-5400. However, although all dive systems also feature commercial transmissions with stronger axles, yet, among them, the Hydro-Gear ZT-5400 transaxles provide a much better Standard-Duty with a commercial-grade drive ... Both are rated commercial by Hydro Gear. 3100 is entry level with 350lb-ft of output torque and gross vehicle weight of 1,200lbs vs 3400 (500 lb-ft and 1,600lb). The ZT3,400 usually equipped on heavier mowers. For personal use, any of these would serve you well for years with proper maintenance. Reply.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.Nov 29, 2021 · Had an issue with my Gravely Zero-Turn mower where a small part broke off inside the Hydro-Gear Hydrostatic ZT-3100 transmission pump on the left side and the machine would not drive as a result ... The Hydro gear zt 3400 transmission system is the improvised version of the zt 3100 and zt 3200 models. But it still lacks in many aspects. Some of the operators had a hard time engaging the transmission system. So what are some of the most common Hydro gear zt 3400 problems? Moreover, transmission slippage added fuel to the fire. .