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Mtd Gold 42" Zero-Turn Mower - Questions & Answers
What could the possible reasons why the pto will not disengage on my MTD 42" Zero Turn Mower.
Basically your PTO is an electro magnetic clutch....when power is applied (12 volts) from the battery, the magnet is energized and the two plates come together and you have then energized your PTO clutch and it should drive the V-belt....so If you disconnect the power to the magnet the magnet becomes denergized and the two plates move away from one another ,thus the v-belt stops turning .
It could be the switch,or more than likely it is a "relay" that has gone bad ,ie, the contacts on the relay have become pitted with use and stick when they get hot from use....thus when you disengage the PTO switch the relay stays in contact thus delivering power to your PTO clutch .....if you have a wiring diagram of your unit you should be able to find the "safety or PTO relay" again this is just my theory!
If you can use a meter,you could check for voltage on the PTO wire when you disengage the PTO switch,if power is still present then we know it's an electrical issue with the switch or relay ,OR some how power is back feeding down this wire that keeps the clutch energized????? Maybe two wires making contact ????
Unfortunately a good small engine mechanic may be the way to go on this repair ......most people have a clutch that won't engage !
I hope this sheds some light on your issue ,Jim
The hydraulics have become very
Oil may be the cause of the problem. Oil expands during heating and at 10hrs of work this is definitely possible. I would advise a quick inspection of the system, for leaks or loose parts. Expansion of oil may cause it to escape from loose clamps/crimps on the hoses or at other parts. The noise may come from loss of pressure due to the reaction of oil. Check your oil seals as well. Check always for visible sign of wear. Other than that is you may have to check for dirt that may have entered the system which may contribute to the noise.
MTD 618-04907A Transmission stuck in reverse
Here are a few things you can check to troubleshoot why your TroyBilt riding mower is stuck in reverse:
- Check the transmission fluid level. The transmission fluid level should be between the "full" and "add" marks on the dipstick. If the fluid level is low, add the specified type and amount of fluid.
- Check the transmission fluid for leaks. If the transmission fluid is leaking, it could be causing the transmission to slip. Repair any leaks and refill the transmission fluid.
- Inspect the transmission linkage. The transmission linkage is a series of cables and rods that connect the transmission lever to the transmission. If the linkage is damaged or misadjusted, it could be causing the transmission to stick in reverse. Inspect the linkage for damage and make sure it is properly adjusted.
- Inspect the transmission gears. The transmission gears are responsible for transferring power from the engine to the wheels. If the transmission gears are damaged, it could cause the transmission to stick in reverse. Inspect the transmission gears for damage and replace any damaged gears.
If you have checked all of these things and the mower is still stuck in reverse, you may need to take it to a qualified mechanic for further diagnosis and repair.
Here are some additional tips for troubleshooting transmission problems:
- When diagnosing a transmission problem, it is important to check the fluid level and for leaks first. Low fluid levels or leaks can cause the transmission to slip, which can lead to other problems.
- If the fluid level and for leaks are okay, then you can start inspecting the transmission linkage and gears. The linkage should be properly adjusted and the gears should not be damaged.
- If you find that the linkage or gears are damaged, then you will need to replace them. You can also try adjusting the linkage if it is not properly adjusted.
- If you have checked all of the above and the mower is still stuck in reverse, then you may need to take it to a qualified mechanic for further diagnosis and repair.
8/26/2023 9:51:26 PM •
Mtd Garden
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Answered
on Aug 26, 2023
Does an MTD model 21AA414A729 use gear oil ?
No, it uses a mineral oil/clay grease.
Owners manual is avaiable for download, no fee.
https://www.mtdparts.com/en_US/prior-year-models/yard-machines-garden-tiller-model-21aa414a729/21AA414A729.html
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The transmission is pre-lubricated and sealed at the factory. It requires no checking unless the transmission is disassembled. To fill with grease, lay the right half of the transmission on its side, add 22 ounces of Benalene 920 grease, and assemble the left half to it. This grease can be obtained at your nearest authorized dealer by ordering part number 737-0300.
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5/13/2023 11:43:44 PM •
Mtd Garden
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Answered
on May 13, 2023
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