Cub Cadet is a well-known brand of outdoor power equipment, and the RZT 50 is one of their popular zero-turn mowers.
However, like with any piece of machinery, there are bound to be some problems that arise during use.
In this post, we will go over some of the most common Cub Cadet RZT 50 Problems and also give the solutions.
Let’s jump in.
Cub Cadet RZT 50 Problems
1. Engine problems
One of the most common issues reported with the RZT 50 is problems with the engine. This can include difficulty starting the engine, stalling while in use, and a general lack of power.
These problems can be caused by a variety of issues, such as a clogged air filter, dirty spark plug, or low oil levels.
How to Fix:
To fix these problems, make sure to check the air filter and replace it if it’s dirty, clean or replace the spark plug, and ensure that the oil levels are at the proper level.
2. Deck problems
Another common issue with the RZT 50 is problems with the mower deck. This can include difficulty engaging the deck, uneven cutting, and strange noises while mowing.
These problems can be caused by a variety of issues, such as worn blades, a damaged spindle, or a problem with the belt.
How to Fix
To fix these problems, make sure to check the blades and replace them if they’re worn, check the spindle for damage, and ensure that the belt is properly tensioned.
3. Steering problems
Some users have reported issues with the steering on the RZT 50, such as difficulty turning or a feeling of looseness in the steering wheel.
These problems can be caused by a variety of issues, such as a problem with the steering wheel, worn steering bushings, or a problem with the steering gear.
How to Fix
To fix these problems, check the steering wheel for any damage or wear, check the steering bushings, and check the steering gear for any damage or wear.
4. Electrical problems
Some users have reported issues with the electrical system on the RZT 50, such as lights not working or the mower not starting.
These problems can be caused by a variety of issues, such as a problem with the battery, a problem with the alternator, or a problem with the wiring.
How to Fix
To fix these problems, check the battery and make sure it’s fully charged, check the alternator and make sure it’s working properly, and check the wiring for any damage or wear.
Read Why Does My Cub Cadet Keep Dying?(7 Reasons + Solutions)
5. Clipping disposal problems
Some users have reported issues with the clipping disposal system on the RZT 50, such as clumps of grass not being properly discharged, or clippings getting stuck in the discharge chute.
These problems can be caused by a variety of issues, such as a blockage in the discharge chute, or a problem with the blades.
How to Fix
To fix these problems, make sure to clear any blockages from the discharge chute and check the blades for damage or wear.
| Problem | Possible Causes | Solutions |
| Engine problems | Clogged air filter, dirty spark plug, low oil levels | Check the air filter and replace if dirty, clean or replace spark plug, ensure oil levels are at the proper level |
| Deck problems | Worn blades, damaged spindle, problem with belt | Check blades and replace if worn, check spindle for damage, ensure belt is properly tensioned |
| Steering problems | Problem with steering wheel, worn steering bushings, problem with steering gear | Check steering wheel for damage or wear, check steering bushings, check steering gear for damage or wear |
| Electrical problems | Problem with battery, alternator, or wiring | Check battery and ensure it’s fully charged, check alternator and ensure it’s working properly, check wiring for damage or wear |
| Clipping disposal problems | Blockage in discharge chute, problem with blades | Clear any blockages from discharge chute, check blades for damage or wear |
Maintenance Tips for Cub Cadet RZT 50
1. Regularly check and change the oil
The oil in your mower’s engine should be changed at least once a year, or more often if you use the mower frequently.
2. Keep the air filter clean
A dirty air filter can restrict the airflow to your engine, causing it to lose power and potentially causing damage. Check the air filter regularly and replace it as needed.
3. Keep the blades sharp
Dull blades can cause uneven cutting and can make your mower work harder than it needs to. Sharpen or replace the blades as needed.
4. Check and tighten all the bolts and nuts
Over time, bolts and nuts can become loose, which can lead to vibration and other problems. Check all the bolts and nuts on your mower regularly, and tighten any that are loose.
5. Check the tire pressure
Keep the tires of your RZT 50 at their recommended pressure, as underinflated tires can cause problems with steering and handling.
6. Maintenance of the Electricals
Check battery terminals for corrosion and clean them, check for the proper charging of the battery, check wiring for any damages or wear and check if all lights are working properly.
Read 15 Common Cub Cadet SRC 621 Problems(With Solutions)
7. Service the Deck
Check for any damage or wear to the deck and the spindles, check the levelness of the deck, and adjust if necessary.
8. Lubrication of moving parts
lubricate all moving parts like spindles, wheels, and steering. This can help extend the life of your mower’s moving parts.
9. Read the manual
Make sure to read the operator’s manual that came with your mower and follow all the recommended maintenance schedules and procedures.
Cub Cadet RZT 50 PTO Clutch Problems
The Power Take-Off (PTO) clutch is an important component of the Cub Cadet RZT 50 that enables the mower deck to engage and disengage.
If the PTO clutch is not working properly, it can cause a variety of problems, including difficulty engaging the mower deck and uneven cutting.
Here are some common PTO clutch problems and possible solutions for the Cub Cadet RZT 50
1. PTO clutch not engaging
This can be caused by a problem with the clutch itself, such as worn or damaged parts, or by a problem with the wiring or electrical switch.
How to Fix
To fix this problem, check the clutch for any signs of wear or damage, and replace it if necessary. If the clutch appears to be fine, check the wiring and electrical switch for any issues.
2. PTO clutch slipping
This can be caused by worn or damaged friction discs inside the clutch, or by a problem with the belt.
How to Fix
To fix this problem, check the friction discs inside the clutch and replace them if they’re worn or damaged. Also, make sure the belt is properly tensioned and replace it if necessary.
3. PTO clutch making noise
This can be caused by a problem with the clutch or with the belt.
How to Fix
To fix this problem, check the clutch for any signs of wear or damage and replace it if necessary.
Make sure the belt is properly tensioned and replace it if necessary.
4. PTO clutch hard to engage
This can be caused by worn or damaged parts inside the clutch, or by a problem with the linkage.
How to Fix
To fix this problem, check the clutch for any signs of wear or damage and replace it if necessary. Also, check the linkage for any problems, including bent or missing parts.
Read Will a Bad PTO Clutch Cause Power Loss?(Explained)
How to Fix Cub Cadet RZT 50 weak Left Side
- Check the mower deck – Make sure that the mower deck is level and that the height of the deck is adjusted correctly. If the deck is not level, you may need to adjust the height of one or more of the deck wheels.
- Check the blades – Make sure that the blades are sharp and in good condition. If the blades are dull or bent, they may not be cut evenly, causing the problem.
- Check the drive belt – Make sure that the drive belt is properly tensioned and in good condition. If the belt is loose or worn, it may not be transmitting power to the left side of the mower deck evenly, causing the problem.
- Check the spindle – Make sure that the spindle is not damaged or worn, if there is damage or wear it can cause the blade to not rotate correctly and cause uneven cutting.
- Check the tires – Make sure that the tires are at their recommended pressure, as underinflated tires can cause problems with steering and handling.
- Check the suspension – If the suspension system is worn or damaged it may cause the mower deck to tilt to one side or the other and cause the weak side to cut.
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Cub Cadet RZT 50 transmission Problems
| Problem | Description | Possible Causes | Solutions |
|---|---|---|---|
| Loss of Drive | Mower does not move forward or backward when the controls are engaged. | – Drive belt issues | – Check and replace damaged drive belts |
| – Transmission fluid low | – Top up transmission fluid if necessary | ||
| – Damaged transmission components | – Inspect and replace damaged parts | ||
| Erratic Movement | Mower moves unevenly or unpredictably when the controls are engaged. | – Belt slipping or misaligned | – Adjust or replace belts as needed |
| – Hydrostatic linkage issues | – Check and adjust hydrostatic linkage | ||
| – Air in the hydraulic system | – Bleed air from the hydraulic system | ||
| Noise from Transmission | Unusual noises (grinding, whining, clunking) coming from the transmission area. | – Worn or damaged gears | – Inspect and replace worn or damaged gears |
| – Low transmission fluid | – Check and top up fluid levels if needed | ||
| – Loose or damaged components | – Tighten or replace loose/damaged parts | ||
| Poor Performance | Mower struggles to climb slopes, lacks power, or operates at a reduced speed. | – Worn drive belts | – Replace worn drive belts |
| – Slipping transmission | – Adjust or replace transmission components | ||
| – Engine issues (low power, misfires) | – Address engine problems affecting performance | ||
| Fluid Leaks | Transmission fluid leaks observed underneath the mower. | – Damaged seals or gaskets | – Replace damaged seals or gaskets |
| – Loose connections or fittings | – Tighten connections or replace fittings | ||
| – Overfilled transmission fluid | – Drain excess fluid if overfilled |
Final Remarks
The Cub Cadet RZT 50 is a high-quality piece of outdoor power equipment that can provide many years of reliable use. However, like with any machinery, problems may arise during use.
By understanding some of the common issues that users have reported, as well as some possible solutions, you can help ensure that your RZT 50 continues to run smoothly.
Regular maintenance and attention to the equipment as well as following the instructions in the operator’s manual will also help to prevent problems from arising.
If you encounter any problems that you cannot solve, it’s always best to consult the service center or professional for assistance.
FAQ
Cub Cadet RZT 50 is not starting?
There could be several reasons why your Cub Cadet RZT 50 is not starting. Some common issues include a dead battery, a faulty ignition switch, a clogged fuel filter, or a problem with the spark plug.
Check these components to ensure they are functioning properly. If the problem persists, it is recommended to consult a qualified technician.
Cub Cadet RZT 50 poor cutting performance?
Poor cutting performance can be attributed to a variety of factors. One possible cause is a dull or damaged cutting blade.
Check the blade for any signs of wear and tear and replace it if necessary. Also, a clogged or obstructed cutting deck can lead to subpar cutting performance.
Ensure the deck is clean and free from debris. Uneven tire pressure or incorrect cutting height adjustments can also affect the cutting quality.
Verify that the tires are properly inflated and adjust the cutting height accordingly.
Cub Cadet RZT 50 is emitting black smoke from the exhaust?
The presence of black smoke from the exhaust of your Cub Cadet RZT 50 is typically a sign of an overly rich fuel mixture.
An obstruction in the air filter, a broken carburetor, or a problem with the fuel system could all be to blame for this.
Clean or replace the air filter, and if the problem persists, it is advisable to have a professional technician inspect and potentially repair the carburetor or fuel system.
Cub Cadet RZT 50 keep stalling during the operation?
Various factors can contribute to frequent stalling. One possibility is a dirty or clogged fuel system, which can disrupt the flow of fuel to the engine. Cleaning or replacing the fuel filter may resolve the issue.
Another potential cause could be a faulty ignition coil or a weak spark plug. Inspect and replace these components if necessary.
Additionally, ensure that the engine is not overheating and that the cooling fins are clean and free from debris.
Cub Cadet RZT 50 hydrostatic transmission is not working?
If you’re experiencing issues with the hydrostatic transmission, it is recommended to check the transmission fluid level first.
Ensure that it is at the appropriate level and that the fluid is clean.
If the fluid appears dirty or low, it may be necessary to drain and replace it.
If the problem persists, it is advisable to consult a professional technician to diagnose and address any potential mechanical issues with the transmission.
Cub Cadet RZT 50 battery is constantly draining?
There are several causes of a battery that consistently drains. One possibility is a faulty charging system, which could be due to a defective alternator or voltage regulator.
Another potential cause is a parasitic drain, where some component or electrical system is drawing power even when the mower is turned off.
It is recommended to have a qualified technician inspect the charging system and perform a parasitic drain test to identify and rectify the issue.
