Question about Husqvarna Lawn Tractor 48" Deck, 23 Hp, Model# Yth2348

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Engine dies when clutch brake released on husqvarna gth2548

Instructions say to purge transmission by setting brake, place in freewheel, start engine, run in slow mode, then release brake. when I attempt to release brake engine dies. I have mower deck off. is there a sensor switch somewhere, besides the seat? thanks

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  • 95 Answers

First check the seat switch,make sure it is plugged in tightly, these plugs have a safety tab built into them that will cut the engine off if you unhook it,sometimes the plug latch pulls out slightly and this will cut the engine, There are two other switches in the system one on the foot clutch and on on the mower clutch, if you follow the white wire from you ignition switch it will lead you to both of them,check those connections also.

Posted on Jul 31, 2009

  • 1 more comment 
  • ssmolinsky May 05, 2011

    mine had same problem it was a relay that controls the safety switches it is attached to the ignition harnes. before replacing i opened it and taped it closed and problem was solved.part costs $12 bucks

  • James May 13, 2012

    ssmolinsky may have answered my problem, but I need more details or photos of the relay. I just replaced the ignition switch and now I have the problem with the engine dying as soon as I release the clutch. Maybe they sold me the wrong ignition switch? I replaced the plunger safety switch at the clutch, but it didn't fix the problem.

  • Robert Hibbard Jun 30, 2012

    I had this problem, but it was the seat switch connector, not the switch. Trick is that the seat switch is closed by default allowing connection to ground so that PTO and Brake/Clutch safety switches will ground to kill the engine when no one is in the seat. Even if you remove the switch, the circuit is still grounded because of the way the connector is built. So what it needs is circuit open. Until I can find a replacement connector, I simply cut the black and grey wires to the safety switches (black to brake, grey to PTO). Works for now, but not safe....will replace the connector to make it safe again.

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Husqvarna 4623 zero turn mower will not move


Maintanance - How to purge Hydraulic drive system Published 01/13/2010 11:56 AM ' Updated 06/02/2015 02:52 PM
How do I purge the hydraulic system?
Hydrostatic transmissions use oil, under pressure, to provide movement for the tractor. The fluid is pressurized with a pump inside the transmission. If any air is in the fluid, the pump will try to pressurize air. This condition is known as cavitation, and is detrimental to the pump since it allows the pump top operate dry. When the pump cavitates it is not pressurizing any fluid, so the transmission is not able to provide the movement needed.
If your mower is new, or has been stored for a long period (longer than 2 months) the transmission needs to be purged before use. Also, if you experience loss of drive, or slower response, then the transmission should be purged first.
The following procedure will remove trapped air inside the transmission(s).
IMPORTANT: SHOULD YOUR TRANSMISSION REQUIRE REMOVAL FOR SERVICE OR REPLACEMENT, IT SHOULD BE PURGED AFTER REINSTALLATION BEFORE OPERATING THE TRACTOR.
Step 1- Place the rear of the mower safely onto jackstands on a level surface with engine off and parking brake set.

Step 2- Disengage transmission by placing freewheel control, located at the back of the frame, in the freewheeling position.

2a- Mowers with seperate pumps and wheel motors the freewheel is activated by turnign the bypass valves, one on each pump, two full turns.
The oil resevoir needs to be filled to the specifications listed in the owners manual before starting the purge procedure.
Step 3- Sitting in the operators seat(riders), start engine. After the engine is running, move throttle control to slow position. With motion control levers in neutral (N) position, slowly disengage clutch/brake pedal.
Step 4-Move motion control levers to full forward position and hold for five (5) seconds. Move levers to full reverse position and hold for five (5) seconds. Repeat this procedure three (3) times.

NOTE: During this procedure there may be some movement of the drive wheels, but they are not under load. The air is being removed from hydraulic drive system.

Step 5-Move motion control levers to neutral (N) position. Shutoff engine and set parking brake. Check and add oil as needed for units with an oil resevoir.

Step 6-Engage transmission by placing freewheel control into driving position, or by closing the bypass valves on the pumps.
Step 7-Sitting in the operators seat, start engine. After the engine is running, move throttle control to full speed. With motion control levers in neutral (N) position, slowly disengage clutch/brake pedal.

Step 8-Slowly move motion control levers forward, after the tractor moves approximately five (5) feet, slowly move motion control levers to reverse position.
After the mower moves approximately five (5) feet return the motion control levers to the neutral (N) position. Repeat this procedure with the motion control levers three (3) times.

Step 9-Your mower is now purged and now ready for normal operation.For further information or assistance, we recommend contacting your lo

Aug 06, 2016 | Husqvarna Garden

1 Answer

Slow speed on one side.


Check to be sure there is not a lot of grass and debris packed in spaces that prevent proper movement of the control arms.
If the control arms have free range of motion then you will need to check your fluid level and purge the pumps.
To purge the pumps jack the unit up and place on jack stands so that the drive wheels are off the ground. Release the transmissions so that they are in freewheel. Start the unit, release the brake and work the control levers slowly to full forward then full reverse 6 times. Shut the motor off, lock the transmissions back into drive. Start the unit and work the control levers back and forth 6 times again. Take down off the jacks and check fluid level. If there were any air pockets in the pumps this procedure would have purged the air out.

Oct 01, 2012 | Toro Garden

1 Answer

Steps to start Husqvarna YTH2042 mower


here are general starting guidelines for your make but I recomend you go to the llink i am supplieing, pick the link that is for your year and download it so you will have a copy. you will see each link has a year and month of each model. that information should be located on you mower, if a rider look under the seat. please contact me for more help. Thank you http://www.husqvarna.com/us/homeowner/support/download-manuals/?query=YTH2042&types=O
TO START ENGINE (See Fig. 3) When starting the engine for the first time or if the engine has run out of fuel, it will take extra cranking time to move fuel from the tank to the engine. • Be sure freewheel control is in the transmission engaged position. • Sit on seat in operating position, depress brake pedal and set parking brake. • Move attachment clutch to "DISENGAGED" position. • Move throttle control to choke position. NOTE: Before starting, read the warm and cold starting procedures below. • Insert key into ignition and turn key clockwise to "START" position and release key as soon as engine starts. Do not run starter continuously for more than fifteen sec onds per minute. If the engine does not start after several attempts, move throttle control to fast position, wait a few minutes and try again. If engine still does not start, move the throttle control back to the choke position and retry. WARM WEATHER STARTING (50° F and above) • When engine starts, move the throttle control to the fast position. • The attachments and ground drive can now be used. If the engine does not accept the load, restart the engine and allow it to warm up for one minute using the choke as described above. COLD WEATHER STARTING ( 50° F and below) • When engine starts, allow engine to run with the throttle control in the choke position until the engine runs roughly, then move throttle control to fast position. This may require an engine warm-up period from several seconds to several minutes, depending on the tem per a ture. AUTOMATIC TRANSMISSION WARM UP • Before driving the unit in cold weather, the trans mis sion should be warmed up as follows: • Be sure the tractor is on level ground. • Release the parking brake and let the brake slowly return to operating position. • Allow one minute for transmission to warm up. This can be done during the engine warm up period. • The attachments can also be used during the engine warm-up period after the transmission has been warmed up. NOTE: If at a high altitude (above 3000 feet) or in cold temperatures (below 32 F) the carburetor fuel mixture may need to be adjusted for best engine performance. See "TO ADJUST CARBURETOR" in the Service and Adjustments section of this manual.

Jul 14, 2011 | Garden

2 Answers

Brand new riding lawnmower, stop on hill, set park break, ready to go foward and when I push foward pedal and release break mower free whells backward. has 1 hr. on it. purged the trans. per instructions...


Sorry to hear about your problem...you aren't the only one having it. Sounds like a hydrostatic problem or a pulley freewheeling on a shaft somewhere. If you bought your tractor at Sears they might could help you---the husky and are the craftsman are the same. Husky uses a little better engine is all. Hope this helps.

Jul 11, 2011 | Husqvarna Riding Lawn Mower 46 Cut Kohler...

1 Answer

Were do you put hydro drive oil in. I have a 700ex


Hello, sorry to be the bearer of bad news, but the trans-axle on this is a sealed unit and oil cannot be added. The only thing you can do is an air purge or replace the trans-axle.

Doing a purge is really easy:

  1. put transmission in the freewheel mode so you can push it, ensuring that it is on a flat surface
  2. start engine and run full throttle
  3. release clutch brake
  4. push the drive pedal or lever to the full forward position for a ten count
  5. push the drive pedal or lever to the full reverse position for a ten count
  6. repeat steps 4 & 5 three times
  7. depress & lock the clutch brake
  8. return the transmission to the normal mode
  9. drive tractor
If this fails to correct the problem you may need to replace the transaxle.

If you find this helpful please vote yes. Thank You!!

May 12, 2011 | Poulan Pro 46Inch 22 HP Yard Tractor with...

1 Answer

What oil goes in the transmission?hydrostatic #944.608860


Hello, sorry to be the bearer of bad news, but the trans-axle on this is a sealed unit and oil cannot be added. The only thing you can do is an air purge or replace the trans-axle.

Doing a purge is really easy:

  1. put transmission in the freewheel mode so you can push it, ensuring that it is on a flat surface
  2. start engine and run full throttle
  3. release clutch brake
  4. push the drive pedal or lever to the full forward position for a ten count
  5. push the drive pedal or lever to the full reverse position for a ten count
  6. repeat steps 4 & 5 three times
  7. depress & lock the clutch brake
  8. return the transmission to the normal mode
  9. drive tractor
If this fails to correct the problem you may need to replace the transaxle.

If you find this helpful please vote yes. Thank You!!

May 11, 2011 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

1 Answer

I have a craftsman 24 hp 54 " tractor with a automatic transmission and its about 8 years old. It was running and moving fine when i put it away for the winter and had no problems. When I took it out...


Hello, It is not likely the belt. The only thing you can do is do a purge and see if that helps.

Doing a purge is really easy:

  1. put transmission in the freewheel mode so you can push it, ensuring that it is on a flat surface
  2. start engine and run full throttle
  3. release clutch brake
  4. push the drive pedal or lever to the full forward position for a ten count
  5. push the drive pedal or lever to the full reverse position for a ten count
  6. repeat steps 4 & 5 three times
  7. depress & lock the clutch brake
  8. return the transmission to the normal mode
  9. drive tractor
If this fails to correct the problem you may need to replace the transaxle.

If you find this helpful please vote yes. Thank You!!

May 03, 2011 | Craftsman 20 hp 42 in. Deck Lawn Tractor -...

2 Answers

Rear wheels will not turn. Worked fine when stored for the winter


Craftsman-Husky...same tractors-built in the same factory. I also had a problem with the hydrostatic transmission not providing power to the rear wheels. Here's what Sears told me:
(1) Check to make sure the drive belt is tight both under the engine-and the tranny.
(2) Air can get into the hydrostatic transmissions-especially during shipping (new mower) and storage.
So.....
Pull your freewheel pin out to disengage the tranny-then push the mower both forward and then backwards for 50' or so. Then push the freewheel pin back in and start the mower. If the transmission then works-drive forward-then backward-then forward repeating the cycle about 4 times. Drive about 50' in each direction. This should purge the air from the treansmission.

Mar 20, 2009 | Craftsman Garden

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