Question about Husqvarna RZ4216 165 hp 42" Zero Turn Lawn Mower

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Mower loses speed when levers pushed forward

Mower loses power and speed when levers pushed forward or set for turning. Wheels do not spin. Engine RPMs stay constant

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Posted on Jan 02, 2017

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hi have a 550 horsepower lawnmower and the height adjuster handle has broke where do i get my hands on a new one anybody out that can help please let me know thanks mossieirwin@hotmail.com

Posted on Oct 27, 2008

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1 Answer

Wheels are locked when trying to push it forward with engine shut off.


There should be a release to disengage the drive system so you can push it when not running. On my Cub Cadet it is on the back above the hitch. It is a simple lever that I pull out and push up to disengage. Has to be something similar on the toro.

May 02, 2016 | Toro Lawn Mower. 22 in. Personal Pace with...

1 Answer

It will run backwards but not forward


If you are able to move in reverse but not forward, you need to adjust the levers. First you will need to elevate the rear wheels and set the neutral. This will then allow you to set the levers for proper forward and reverse movements.

May 03, 2015 | Husqvarna Zero Turn Mower Z5426

1 Answer

Why won't the mower move forward or backward even though the engine is running and the blade will engage?


First off, riding mowers do not "go into gear"; nor can they be shifted into or out of gear...nor, as a matter of fact are they "automatic" or do they have "automatic" transmissions. Instead, the so-called hydrostatic "transmission" is nothing more than the sense one gets--encouraged by mfr/seller misdirection (or product ignorance)--that a mower works just like a car...rather than being powered by nothing more than a belt that turns a wee little hydraulic motor, the speed and direction of which is controlled by the foot pedal controlling volume of fluid coursing though it to hydraulically drive the drive wheels.

If your rider will not move, that means one of two things (other than fatal failure mode)...or rather two of one thing, the latter being that hydraulic fluid it not flowing, is not pumping freely, through that motor.

Reason 1 (the more likely) is that the manual-mower-push switch on the motor has been engaged to permit the mower to be pushed without the vehicle (drive wheels) being blocked...because the engine is not running, so the fluid cannot flow with the turning of the drive wheels (unless the switch is engaged).

Think of it this way. When the mower is running and the clutched engine PTO is driving the belt or shaft that drives the hydraulic motor, the direction is chosen by reversing direction of fluid flow that the motor is circulating under pressure (also called pumping) to the drive wheels. Push toe and it flows and drives wheels in the mower-forward-drive direction; push heel and it flows the other way. Now, what about when neither is pushed? Then, essentially, all channels of flow are blocked--"neutral" (if you want to think of it that way) is not freewheeling (as with a car), it is drive wheel blocked by hydraulic lock at the motor. That is why a "hydo..." equipped mower does not coast as does a car. Alternatively, suppose that you could lift up and try to rotate the drive wheels in a particular direction. You would find that the wheels resist turning (unlike rotating RWD car drive wheels to remove a drive shaft, for example)...because they are essentially hydraulically locked by the motor that is not allowing compensatory fluid circulation in any direction!

Now, to disable the manual push mode that allows the drive wheels to rotate for manual pushing, look under the mower at the drive motor. It will be at the end of the belt loop or shaft being driven at the PTO beneath the engine. Now, find some kind of protruding lever big enough to grasp. If it seems "up" push it down; if "down" push it up...just make it go the other way to release. Now, start up and drive the mower normally. But wait! Before you mow, read the below.

Reason number 2 for unexpected drive wheel drive failure is absence of fluid to drive them....because you have not check fluid level and maintained it as the instructions directed you to do. So find the fluid plenum/level-check container and add some fluid if it is low. Just a little. Then start the engine and check lever with motor running. Fill carefully to indicated level but be very careful not to over fill. The mower should now run with valuable maintenance lesson learned. And remember that neglected fluid check can greatly shorten hydraulic motor life. Oh, make sure to check fluid level again when finished....after any air has been purged...add if/as necessary.

Nov 10, 2014 | Husqvarna Riding Lawn Mower 42 Inch Cut...

1 Answer

John deere instructions


Your mower doesn't have enough power to handle very thick grass at high speed. You need to go slower across the lawn. That's easy to do if this is a push mower (just don't walk so fast) or if it's a self-propelled model with a speed control. But if it's a single-speed model you'll have to mow the lawn in fits and starts: squeeze the lever to move it forward; release it when you hear it bogging down; wait for the motor to reach full speed; squeeze the lever to move it forward again; repeat. Also, is the grass very high? If so, try setting the cutting height higher on the first pass, then lower it for a second pass. Finally, make sure the blade is sharp.

Aug 06, 2014 | Briggs & Stratton 190cc 875 Series OHV...

1 Answer

Scooter won't move when forward/reverse engaged.


From:

http://mobility123.com/help-fix-mobility-scooter-powerchair/


Engage the freewheel lever
- allows you to operate the mobility equipment with the standard controls.
Disengage the freewheel lever - This unlocks the unit and allows the wheels to spin freely. You can easy push the equipment without power. This is especially helpful if you run out of battery power and need assistance.

Apr 21, 2017 | Health & Beauty

2 Answers

Self propell not working right


Leave aside all the puffery about 3-1 and such, you described a front wheel drive (pull) walk-behind (FWD), but are asking why the rear wheels won't propel. When you push down the hand grip the front wheels should spin free. Whan you lower from wheels by releasing pressure on hand grips, turning wheels lowered to ground should propel the mower along with its unpowered rear wheels now turning be ground contact. Reminder, never, ever lift rear drive wheels of any mower off the ground while walking behind with engine running:
  1. You could be struck by blade propelled object.
  2. You could pull mower and spinning blade backward onto your feet.
  3. You could lose balance and be pulled forward in a fall.
Contemporary FWD mowers are recognized by a black chain housing on deck top leading from engine to left front of deck. RWD propelling chains are situated underneath deck so cannot be seen from above.

Jun 25, 2014 | Troy-Bilt 12AVB29Q711 TB260 21-Inch 160cc...

1 Answer

Brand new Troy-Bilt XP Horse, model 13bx79kt011 - Won't Move


Confirm the park brake is off. If a hydro-static drive tractor starts but engagement of the operator controls for the transmission drive results in neither a forward or reverse drive of the mower itself, the operator should check that the manual bypass controls have not been left in the activated (bypass) position.

Look in to where the lever connects and confirm the movement. You should be able to hear the hydraulic oil with a slight whine as you activate the drive forward pedal!
See page 18 for bypass setting?
Cut and paste link
http://www.troybilt.com/wcsstore/TroyBiltUS-CAS/Attachment/ownersManuals/riders/HorseXP_2012_769-07569[1].pdf

Jun 27, 2017 | Garden

1 Answer

Not sure, but i think the electronic clutch is not engaging when i push the control levers forward or backwards. the engine and the mower deck both run, but the mower will not move


The electric clutch is to power the blades/mower deck. There is a belt that drives the hydrostatic pumps to power the wheels. Make sure the Parking brake is OFF. Could be a belt, spring, idler pulley.

Nov 19, 2009 | Ariens 34 In. Zoom Series Riding Mower

1 Answer

How do you start a new toro 6.5 hp lawn mower. I borrowed it from my neighbor,but it has 2 levers to pull back. I'm clueless!


One lever is to make it go - wheels will turn & pull the mower..
The other lever is to keep it running - it this lever is released it will shut off..
This is the lever you need to keep pushed for it to start..

When starting - there should be a rubber push button on the engine near the carb.. Push it 4 times before starting.. This pumps gas into the carb for quick starts.. Good luck ;o)

Jul 08, 2009 | Toro Lawn Mower With Toro Power Tools

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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