Service & Maintenance Question
I have a Husqvarna EZ5424 zero turn Lawn Mower. I recently...
Service & Maintenance Question posted March 20, 2016 by Ignacio Salim, last edited March 20, 2016
1156 Views, 4 Comments
Question:
I have a Husqvarna EZ5424 zero turn Lawn Mower. I recently took it out of the shed (as it has been stored all winter). It started up great and drove great but when I was driving it, I realized that it was leaking oil from the charge pump cover (located at the bottom of the hydro gear)on each of the hydro gear. I then removed the charge pump cover, then the gerotor assembly, then the damaged o-ring. I replace the O-Ring, then put the gerotor assembly and charge pump cover back into place. I then tried to drive the mower but the left side was barely moving while the right side drove great. I came to the conclusion that there is air in the left hydro gear. I want to now purge the system but do not know how to. Any help would be greatly appreciated. Thank you
Hydro gear model number: ZH-GCEE-1B8B-1BXX
Hydro gear model number: ZH-GCEE-1B8B-1BXX
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Answer
That would be A Hydro Gear ZT-2800 unit.
Before starting, make sure the transaxle is at the proper oil level. If it is not, fill to the specifications.
The following procedures are best performed with the vehicle drive wheels off the ground. Then repeated under normal operating conditions. If this is not possible, then the procedure should be performed in an open area free of any objects or bystanders.
1. Disengage the brake if activated.
2. With the bypass valve open and the engine running, slowly move the directional control in both forward and reverse directions (5 or 6 times).
3. With the bypass valve closed and the engine running, slowly move the directional control in both forward and reverse directions (5 to 6 times). Check the oil level, and add oil as required after stopping the engine.
4. It may be necessary to repeat Steps 2 and 3 until all the air is completely purged from the system. When the transaxle operates at normal noise levels and moves smoothly forward and reverse at normal speeds, then the transaxle is considered purged.
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The bypass valve levers are what allows you to easily move the mower when the engine is not running. On most mowers they are located on the back When pulled out and locked in position they activate the bypass valve.
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