- Sep 5, 2014
That to me is puzzling, why would some be serviceable (Oil & filter change), & others sealed ? Both Hydro-Gear units.
Read post 29 ;-That to me is puzzling, why would some be serviceable (Oil & filter change), & others sealed ? Both Hydro-Gear units.
Start with my son worked at Hydro-Gear and built the EZT and others. Yes they are built in a clean room. Here comes the bad part. They are shipped dry. The lawn mower manufacturer then adds oil to the unit. No clean room. They are mostly filled in a dirty manufacturing line. This is one of the reasons for EZT failures that I hear about on this and other forums. The other is they do not use the recommended oil to fill it with. John Deere is the worst of the offenders. They want to sell their oil and put it in instead. Hydro-Gear builds all their units with spects from Castrol 20w50 motor oil. If the manufacture uses that or at least 20w50 in a simi clean area then your EZT will last a long time. If not the failures will happen.They are non servicable because the sealing is very good and the units are made in a sterile clean room.
Clowns drain the oil find an old grubby funnel then proceed to fill the box with dirt , dust & grass clippings.
When I do one of these , I clean every thing in an ultrasound unit followed by either & blow dry.
They then go into the bathroom ( I work out of an old house) after I have hosed down the room & walls.
Dust down as low as 0.5 micron size will kill the unit in no time flat.
Depends upon what sort of precision tooling you have on hand.Well, this has certainly sparked some interesting posts.
And to Bert- I build Harley engines & trannies, by appt only.
And growing up as a Diesel mechanic with years in a machine shop, I don't think a EZT or EZ hydro pump would be very intimidating. You're not the only one that can turn a spanner, or has a "clean room" for assemblies.