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 Allis Chalmers and Simplicity Garden Tractors
 B-Series & Simplicity Classic Tractor Restoration
 HydroStatic Transmission Repair
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Posted - 03/05/2007 :  18:25:10  Show Profile  Visit B112's Homepage Send B112 a Private Message
(Still a work in progress)
HydroStatic Transmission Repair

The Sovereign and HB112 Transaxle:

Vicker Hydrostatic Pump:

Vickers - Service Parts Catalog

Vickers - Hydrostatic Vehicle Transmissions

Note: A common problem is the leaky pintle shafts in Vickers T-6 pumps. To fix this you need to rebuild pump by rebushing and install new O-rings. The Vickers kit part number is 1-923428, but it's been said that these kits are no longer available from Vickers. It's been said you can fix these with o-rings from Lowes as long as shafts and case are ok. Some have said that while apart can modify internals for more speed, but I'm not sure how.

Other Hydrostatic Transmission Notes:

Sunstrand Hydrostatic Pump:

The repair parts suggesetions:

Pump Kits
1) Michaelson fluid power,Rhode Island 1-401-232-7070, Rick Harris
(approximately $153.45 see *1)
2) Lowes has some O-Rings which can work (approx $1.99[2])
3) Napa carries similar parts

Repair Shops
- Central Hydraulics,513 St. Rt 251,El Paso, IL 61378, 800-694-9376
Note: Central Hydraulics can fix for approximately $130 plus shipping.

Refurbished Units

1) Sandy Lake Implement
Rt.173N 3675 Sandy Lake Rd.
Sandy Lake , PA 16145-9803
Phone: (724) 376-2489 (Bill)
Fax: 24 hrs, (724)376-3775

2) Check surplus supply shops for other whole pumps

Note: Old prices for refurbuished units have been around $139 with an exchange.

See the following discussions for further information:

Inspecting a Vickers Hydro Transaxle
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