Part Location Diagram of 2817579SM Murray BALL-.4375DIA GRADE
See part O-19 in the diagram

BALL-.4375DIA GRADE 2817579SM

Manufactured by:
Murray
ERP Number:
ERP18592248
Part Number:
2817579SM
Original Equipment Manufacturer ?
$6.16
Special Order

A Bit Difficult 

More than 2 hours 

(1 rated repair) ?

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Troubleshooting

This part works with the following brands:
  • Simplicity
This part works with the following products:
  • Lawn Tractor
Part# 2817579SM replaces these:
2817579SM,

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Customer Repair Instructions

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A Bit Difficult 

More than 2 hours 

(1 rated repair) ?
  • 1
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Sorry, we couldn't find any existing installation instruction that matched.

Hydrostatic transmission was not repaired correctly by machine shop

Ralph from Gladwin, Michigan

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
More than 2 hours
Tools:
Nutdriver, Screw drivers, Socket set, Wrench set
1. Tested charge pressure (30 PSI - should be 70-150 PSI) & Implement Circuit (40 PSI vs 700 to 800 psi) 1-1/2 hour setup and test
2. Removed hydro static transmission from tractor (5 hours including major disassembly of tractor)
3. Removed and checked forward and reverse acceleration valves ( 1 was installed backwards)
4. Removed and checked charge pressure and implement pressure valves ( charge valve components were totally missing) Went on line searched for and ordered charge valve components ( 3 hours)
5. Installed minimum shim in new charge valve - reinstalled transmission in tractor (4 hours)
6. Tested charge pressure - re-shim - retest 5x - got pressure to 95 PSI (2 hours )
7. Tested Implement pressure - (175 PSI) installed balance of shim kit on implement valve ( 180 PSI) (2 hours)
8. Finished putting tractor back together (4 hour ) Total time about 24 hours!
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Model Cross Reference

This part works with the following models:
ERP Number: ERP18592248
Manufacturer Part Number: 2817579SM
Brand Model Number Description
Simplicity 1690072 Lawn Tractor - 9020, 19.5Hp Onan Gear
Simplicity 1690230 Lawn Tractor - 9020, 19.5Hp
Simplicity 1690231 Lawn Tractor - 720, 19.5Hp Hydro Tractor
Simplicity 1690283 Lawn Tractor - 9020, 19.5Hp, W3 Pt. Hitch& Re
Simplicity 1690288 Lawn Tractor - 720, 19.5Hp Hydro Tractor
Simplicity 1691795 Lawn Tractor - Lth, 12.5Hp Hydro
Simplicity 1691797 Lawn Tractor - Lth, 12.5Hp Hydro And 38In Mow
Simplicity 1691799 Lawn Tractor - Lth, 16Hp Hydro And 44In Mower
Simplicity 1691807 Lawn Tractor - Lth, 16Hp Hydro
Simplicity 1691817 Lawn Tractor - 1613H, 12.5Hp Hydro Lawn Tractor
Simplicity 1691819 Lawn Tractor - 1616H, 16Hp Hydro Lawn Tractor
Simplicity 1691820 Lawn Tractor - 1613H, 12.5Hp Hydro Lawn Tractor
Simplicity 1691822 Lawn Tractor - 1616H, 16Hp Hydro Lawn Tractor
Simplicity 1691886 Lawn Tractor - Lt, 12.5Hp Hydro
Simplicity 1691887 Lawn Tractor - Lt, 12.5Hp Hydro And 38In Mowe
Simplicity 1691888 Lawn Tractor - 1613H, 12.5Hp Hydro
Simplicity 1691889 Lawn Tractor - 1613H, 12.5Hp Hydro And 38In M
Simplicity 1692006 Lawn Tractor - Landlord 18Hp, Hydro
Simplicity 1692007 Lawn Tractor - Landlord 18Hp, Hydro And 50In
Simplicity 1692036 Lawn Tractor - 1718H, 18Hp Hydro
Simplicity 1692037 Lawn Tractor - 1718H, 18Hp Hydro And 50In Mow
Simplicity 1692042 Lawn Tractor - Gth 16Hp, Hydro
Simplicity 1692043 Lawn Tractor - Gth 16Hp, Hydro And 50In Mower
Simplicity 1692044 Lawn Tractor - 1716H, 16Hp Hydro
Simplicity 1692045 Lawn Tractor - 1716H, 16Hp Hydro And 50In Mow
Simplicity 1692112 Lawn Tractor - Gth 16Hp, Hydro And 44In Mower
Simplicity 1692114 Lawn Tractor - 1716H, 16Hp Hydro And 44In Mow
Simplicity 1692439 Lawn Tractor - Landlord, 16Hp Hydro And 44In
Simplicity 1692440 Lawn Tractor - Landlord, 16Hp Hydro
Simplicity 1692441 Lawn Tractor - Landlord, 18Hp,Hydro And 50In