Toro 99051SL - Manuals

3 Hydraulic Oil Filters Electric Solenoid Valve Spool To Bore Fit Spool Cage Spool in Cage Clearance .4369 / 4371 DIA . .4375 / 4378 DIA. .0004 MIN .0009 MAX Total Particulate Contamination Relative Sizes of Particles Sizes of Familiar Objects Substance Micron Inch Grain of Table Salt Human Hair Low...

4 Hydraulic Oil Filters Toro Hydraulic Filters • Filter Mounting Base – Rigid Cast Base • Filter Element Seal – Positive Rubber seal – Captive in the Filter Element • Bypass Valve – None for Hydraulic Filter – Needs Complete Filtration • Filter Element – Steel Ends – Glued on Ends – Proper Micron Ra...

5 Hydraulic Oil Filters What Beta Numbers Mean • First number – Filtration Ratio • Second Number – Particle Size (Micron) • Example of Beta Rating particles Micron particles /5 = 98.6% of 5 Micron particles Filtration Ratio Filtration Ratio / Efficiency Table 1.01 1.0% 1.1 9.0% 1.5 33.3% 2.0 50.0% 5...

6 Hydraulic Oil Filters Are they the same • Filter construction is Identical – Both filters made by Donaldson Co. – Toro filter catches 50 % of 2 micron particles, 95% of 3 micron particles and 98.6 percent of 5 micron particles • Carquest filter catches: – 96% of 4 micron particles – and only 98% o...

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