Toro 99051SL User Manual

Commercial Products

Hydraulic

PART NO. 99051SL

Filters

OEM Vs. Will-Fit

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1 Hydraulic Oil Filters

Table of Contents

Contamination ................................................................................................................. 2

Filter comparison ............................................................................................................. 4

Filter Ratings ................................................................................................................... 4

Use of This Manual

The information contained in this manual is supplementary to material found in other
sources, it is not a replacement for them. You should always consult Service Manuals,
Service Bulletins, Operator’s Manuals and Parts Books when necessary.

Service Manual Updates and Service Bulletins can be found on the internet at:

www.toro.com/golf/custsvc.html

This Manual and the training program, which it supports, are both designed to help you
gain knowledge of the product, and to inform you of when and why to make the necessary
repairs. We have also included tips for performing those repairs.

This program is designed for you. Your input and participation is appreciated.
There is plenty of space in this manual for you to add your own notes and observations

TORO® Service Training

2 Hydraulic Oil Filters

There are a lot of filter suppliers currently
manufacturing and selling filters for turf mowing

Hydraulic Filters

OEM vs. Will Fit

Commercial Products

equipment. Through this program we will try to
explain the differences between "will-fit" filters and
genuine OEM filters.

Contamination Causes Most Hydraulic

System Failures

• Over 75% of all Hydraulic System failures are a
direct result of contamination.

• Increased repair cost resulting from:

– Loss of Production (down time)
– Component Replacement Costs
– More Frequent Fluid Replacement (And Disposal)

How Contamination Damages

Hydraulic Systems

• Contamination interferes with the four main
functions of the Hydraulic Fluid.

– To Act
– To Lubricate Moving Parts.
– To Act as a Heat Transfer.
– To Seal Small Clearances.

as an Energy Transmission Medium.

First lets look at hydraulic system failures. It is
believed that over 75% of all hydraulic system
failures are caused by contamination.

These failures cost your business money through
lost production, the unit is down.
There is cost associated with replacing the failed
component.
And if the oil is contaminated to the point that it
needs to be replaced early, that to will add
additional operating costs.
All of these costs can be avoided by properly
maintaining the equipment and keeping the
hydraulic oil clean.

Contamination in the oil can inhibit the four main
function of the oil.
The oil is what actually transmits the energy (work)
through the system.
The oil also has to lubricate the system.
The heat in a hydraulic system is carried away and
dissipated by the oil. And the oil will seal up the
small clearances in the hydraulic system.

Contamination, be it water or dirt and metal, will
limit the oils ability to perform these functions.

TORO® Service Training