Cub Cadet TANK S Series: Hydraulic Drive & Steering System - Manual (Page 4)

Daily: (Highly Recommended)
Check the Hydraulic Oil Level in the reservoir.
Low fluid level will enable the pumps to ingest air into the system or cause the system to run
at temperatures above recommended levels. Both conditions will damage pumps and motors.
High fluid level can cause the oil to leak by the filler cap or breather when the fluid expands
during operation. Normally, this does not result in component damage.
Check the Hydraulic Hoses and Fittings for leaks, abrasion, kinks, twists or flattened hoses.
A leak in the system can cause the fluid level to drop below the recommended level during the
course of a day.
Leaks must be addressed immediately to avoid damage to components.
Kinks, twists or flatten hoses can restrict fluid flow. Restricted fluid flow can cause cavitation
within the pumps causing permanent damage.
Clean debris from the cooling fan, radiator screen and fins, and pump housings.
Each pump has a cooling fan mounted directly on the pump shaft.
Debris covering the fan guard/screen restricts air flow essential for proper cooling.
The radiator located at the rear bumper cools the return fluid before it returns to the reservoir.
Operating the unit without proper cooling can cause premature hydraulic fluid breakdown and
damaged seals, gaskets etc.
First 50 Hours: (Mandatory)
Change the Hydraulic Oil and Filter. (See Specifications)
Most initial wear or break-in of internal metal components takes place during the first 50 hrs.
Particles are suspended in the reservoir fluid and are captured in the filter before recalculating
through the system.
The amount of particles captured in the filter can restrict fluid flow to the pumps causing
cavitation resulting in poor performance or component damage.
Every 100 Hours: (Highly Recommended)
Change the hydraulic oil filter if unit is operated under severe conditions.
On the S-Series TANK , changing the filter is relatively easy and inexpensive.
Changing the filter frequently especially under severe operating conditions will insure that the
fluid going through system is clean and unrestricted.
Check the condition of the Hydraulic Oil / Fluid for Contamination and Break Down.
Light or milky color indicates water or air contamination.
Dark color or opaque indicates breakdown from heat or excessive component wear.
*Change the hydraulic oil and filter if any of the above conditions are evident.
* If the hydraulic oil appears contaminated or dark colored, monitor and service more
frequently than the recommended schedule.
Every 500 Hours: (Mandatory)
Change the Hydraulic Oil and Filter. (See Specifications).
Under normal operating conditions, at about 500 hrs., the Hydraulic Oil may begin to
breakdown.
The lubricity and the effectiveness of the oil additives may begin to loose their properties due
to normal wear and heat.
Contaminants as wear particles, dirt and moisture are usually evident after the duration of
the recommended time period.
*It is imperative that the Fluid and Filter be changed at this time.
*Units used under extreme or severe operating conditions the system should be serviced
more frequently than the recommended schedule.
NOTE: Failure to follow the recommended maintenance schedule can effect performance and shorten the
service life of components within the system.
Failure to follow the mandatory service items can jeopardize warranty coverage.
Jms/CTP Page 4 of 11 1/10/2012