Cub Cadet TANK S Series: Hydraulic Drive & Steering System - Manual (Page 11)

SERVICE TIPS & HINTS:
O-Ring Seals:
When loosening or disassembling hoses and fittings the O-Rings can be damaged or misplaced.
It is recommended that O-Ring Seals used in hose couplers and fittings be replaced when attempting
to reuse components. If this isn’t feasible, always thoroughly inspect the O-Rings for cuts, distortion
and brittleness.
Over tightening can cause misalignment, deformation or cut the seals.
Heat generated by pumps and motors can cause seals to become hard and brittle and will not seal
properly if reused.
Tightening Fittings and Hoses:
Always, when applicable, use 2 wrenches when loosening or tightening hoses and fittings.
Avoid twis ting hoses when tightening fittings. A twisted hose tends to return the it’s neutral state and
loosen at the fitting when under pressure and vibration. The results are leaks and possible 0-ring seal
damage from pressure.
Diagnostic Flow Check:
Observing the fluid flow from the return line into the reservoir tank can give an indication of certain
conditions related to the hydraulic system operation and performance.
A normal operating system will produce a strong steady flow.
A weak flow may be an indication of potential pump failure or flow restriction in the system.
Air bubbles are an indication of air being ingested into the pump intake circuit or pump cavitation.
Jms/CTP Page 11 of 11 1/10/2012
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