Kohler — Steering Control Valve and Steering Cylinder Test
Testing & diagnosis · Steering system
From a Kohler service manual — check it applies to your exact model before use.
Applies to: Kohler LH775 engine
Before you start
- Do not turn steering wheel to the left (counterclockwise) as system damage may occur.
- Keep body and hands away from disconnected hoses that might eject fluid under pressure.
Procedure
- Reach normal operating temperature.
- Perform gear pump flow and system relief pressure tests first.
- Drive slowly in a figure eight on level surface; no shaking or vibration allowed.
- Turn steering wheel with small quick movements; let go; wheel should not continue to turn.
- To test cylinder, extend rod fully, turn engine off, remove hose from rod end fitting and plug hose.
- With engine off, turn wheel right; if oil comes out of open fitting, cylinder has internal leakage.
- Reconnect hose; if problem persists and pump/relief are acceptable, service steering control valve.
Source: Kohler service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.