Hyster D174, Руководство по обслуживанию и ремонту

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1900 SRM 97 Troubleshooting
Troubleshooting
PROBLEM POSSIBLE CAUSE PROCEDURE OR ACTION
The pump makes too much
noise. Air in the hydraulic system. Remove air from hydraulic system.
The bearings or gears are damaged. Repair or replace hydraulic pump.
Outlet valve from the hydraulic tank
is closed. Open hydraulic tank outlet valve.
Low oil level in hydraulic tank. Fill hydraulic oil tank to correct level.
Wrong oil. Drain incorrect oil and fill hydraulic
tank to correct level.
Supply hose is twisted or has a re-
striction. Remove twist or remove restriction.
Breather on hydraulic tank has a re-
striction. Replace hydraulic tank breather.
Seal for pump shaft is damaged. Replace pump shaft seal.
Pump drive has a problem. Repair pump drive.
Relief valve is set wrong or is dam-
aged. Adjust relief valve setting. Replace
relief valve if it is damaged.
Screen in hydraulic tank has a re-
striction. Clean hydraulic tank screen.
Pump is loose or not installed cor-
rectly in its mount. Check pump installation and tighten
bolts if necessary.
Low hydraulic pressure. Relief valve is set wrong or is dam-
aged. Adjust relief valve setting. Replace
relief valve if it is damaged.
Flow regulator valve is damaged. Replace flow regulator valve.
Leak inside of a hydraulic cylinder. Repair hydraulic cylinder.
Worn or damaged hydraulic pump. Repair or replace hydraulic pump.
Air in the hydraulic system. Remove air from hydraulic system.
Low oil level in hydraulic tank. Fill hydraulic oil tank to correct level.
Wrong oil. Drain incorrect oil and fill hydraulic
tank to correct level with correct oil.
Supply hose is twisted or has a re-
striction. Remove twist or remove restriction.
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