H&S 9117, Руководство оператора, Страница: 50 / 56

TROUBLESHOOTING
HYDRAULICS
PROBLEM CAUSE REMEDY
Discharge augers do not turn. On/Off control valve in off
position.
Pump defective.
Hydraulic motor defective.
Hydraulic pressure too low.
Foreign object lodged in auger.
Turn On/Off control valve on.
Replace pump.
Replace or repair hydraulic motor.
Check for restriction in hydraulic
lines.
Remove foreign object.
Difficult to engage or disengage
On/Off control valve.
On/Off control valve defective. Replace On/Off control valve.
Pump will not turn. Belt out of grooves.
Belt does not have proper
tension.
Pump defective.
Return line blocked or restricted.
Realign sheaves and adjust belt
tension.
Replace idler tension spring or
properly position idler.
Check oil flow and replace pump if
necessary.
Remove blockage and replace oil
and filter if dirty.
Pump squeals during start up.
Oil too heavy/cold.
Oil level in reservoir too low.
Allow oil to warm up or switch to a
recommended lighter oil.
Add oil to bring between min/max
indicator levels.
Augers operating slow. Improper oil flow.
Plugged oil filter.
Hydraulic pump defective.
Hydraulic motor defective.
Oil too thin.
Not enough oil flow to hydraulic
pump.
Check pump output pressure as
applicable.
Replace filter.
Replace hydraulic pump.
Repair or replace hydraulic motor.
Replace with heavier oil.
Change oil filter, replace oil with
new oil and fill to proper level.
Note: In troubleshooting a self-contained hydraulic system, it is necessary to isolate the pump from
the hydraulic motors to determine which unit is malfunctioning. A worn pump or motor will both
give the same system indication. Run a pressure and flow check on the pump first to make sure
that it is performing within the operating specifications, then check the motor for the correct
specifications. Oil flow must be checked at the rated PTO speed. Flow should be 9.2 GPM at
1000 PSI.
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