EVH MFG HARDEE LR50148, Operator And Maintenance Manual

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Section 6
Hardee by EVH
Troubleshooting
LR50148 Long Reach Mower 23
Troubleshooting Guide, continued
Hydraulic System, Blade System, Pump, Motor, Fluid Lines
Problem Possible Cause Solution / Correction
Individual Cylinders Leak Down Blown Or Worn Cylinder Packing Repair / Replace Cylinder
Relief Valve Will Not Adjust To
Specifications Defective Or Worn Valve Seat Repair / Replace Relief Valve And Adjust
To Specifications
Worn Pump Replace Pump
Gate Valve Closed Open Gate Valve
Hydraulic Valve Cracked Internally Repair / Replace Valve
Improper Oil Repair / Replace Oil (Use Hardee Oil Part
No. 23333)
No Power To Control Box No Power To Joystick / Joystick Not
Connected To A 12-Volt System Connect To 12-Volt Power Supply
Improper Connection To Joystick Repair / Replace Connections
Fuse Blown Inside Cigarette Lighter Plug Replace Fuse
Filter Gauge Is In The Red At All
Times Filter Restricted Repair / Replace Filter
Bad Gauge Repair / Replace Gauge
Hydraulic Oil Too Heavy For Region Or
Climate Replace Oil
PTO Shaft Won't Telescope PTO Shaft Not Lubed Properly Lube Driveshaft (Per Daily Routine Check
Sheet On Page 15)
Bent Shaft Replace PTO Shaft
Excessive Slack In Boom Hinges Pins Worn Repair / Replace Pins
Beams Squeak When Operating No Lubrication Or Improper Lubrication Lube Hinge Points (Per Instructions On
Page 15)
Defective Lube Fittings Repair / Replace Fittings
Boom Operates Erratically
Speed Is Too Fast Call HARDEE Dealer
Defective Controller Check Blink Codes on Page 24
Air In Lines Purge Hydraulic Lines
Proportional Valve Trash in Valve
Blades Won't Start-Up Oil Flow Restricted Open Gate Valve
Repair / Replace Hydraulic Lines
Replace In-Tank Filter
Blade Off/On Switch or Electric Circuit Check for 12-volts at Coil
Trash in Valve Proportional Valve
Check Coil