Husqvarna ZTH5223, ZTH6125 manual Especially the cooler

Page 69

TROUBLESHOOTING

	•	Bypass loose.	Tighten the bypass.
	•	Inlet leak.	Check all connections and
			hoses for leaks.
	•	Clogged/damaged hydraulic ﬁlter.	Replace hydraulic ﬁlter.
	•	Defective hydraulic pump.	Replace pump.
Unit operating hot.	•	Build-up of of grass cuttings.	Clean the exterior of the mower,
			especially the cooler.
	• Hydraulic cooler clogged or		Replace hydraulic cooler.
		damaged.
	• Oil level low or oil contaminated.		Fill to proper level or change oil.
	• Excessive loading (long grass).		Raise the cutting height, drive
			more slowly.
	• Air trapped in the hydraulic system.		Aerate the system.
	•	Inlet leak.	Check all connections and
			hoses for leaks.
External oil leak	•	Loose connection/seal.	Tighten, clean, test run.
	• Damaged seal or gasket.		Replace seal, test run.
			Replace seal and gasket.

•Hose leaking but oil reaching the pump.

Replace hose, seal and gasket.

English-67

Image 69

Contents ZTH Svenska Workshop Manual RIDE-ON Lawn Mower ZTH ContentsEnglish-2 Safety Instructions Safety InstructionsGeneral Instructions Special InstructionsSafety Regulations Explanation of Symbols Explanation of SymbolsXxxxxxx xxxx xxxxxxxx xxx x. xxxx xxxxxx Tools ToolsTechnical Data Technical DataZTH5223 ZTH6125Fuel capacity Litres 11.4 US Gal., 22 litres ZTH5223 ZTH6125Tightening torque, standard Bolts 12 Nm 9 ft/lb 25 Nm 18 ft/lb 44 Nm 33 ft/lb70 Nm 52 ft/lb 110 Nm 80 ft/lb AccessoriesEnglish-10 Delivery and Dealer Service Delivery and Dealer ServicePre-delivery Service Charge the battery Mount the rear tiresCarry out a 25 hour service Hour ServiceAfter the First 8 Hours Change the motor oilEnglish-13 At Least Once a Year Maintenance Schedule Daily Weekly Service Records English-18 Delivery Servicing Delivery ServicingTo our Dealers Removing the Mower from its PackagingDelivery Service Important Information Risk of incorrect assembly/ﬁttingADD Gasoline is highly ﬂammable Take great care Test Running AdministrationDesign and Function Design and FunctionGeneral Mower IdentiﬁcationEngine identiﬁcation Engine Drive and ControlBrakes Belt is automatically adjusted by a spring Mower DeckWith the belt and the other pulleys Repairs RepairsRemoving Disconnect the cable from the starter motorFitting Adjusting the Throttle Wire Adjusting Throttle Lever TensionChecking and Adjusting the Throttle Wire Diagram Checking and Adjusting the Choke WireFire and health hazard Avoid spills Wipe dry if necessary Fuel tankThree nuts 10 all with washers Springs 9 located on the underside of the splashguardAdjusting Motion Control Lever Spring-back Adjusting Motion Control Lever LinkagesAdjusting the Park Brake See Hydraulic system\Hydraulic pump\Adjusting the linkagesZTH mower deck diagram Spindle Blade Bearings Repairing BearingsRemoving Bearings Roll the belt off see Changing BeltsSharpening and Balancing Blades Replacing BearingsOr any other damage. If they do, scrap Adjusting Cutting Height Setting the Mower DeckDeck Belt LevelingBelt Tensioning Assembly Changing Pump and Deck Belts Hydraulic Pump BeltFront Wheel Bearings Pump Belt Tensioning AssemblyDismantling AssemblingEnglish-42 Wiring Assembly TroubleshootingDiagram below shows the structure of the electrical system Electrical SystemZTH console harness ZTH frame harness Battery Refer to the ZTH electrical system diagramFuses Relays Starter Motor ContactorChanging Hour Meter Ignition and Start SwitchTroubleshooting Guide Blade SwitchMower Deck Clutch Measuring the Supply VoltageMotion Control Switches Check that the start interlock functions correctly Park Brake Interlock SwitchWelding Hydraulic System Hydraulic SystemHydraulics Hygiene Hydraulic Oils Keep Hydraulic Oil CleanCorrect Oil Leaks Work MethodsZTH Hydraulic System Hydraulic Tank DrainingFilling Cooler for the Hydraulic System ﬁtting procedure is the reverse of the removal procedureHydraulic Filter Hydraulic LinesDismantling and Assembling Fitting Hydraulic PumpStop the engine and remove the key Reverse Spring Detent AdjustmentDismantling and Assembling Hydraulic MotorsTroubleshooting TroubleshootingWiring Harness To RUN? Clutch Solution Problem Possible causes Clutch will not engageLarge more than Useful life 125/3.18 mm Brake will not engageFaulty. Repair or replace Noisy clutch/vibrationsFailed bearing Loose mounting bolt not tightened Problem Cause Corrective action Troubleshooting Checklist, Hydraulic PumpEspecially the cooler ´+H¶6D¨ Svenska ´+H¶6D¨ 2002W20 Also See

TROUBLESHOOTING

especially the cooler.