Husqvarna ZTH5223, ZTH6125 manual Sharpening and Balancing Blades, Replacing Bearings

Page 39

REPAIRS

assembly is supplied with an “O” ring (47) . The “O” ring must be removed before the pulley is ﬁtted.

Replacing Bearings

The ﬁtting procedure is the reverse of the removal procedure.

Tightening torques:

•Blade bolts 122 Nm (90 lb/ft).

•Pulley bolts 61 Nm (45 lb/ft).

Sharpening and Balancing Blades
	WARNING!
	Blades with any cracking must
	not be used. Do not straighten
	a damaged blade if there is any
	danger of crack formation.
•	Remove the blades.
• Check that the blades do not have cracks		6012-088

or any other damage. If they do, scrap	Grinding a blade
them.

•Clamp in a screw vice (see diagram) and ﬁle until sharp.

Balancing is as follows:
• Fix a mandrel (for example) horizontally
in a screw vice (see diagram).
• Push a blade onto the mandrel and
check that it is evenly balanced. The
diagram shows a blade which needs
adjusting. This blade should be ground at
the edge indicated by the straight arrow.
• The ﬁtting procerdure is the reverse of
the removal procedure.
The tightening torque for the blade bolts
is 122 Nm (90 lb/ft).	6012-089
	Balancing a blade

English-37

Image 39

Contents ZTH Svenska Workshop Manual RIDE-ON Lawn Mower ZTH ContentsEnglish-2 Special Instructions Safety InstructionsSafety Instructions General InstructionsSafety Regulations Explanation of Symbols Explanation of SymbolsXxxxxxx xxxx xxxxxxxx xxx x. xxxx xxxxxx Tools ToolsZTH6125 Technical DataTechnical Data ZTH522312 Nm 9 ft/lb 25 Nm 18 ft/lb 44 Nm 33 ft/lb ZTH5223 ZTH6125Fuel capacity Litres 11.4 US Gal., 22 litres Tightening torque, standard Bolts70 Nm 52 ft/lb 110 Nm 80 ft/lb AccessoriesEnglish-10 Charge the battery Mount the rear tires Delivery and Dealer ServiceDelivery and Dealer Service Pre-delivery ServiceChange the motor oil Hour ServiceCarry out a 25 hour service After the First 8 HoursEnglish-13 At Least Once a Year Maintenance Schedule Daily Weekly Service Records English-18 Removing the Mower from its Packaging Delivery ServicingDelivery Servicing To our DealersDelivery Service Important Information Risk of incorrect assembly/ﬁttingADD Gasoline is highly ﬂammable Take great care Test Running AdministrationMower Identiﬁcation Design and FunctionDesign and Function GeneralEngine identiﬁcation Engine Drive and ControlBrakes Belt is automatically adjusted by a spring Mower DeckWith the belt and the other pulleys Disconnect the cable from the starter motor RepairsRepairs RemovingFitting Adjusting the Throttle Wire Adjusting Throttle Lever TensionChecking and Adjusting the Throttle Wire Diagram Checking and Adjusting the Choke WireSprings 9 located on the underside of the splashguard Fuel tankFire and health hazard Avoid spills Wipe dry if necessary Three nuts 10 all with washersSee Hydraulic system\Hydraulic pump\Adjusting the linkages Adjusting Motion Control Lever LinkagesAdjusting Motion Control Lever Spring-back Adjusting the Park BrakeZTH mower deck diagram Roll the belt off see Changing Belts Repairing BearingsSpindle Blade Bearings Removing BearingsSharpening and Balancing Blades Replacing BearingsOr any other damage. If they do, scrap Leveling Setting the Mower DeckAdjusting Cutting Height Deck BeltBelt Tensioning Assembly Changing Pump and Deck Belts Hydraulic Pump BeltAssembling Pump Belt Tensioning AssemblyFront Wheel Bearings DismantlingEnglish-42 Electrical System TroubleshootingWiring Assembly Diagram below shows the structure of the electrical systemZTH console harness ZTH frame harness Battery Refer to the ZTH electrical system diagramFuses Relays Starter Motor ContactorChanging Hour Meter Ignition and Start SwitchMeasuring the Supply Voltage Blade SwitchTroubleshooting Guide Mower Deck ClutchMotion Control Switches Check that the start interlock functions correctly Park Brake Interlock SwitchWelding Hydraulic System Hydraulic SystemHydraulics Hygiene Work Methods Keep Hydraulic Oil CleanHydraulic Oils Correct Oil LeaksZTH Hydraulic System Hydraulic Tank DrainingFilling Hydraulic Lines ﬁtting procedure is the reverse of the removal procedureCooler for the Hydraulic System Hydraulic FilterDismantling and Assembling Fitting Hydraulic PumpStop the engine and remove the key Reverse Spring Detent AdjustmentDismantling and Assembling Hydraulic MotorsTroubleshooting TroubleshootingWiring Harness To RUN? Clutch Brake will not engage Problem Possible causes Clutch will not engageSolution Large more than Useful life 125/3.18 mmFaulty. 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