Husqvarna PP 418 manuel dutilisation Hydraulic Maintenance

Page 15

HYDRAULIC MAINTENANCE

HYDRAULIC SYSTEM SPECIFICATIONS

Oil Tank volume:

10 liter (2.6 gal)

Oil Type:

ISO 46 (see page 8)

Hydraulic Filter (large):

 

510 02 33-01

25 Micron filter

Hydraulic Filter (small):

542 16 64-49 25 Micron filter NOTICE: Never use automotive type oil filters.

They do not have the required flow capacity and can burst during operation.

Replacement Frequency:

Both Filters - After 1st 50 hours, then every 100 hours

Hydraulic Oil - Every 100 hours or once a year

SYSTEM MAINTENANCE

Daily

1.Check hydraulic oil level. Make sure that the oil level on the sight glass is above the lower limit indicated. Add oil as needed.

2.Check for any leaks or kinks on the hydraulic hoses or any other leaks at couplers and fittings.

3Check oil cooler for any debris and dirt buildup. Remove debris with air pressure or spraying with a garden hose. Do not use a high pressure washer directly on the cooler.

REPLACING OIL AND FILTER

Remove the 4 screws as indicated below. This will enable full access to the large oil filter.

OIL TANK

Drain plug.

ALWAYS REPLACE

both filters and oil every 100 hours

WATER CONTAMINATION

In humid climates the hydraulic system can collect large amounts of water condensation in the oil tank. This happens due to the humid air in the tank changing from getting hot and cold. Small amounts of water condensation will not be noticeable. If large amounts of water are present, the oil will “foam” or turn “white”. The power pack and other hydraulic tools should not be operated with water contaminated oil.

If water contamination occurs you should replace the oil and filters. In some cases it is feasible to remove the water contamination out of the oil. The hydraulic hoses should also be emptied.

Procedure for removing the water:

1.Install the hoses and connect the ends together.

2.Start the engine and turn on the flow selector to the 40 liters (10 gal)

3.Let the engine operate for 5 minutes at this flow setting.

4.Turn of the engine and drain the oil tank in an appropriate container. Preferably – remove the quick couplers on the hoses and drain oil into a container.

5.The water in the contaminated oil will settle at the bottom of the container in approximately 24 hours. The oil will now appear “normal”.

6.Carefully pour the clean oil back into the tank – leaving the water in the container.

7.REPLACE the oil filters.

TROUBLESHOOTING THE HYDRAULIC SYSTEM

To adequately diagnose and troubleshoot any problems relat- ed to the hydraulic system it is necessary to have a hydraulic tester consisting of a flow meter and pressure gauge. Never readjust the pressure relief valve without the proper hydraulic diagnostic tool.

CONTACT a local Husqvarna dealer or Husqvarna Construction Products for diagnostic help.

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Contents Operator’s Manual Introduction Personal Safety EquipmentSafety Definitions Safety HazardsRegister the Product Lifting and Loading ContentsLifting eyelet What is WhatEngine model, type and code Serial numberDecals and Locations Flow Requirement What Tools can be PoweredHydraulic Hoses and Couplers Hydraulic valveEngine OIL Fuel HandlingProper Fuel OIL HandlingOnly use the lifting eyelet when lifting the power pack Step AssemblyCharging a Battery Servicing the BatteryConnecting a Battery Disconnecting a BatteryThrottle Control Ignition SwitchPlease see Adjusting the Automatic Throttle on Controls OperationBefore starting Starting ChecklistStarting Procedure Starting the First TimeScenario Adjusting the Automatic ThrottleAdjustment General DescriptionEngine Maintenance Hydraulic Maintenance Hydraulics Technical SpecificationsHusqvarna Equipment Warranty WarrantyConformity Certificates Page 510 02
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PP 418 specifications

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