Liebherr pr724 crawler dozer service repair manual

Page 117

Service Manual

Technical Data and Maintenance guidelines Maintenance and inspection schedule

Company:....................................................Mach.-Type..............S/N....................Hrs................Date............ Maintenance / inspection at operating hours

WORK TO BE CARRIED OUT by maintenance personnel First and only interval Repeat interval OI

by authorized trained personnel First and only interval Repeat interval

Operating instructions

SM Service manual

Reference see:

Remar ks

For correct fill quantities, use test marksfor procedure and quantities, see OI For quality and viscosity guidelines, see “Service fluids”, OI See data in SM

DIESEL ENGINE Check oil level and coolant level

OI

Check / clean Diesel engine, coolant assembly and belly pan for contamination

OI

Check fuel water separator on pre-filter / empty as necessary -immediately if indicator light lights up Drain fuel tank, condensation and sediments - but at least 1x week Change engine oil -1) Specification: CI-4, CH-4

OI

Change engine oil -1) Specification: E4, E5, E6, E7 - Shorten interval in case of aggravating circumstances - but at least 1 x a year 1) Change lube oil filter - but at least 1 x a year Check corrosion inhibitor / antifreeze concentration in coolant Check V-belt condition Check control unit mounting, sensory and cable connections for condition Change / replace oil separator filter insert Check oil, cooling and fuel system for leaks and condition Check intake and exhaust system – mounting and leaks Check engine mount Check engine RPM Change fuel pre-filter and fine filter - Observe bleeding instructions Check / adjust valve play – with cold engine Grease gear ring on flywheel Take oil sample before oil change and send it in for analysis Check vibration damper for leaks and distortion - 3000 hrs. Check heater flange – before start of cold season Change heater flange – 10000 hrs. Replace air filter inserts - as necessary, once a year Replace coolant with antifreeze - every 2 years

OI

OI

OI OI OI OI OI OI OI OI SM OI SM SM OI OI SM OI OI OI

HYDRAULIC SYSTEM Check oil level in hydraulic tank Clean magnetic rod (also after repairs) - up to 50 hrs. daily Check oil cooler for contamination / clean Replace pressure filter for replenishing Replace main return filter insert or immediately after indicator light lights up Check working and travel hydraulic system for function and leaks, check hose routing for chafing Check / adjust all hydraulic pressures according to adjustment check list Check mountings and fittings for tight seating Take oil sample (before oil change) and send it in for analysis Replace oil in hydraulic system (refill via filter) - at least every 4 years - when using an environmentally friendly hydraulic medium, request / observe special guidelines

PR 724 PR 734 PR 744 PR 754

F/N xxx-9200 F/N xxx-8220 F/N xxx-7356 F/N xxx-6924

OI OI OI OI OI OI / SM SM OI OI OI

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