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PM schedule · Wheel loader

John Deere 644 P-Tier maintenance schedule

Service intervals, fluids and filters for the John Deere 644 P-Tier. Full specs, part numbers and heavy-duty intervals are in goAardvark.

  • Series P-Tier
  • Engine John Deere PowerTech PSS 6068, 186 kW (249 hp) net
  • Emissions EPA Final Tier 4 / EU Stage V
  • Size class 3.0–3.5 m³ bucket
Snapshot my fleet

Source: John Deere 644 P Replacement Parts Guide / Service Intervals (PIN 1DW644PA__L10283-), T456654X019, May 2022 · Last verified October 29, 2026 · Always confirm with the operator's manual for your serial number

What's due next?

Enter the hour meter (SMU) reading to see what's coming up.

hr

  • 1,000 hr service

    Includes 500 hr, 250 hr

    at 3,000In 160 hr

  • 250 hr service

    at 3,250In 410 hr

  • 500 hr service

    Includes 250 hr

    at 3,500In 660 hr

  • 250 hr service

    at 3,750In 910 hr

Shows the next four service stops. Red means due within 50 hours; amber, within 250. goAardvark tracks this automatically from telematics hours, across every make in your fleet.

The short answer

On the John Deere 644 P-Tier, change the engine oil every 500 service hours. Change the hydraulic oil every 4,000 hours. The engine oil system holds 28.0 L (7.4 US gal).

Service intervals

Pick an interval. Each service includes everything from the shorter intervals that fall on the same hour.

Every day

0 of 6 done

+1 heavy-duty or special-condition intervals are in goAardvark.

Fluids and capacities 3 of 9 shown

SystemSpecCapacity
Engine oilJohn Deere Plus-50 II28.0 L7.4 gal
Hydraulic systemJohn Deere Hydrau103.0 L27.2 gal
Fuel tankDiesel350 L92.6 gal
TransmissionAvailable in goAardvarkAvailable in goAardvark
Front axleAvailable in goAardvarkAvailable in goAardvark
Rear axleAvailable in goAardvarkAvailable in goAardvark
Park brakeAvailable in goAardvarkAvailable in goAardvark
Cooling systemAvailable in goAardvarkAvailable in goAardvark
DEF tankAvailable in goAardvarkAvailable in goAardvark

6 more systems with specs and capacities are in goAardvark.

Unlock full specs

Filters 2 of 19 shown

FilterPart numberChange at
Engine oil filterAvailable in goAardvark500 hr
Primary fuel filterAvailable in goAardvark500 hr
In-line fuel filterAvailable in goAardvarkAvailable in goAardvark
Hydraulic return filterAvailable in goAardvarkAvailable in goAardvark
Hydraulic reservoir breatherAvailable in goAardvarkAvailable in goAardvark
Transmission oil filterAvailable in goAardvarkAvailable in goAardvark
Axle oil filtersAvailable in goAardvarkAvailable in goAardvark
Engine air filter, primaryAvailable in goAardvarkAvailable in goAardvark
Engine air filter, secondaryAvailable in goAardvarkAvailable in goAardvark
Air cleaner dust unloader valveAvailable in goAardvarkAvailable in goAardvark
Fuel tank breatherAvailable in goAardvarkAvailable in goAardvark
Fast fill fuel breatherAvailable in goAardvarkAvailable in goAardvark
Crankcase ventilation (OCV) filterAvailable in goAardvarkAvailable in goAardvark
DEF dosing unit filterAvailable in goAardvarkAvailable in goAardvark
DEF in-line filterAvailable in goAardvarkAvailable in goAardvark
DEF tank breatherAvailable in goAardvarkAvailable in goAardvark
Cab fresh air filterAvailable in goAardvarkAvailable in goAardvark
Cab recirculation filterAvailable in goAardvarkAvailable in goAardvark
Diesel particulate filterAvailable in goAardvarkAvailable in goAardvark

All 19 filters with part numbers are in goAardvark.

Unlock full specs

Fleet PM snapshot

Add up to 5 machines to see when each one hits its next service. This is free and needs no sign-up.

MachineHours nowHours per weekNext serviceAround

1,000 hr at 3,000

160 hr
Dec 8
1 of 5 machines
This snapshot is out of date as soon as the machines run. If your John Deere 644 P-Tier runs 52 hr a week instead of 40, its service lands around Dec 2. If it sits at 24 hr a week, around Dec 27. goAardvark reads real hours from Cat, Deere, Komatsu and Volvo telematics every day, so the dates stay right.
See it live with your fleetRequest a demo and we'll show these machines in goAardvark.

Official John Deere maintenance resources

ManualPurchase

John Deere Technical Information Store

Deere's official store for operator's manuals, technical manuals and parts catalogs.

ManualPurchase

John Deere manuals and training

Deere's starting page for operator publications, technical manuals and training.

PartsFree

John Deere owner support (parts, manuals, maintenance schedules)

Look up a machine by model to find parts, filters, manuals and maintenance schedules on the Deere parts store.

Fluid analysisThrough dealer

John Deere Fluid Analysis program (DKE7440)

Deere's dealer-run oil, coolant and fuel sampling program for engines, hydraulics and powertrains.

Fluid analysisPurchase

John Deere AT346594 Universal Oil Test Kit

Prepaid sample kit for engine oil, hydraulic fluid or powertrain lubricant analysis.

CoverageThrough dealer

PowerGard Protection Plan (construction)

Extended coverage beyond the standard warranty, from engine-only to comprehensive, bought through a Deere dealer.

TelematicsFree account

JDLink and construction fleet connectivity

Deere's telematics for monitoring machine hours, location and alerts and for remote diagnostics.

Maintenance guideFree

644 P Replacement Parts Guide and Service Intervals

Deere quick reference sheet with the 644 P service schedule, capacities and filter part numbers.

Your 644 P-Tier isn't the only machine due for service

Most fleets run several makes side by side. Each has its own manual, intervals and telematics portal. goAardvark pulls hours from all of them and builds one PM schedule for the whole fleet.

Book a demoSnapshot my fleet

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Frequently asked questions

Every 500 service hours under normal operating conditions. Confirm the interval for your serial number in the operator's manual.

Sources

John Deere and other product names are trademarks of their owners. goAardvark is not affiliated with any equipment manufacturer. This page summarizes public information for planning; your operator's manual is the authority for your serial number.

Preventive maintenance · Field checklist

John Deere 644 P-Tier PM checklist

Unit #
Serial number
Hour meter
Technician
Date

Daily

Service taskComponent
Clean air cleaner dust unloader valveEngine
Check hydraulic oil levelHydraulics
Check coolant level at surge tankCooling
Check transmission oil levelDrivetrain
Check engine oil levelEngine
Inspect outer pin sealsIf equipped.Linkage

100 hr

Service taskComponent
Lubricate loader linkage and cylinder pivotsLinkage
Lubricate coupler lock pinsIf equipped.Linkage

250 hr

Service taskComponent
Take engine oil sampleEngine

500 hr

Service taskComponent
Lubricate driveline U-joints and sliding jointsDrivetrain
Lubricate front and rear axle shaft sealsAxles
Check hybrid battery electrolyte levelIf equipped.Electrical
Replace hydraulic reservoir breather filterHydraulics
Check front and rear axle oil levelsAxles
Check air intake hoses and charge air cooler couplingsEngine
Replace fast fill fuel breatherIf equipped.Fuel
Change engine oil and filterEngine
Replace primary fuel filter and water separatorFuel
Replace final fuel filterFuel
Replace in-line fuel filterFuel
Check park brake oil levelBrakes
Lubricate park brake shaft sealsBrakes
Check ride control accumulatorIf equipped.Hydraulics
Take axle, transmission, hydraulic, park brake, fuel and coolant samplesMachine

1,000 hr

Service taskComponent
Replace air cleaner dust unloader valveEngine
Replace engine air cleaner elementsEngine
Replace fuel tank breather filterFuel
Check coolant conditionCooling
Replace axle oil filtersAxles
Lubricate frame hinge pivotsLinkage
Change park brake oilBrakes

2,000 hr

Service taskComponent
Change transmission oil and filterDrivetrain
Check and adjust engine valve lashEngine
Change front and rear axle oilAxles
Replace outer pin sealsLinkage
Replace crankcase ventilation (OCV) filterEngine
Recalibrate transmission clutchesDrivetrain

4,000 hr

Service taskComponent
Replace DEF tank breather filterAftertreatment
Change hydraulic oilHydraulics
Replace DEF dosing unit filterAftertreatment
Clean hydraulic fill strainerHydraulics
Replace hydraulic return filterHydraulics

5,000 hr

Service taskComponent
Check driveline damper for cracksDrivetrain

6,000 hr

Service taskComponent
Drain and refill cooling systemCooling
Replace DEF in-line filterAftertreatment

First 500 hr

Service taskComponent
Replace axle oil filtersAxles

When required

Service taskComponent
Check windshield washer fluid levelCab
Check cab fresh air and recirculation filtersCab
Check and clean precleaner housingIf equipped.Engine
Check and clean heating and A/C housingCab
Inspect tires and check pressureAxles
Check wheel bolt torqueAxles
Clean hydraulic pump case drain in-line screenHydraulics
Check rear camera and object detection systemIf equipped.Electrical
Clean and tighten battery terminalsElectrical
Inspect engine air cleaner elementsEngine
Inspect serpentine beltEngine
Clean cooler coresCooling
Drain water from primary fuel filterFuel
Service exhaust filterAftertreatment
Drain, flush and refill fuel tankFuel
Lubricate cab door hingesCab
Clean debris from coupler lock cylinderIf equipped.Linkage

Source: John Deere 644 P Replacement Parts Guide / Service Intervals (PIN 1DW644PA__L10283-), T456654X019, May 2022. Always confirm with the operator's manual for your serial number.