John Deere R944i R952i R962i Trailed Sprayers Service Manual

John Deere M944i M952i M962i Trailed Sprayers Repair Manual

John Deere R944i R952i R962i Trailed Sprayers Repair Manual

John Deere Repair Manual

(TM403719)

Covered models:
M944
M952
M962
M944i
M952i
M962i
R944i
R952i
R962i

Illustrated Factory Service Repair Technical Manual for John Deere Sprayers Models M944, M952, M962, M944i, M952i, M962i, R944i, R952i and R962i.

The Essential John Deere R900i Series Sprayers Service Manual

The John Deere R900i Series trailed crop sprayers—comprising the R944i, R952i, and R962i models—represent the pinnacle of agricultural spraying technology. With tank capacities ranging from 4,400 liters on the R944i to 6,200 liters on the R962i, and featuring the advanced dual-circuit PowrSpray system, these machines are designed for maximum efficiency and application accuracy . To keep these sophisticated implements operating at peak performance, access to comprehensive technical documentation is essential. The John Deere R944i, R952i, and R962i Trailed Sprayers Service Manual is that definitive resource.

While operator’s manuals (such as OMWZW16250 or OMWZW15980) cover daily operation and basic maintenance, the service manual delves deep into every system of these complex sprayers . It provides the same detailed information used by factory-trained technicians, enabling owners and mechanics to perform advanced diagnostics, repairs, and calibrations.

The heart of these sprayers is the PowrSpray dual-circuit hydraulic system, which features separate pumps for filling and spraying . The service manual provides complete coverage of this system, including the 1,200 L/min self-priming centrifugal filling pump and the 750 L/min centrifugal spray pump . It includes detailed hydraulic schematics, pressure testing procedures, and repair instructions for pumps, valves, and the Solution Command operator’s station with its electronic controls .

John Deere R944i R952i R962i Trailed Sprayers Service Manual

SEO Table of Contents: John Deere R944i, R952i & R962i Trailed Sprayers Service Manual

Main SectionContent DescriptionKey Topics Covered
General InformationManual organization, safety, and machine specificationsModel identification (R944i, R952i, R962i), serial number locations, general specifications, safety protocols, fluid recommendations, torque values
Tank and FrameMain tank, rinse tank, and chassis structurePolyethylene tank design (4,400 L, 5,200 L, 6,200 L capacities), 620 L rinse tank, deep sump tank with steep sloping bottom, digital tank level indication, dual-stage dry liquid level indicator, mainframe construction, cross structure center section 
Axle and SuspensionRunning gear and suspension systemsProRoad double-linked axle suspension, fixed and steering axle options, maintenance-free polyurethane dampers (4), wheel bearings, tire specifications, track width adjustment, automatic tracking system 
Hydraulic SystemsMain hydraulic system service and repairDual-circuit PowrSpray system, 1,200 L/min self-priming centrifugal filling pump, 750 L/min centrifugal spray pump, load sense hydraulic pump drive, Direct Rate Control, hydraulic schematics, pressure testing, valve body repair, cylinder rebuilding 
Solution SystemChemical application and fluid handlingFilling circuit with programmable fill level, Active Pause function, spraying circuit, agitation system (injector-based with power mode), AutoDilute stepwise dilution and rinsing, chemical inductor (PowrFill eductor hopper), 10-bar primary pressure regulator, non-return check valve, closed chemical transfer connection (optional) 
Spray Boom SystemsBoom structure and nozzle systemsDouble and triple-folding booms (24-40 m), 25 cm and 50 cm nozzle spacing options, pressure recirculation spray system, TwinSelect automatic nozzle control (2.0), Individual Nozzle Control Pro, Section Control, five-way nozzle holders, air-controlled nozzle bodies 
Boom Control SystemsAutomatic boom managementBoomTrac automatic boom tilt and height control, TerrainCommand Pro (3 or 5 ultrasonic sensors), proportional hydraulic valves with temperature compensation, headland management, variable geometry wing control 
Electrical SystemWiring diagrams and electronic componentsISOBUS communication, Multi-Function Controller (MFC), micro keypad and display, GS2 1800 and GS3 2630 displays, wiring harnesses, fuses, connectors, component location diagrams, electrical schematics 
Operator’s StationControl systems and operator interfaceSolution Command operator’s station, micro keypad with icons, protective covers, LED station light (optional), clothing lockers, chemical safety card holder, hand-wash tank (18 L), multi-function lever for sprayer control 
PTO and DrivelinePower input systemsWide-angle PTO shaft (standard), hydraulic motor pump drive (optional), PTO speed specifications, driveline components, universal joints, safety shields 
Brake SystemsService and parking brakesHydraulic braking system, pneumatic brake options, hydraulic emergency brake valve, brake hose coupling, brake adjustments 
Testing and AdjustmentsDiagnostic and calibration proceduresSystem pressure testing, sensor calibration (speed, flow, pressure), nozzle output testing, spray pattern verification, pump flow testing, rate control calibration, boom height sensor adjustment
TroubleshootingFailure diagnosis and repairProblem diagnosis charts, error code interpretation, electrical circuit testing, hydraulic system troubleshooting (low pressure, poor agitation, uneven application), boom control issues, solution system faults
Disassembly and AssemblyComponent removal and installationStep-by-step repair procedures, torque specifications, special tool requirements, pump overhaul, valve body service, cylinder rebuilding, boom component replacement
Diagrams and SchematicsComplete system diagramsHydraulic circuit diagrams, electrical wiring diagrams, solution system flow diagrams, pneumatic system schematics (where applicable), component location diagrams
MaintenanceScheduled service proceduresLubrication charts, filter replacement intervals (suction line filters, pressure filters), pump oil level checks, nozzle maintenance, calibration procedures, predelivery inspection checklist 
Special ToolsDealer and fabricated toolsRequired special tools for service procedures, tool fabrication instructions, dealer tool information

Key Manual Specifications

SpecificationDetail
Compatible ModelsJohn Deere R944i, R952i, R962i Trailed Crop Sprayers
Tank CapacitiesR944i: 4,400 L (1,162 gal); R952i: 5,200 L (1,374 gal); R962i: 6,200 L (1,638 gal) 
Rinse Tank Capacity620 L (163 gal) on all models 
Boom Options24-40 m double or triple-folding booms 
Pump SystemDual-circuit PowrSpray with 1,200 L/min fill pump and 750 L/min spray pump 
Control SystemMulti-Function Controller (MFC) / ISOBUS compatible 
FormatInstant Download PDF (Printable, Searchable)
LanguageEnglish
ManufacturerJohn Deere Fabriek Horst B.V.

John Deere M944i, M952i, M962i, R944i, R952i, R962i Trailed Sprayers Repair Manual
John Deere M944i, M952i, M962i, R944i, R952i, R962i Trailed Sprayers Repair Manual
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John Deere R944i R952i R962i Trailed Sprayers Service Manual