John Deere 946 and 956 Center Pivot Rotary Mower-Conditioners Diagnostic and Repair Technical Manual

John Deere 946 and 956 Center Pivot Rotary Mower-Conditioners Diagnostic and Repair Technical Manual (TM1824 23 MAR 14)

This technical manual provides an in-depth diagnostic and repair guide for John Deere 946 and 956 Center Pivot Rotary Mower-Conditioners. Covering critical systems such as the powertrain, hydraulics, cutting components, conditioner configurations, and electrical subsystems, the manual is a key tool for troubleshooting, servicing, and restoring full operational capacity.

Model Covers:

John Deere 946 and 956 Center Pivot Rotary Mower-Conditioners

File Format: PDF

Size: 14.84 MB

No. of pages: 443

Language: English

Delivery Method: Instant Download – Access your file immediately after purchase.

📑 Included Sections:

Safety and General Maintenance

• Operator safety protocols and chemical handling procedures
• Machine identification, serial number records, and lubrication charts
• Standard and metric torque specifications for bolt assemblies

Power Train System

• Driveline malfunction diagnostics and lock-back collar disconnection
• PTO hookup, tongue pivot, and cutterbar U-joint repair
• Gear case repairs: hitch, platform, tongue, and cutterbar configurations
• Belt drives, tensioners, sheave bearings, and adjustable idlers

Cutting Assembly and Cutterbar Service

• Removal and synchronization of disks and knives
• Quill and pinion gear timing diagrams with center/alternating rotation
• Module disassembly, bearing inspections, and shield adjustments

Conditioner Modules

• Roll conditioner and impeller malfunction diagnosis
• Upper and lower roll arm bearing replacement
• Roll installation: urethane, tri-lobe, and V-10 types
• Impeller speed changes and bearing service (LH and RH)

Hydraulic System

• Lift, swing, and top-link tilt cylinder diagnostics and repairs
• Cylinder disassembly, hose routing, and orifice installation
• Platform lift circuit bleeding and cylinder rephasing

Platform and Frame Structure

• Gauge shoe replacement and platform float adjustment
• Windrow width control and crop height configurations
• Carrier frame leveling and tongue removal/install procedures

Electrical and Miscellaneous Repairs

• Tail/warning light wiring harness schematics
• Wheel bearing servicing for mower and transport types
• Dealer-fabricated tools including backlash measurement strap

This John Deere 946 and 956 Center Pivot Rotary Mower-Conditioners Technical Manual is an indispensable resource for field technicians and service professionals performing diagnostics, part replacements, and full mechanical overhauls.