Turn manuals into instant answers
with your AI-powered assistantTurn manuals into instant answers
with your AI-powered assistant
Get instant access to all the maintenance information you need. Empower technicians to perform preventive maintenance with asset packages, ready to use right out of the box.
Find all the essential guides in one place.
Tensioning Guide
Belt-diagram
C-120 pulleys
+ 13 more
Pre-built workflows to keep your asset running smoothly.
Daily Electrical System Inspection
Replace Roller and Pulley
Install Engine B-120
+ 29 more
Integrate maintenance plans directly into your work orders.
Motion Industries
Applied Industrial Technologies
Electrical Brothers
+ 5 more
Access the parts list for your equipment in MaintainX.
Drive Motor
B2 Rollers
Tensioning System
+ 40 more
John Deere Heavy-Duty Flail Mower 390
Create an account to install this asset package.
Integrate maintenance plans directly into your work orders in MaintainX.
Mower to Tractor with Three-Point Hitch Maintenance
Place draft control lever fully forward to the position marked "OFF" (A) for no draft sensing
Extend tractor telescoping draft link ends (if equipped)
Back up the tractor to mower with hitch points approximately in alignment
Engage tractor park brake and/or place transmission in "Park"
Shut off engine and remove ignition key
Remove center link mounting hardware and hitch pin assemblies at both hitch masts
Align draft links with hitch masts and install hitch pin assemblies according to the tractor hitch category. (See POSITIONING HITCH PINS in Preparing the Mower section)
Start tractor engine
Carefully back up tractor making sure both left and right draft link ends lock
As Required Maintenance
Driveline Shields Check
Hitch Pin Torque Check
Check hitch pin lock nut (A) on pivot plate periodically to be sure that it is tight.
Tighten to specifications. (See CAP SCREW TORQUE VALUES in Specifications Section)
Sign off on the maintenance
Gear Case Replacement
Loosen driven shaft bearing mounting bolts (A)
Remove bolts (B) from driven shaft shield support
Remove PTO driveline shield (C) by removing (4) bolts (D)
Loosen (4) Support bolts for gear case (E)
To release bolt heads, slide the gear case forward in the grooves
Pull up the gear case towards the opposite side of the driveshaft
Apply multipurpose grease on output shaft of gear case
Tighten bolts to specifications
Install PTO driveline shield (C) on the correct hole locations (F) as illustrated
PTO Driveline and Rear Safety Deflector Replacement
Apply multipurpose grease on the input shaft of gear case
Align splines by rotating mower driveline
Pull locking collar (A) and simultaneously push driveline onto the input shaft of gear case until locking device engages
Pull back on shield (B) to make sure that driveline is locked
Attach PTO driveline shield chain (C) to a fixed point on mower
Install rubber if equipped safety (A) deflector to the inside of the mower mainframe using provided hardware
Tighten all mounting hardware after deflector installation
Sign off on the PTO Driveline and Rear Safety Deflector Replacement
Knives Inspection
Warning: Ensure the mower is turned off and unplugged before starting the inspection
Knives are undamaged
Knives are not worn
Measure the knife hole for the securing ring
Knife hole for the securing ring is not worn by more than 3.2 mm
Upload a photo of the knives
Sign off on the knives inspection
Access the parts list for your equipment in MaintainX.
Sway Chain
LX001802
Sway Chain
LX001802
Sway Chain
LX001802
MaintainX CoPilot is your expert colleague, on call 24/7, helping your team find the answers they need to keep equipment running.
Reduce Unplanned Downtime
Ensure your team follows consistent procedures to minimize equipment failures and costly delays.
Maximize Asset Availability
Keep your assets running longer and more reliably, with standardized maintenance workflows from OEM manuals.
Lower Maintenance Costs
Turn any technician into an expert to streamline operations, maintain more assets, and reduce overall costs.
Thousands of companies manage their assets with MaintainX