Installing
Preparing Machine (Large Chassis Tractor)
Required Equipment
• Installation on models 4500-4700 and 4510-4710 requires replacing the lift mounting plates included in the 72-inch Mower Attaching Kit. Contact your John Deere dealer.
Machine Setup
1. Park machine safely. (See Parking Safely in SAFETY.)
2. Follow machine operator’s manual instructions to check tire pressure.
3. Follow instructions in ASSEMBLY in this manual.
4. Position mower on right side of machine.
5. Remove machine mid-PTO shield.
Preparing Machine (Mid Chassis Tractor)
Required Equipment
• Third Selective Control Valve
Machine Setup
1. Park machine safely. (See Parking Safely in SAFETY.)
2. Follow machine operator’s manual instructions to check tire pressure.
3. Follow instructions in ASSEMBLY in this manual.
4. Position mower on right side of machine.
5. Remove machine mid-PTO shield.
Installing Mower (Large Chassis Tractor)
Slide Mower Under Machine
1. Remove quick lock pin (A), and disconnect spring assembly (B) from both front wheel shafts to allow wheels to turn freely.
2. Install quick lock pins in both front wheel shafts.
3. Remove locking ring (C) and drilled pin (D) from both rear wheel shafts.
4. Turn rear wheels sideways. Install drilled pins and locking rings.
5. Turn machine steering wheel fully left.
6. Slide mower from right side of machine into position under lift system.
Adjust Lift Link and Pivot Link Lengths
The lift link and pivot link lengths are set at the factory to the specifications required for a machine equipped with R3 Turf Tires (Rear 44x18-20, Front 27x10.50-15):
• Lift link assembly dimension (A) = 909 mm +/- 10 mm (35.8 +/- 0.4 in.).
• Pivot link assembly dimension (B) = 683 mm +/- 5 mm (26.9 +/- 0.2 in.).
For machines equipped with tires other than R3 Turf, adjust the lift link assembly dimension (A) on both sides as follows:
• Larger tires - increase lift link assembly dimension.
• Smaller tires - decrease lift link assembly dimension.
Connect Draft Arms to Rear Draft Deck Supports
1. Pull back on drilled pin (A) on end of draft arm and insert roll pin (B) into notch (C).
2. Install draft arm fork on rear draft mower support (D). Release the drilled pin and be sure drilled pin is secure in fork and rear draft mower support.
3. Repeat procedure for other side.
Install Front Draft Pivot Assembly
1. Pull J-pins (A) on front of mower outward and turn to unlocked position.
2. Install front draft pivot assembly (B) on mower brackets.
• Machine models 4500-4700, 4510-4710, 4120-4720: Front draft pivot assembly must be installed in forward holes (C) on mower bracket as shown.
3. Pull J-pins outward and turn to locked position, securing front draft pivot assembly.
4. Pull back on drilled pin (D) on front draft pivot assembly and insert roll pin (E) into notch (F).
5. Install front draft pivot assembly on front lift mounting plates (G) on machine.
6. Release the drilled pin (D) as you push lever (H) upward and toward rear of machine. Push the lever until the drilled pin snaps into hole.
Attach Lift Links
Picture Note: Wheel removed to show parts.
1. Install lift link (A) on lift arm (B) with drilled pin, washer (C) and locking ring (D).
2. Pull J-pin (E) on rear draft arm (F) outward and turn to unlocked position.
3. Install lift link (A) on rear draft arm (F).
4. Pull J-pin outward and turn to locked position, securing lift link.
5. Repeat procedure for other side.
Install Driveline
1. Pull collar (A) back and install driveline onto machine mid-PTO shaft.
2. Push driveline onto PTO shaft until it snaps into locked position. Push and pull driveline to be sure collar is locked.
Adjusting Upstop Clearance
1. Check to be sure rear upstop (A) is positioned in bottom hole for 72-inch mower installation on Large Chassis tractor.
Position Mower for Transport
NOTE: Mower may not go into transport position with some tire options.
After installation, check to be sure the mower will raise into transport position.
1. Review instructions on using 3-point hitch, using rockshaft control lever, and using rate of drop/lock valve included in your machine operator’s manual.
2. Follow machine operator’s manual instructions to raise and lower the attachment.
8. Wait for engine and all moving parts to stop before you leave the operator’s seat.
9. Check to be sure the grooves in the mower hangers (A) align with the holes in the rear draft deck supports (B) as shown.
• If the hangers and supports align, see Transporting Mower on Machine in OPERATING to put mower in transport lock position.
• If the hangers and supports do not align, adjust the lift links as described in the next step.
a. Lower the mower to rest on all four wheels.
b. Pull J-pin (C) on rear draft arm (D) outward and turn to unlocked position.
c. Disconnect lift link (E) from rear draft arm.
d. Repeat on other side of machine.
e. Adjust the length of both lift links by turning rod (F) in or out of clevis (G). One full turn of rod will raise or lower the mower 3 mm (1/8 in.).
f. Turn rod in to raise mower or turn rod out to lower mower as needed to align hangers and supports.
g. Install lift links on rear draft arms with J-pins.
h. Check to be sure hangers and supports align.
11. See Transporting Mower on Machine in OPERATING to put mower in transport lock position.
Turn Mower Wheels to Operating Position
Picture Note: Wheels shown in operating position.
2. Turn front wheels to operating position.
3. Remove quick lock pin (A) from both front wheel shafts.
4. Connect spring assembly (B) to both front wheel shafts. Install quick lock pins.
5. Remove locking ring (C) and drilled pin (D) from both rear wheel shafts.
6. Turn rear wheels to operating position. Install drilled pins and locking rings.
Installing Mower (Mid Chassis Tractor)
Slide Mower Under Machine
1. Remove quick lock pin (A), and disconnect spring assembly (B) from both front wheel shafts to allow wheels to turn freely.
2. Install quick lock pins in both front wheel shafts.
3. Remove locking ring (C) and drilled pin (D) from both rear wheel shafts.
4. Turn rear wheels sideways. Install drilled pins and locking rings.
5. Turn machine steering wheel fully left.
6. Slide mower from right side of machine into position under lift system.
Install Driveline
1. Pull collar (A) back and install driveline onto machine mid-PTO shaft.
2. Push driveline onto PTO shaft until it snaps into locked position. Push and pull driveline to be sure collar is locked.
Install Draft Arm on Draft Supports
1. Draft supports have three holes for installing draft arm:
• For 60-inch mower installation on 4200 and 4210 tractors, install draft arm in center hole (A).
• For all other installations, install draft arm in front hole (B).
2. Pull back on drilled pin (C) and allow roll pin (D) to settle in notch (E).
3. Install draft arm (F) in correct hole in draft support (G).
4. Release the drilled pin and make sure pin is secure in the holes.
Adjusting Yoke and Front Pivot Length
The minimum and maximum dimensions for adjustable yoke assembly (A) and front pivot assembly (C) are as follows:
• Yoke and clevises range (B) equals 140 mm - 160 mm (5.5 in. - 6.3 in.).
• Front pivot assembly (C) range (D) equals 584 mm - 624 mm (23.0 in. - 24.6 in.). For standard installation, dimension is around 608 mm (24.0 in.).
Adjusting Upstop Clearance
1. Check to be sure rear upstop (A) is positioned in top hole for 72-inch mower installation on Mid Chassis tractor.
2. Adjust mower level front-to-rear. See Adjusting Mower Level (Front-to-Rear) in OPERATING.
3. Adjust mower level side-to-side. See Adjusting Mower Level (Side-to-Side) in OPERATING.
4. With mower in raised position, measure front upstop clearance (B).
5. Adjust yokes (C) as necessary to provide 3 mm (1/8 in.) front upstop clearance (B) with mower in raised position.
Install Yokes on Lift Arm Weldment
NOTE: Drilled pins must be installed as shown, with locking rings installed on center side of mower, to avoid interference with mower driveline.
The adjustable depth rod may need to be loosened to help install yokes on lift arm weldment.
1. Install yoke forks (A) on lift arm weldment (B) with 12.5 mm x 37 mm pins (C) and locking rings (D).
Install Front Pivot Assembly on Mower
NOTE: Install the front pivot assembly after the mower is positioned under the tractor.
1. Mower brackets (A) have front and rear holes for installing the pivot assembly:
• For 60-inch mower installation on 4200 and 4210 tractors, install pivot assembly in front holes (B).
• For all other installations, install install pivot assembly in rear holes (C).
2. If J-pins (D) on mower bracket are not in correct holes for installing pivot assembly, remove J-pins and install in correct holes.
3. Pull J-pins outward and turn to unlocked position.
4. Install front pivot assembly (E) on bracket. Pull J-pins outward and turn to locked position, securing front pivot assembly.
Install Front Pivot Assembly on Tractor
1. Pull back on drilled pin (A) on front draft pivot assembly and insert roll pin (B) into notch (C).
2. Install front pivot assembly on front attach brackets (D) on machine.
3. Release the drilled pin (A) as you push lever (E) upward and toward rear of machine. Push the lever until the drilled pin snaps into hole.