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Operating


Raising and Lowering Mower

The mower may be raised or lowered using tractor rockshaft control lever or dual selective control valve (SCV) lever, depending on your installation. Mower lift kits are either mechanical (no hydraulic cylinder) or independent (has hydraulic cylinder).

Mowers With Mechanical Lift Kits

1. Review Using the Rockshaft Control Lever and Using Speed of Drop/Lock Valve instructions in your tractor operator’s manual.

2. Push the rockshaft control lever forward to lower the mower, or pull the lever rearward to raise the mower.

Mowers With Independent Lift Kits

1. Review Using Hydraulic Dual SCV and Using Dual SCV Lock Lever instructions in your tractor operator’s manual.

2. Follow the instructions in your tractor operator’s manual to lock out the dual SCV regen function.

3. Pull the dual SCV lever to the right to lower the mower, or push the lever to the left to raise the mower.

Adjusting Cutting Height

Mower cutting height can be adjusted from approximately 25–127 mm (1–5 in.), depending on the machine. When mower deck is in highest (transport) position, cutting height is approximately 127 mm (5 in.).

1. Stop machine on a hard, level surface.

2. Raise mower deck to highest (transport) position.

3. Turn cutting height knob to desired cutting height. Mower will be at that cutting height when it is lowered.

4. Lower mower deck.

5. Park machine safely. (See Parking Safely in the Safety section.)

6. Check that the actual height of cut matches, within 6.35 mm (1/4 in.), the reading on the cutting height knob. If they do not match, adjust mower deck side-to-side and/or front-to-rear.

Adjusting Mower Level (Side-to-Side)

c CAUTION: Avoid injury! Rotating blades are dangerous. Before adjusting or servicing mower:

• Park machine safely and remove key.

• Always wear gloves when handling mower blades or working near blades.

IMPORTANT: Avoid damage! Mower deck lift system can be damaged if lift arms are not adjusted correctly. Check adjustment each time mower is installed or removed to allow gap between lift arms and frame stop at full lift height.


NOTE: Mower wheels should not contact the ground when leveling the deck.

1. Park machine safely. (See Parking Safely in the Safety section).

2. Inflate tires to correct pressure.

3. Raise mower deck to highest (transport) position.


MX16511

4. Check that the lift arm (A) does not contact the frame stop (B). If needed, adjust yokes (C) on both sides of mower until there is a slight gap of 1.6 mm (1/16 in.) on both sides.

• Remove spring locking pin (D) and drilled pin (E) from each lift arm.

• Turn each yoke (C) clockwise to raise the lift arm.

• Turn each yoke (C) counterclockwise to lower the lift arm.

• Attach each yoke to lift arm with drilled pin (E) and spring locking pin (D).

5. Lower mower deck to level surface.

NOTE: The difference between blade measurements must not be more than 3 mm (1/8 in.).

6. Turn left blade parallel to axle and complete measurement. Hold drive belt and turn right blade parallel to axle and complete measurements.


MX11181

Picture Note: A convenient leveling gauge (F) is available from your John Deere dealer.

7. Measure from each outside blade tip (G) to the level surface.


MX16511

8. Remove spring locking pin (D) and drilled pin (E) from each lift arm (A).

9. Adjust yoke:

• Turn yoke (C) counterclockwise to lower mower deck.

• Attach yoke to lift arm with drilled pin and spring locking pin.

Adjusting Mower Level (Front-to-Rear)

c CAUTION: Avoid injury! Rotating blades are dangerous. Before adjusting or servicing mower:

• Disconnect spark plug wire(s) or battery negative (-) cable to prevent engine from starting accidently.

• Always wear gloves when handling mower blades or working near blades.

NOTE: Mower wheels should not contact the ground during leveling.

1. Lower mower deck to level surface.

2. Park machine safely. (See Parking Safely in the Safety section.)

3. Inflate tires to correct pressure.

4. Turn right blade so tip points straight forward.


M40137a

5. Measure distance (A) from front of blade tip to level surface. The difference between front and rear measurements must not be more than 3-6 mm (1/8-1/4 in).


MX11040a

6. Loosen two rear nuts (B) on front deck hanger.

7. Adjust two front nuts:

• Turn two front nuts (C) clockwise to raise front of mower deck.

• Turn two front nuts (C) counterclockwise to lower front of mower deck.

8. Measure distance (D) from end of nut to end of bolt. This measurement should be the same on each side of the front deck hanger.

9. Tighten rear nuts after making adjustment.

10. Measure blade tips again and adjust front deck hanger if necessary.

11. Connect spark plug wires.

Adjusting Mower Deck Wheels

c CAUTION: Avoid injury! Rotating blades are dangerous. Before adjusting or servicing mower:

• Disconnect spark plug wire(s) or battery negative (-) cable to prevent engine from starting accidently.

• Always wear gloves when handling mower blades or working near blades.

IMPORTANT: Avoid damage! The mower deck can be damaged if mower wheels are adjusted wrong:

• Wheels must not ride on ground supporting mower weight.

• Check wheel adjustment each time cutting height is changed.


1. Inflate tires to correct pressure.

2. Raise mower deck to highest (transport) position and adjust cutting height.

3. Lower deck to mowing position.

4. Park machine safely. (See Parking Safely in the Safety section).

NOTE: Bottom of wheels should be approximately 6-13 mm (1/4-1/2 in.) from the ground.


MX11075

5. Pull gauge wheel release rod (A) and position wheel in correct hole (B). See decal located on deck.

Engaging Mower

1. Review instructions on using mid-PTO included in your machine operator’s manual.

2. Follow machine operator’s manual instructions to engage mid-PTO and mower.

Mower Blade Selection

• Standard Blades: Designed for bagging, side discharging and all mowing conditions.

• Mulching Blades: Should be used with the Optional Mulch Kit.