John Deere

OMMT6006

Issue B8

Walk-Behind Greensmower

180A

(Serial No. 010001 - )

220A

(Serial No. 030001 - )

Introduction

Safety Labels

Controls

Operating - Machine

Operating - Cutting Units

Adjusting Cutting Height

Adjusting Handlebar

Adjusting Bed Knife-To-Reel

Engaging Greens Tender Conditioner (GTC) Or Rotary Brush

Adjusting Greens Tender Conditioner (GTC) Or Rotary Brush

Service Safely

Service Interval Chart

Service Lubrication

Service Engine

Service - Cutting Units

Service - Belts

Troubleshooting

Storing Machine

Assembly

Specifications

Warranty

John Deere Quality Statement

CopyrightŠ Deere & Company

All Manuals Close Window

Operating - Cutting Units


Adjusting Cutting Height

c CAUTION: Avoid injury! Stop engine and DISENGAGE reel and travel clutches before making any adjustments.

NOTE: Always adjust bed knife to reel before adjusting cut height.


M60554a

1. Loosen T-handle (A) on each
side until adjusting bracket slides easily.


E29234

2. Loosen wing nut (B) and set
gauge (C) to desired cutting height.

3. Place gauge (C) against bottom of front and rear rollers and bed knife cutting surface.

4. Move front roller up or down using adjusting knob.


M72976

5. Adjust height to gauge (C) by adjusting front roller until knife becomes slightly tight to underside of screw head (D).

6. Repeat on opposite side.

7. Check cutting height on both ends with gauge. Readjust height as necessary.

8. Tighten T-handles on both sides.

Adjusting Handlebar


M60558

The height of handlebar can be adjusted by loosening cap screw (A) on each side of machine.

Position handlebar to desired position and tighten cap screw (A).

NOTE: Make sure bracket (B) is straight up and down, and not at an angle.

Adjusting Bed Knife-To-Reel

c CAUTION: Avoid injury! Before using adjusting handle (B), STOP engine and DISENGAGE clutches.

NOTE: Reel must be free to turn by hand.


M60556

1. To adjust clearance between
knife and reel blades, loosen clamp screw (A) on both sides using a 6 mm allen wrench.

2. Turn adjusting handle (B) CLOCKWISE to DECREASE clearance.

ˇ Turn adjusting handle (B) COUNTERCLOCKWISE to INCREASE clearance.

c CAUTION: Avoid injury! Always wear gloves when manually rotating reel.


M72977

ˇ Adjust ends of reel to .001" with feeler gauge (C).

ˇ Now inspect the entire length of the bed knife with a .002" feeler gauge. It should not go in anywhere. If it does, go to Step 7.

c CAUTION: Avoid injury! Always wear protective gloves when working on or near the reel or bed knife. Severe personal injury can result from contact with the sharp cutting edges.

ˇ If the reel is contacting anywhere, to to Step 6.

NOTE: Always rotate the reel in the reverse direction to avoid damaging or dulling the cutting edges of the reel or bed knife.


M72979

ˇ Slowly rotate the reel (D) backwards watching for contact between the reel and bed knife at the center of the bed knife. If contact is made, backlap the reel and bed knife to eliminate the "Frown" in the bed knife or the out-of-round condition of the reel.


M72978

ˇ Measure the clearance at the center of the bed knife. If the clearance exceeds.002 of an inch, backlap the reel and bed knife to eliminate the "Smile" in the bed
knife or the out-of-round condition of the reel.


M60556

ˇ When properly adjusted and sharpened, each reel blade should cut a piece of paper held at 90° to
the top surface of the bed knife along the entire length of the bed knife with 0-.001" clearance.

ˇ Tighten clamp screw (E) on both sides.

NOTE: Do not overtighten knife
to reel. Overtightening
can cause damage to
knife or cutting edges.

Engaging Greens Tender Conditioner (GTC)
Or Rotary Brush

c CAUTION: Avoid injury! DISENGAGE clutches and STOP engine.


M60623a

1. Loosen T-handles (A) on each side.

2. Move slide block (B) so that adjusting knob (C) is setting on lower step.

3. Repeat for the other side.

4. Tighten T-handles (A) on each side.


M60622

5. Turn knob (D) CLOCKWISE to the detent RUN position.

6. To DISENGAGE GTC or rotary brush, turn knob (D) COUNTERCLOCKWISE to the detent OFF position.


M60623

7. Loosen T-handles (E) on each side.

8. Move slide block (F) so that adjusting knob (G) is setting on the top step.

9. Repeat for the other side.

10. Tighten T-handles (E) on each side.

Adjusting Greens Tender Conditioner (GTC)
Or Rotary Brush

c CAUTION: Avoid injury! Stop engine and DISENGAGE reel clutch before making any adjustment.


M60623

1. Loosen T-handle (A).

2. Loosen jam knob (B).

3. Set adjusting knob (C) on lower step of sliding block (D).

4. Repeat on the other side.


M72976

5. Measure from top of screw head
to top of gauge (E). This is the cutting height (F).

6. Loosen wing nut (G) and adjust screw (H) to 1 mm (1/32-in.) ABOVE the cutting height (with rotary brush), or 1 mm (1/32-in.) BELOW the cutting height (with greens tender conditioner).


E29234

7. Place gauge (I) against bottom of front and rear rollers and bed knife cutting surface.


M60623

8. Use adjusting knob (J) to set height on each side.

9. Tighten jam knob (K).

10. Tighten T-handle (L).

11. Repeat for the other side.

NOTE: If brush or cutter is not adjusted correctly, lower engine rpm or the machine pulling to one side can be expected.