Service

Checking Belt Tension

M41860

1. Check position of belt tension rod (A):

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• If rod end is in position (B), against the vertical frame rail (C), the belt is too tight and must be loosened.

• If rod end is in position (D), extends beyond horizontal frame rail (E), the belt is too loose and must be tightened.

2. Adjust belt tension:

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• Loosen nut (F) on the idler pulley.

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• To tighten belt, turn bolt (G) counter-clockwise until 3 mm (1/8 in.) clearance exists between rod end (H) and vertical frame rail (C).

• To loosen belt, turn bolt (G) clockwise until 3 mm (1/8 in.) clearance exists between rod end (H) and vertical frame rail (C).

3. Tighten nut on the idler pulley after adjustment.

Cleaning Under Belt Shield

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1. Remove screws (A) and belt shield (B).

2. Clean dirt from sheave with water pressure.

3. Install shield and screws.

Removing Primary Drive Belt

1. Remove tiller from tractor.

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2. Loosen nut (A). Move belt guide (B) away from belt.

3. Loosen bolts (C).

4. Remove belt.

5. Remove secondary belt.

Installing Primary Drive Belt

1. Install belt on drive sheave.

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2. Tighten bolts (A).

3. Install belt between belt idler and belt guide (B).

4. Push the arm to the right. Point belt guide toward drive sheave, as shown. Tighten cap screw (C).

Removing Secondary Belt

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1. Remove two self tapping screws (A) and belt shield (B).

2. Loosen bolt (C).

3. Turn bolt (D) so idler (E) moves up in the slot.

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4. Remove secondary belt from front idler (F).

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5. Remove secondary belt from front drive sheave (G).

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6. Remove nut (H) and V-idler (I).

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7. Remove secondary belt (J).

Installing Secondary Drive Belt

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1. Install new secondary drive belt as shown.

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2. Install V-idler (A) and nut (B).

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3. Turn bolt (C) so idler (D) is seated as far down as possible in slot.

4. Tighten bolt (E).

5. Install shield (F) and fasten with two self tapping screws (G).

Replacing Tines

c CAUTION: Avoid injury! Support raised tiller with blocks. Wear heavy gloves when working around sharp tines.

1. Park machine safely.

2. Raise tiller as high as it will go.

NOTE: For ease in replacing tines, you can remove tiller from the tractor and turn it completely upside down.

3. Put tiller in the transport position.

4. Put blocks under the tiller.

NOTE: Each cluster of tines must have two left tines (D) and two right tines (E):

• Alternate left and right tines in each cluster.

• A bolt with no spacer is an M10x35 bolt.

• A bolt with one spacer is an M10x45 bolt.

• A bolt with two spacers is an M10x60 bolt.

5. Replace tines.

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Picture Note: Left Cluster

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Picture Note: Mid Cluster

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Picture Note: Right Cluster

6. Tighten bolts.

Adjusting Chain

NOTE: This procedure is for tillers with Serial No. below 140000.

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1. Remove bolts (A) from chain shield (B).

2. Remove shield. The shield is fastened to tiller with glue.

NOTE: Rotate and make sure chain does not become tight due to the sprockets being off center.

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3. Adjust idler (C) until chain deflects or can be pushed up 6-10 mm (1/4-3/8 in.) (D) near center of top links.

4. Remove old glue from shield. Apply fresh glue to shield. (See your John Deere dealer for the correct glue.)

NOTE: Adjust chain before lubricating.

5. Lubricate the chain.

6. Install shield and bolts.