Reel Drive Chain - D. MacDon D50 & D60

SECTION 8. MAINTENANCE AND SERVICING

8.9.4 REEL DRIVE CHAIN - D60

DANGER

To avoid bodily injury from fall of raised reel, always engage reel props before going under raised reel for any reason.

a. Lower header, raise reel, and engage reel props .

E

D

A

C

A

B

DOUBLE REEL b. On double reel headers, the drive is located on the center reel arm. Remove drive cover (A) by removing seven screws (B) and two screws (C).

The cover comes off in two pieces

SINGLE REEL - D60 ONLY c. On 60 single reel headers, the drive is located on the right outside arm. Remove the one piece cover (D) by removing four screws (E).

H

F

J

G

G

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SINGLE REEL SHOWN - DOUBLE REEL SIMILAR d. The tension on the chain (F) should be such that hand force deflects the chain 1/8 inch (3 mm) at mid-span. Adjust as follows:

1. Loosen six bolts (G) on motor mount.

2. Slide the motor (H) and motor mount (J) until the required tension is achieved.

3. Tighten bolts (G) to 75 ft·lbf (102 N·m).

4. Re-install drive cover(s).

NOTE

On double reel headers, install screws

(C) after both cover halves have been positioned.

Revision B

Reel

SECTION 8. MAINTENANCE AND SERVICING

8.9.4.3 Drive Chain - D60 Double Reel

a. Remove reel drive cover. Refer to previous section.

DANGER

To avoid bodily injury from fall of raised reel, always engage reel props before going under raised reel for any reason.

Removal

a. Remove reel drive cover. Refer to previous section.

E

H

B

D b. Loosen six bolts (E).

C

A

F

A

G b. Loosen bolts (A), and slide motor (B) and motor mount (C) down towards reel shaft.

Installation

a. Position chain (D) around sprockets as shown opposite. b. Slide the motor (B) and motor mount (C) until the tension on the chain (F) is such that hand force deflects the chain 1/8 inch (3 mm) at mid-span. c. Tighten nuts (A), and re-check tension. d. Re-install drive cover.

E c. Slide motor (F) and motor mount (G) down towards reel shaft to loosen chain (H).

The endless chain (H) can be replaced by:

Method 1: Disconnecting The Reel Drive

(see 8.9.4.3.1).

OR

Method 2: Breaking The Chain, and installing a new chain with a connector link

(see 8.9.4.3.2).

Method 1 is preferred because the chain integrity is not affected.

(continued next page)

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Revision B

SECTION 8. MAINTENANCE AND SERVICING

8.9.4.3.1 Disconnecting the Reel Drive

(Method 1):

c. Loosen the RH reel arm brace by loosening bolt

(L) on back-tube.

d. Move RH reel “sideways” to separate the reel tube and the U-Joint (K).

H

E a. Support inboard end of right reel with a front end loader and nylon slings (or equivalent set-up).

IMPORTANT

To avoid damaging or denting center tube, support reel as close as possible to the end disc. f. Route new chain (H) over U-Joint (K), and locate on sprockets.

F

K

J

G b. Remove four bolts (J) attaching reel tube to Ujoint (K).

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123

E g. Slide the motor (F) and motor mount (G) until the tension on the chain (H) is such that hand force deflects the chain 1/8 inch (3 mm) at mid-span. h. Tighten nuts (E) and re-check tension. i. Position RH reel tube against reel drive, and engage stub shaft into U-joint (K) pilot hole. j. Rotate reel until holes in end of reel tube and Ujoint line up. k. Apply Loctite® #243 (or equivalent) to four ½” bolts (J), and install with lock-washers. l. Torque to 75 - 85 ft·lbf (102 - 115 N·m). m. Remove temporary reel support. n. Re-tighten reel arm brace bolt (L), and torque to

270 ft·lbf (366 N·m).

Revision B

SECTION 8. MAINTENANCE AND SERVICING

8.9.4.3.2 Breaking the Chain (Method 2):

a. Grind off the head from one of the link rivets, and punch out the rivet to separate the chain. b. Locate ends of chain on sprocket.

DIRECTION OF ROTATION

B

A

C

D

C c. Install pin connector (A) (not available as a

MacDon part) into chain, preferably from the sprocket backside. d. Install connector (B) onto pins. e. Install spring clip (C) onto front pin (D) with closed end of clip in direction of sprocket rotation. f. Locate one leg of clip in groove of aft pin (E). g. Press other leg of spring clip over face of aft pin

(E) until it slips into groove. Do not press clip lengthwise from closed end. h. Ensure clip is seated in grooves of pins.

F

G

H i. Slide the motor (F) and motor mount (G) until the tension on the chain is such that hand force deflects the chain 1/8 inch (3 mm) at mid-span. j. Tighten nuts (H), and re-check tension. k. Re-install drive covers.

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Revision B

SECTION 8. MAINTENANCE AND SERVICING

8.9.5 REEL DRIVE CHAIN - D50

DANGER

To avoid bodily injury from fall of raised reel, always engage reel props before going under raised reel for any reason.

a. Lower header, raise reel, and engage reel props.

8.9.5.2 Removal - Drive Chain

DANGER

To avoid bodily injury from fall of raised reel, always engage reel props before going under raised reel for any reason.

a. Remove reel drive cover. Refer to previous section. b. Loosen drive chain (C) by loosening bolts (D), and sliding motor and motor mount (E) down towards reel shaft.

A

8.9.5.3 Installation - Drive Chain

a. Position chain (C) around sprockets as shown. b. Slide the motor and motor mount (E) until the tension on the chain (F) is such that hand force deflects the chain 1/8 in. (3 mm) at mid-span. c. Tighten nuts (D), and re-check tension. d. Re-install drive cover.

B b. Remove six screws (A), and remove cover (B).

E

C

D

D c. The tension on the chain (C) should be such that hand force deflects the chain 1/8 inch (3 mm) at mid-span. d. To adjust the tension, loosen four bolts (D). e. Slide the motor and motor mount (E) until the required tension is achieved. f. Tighten bolts (D) to 75 ft·lbf (102 N·m). g. Re-install drive cover.

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Revision B