OMHXE13769: 9670 STS and 9770 STS Combines 9670 STS 735201 9770 STS 735301 , Block File: OUO6075_00001F2_19

Chaffer/Sieve Elements (Without Self-Leveling Shoe)-Remove and Install

causym CAUTION: Shut OFF engine, set parking brake and remove key to help prevent accidental starting and personal injury.

NOTE: It is not necessary to remove straw chopper (if equipped) to remove chaffer/sieve elements. Chopper must be in fully raised position.

Sieve removal is similar to chaffer removal.

1. Raise spreader (if equipped) and remove pins (B).

2. Remove spreader disks (A).

A-Disk
B-Quick-Lock Pin

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3. Without Optional Automatic Combine Adjust: Loosen gauge adjustment screw (A) in chaffer/sieve element (B).

A-Adjustment Screw
B-Chaffer/Sieve Element

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4. Without Optional Automatic Combine Adjust: Slide chaffer/sieve opening gauge (A) inside chaffer/sieve element.

A-Gauge

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5. With Optional Automatic Combine Adjust: Disconnect electrical harness (A).

A-Chaffer/Sieve Harness

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NOTE: Chaffer motor does not have to be removed.

6. With Optional Automatic Combine Adjust: Remove cap screws (A) and cover to access chaffer motor.

A-Cap Screws

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7. With Optional Automatic Combine Adjust: Remove cap screws (A) and shield.

A-Cap Screws

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8. Remove chaffer/sieve retaining bolts (A) and springs from both sides.

A-Retaining Bolts

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9. Remove round head bolts (A) and chopper shroud (B) from both sides of chopper.

10. Slide chaffer/sieve element through rear of machine.

11. Inspect grain seals on chaffer/sieve element and repair or replace as needed.

12. Install chaffer/sieve element through rear of machine and tighten retaining bolts on both sides to specification.

Specification

Chaffer/Sieve Retaining Bolts -Torque

100 N·m

(74 lb-ft)

13. Install chopper shroud (B) and round head bolts (A) on both sides of chopper.

A-Round Head Bolts (3 Used)
B-Chopper Shroud (2 Used)

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14. With Optional Automatic Combine Adjust: Install shield and retain with cap screws (A).

A-Cap Screws

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15. With Optional Automatic Combine Adjust: Install chaffer motor cover and retain with cap screws (A).

A-Cap Screws

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16. With Optional Automatic Combine Adjust: Connect electrical harness (A) and calibrate chaffer/sieve (see Calibration Procedures section.

A-Chaffer/Sieve Harness

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17. Without Optional Automatic Combine Adjust: Slide chaffer/sieve opening gauge (A) through sidesheet.

A-Gauge

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18. Without Optional Automatic Combine Adjust: Calibrate opening gauge to proper dimension.

a. Crank chaffer/sieve to full open position.

b. Close slowly until average opening measurement (A) is approximately 8 mm (5/16 in.).

c. Slide chaffer/sieve opening gauge (B) to read 8 mm at sidesheet (C).

d. Tighten gauge adjustment screw (D) in chaffer/sieve element (E).

19. Install spreader disks and lower straw spreader or chopper.

A-Measurement, 8 mm (5/16 in.)
B-Chaffer/Sieve Opening Gauge
C-Sidesheet
D-Adjustment Screw
E-Chaffer/Sieve Element

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