Install Left-Hand Lower Drive Roll Bearing

CAUTION: To prevent bearing failure, always loosen the three RIGHT-HAND SIDE flange mounting bolts (A) before tightening left side (drive side) center M12 cap screw (B)

1. Right-hand Side: Loosen three flange mounting cap screws (A) and cap screw (C). Finger tighten cap screws (A) to allow side-to-side movement of cast housing and position roll to check roll wiper-to-sidesheet clearance.

2. Left-hand Side: Remove crop buildup around shaft and roll area.

3. Wire brush roll shaft.

A-Flanged Mounting Bolts (3 used)
B-Cap Screw, M12 x 80
C-Cap Screw, M12 x 80

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IMPORTANT: Locate housing with "UP" stamp (A) toward top of baler.

Clean washers and replace if necessary.

A-Stamp (UP)

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IMPORTANT: All 1.5 and 3.0 mm (0.06 and 0.12 in.) thick washers must machined and hardened on left-hand lower drive roll position to avoid center bolt (D) loosening or hex knock.

4. Install chamfered spacer (A) (chamfer toward roll), hardened washers (B), and bearing (with "UP" stamp toward top of baler) on shaft, snug four flange nuts (C), and pull roll firmly to left-hand side of baler.

5. Center roll side-to-side:

• Center roll side-to-side.
• Measure from outer rubber strip to sidesheet on both sides to check roll centering.
• The difference between the two dimensions must be 6 mm (0.24 in.) or less.
• If needed, add or remove washers between roll and left-hand bearing to center roll.

6. Tighten flange nuts (C) to specifications.

Specification

A-Chamfered Spacer
B-Hardened Washers
C-Flange Nuts (4 used)
D-Center Bolt

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NOTE: Permissible to grind drive roll wiper pins (C) to 3 mm (0.12 in.) height.

7. Wiper pins (C) on lower drive roll (A) and starter roll bars (B) must clear sidesheet holes according to specifications.

If roll wiper pin (C) contacts sidesheet hole, reposition bearing housing or bearing plate or grind wiper pin (C).

Specification

A-Lower Drive Roll
B-Starter Roll
C-Wiper Pin

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NOTE: Install sprocket with larger hub pointing toward roll.

8. Install sprocket and hardened washers (D).

9. Tap right-hand side of roll to remove all endplay to left-hand side of baler.

10. Hold lower roll shaft to left-hand side and push lower drive roll sprocket and washers inward.

IMPORTANT: To avoid hex knock and cap screw (C) from loosening, keep hardened washers (A) centered about shaft. Make sure hardened washers (A) are not clamped between end of shaft and thick washer (B).

11. Install hardened washers (D) between sprocket and end of shaft so washers extend 3-6 mm (0.12-0.24 in.) past end of shaft.

12. Install M12 x 80 cap screw (C) with 13 x 70 x 12 mm (0.50 x 2.75 x 0.47 in.) thick washer (B). Tighten cap screw (C) to specification.

Specification

13. Ensure that washers do not rotate by hand. Joint must be clamped to eliminate hex knock.

A-Hardened Washers
B- Thick Washer, 13 x 70 x 12 mm (0.50 x 2.75 x 0.47 in.)
C-Cap Screw, M12 x 80
D-Hardened Washers

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15. Add or remove regular washers between bearing and sprocket on starter roll shaft, as needed, to align starter roll sprocket with lower drive roll sprocket.

A-Drive Sprocket
B-Outer Sprocket
C-Straight Edge

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17. Hold bearing (C) tight against washers. Edge of mounting strap (D) must align with the step of cast housing (E) in three locations.

A-Spacer
B-Thin Washer
C-Bearing
D-Mounting Strap
E-Cast Housing
F-Cap Screw, M8 (3 used)

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Specification

A-Cast Step
B-Mounting Strap Edge
C-Dimension, 1.5-4.5 mm (0.059-0.177 in.)

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NOTE: Rolls must rotate freely. Check roll clearance through hole in sidesheet.

If roll is equipped with wiper pins, it is permissible to grind drive roll wiper pins to 3 mm (0.12 in.) minimum height.

20. Spin upper drive roll to verify clearance with sidesheet hole according to specifications. Add or remove shims (F) or move right-hand bearing plate, or grind drive roll wiper pins, if equipped.

Specification

IMPORTANT: To avoid center cap screw from loosening or hex knock, keep washers (C) centered on shaft.

21. Install washers (C) between bearing and end of hex shaft, so washers are flush with end of shaft, and add one more washer. Add large thick ID washer (D).

22. Install M12 x 80 cap screw (E) and 13 x 70 x 12 mm (0.50 x 2.75 x 0.47 in.) end washer (G).

A-Flanged Cap Screws (3 used)
B-Flanged Nut (3 used)
C-Washers
D-Large (Thick Washer)
E-Cap Screw, M12 x 80
F-Shims
G-Washer, 13 x 70 x 12 mm (0.50 x 2.75 x 0.47 in.)

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IMPORTANT: To prevent bearing failure, always tighten M12 cap screw (C) before tightening flange mounting M8 cap screws (A) and (B).

NOTE: Ensure washers do not rotate by hand. Joint must be clamped to eliminate hex knock.

23. Tighten M12 x 80 cap screw (C) to specification.

Specification

24. Tighten middle flange mounting cap screw (B) first. Tighten remaining two flange mounting cap screws (A). Tighten all three cap screws to specification.

Specification

25. Check position of mounting edge to cast step in three locations. If mounting edge does not align in the cast sets, repeat Steps 16-24.

A-Cap Screw, M8 (2 used)
B-Cap Screw, M8
C-Cap Screw, M12 x 80

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