OMFH331594

Remove drive chain (B).
Carefully remove cap screw (A) and washers outside sprocket or sheave taking note of quantity and position of washers.
Remove sprocket and slip clutch or sheave.
Remove remaining washers, hollow sleeve, and washers next to the bearing, again noting the quantity and position of all the parts.
Remove cap screws (C) from the bearing and mounting flange. Note position and quantity of any shims between the bearing housing flange and the mounting bracket.
Remove the old bearing.
Install the new bearing and associated parts in the reverse order of removal.
E84139-UN-22AUG17

Bearing Assembly (Right-Hand Side)

A - Cap Screw, M8 (2 used)

B - Cap Screw, M10

C - Bearing

D - Washer

E - Thin Washer (2 used, as required)

F - Bearing Housing

G - Mounting Bracket

H - Distance

Check the position of the bearing assembly on the right-hand end of the drive roll.
1. Hold the bearing (C) tight against the washers.
2. Check the distance (H) between the outer edge of the step in the bearing housing (F) and the edge of the mounting bracket (G) in all three locations. Verify that the dimension is within specification.
  
  Distance (H) Distance 1.5—4.5 mm (0.059—0.177 in)

If the distance (H) is not within specification:
1. Disassemble and remove the bearing assembly. Make note of the location of all washers.
2. Add or remove washers (E) behind the bearing, as necessary, to obtain the correct distance in all three locations.
3. Reinstall the bearing in the reverse order of removal. Make sure that washer (D) is installed next to the bearing.
4. Recheck the mounting distance.
Install previously removed cap screws (A and B). Tighten the cap screws only enough to get a light load between the bearing housing flanges and the mounting bracket. If necessary, lightly tap on the bearing housing to rotate the housing slightly and align the flanges at all three mounting locations. Do not fully tighten the cap screws at this time.
E84129-UN-16AUG17

A - Cap Screw, M8 (2 used)

B - Cap Screw, M10

C - Shim (as needed)

Check to see if the roll is centered in the hole in the side sheet.

If the roll is not centered:
1. Loosen cap screws (A and B).
2. Insert shims (C) between the bearing mounting bracket and the bearing housing flanges as necessary.
3. Snug up the cap screws but do not fully tighten at this time.
Rolls must rotate freely. Check roll clearance through the hole in the side sheet.
If the roll is equipped with wiper pins, it is permissible to grind the wiper pins to 3 mm (0.12 in) minimum height.

Spin the drive roll to verify clearance with the side sheet hole according to specifications. Add or remove shims (C) or move right-hand bearing plate, or grind the drive roll wiper pins (if equipped).

Roller Clearance Radial Clearance 1 mm (0.04 in)
To keep the center cap screw from loosening and prevent hex knock, keep washers or spacer (A) centered on shaft.

E67555-UN-27AUG12

MegaWide™ Plus Pickup Shown

A - Washers (Regular Pickup)

A - Spacer (MegaWide™ Plus Pickup)

B - Cap Screw, M12 x 80

C - Washer

Install washers, hollow sleeve, washers, and the slip clutch or sheave in the same position and quantity as removed. Then install washers or spacer (A) between the clutch or sheave and washer (C) as specified here:

MegaWide™ Plus pickup: Install spacer (A) against the face of the clutch. The outside face of the spacer (A) must extend approximately 7 mm (0.28 in) beyond the end of the hex shaft. If it does not extend far enough, add thin washers between the spacer and the clutch to obtain the required dimension.

Be sure that there is no clearance between components.

Install cap screw (B) and washer (C) and tighten securely to clamp components on shaft.
E67524-UN-24AUG12

Regular Pickup Shown

A - Washers

B - Washer, 6 mm (0.25 in)

C - Cap Screw, M12 x 80

D - End Washer

E - Sheave, Hub

Regular pickup: Install 1.5 mm (0.060 in) washers (A) against the outside of sheave (E) until flush with end of shaft, then add one 6 mm (0.25 in) washer (B).

To keep the center cap screw from loosening and prevent hex knock, keep washers (A and B) centered on shaft.

Install cap screw (C) and end washer (D).
E67556-UN-27AUG12

MegaWide™ Plus Pickup Shown

E67467-UN-27AUG12

Regular Pickup Shown

A - Dimension, 218 mm (8.58 in) (MegaWide™ Plus Pickup)

B - Dimension, 190 mm (7.48 in) (Regular Pickup)

Check dimension (A) between the face of the bearing plate and the inside of the slip clutch sprocket (MegaWide™ Plus pickup).

Dimension (A) Distance 218 mm (8.58 in)

Check dimension (B) between face of the bearing plate and the center of the sheave groove (Regular pickup).

Dimension (B) Distance 190 mm (7.48 in)

If the sheave or sprocket spacing cannot be obtained within ± 1.5 mm (0.060 in), add or remove washers inside the slip clutch or sheave to obtain the dimension.
If washers are added or removed inside the slip clutch or sheave, repeat the previous steps to clamp components securely in place on the shaft.
To prevent bearing failure, always tighten cap screw (C) before tightening flange mounting cap screws (A and B).

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

E67385-UN-15AUG12

MegaWide™ Plus Pickup Shown

A - Cap Screw, M8

B - Middle Cap Screw, M8

C - Cap Screw, M12 x 80 mm

Tighten cap screw (C) to specification.

M12 Cap Screw Torque 140 N·m (103 lb·ft)

Tighten the middle flange mounting cap screw (B) first, then tighten flange mounting cap screws (A). Tighten all cap screws to specification.

Cap Screw (B) Torque 80 N·m (59 lb·ft)

Cap Screw (A) Torque 40 N·m (30 lb·ft)
Check the distance between the edge of the step on the bearing housing and the mounting bracket in all three locations. If the distance is not within specification at all locations, repeat the previous steps to adjust and recheck.
Reinstall all chains or belts and adjust properly.

MegaWide is a trademark of Deere & Company

DP99999,0000D33-19-20171127