Adjusting Roll Spacing (Roll Conditioner)

E53576-UN-04AUG04

Urethane Roll Machine Shown

A - Castellated Nut

B - Washers

C - Flange Nut

D - Flange Nut

Minimum

Roll spacing is set from factory and is maintained by a pinned castellated nut (A).

Roll spacing may be increased to reduce conditioning intensity.

• To increase roll spacing, turn nut (D) clockwise same number of turns both sides. Jam nut (C) to (D).
• To reduce roll spacing, turn nut (D) counter clockwise same number of turns on both sides. Jam nut (C) to nut (D).
• With jam nut (C), nut (D) and clamp washer (B) against castled nut (A) factory setting (minimum roll spacing) is obtained.
• See Settings for Various Crop Conditions under Operating the Mower-Conditioner section of this manual.

To compensate for normal wear or if rolls are replaced, set minimum roll spacing by the following procedure.

1. CAUTION: To avoid bodily injury while performing this adjustment:

   • Keep all shields in place.
   • Keep hands and clothing away from moving parts.
   • Carefully follow procedure.
   
   

   IMPORTANT: Rolls should never be adjusted to allow contact during use or serious damage to machine will occur.

   
   E53577-UN-04AUG04

   Urethane Roll Machine Shown

   A - Castellated Nut

   B - Washer

   C - Flange Nut

   D - Flange Nut

   E - Roll Pin

   Remove roll pin (E) from both sides.

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2. Loosen castellated nut (B) and flange nuts (C and D) on both sides.

3. Engage platform drive at lowest engine speed.

4. Turn flange nut (D) counterclockwise in one quarter turn increments until roll contact causes vibration and rumbling noise.

5. Turn flange nut (D) clockwise in one quarter turn increments until vibration and rumbling noise has stopped.

6. Once vibration and rumbling noise has stopped, turn nut an additional 1/2 turn clockwise.

7. Go to opposite side of platform.

8. Turn flange nut (D) counterclockwise in one quarter turn increments until roll contact causes vibration and rumbling noise.

9. Turn flange nut (D) clockwise in one quarter turn increments until vibration and rumbling noise has stopped.

10. Once vibration and rumbling noise has stopped, turn nut an additional 1/2 turn clockwise. Jam nut (C) against nut (D) by hand.

11. Go to opposite side of platform.

12. Turn flange nut (D) counterclockwise in one quarter turn increments until roll contact causes vibration and rumble noise.

13. 
    E53577-UN-04AUG04

    Urethane Roll Machine Shown

    A - Castellated Nut

    B - Washer

    C - Flange Nut

    D - Flange Nut

    E - Roll Pin

    Turn flange nut (D) clockwise in one quarter turn increments until vibration and rumbling noise has stopped.

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14. Once vibration and rumbling noise has stopped, turn nut an additional 1/2 turn clockwise. Jam nut (C) against nut (D) by hand.

15. Turn off engine and remove key.

16. With flange nuts (flange to flange) and jammed together by hand, hold nut (D) and tighten nut (C) an additional 1/6-1/4 turn clockwise on both sides.

17. Install castellated nut (A) against nut (C) and washer between nuts (A and C) so at least 1/2 roll pin engages castellated nut slot. Install roll pin (E). Repeat on opposite side.

18. If hole in rod and castellated nut slot do not align, turn castled nut and flange nuts clockwise to next castellated slot. Loosen flange nuts, tighten nut (C) against castellated nut/washers, turn nut (D) to just contact nut (C), hold nut (C) and turn (D) 1/6-1/4 turn to jam nuts.