OMFH309531: 468, 468 Silage Special, and 568 Round Balers, Block File: PP98408_0000272_19

Checking and Adjusting Net Wrap V-Belt Idler Tension

causym CAUTION: Protect bystander. To prevent injury, be sure bystanders stand clear before operating net wrap unit or baler.

1. Connect monitor-controller power plug to power source.

2. Turn tractor key to ON position. Do not start tractor engine.

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3. With channel 18 on monitor, cycle actuator using extend or retract key, so actuator moves approximately half way up or down, to loosen belt.

causym CAUTION: To avoid personal injury from unexpected knife movement, disconnect net wrap actuator wiring connector or power plug when making adjustment or working in area.

4. Temporally move V-belt from top of idler pulley to underside of idler pulley.

5. Reconnect power source.

6. With monitor-controller in NET mode, press and hold COUNTER key while turning monitor-controller ON.

7. Continue to hold COUNTER key and press PLUS key until "CH 018" appears in digital display.

8. Press EXTEND key to extend actuator fully (angle to highest position).

A-Belt
B-Idler Pulley

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9. Check position of right-hand net wrap cutoff arm (A). Arm must contact tab (B) FIRMLY. If correct, proceed to Step 10.

If position is not correct, adjust base end of mounting bracket as follows to obtain firm contact:

a. Disconnect monitor-controller power plug from power source.

A-Angle
B-Tab

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b. Loosen two screws (A) on top of bracket, two round-head bolts (B) and nuts on bottom end of bracket.

c. Connect monitor-controller power plug to power source. Repeat Steps 5-7.

d. Retract actuator fully (to shortest position), and tighten bracket mounting bolts.

e. Extend actuator and recheck for firm contact.

10. Ensure monitor is on channel 18. Use extend/retract key and return actuator to approximately half way up or down.

11. Disconnect actuator from power source.

12. Move V-belt to top of idler pulley.

13. Reconnect to power source.

A-Screws
B-Round-Head Bolts

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NOTE: Engage brake before extending actuator.

14. Right-Hand Side ONLY; Extend actuator. Check that clearance (A) from angle (C) to tab (B) on sidesheet is within specifications.

Specification

Angle-to-Tab On Sidesheet -Clearance

6-15 mm

(1/4-9/16 in.)

A-Clearance
B-Tab
C-Angle

Right-Hand Side

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15. If clearance is not within specifications, adjust idler (A) in idler arm slot until clearance is within specified range.

16. Retract actuator and re-extend to check for correct clearance. If clearance is still not correct, readjust idler (A) and recheck.

17. Close net wrap cover and shut actuator door.

IMPORTANT: After adjustment, turn monitor-controller ON. Press WRAP key to return net wrap cut-off arm to home position. Turn monitor-controller off to cancel STOP alarm. If this procedure is not followed, net will be fed continuously during the next bale.

18. Connect monitor-controller power plug to power source. Turn tractor key to ON position. Do not start tractor engine. Turn monitor-controller ON.

NOTE: STOP alarm will sound while cycling actuator.

19. Cycle actuator several times using WRAP key.

20. Press WRAP key and return net knife to home (downward) position. (See CHECKING AND ADJUSTING FEED ROLL BRAKE in this section.)

21. Turn monitor-controller to OFF.

A-Idler

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