Checking Pickup Slip Clutch Torque (MEGATOOTH™ or MegaWide)

NOTE: Excessive pickup slip clutch slipping can be caused by improper pickup height, gauge wheel, or float spring adjustments.

A new clutch should slip within specifications when slipped at the gear case output hex shaft. As the clutch wears, it will gradually transmit less power due to slipping, and feeding performance may be unsatisfactory.

Specification

New Clutch -Slip 260-340 N·m (190-250 lb-ft)

If a used clutch slips below the following specifications, replace outer housing and ratchets with springs or replace complete slip clutch.

Specification

Used Clutch -Slip (Maximum) 203 N·m (150 lb-ft)

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causym CAUTION: Make sure gate is locked. If gate is raised and not locked while performing this procedure, the gate could close suddenly causing injury or death.

IMPORTANT: If slip clutch does not slip at 340 N·m (250 lb-ft), clutch is not working correctly. Replace slip clutch to avoid possible damage to pickup.

To check slip clutch torque:

1. Raise gate fully and lock gate.

2. To reduce torque reading variations, tighten lower drive roll chain. (See ADJUSTING LOWER DRIVE ROLL CHAIN in this section.)

3. Raise pickup.

4. Disconnect PTO from tractor.

TS698

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5. MEGATOOTH™ Pickup; Remove right-hand shields (A and B).

MegaWide Pickup; Remove right-hand shield (A).


A-Right-Hand Shield
B-Shield

E41041

MEGATOOTH™ Pickup

E48480

MegaWide Pickup

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6. MEGATOOTH Pickup; Remove quick-lock pin (A) and washers from reel shaft.

MegaWide Pickup; Remove cap screw (A) and washers from auger/rotor shaft assembly.

causym CAUTION: Use at least a 1 in. drive breaker bar or weld a heavy 1-1/4 in. socket to a 10 x 76 x 914 mm bar to hold shaft in place. Smaller breaker bar or wrench will break or bend.

7. Install a tool on reel or auger/rotor shaft to prevent the shaft from rotating counterclockwise.

8. To avoid chain from jumping the sprocket while trying to slip the clutch:

  • Tighten the chain.
  • Make sure idler arm pivots freely and is spring loaded.
  • Add alignment marks (or tape) on the clutch sprocket and on the hex shaft going through the clutch. These "marks" will determine whether the clutch slipped or the chain jumped during each slip test.


A-Quick-Lock/Cap Screw

E41042

MEGATOOTH Pickup-Reel Shaft

E48481

MegaWide Pickup-Auger/Rotor Shaft

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NOTE: Rotate output shaft and slip clutch a minimum of four ratchets before recording measurements.

9. To identify clutch specifications:

  • Set click-type torque wrench to 260 N·m (190 lb-ft)
  • Install torque wrench (A), with extension, on hex output shaft at left-hand side of baler.
  • Turn wrench clockwise. Wrench should click before clutch slips. Repeat procedure three times.
  • Set torque wrench to 340 N·m (250 lb-ft)
  • Turn wrench clockwise. Clutch should slip before wrench clicks. Repeat procedure three times.

10. If clutch slips below the following specifications, replace outer housing and ratchets with springs or replace complete clutch.

Specification

Pickup Clutch -Slip (Maximum) 203 N·m (150 lb-ft)

causym CAUTION: Never use any type of tool or wrench on shaft(s) while tractor engine is operating. Always remove tool(s) from shaft as soon as procedure is finished.

11. Remove tools from shafts.

NOTE: MEGATOOTH™ Pickup; Install washer with hex bore toward quick-lock pin.

12. Install washers and quick-lock pin or cap screw.

13. Install right-hand shields.

14. Unlock and close gate.

E41044


A-Torque Wrench

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