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Blade Bolts Working Loose
Broken Cross or Cups
End Galling of Cross and Cups Speed too high.
Needle Rollers Have Brinelled
Into Cup and Cross
Shaft or Tube Twisted
Tube Broken in Welded Seam
Yoke Broken at Ear Tip
Gearbox Noisy
Slip Clutch Slipping
Excessively
Oil Blowing out Vent Plug
A60B/A72B 02/07
©2007 Alamo Group Inc.
OPERATION
Bolts not tightened.
Bolt hole elongated or oversized.
Locknut worn out.
Load too high for joint.
Ears have deformed.
Load too high for joint.
Over-loaded.
Over-loaded.
Over-loaded.
Improper backlash.
Rough gears.
Worn Bearing.
Excessive load.
Springs weak.
Improper adjustment.
Too much power for Slip Clutch.
Friction Facings worn.
Oil on Facings.
Friction Facings glazed.
Flat bottomed Vent Plug or
shallow cavity Plug.
Oil level too high.
Operation Section 4-41
Tighten Bolts to 300 ft./lbs.
Replace Blade Carrier.
Replace Locknut.
Use protective device with joint.
Check joint angles and phasing.
Slow down ground speed or raise
Mower.
Reduce speed to 540 RPM.
Install thrust washer.
Check for small joint angles.
Use Slip Clutch.
Check joint angles and phasing.
Replace part and then slow down
ground speed or raise Mower.
Use protective device.
(See Clutch Maintenance).
Replace part.
(See Clutch Maintenance).
Replace part.
(See Clutch Maintenance).
Refer to Maintenance Section.
Run in or change Gears.
Replace Bearing.
Reduce ground speed and/or raise
Mower.
Replace Springs.
Re-adjust Slip Clutch.
Reduce ground speed and material
intake.
Replace Facings.
Replace Facings.
Clean with emery cloth.
Replace with proper Vent Plug,
Cavity in Oil Plug should be
approximately 5/8"
Lower oil level to Plug.
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