Alamo A72 - Manual (Page 127)

OPERATION
A60/A72 01/08 Operation Section 4-41
©2008 Alamo Group Inc.
OPERA
T
ION
Blade Bolts Working Loose Bolts not tightened. Tighten Bolts to 300 ft./lbs.
Bolt hole elongated or oversized. Replace Blade Carrier.
Locknut worn out. Replace Locknut.
Broken Cross or Cups Load too high for joint. Use protective device with joint.
Check joint angles and phasing.
Slow down ground speed or raise
Mower.
End Galling of Cross and Cups Speed too high. Reduce speed to 540 RPM.
Ears have deformed. Install thrust washer.
Needle Rollers Have Brinelled Load too high for joint. Check for small joint angles.
Into Cup and Cross Use Slip Clutch.
Check joint angles and phasing.
Shaft or Tube Twisted Over-loaded. Replace part and then slow down
ground speed or raise Mower.
Use protective device.
(See Clutch Maintenance).
Tube Broken in Welded Seam Over-loaded. Replace part.
(See Clutch Maintenance).
Yoke Broken at Ear Tip Over-loaded. Replace part.
(See Clutch Maintenance).
Gearbox Noisy Improper backlash. Refer to Maintenance Section.
Rough gears. Run in or change Gears.
Worn Bearing. Replace Bearing.
Slip Clutch Slipping Excessive load. Reduce ground speed and/or raise
Excessively Mower.
Springs weak. Replace Springs.
Improper adjustment. Re-adjust Slip Clutch.
Too much power for Slip Clutch. Reduce ground speed and material
intake.
Friction Facings worn. Replace Facings.
Oil on Facings. Replace Facings.
Friction Facings glazed. Clean with emery cloth.
Oil Blowing out Vent Plug Flat bottomed Vent Plug or Replace with proper Vent Plug,
shallow cavity Plug. Cavity in Oil Plug should be
approximately 5/8”
Oil level too high. Lower oil level to Plug.