OPERATION
OPERATION
Blade Bolts Working Loose | Bolts not tightened. |
| Bolt hole elongated or oversized. |
| Locknut worn out. |
Gearbox Noisy | Low Lubricant. |
| Rough gears. |
| Worn Bearing. |
Gearbox Leaking | Damaged Oil Seal. |
| Bent Shaft. |
| Oil Seal Race rough. |
| Oil Seal installed wrong. |
| Oil Seal not sealing in the housing. |
| Oil level too high. |
| Gasket damaged. |
| Bolts loose. |
| Sand hole in casting. |
Streaking Conditions | Conditions too wet for cutting. |
| Blades unable to cut that part of |
| grass pressed down by path of |
| tractor tires. |
| Dull blades. |
| Height of cutter lower at rear or |
| front. |
Gearbox Overheating | Low on lubricant. |
| Improper type lubricant. |
| Excessive trash |
| gearbox. |
| Bearing or gears set up improperly. |
Shear Pin Shears | Tractor PTO not being run at |
Excessively | 540 RPM. |
| Heavy Material. |
| Not using proper pin. |
| PTO engaged at high engine RPM |
| Cutting in rocky conditions |
| Blade carrier RPM too high. |
| Blades not properly heat treated. |
Tighten Bolts to 300 ft./lbs.
Replace Blade Carrier.
Replace Locknut.
Check lubricant level.
Run in or change Gears.
Replace Bearing.
Replace Seal.
Replace Oil Seal and Shaft. Replace Shaft or repair Race. Replace Seal.
Replace Seal or use a sealant on O.D. of Seal.
Drain oil to proper level. Replace Gasket. Tighten Bolts.
Replace castings or gearbox.
Allow grass to dry before cutting. Slow ground speed of tractor but keep engine running at full PTO wpm. Lowering the cutting height may help. Sharpen or replace blades.
See Cutting Height Instructions.
Fill to level plug.
Replace with proper lubricant. Remove trash.
Consult your Dealer.
Run at 540 RPM.
Reduce ground speed. Raise cutting height.
Replace only with recommended shear pin.
Idle engine to engage PTO Increase cutting height. Check gearbox ratios. Consult your Dealer.
EC72 03/08 | Operation Section |
© 2008 Alamo Group Inc.
