Blade Servicing
Keep blades sharp for a good mowing job. Sharpen both ends of the blade the same amount to maintain balance. Do not sharpen blade to a razor edge, but leave a 1/16" blunt edge. Do not sharpen back side of blade. When replacing blades, do not substitute any bolt for the special Nylok blade bolt. The Nylok bolt is
NOTICE
■On mowers with white frames, the blade bolts have left hand threads.
59 mowers use cup washers under blades. These washers will burn and lose their clamping force if excess slippage occurs. Inspect and replace as neces- sary.
HOW TO SOLVE BELT PROBLEMS
Assemble as shown on mower decal. If not installed correctly, more twist will result than is allowable.
Belt whip is caused by belt misalignment unless mower is driven by a
Proper position: Adjust mower forward and back to such a position that the rear
It is assumed that the mower is adjusted to run approx- imately level. If the front of the mower is down, the idlers will have to be raised. If the back of the mower is down, the idlers will have to be down further. Belts must be in proper alignment with sheave grooves as shown in Figure 4.
PTO pulleys must be moved in or out to cause the belt to be in alignment with the idlers.
Belt Tension: Run belts very tight. Present belt designs are much stronger than we are accustomed to and will stand more tension. Slipping will heat and ruin a belt but tension is not harmful. You can minimize the amount of change in belt length as mower is raised and lowered by keeping the rear idlers adjusted to a low position.
Figure 3. Use of Straight Edge (Side View)
How to Align a Twisted Belt
Right: Inside edge of belt are approximately lined up with the sheave.
Figure 4.
Wrong: Outer edge of belt appears to be in line.
Figure 5.
29932 (Rev. 8/10/2007) | Operation 9 |
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