ADJUSTMENTS
SERVICING
In the event of system failure, there is a manual position "MAN" switch option which allows for a temporary over-ride of the overload warning system. It is recommended that this be only used as a back-up & only until necessary repairs can be arranged. A temporary by-pass service connector has been included in the original tractor kit & should be installed while the system is being serviced. This service connector will provide a shunt path & will shut-off hte cutting system immediately upon receiving a signal from the collector overload switch indicating a full grass collector condition.
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DANGER
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Do not handle the blades with bare hands. Wear gloves or wrap the blades with newspaper or other material while removing or installing the blades. 3. Reinstall the mower deck.
SHEAR PINS (FIG. 30)
BLADE REPLACEMENT ( FIG. 29)
Fig. 30
BLADE SHARPENING
The cutting blades should be sharp and balanced to run smoothly. Blades should have correct amount of lift for proper cutting and discharge of clippings. The lift is created by the upturned bent tip edges of the blade ends. As the cutting edges of the blades wear, the bent tip edges also wear decreasing the blade lift. Decreased cutting and collecting ability results. IMPORTANT It is recommended blades be replaced when the upturned ends show signs of wear. IMPORTANT As soon as the blades strike any solid object the shear bolts will break. Immediately stop the engine! Check the blades! Replace the broken shear bolts only with factory originals. For installation refer to fig. 30. Check to make sure that all blade mounting bolts are tightened. To remove blades: 1. Remove the mower deck. 2. When replacing the blades, be sure all parts are reassembled in proper order and securely tightened, or severe vibrations will occur (See fig. 30). Bent tip edges of blades must be toward top of the mower deck, or blades will not cut. IMPORTANT Great care should be taken to keep the blades balanced. An unbalanced blade will cause excessive vibrations and eventual damage to the engine or the mower.
1. The blade can be sharpened with a file or on a grinding wheel. Do not attempt to sharpen while on mower. 2. Place the center hole of the blade over the end of a screwdriver, placed horizontally. If the blade is balanced, it should remain in a horizontal position. If either end of the blade moves downward, sharpen the heavy end until the blade is balanced.
DRIVE BELTS ADJUSTMENT (FIG. 31, 32 AND 33)
IMPORTANT The life time of the belts and their proper operation depends on their right adjustment. After a few hours of operation, they must be inspected and may need adjustment. The three belts are located beneath the main frame. One belt drives the transaxle. The other one transmits the power from the clutch to the mower deck. The third one drives and synchronizes the two blades together.
