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Toro RT600 Operator's Manual
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6. Measure the distance between the chain and the bottomof the lower wear strip (Figure 31).• If the gap between the lower wear strip and thechain is 51 to 76 mm (2 to 3 inch), the chain tensionis correct (Figure 31).• If the gap is smaller that 51 mm (2 inch), the chaintension too tight; refer to Decreasing the ChainTension (page 19).• If the gap is larger that 76 mm (3 inch), the chaintension too loose; refer to Increasing the ChainTension (page 20).Note: The chain tension has a significant affect onthe productivity of the machine; set the chain tensionas loose as possible.Decreasing the Chain TensionWARNINGIf you remove the grease fitting from the boombefore you release the pressure in the system,personal injury may result.Before removing the grease fitting, loosen (but donot remove) the plug on the opposite side of theboom.1. At the left side of the boom, loosen the 4 bolts thatsecure the lock bars and the side plates (Figure 32).Figure 321. Bolt 3. Side plate2. Lock bars2. Locate the bleed plug (hex-socket) at the side plate onthe right side of the boom (Figure 33).Figure 331. Bleed plug3. Slowly rotate the bleed plug counterclockwise 2 or 3revolutions, and allow the grease to flow from aroundthe plug (Figure 33).Note: The chain tension will decrease as the gapbetween the chain and the wear strip increases.4. When you achieve a 51 to 76 mm (2 to 3 inch) gapbetween the chain and the wear strip, tighten the plug(Figure 32 and Figure 33).5. Torque the 4 bolts (Figure 32) that secure the lock barsand the side plates to 190 to 215 N-m (140 to 159 ft-lb).6. Perform the steps in Checking the Chain Tension (page18).19 |
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