HYDRAULIC SYSTEM
•Ensure that the pump pulley aligns with the crankshaft pulley and the pulley for the other pump.
•Ensure, on both sides, that the link between the motion control lever and the hydraulic pump is correctly adjusted.
•Vent the hydraulic system before operation.
Linkage Adjustment
WARNING!
Ensure the mower is securely supported on blocks or jack stands.
Keep hands, feet and clothing away from rotating tires.
This adjustment must be made with the rear wheels rotating. Raise the rear of the mower and support it securely on blocks or jack stands so that the wheels are free to rotate.
1.Remove the seat rod so that the seat can swing down onto the frame.
2.Tilt the seat forward and, to engage the seat safety switch, place a length of 2" x 4" between the foot plate and the center of the seat.
3.Loosen the jam nuts (20) directly behind each ball joint (10, 32) on the pump control links. These links can now be rotated using the other nuts (9). The jam nuts have a
4.Start the engine (the park brake must be engaged and the motion control levers in the neutral slots). Run the engine at approximately half throttle.
5.Release the park brake so that the rear wheels can rotate.
6.Working on one side at a time, put the motion control lever into the neutral position in the drive channel. Adjust the motion control linkage by turning the two nuts (9) in the proper direction. Turn these nuts far enough to just stop the wheel rotating.
7.Move the motion control lever forward, then into the neutral position and then into the neutral slot. The wheel must stop completely at this point.
8.Now move the motion control lever into the reverse position and release it. The lever should return to neutral on its own. If not, the reverse spring detent must be adjusted, check below.
9.Tighten the jam nuts directly behind each ball joint (10, 32).
10.Adjust the linkage on the other side in the same way.
11.Reattach the seat rod to the seat.
Reverse Spring Detent Adjustment
1.Stop the engine and remove the key.
2.Pull the motion control lever back to the reverse position and then release it. The lever should spring back and stop centrally in line with the neutral slot (i.e. it should be possible to move the lever directly back to the locked neutral position without touching the sides of the slot).
3.If adjustment is required, move the seat to the back of its slide rails before tilting it forward and removing the rod from the seat frame. Swing the seat down onto the frame.
4.Sufficient to allow the bolt to slide in its slot, loosen the nut (27) fastening the spring (17) to its upper mount.
5.Swing the motion control lever out into the neutral slot. While it is there, pull it against the back face of the neutral slot.
