Manual

WARNING

5.9 How to Perform the Tracking Adjustment

First ensure that the tire pressure is equal on both rear drive tires. (18-22 psi) Drive the mower on a level

parking lot with the engine at full throttle. Check that the mower drives in a straight line when both hand

controls are held to the full speed position. If not, park the mower and stop the engine. The adjustment is

made by loosening the jam-nuts on the control rods (this may need to be done to one or both control rods)

and adjusting the control rods. Once the jam-nuts are loosened at the top and bottom of the control rod

proceed to turning the control rod clockwise or counter-clockwise. Turning the control rod clockwise will

shorten the control rod and slow the forward movement of the mower on that side. Turning the control rod

counter-clockwise will lengthen the control rod and increase the speed of the forward movement of the

mower on that side.

In the “faster” Speed/Sensitivity setting (this is the factory setting) neither rod should be lengthened so much

that at full speed it pulls the pump control lever (on the sides of the pumps) against the internal pump stop.

Therefore, to reach the maximum capable speed, the rods should be lengthened one turn at a time until you

can feel, in the hand control, that the internal pump stop has been contacted. Then shorten the rod one turn

(damage to the hydro pump will occur if the controls are adjusted in a way that put direct pressure on the

internal pump stop). You will feel the slight resistance. There is no need to start the engine while checking

this incrementally. Remember, this procedure does not apply if the Speed/ Sensitivity Adjustment is in the

slower setting. Otherwise you will wind the swivels way up the rods and the mower will go faster but will lose

most or all of its reverse capability and then the gap between the handlebar and the control levers becomes

excessive when at the neutral position.

If the rod is made longer it will increase the forward speed capability for that side of the mower and if the rod

is made shorter it will slow down that side of the mower. So, if the mower is tracking to the left, either the left

side needs to go faster (by lengthening the left-side rod) or the right side needs to go slower (by shortening

the right-side rod). If the mower is tracking to the right, either the right side needs to go faster (by lengthening

the right-side rod) or the left side needs to go slower (by shortening the left-side rod). It is important that

neither rod should be lengthened too far, as mentioned above.

The only reference point to limit the adjustment from becoming extremely off is the relative position of the

pump stop and the handlebar in the faster Speed/Sensitivity setting. Therefore, if everything is way off either

because you are installing new parts (or other reasons) you should only use the faster Speed/ Sensitivity

setting to get the tracking accurate and then change to the slower speed range and adjust the tracking only

one or two turns on either side.

After getting the mower to track straight, readjust the neutral adjustment on the pump by using a ¼” allen

wrench at the Return-to-Neutral (RTN) mechanism, if necessary. It is normal to make these adjustments from

time to time.

5.10 How to Test/Use the Blade Clutch/Brake Switch

Before testing the blade clutch/brake operation, make sure the area is clear and there is nothing vulnerable

to thrown objects from under the mower. No one should be near the mower deck or in its line of discharge.

The discharge chute deflector should be in the down position. The parking brake should now be applied.

Move the engine throttle to ¾ speed setting. When mowing, the engine speed should always be at its

highest setting. The engine governor will regulate the engine according to the different mowing conditions at

that setting. Place both feet firmly on the foot platform and turn on the blade clutch switch. Run blades for a

minute or so. Try engaging and disengaging the blades a few times about 10 seconds apart. If the blades

do not start and stop in a few seconds each time, service the blade brake system or contact your local Wright

dealer. Under mowing load, the clutch’s life will be the greatest if engaged and disengaged at the ¾ throttle

level.