Wright Manufacturing Mower owner manual Service and Adjustments, Tire Maintenance and Pressure

TIME YOU REMOVE THEM. YOU MUST USE NEW "HAIR" PINS IF THE OLD ONES ARE WORN OR BENT. After getting the mower to track straight readjust the neutral adjustment knobs at the rear of the mower, if necessary. It is normal to need to make these adjustments from time to time.

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 the highest RPM speed set- ting. (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.) Stand 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. Under mowing load, the clutch's longevity will be the greatest at the highest RPM setting.

How to Test the Operator Presence Control (OPC) Switch

With the parking brakes applied and the blades ON, try stepping off the foot platform to test the Operator Presence Control switch (OPC). The engine should kill and the blades should stop within a few seconds. If not, service the OPC system.

WARNING

Service and Adjustments

Tire Maintenance and Pressure

Excessively worn tire tread is dangerous on all hills. Replace drive tires with less than

3/32" of any tread groove left. Use tires with the tread pattern recommended by Wright Mfg., Inc. only. Keep the tire pressure in the drive tires

between 8 and 12 psi. Higher pressures will cause the tires to have less traction which will force you to go slower and with less safety and give you a harder ride. Keep the tire pressure in the front caster tires between 35 and 46 psi. Higher pressures will help keep the caster tires on their rims when impacted from the side but give a harder ride. They do not have any tread but should be replaced when excessively worn.

Hydraulic Motor Support Adjustment

The various holes in the tractor frame and the hydraulic motor supports may be used to make a fine forward/rearward adjustment to the balance of the Stander. This adjustment should always be made in combination with the coarse height-of-cut adjustment and anti-tip roller ad- justment as described below. When the motor supports are set in the forward position, the Stander will be balanced lighter in the front than when set in the rearward position, giving more traction to the drive tires. Heavy operators (over 250 lbs. or so) may find that the rearward position helps keep the front of the mower down.

Blade Adjustments and Height-of-Cut

Before Adjusting the Height-of-Cut be sure of proper air pressure in all four tires and check for even tire wear. The height-of-cut can be ad- justed the following ways:

Coarse Adjustment: For the coarse adjust- ment the rear wheels, the front casters and the anti-tip rollers should be adjusted at the same time. Adjust the rear wheel motor supports equally in one of the three settings up or down 0.75" each in a 1.5" total range.

a. Use the highest holes in tractor frame

for cutting heights of 1.75" - 3.0". b. Use the middle holes in tractor frame

for cutting heights of 2.5" - 3.75", factory setting.

c. Use the lowest holes in tractor frame for cutting heights of 3.25" - 4.5".

The anti-tip rollers at the back end of the mower must be adjusted to correspond to the above holes used for the coarse wheel motor support adjustment:

There are four holes in the anti-tip roller support brackets. Use the rearward holes

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