Wright Manufacturing Wright Z 31897, Owner'S Manual

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Before starting the engine be ready to stop it if the wheels begin to turn with the brake on. (If this
happens, check that the manual bypass valves on side of each pump are open at least a half-a-turn
counterclockwise.)
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Start the engine according to the engine manufacturer’s recommendation. Let the engine run at low
RPM for several minutes to get the hydraulic fluid circulating through the pumps. It will be
necessary to use a pair of locking pliers to activate the seat OPC plunger switch while standing
beside the unit. Release the Parking Brake cautiously as the wheels may start to move. Now
gradually tighten the manual bypass valves on the front of each pump one at a time and see if the
wheels start to move. If the wheels move when the hand controls are in neutral position, adjust the
pump neutral adjustment Allen screw. This procedure is described in the Operating instructions
portion of this manual. The manual bypass valves on side of each pump should now be firmly
closed. (Do not tighten these bypass valves with a wrench. Only hand tighten). Now try moving
the hand control levers, one at a time, forward and backward. Check to see if the wheels move
forward and backward according to position of the levers. If not, service the hand control system.
If the wheels stop when the hand controls are in the neutral position, the parking brake should now
be applied. Remove locking pliers from OPC, the blade testing will require that you are seated on
the unit for your safety. Failure to comply could result in serious injury.
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Before testing the blade clutch/brake operation, make sure the area is clear and there is nothing
vulnerable to being thrown from under the mower. No one should be near the mower deck or in its
line of discharge at this time or at any time. The discharge chute deflector should be in the down
position. Move the engine throttle to ¾ speed setting. Note: the Blades will not operate in with the
parking brake engaged.
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Be sure that you are sitting on the operator seat 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 short amount of time, service the blade brake system. With the
blades on, now try lifting your weight off the operator seat to test the Operator Presence Control
switch (OPC). The engine should die and the blades should begin to stop after a ½ second delay.
The blades should come to a stop in several seconds. If not, service the OPC system. Try this a
couple of times.
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Disengage the blades, set the parking brake, shut off the engine and remove the mower from the
stand(s).
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Drive the mower around on a level parking lot. Be sure that the mower drives in a straight line when
both hand controls are held to the full speed position. If not, see further in this manual for
information on tracking adjustment.
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As you drive the mower, listen for any unusual noises and test for irregular operation and adjust or
service as necessary. Next, go over the safety information and operating procedures in this
manual with the customer. Instruct the customer in proper operation and observe the customer
during their initial operation on a level parking lot. Make sure the customer is familiar and
comfortable with the basic operation and use of the mower.
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Dealer: Please fill out and follow the instructions on the Product Registration Form and have the
customer fill out their portion of the form. After the Product Registration Form is filled out and
signed by the customer and a representative from your dealership, please send or fax it within 14
days to your Wright Manufacturing Distributor according to the directions on the Form. Give the
customer their copy of the registration form and keep your copy for your records. The remaining
copies of the forms should be mailed to your Wright Manufacturing Distributor. The limited
warranty is not valid unless the mower is registered and all of the above steps are taken.
Remember, the purchaser is both your and our customer and his satisfaction is very important.
Thank you for supporting our products.
The mower is now ready for delivery to your customer