Wright Manufacturing Sentar 26980 User Manual

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Commercial Mower Owner’s Manual

For Sentar Serial #26980 and higher until superseded

WARNING: READ THIS MANUAL BEFORE USING

For your safety and for proper operation and maintenance read carefully and keep readily available for future reference.

Additional replacement owner’s manuals as well as illustrated parts lists are available from your authorized Wright Dealer for a nominal charge. Also check www.wrightmfg.com for the most up to date product literature. Please note the model number and serial number of your Wright product.

For reference please note the following information at the time of purchase:

SERIAL # _________________________

MODEL # _________________________

DATE OF PURCHASE ______________________

WRIGHT MANUFACTURING, INC. - 4600X WEDGEWOOD BLVD - FREDERICK, MD 21703

Foreword

Welcome to the progressive group of mowing professionals who use Wright mowers. We are focused on giving you advanced engineering and quality construction in each mower we build.

This manual explains the features and promotes safer use of the mower. Please read it and follow the instructions carefully so that you can have many years of productive mowing.

For service, remember that your Wright dealer knows your mower best and is interested in your satisfaction. He can provide you with quality maintenance and other assistance that you may need.

Please give this manual to anyone who may use the mower for them to study before they operate it. Give the manual to anyone to whom you may sell the mower in the future. It is important that the next owner receive this information also.

As Wright Manufacturing, Inc. is constantly seeking ways to improve its products, the mower you have may differ slightly from the information and specifications in this manual. Because of our continuous product improvement, Wright reserves the option to make changes at any time without notice.

Wright Manufacturing, Inc.

SAFETY ALERT

This is the safety alert symbol. It is used throughout this manual and on the mower’s safety labels to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. Read these instructions carefully. It is essential that you read the instructions and safety precautions before you attempt to work on or use this unit.

WARNING

This symbol with the “WARNING” indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

This symbol with the word “CAUTION” indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

©1998-2001 Wright Manufacturing, Inc. All rights reserved. This material may not be reproduced or copied, in whole or part, without written permission from Wright Manufacturing, Inc. Grass Gobbler, Gobbler, Leaf Gobbler, Velke, Pro 1, X2, Stander, and Sentar are trademarks of Wright Manufacturing, Inc.

TABLE OF CONTENTS

 

Pre-Delivery Service of Mower by Dealer .........................................................

1

SAFETY INSTRUCTION MANUAL......................................................................

3

INTRODUCTION ....................................................................................................................

3

GENERAL SAFETY INSTRUCTIONS ...................................................................................

3

Owner/User Notice: ..............................................................................................................

3

User Experience and Qualifications: ..................................................................................

3

User Clothing:.......................................................................................................................

4

Inspection of Mower Before Each Use: ..............................................................................

4

Scheduled Mower Maintenance Safety:..............................................................................

4

Work Area Conditions and Inspection:...............................................................................

4

Initial Operating Safety Guidelines: ....................................................................................

4

Replacement Parts: ..............................................................................................................

5

Operation on Slopes: ...........................................................................................................

5

Operation During Zero-Radius Turns: ................................................................................

6

Operation in Reverse: ..........................................................................................................

6

Operation in Forward Direction:..........................................................................................

6

Fuel Safety: ...........................................................................................................................

6

Hydraulic Safety: ..................................................................................................................

7

OPERATING INSTRUCTIONS.............................................................................

8

Inspect Mower Before Each Use: ........................................................................................

8

How to start the mower:.......................................................................................................

8

Unusual noises or irregular operation:...............................................................................

8

How to drive the mower: ......................................................................................................

8

How to Stop and Park the Mower........................................................................................

8

How to Drive the Mower Over a Curb..................................................................................

9

Never drive straight onto or off a curb. ..............................................................................

9

How to Use the Mower on Varying Terrain.........................................................................

9

How to Adjust Neutral ..........................................................................................................

9

How to Change the Speed/Sensitivity Adjustment ..........................................................

10

How to Perform the Tracking Adjustment ........................................................................

10

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

10

How to Test the Operator Presence Control (OPC) Switch.............................................

11

Service and Adjustments...................................................................................................

11

Tire Maintenance and Pressure.........................................................................................................

11

Height-of-Cut....................................................................................................................................

11

Deck Adjustments.............................................................................................................................

11

Belt Tension Adjustment ..................................................................................................................

11

How to Move the Mower if the Engine Won’t Start ........................................................................

11

Bleeding Air from the Hydraulic System .........................................................................................

11

Battery Service..................................................................................................................................

12

Cleaning the Mower..........................................................................................................................

12

Maintenance Interval Chart ..............................................................................

13

Maintenance Record.........................................................................................

14

Pre-Delivery Service of Mower by Dealer

If you are not completely familiar with the Safety Instruction Manual read it now before proceeding with the Pre-Delivery

WARNING Service of the mower. Only your authorized Wright dealer should perform the Pre-Delivery Service of the mower.

The Wright Sentar is shipped completely assembled and has been adjusted and tested at the factory. However, due to jostling during the shipping process and the delivery time lapse the following items need to be repeated again before starting the mower. After you have uncrated the mower, follow these procedures in the order indicated:

Remove spark plug wire from spark plug(s).

Inspect the mower for any damage, unusual conditions or missing parts.

Inspect the mower for all of its decals, especially the warning decals. There should be one blade warning decal on each side of the deck, the “shield missing” under the blade belt covers, and the dash decal.

Check (and fill if necessary) engine oil level according to the engine manufacturer’s recommendation.

Check (and fill if necessary) hydraulic fluid level. The level should be about 3” - 4” below the top of the oil fill. Use synthetic oil: Mobil1 15W-50.

Check rear tire pressure. 18 to 24 psi. is recommended. It should be even on both sides. Use the higher pressures for heavier operators. Set the tire pressure in the front caster tires between 30 and 40 psi. Higher pressures will help keep the caster tires on their rims when impacted from the side but give a stiffer ride. Some Front Casters are equipped with non-pneumatic tires and do not required any air.

Check the battery to see that the cables are tight and connected properly. The battery is 12 volts and is a maintenance-free battery. Only charge the battery if it will not start the mower properly.

Remove the blade belt covers and inspect the belt and idler arm for smooth operation. Also grease the spindles and the idler arm.

Rotate the blade pulleys slightly to see if they rotate freely and all turn together. There will be resistance due to the clutch brake.

Replace the blade belt covers.

Check the cutter deck for proper adjustment. The deck should be approximately ¼” lower in the front than in the rear and the deck should be level side-to-side. If the deck is not adjusted properly, please adjust at this time. See Deck adjustments section of this manual for further instructions.

Lubricate all moving parts (see Maintenance Items section of this manual).

Fill fuel tanks with regular unleaded gasoline. Turn fuel valve under right side of dash towards the gas tank you plan to use.

DO NOT START THE ENGINE AT THIS TIME. FOLLOW THE NEXT PROCEDURE BEFORE STARTING. The hydraulic system MUST be checked for proper operation before allowing wheels to operate on the ground.

Set the rear of the machine on jack stands or blocks to raise rear wheels off the ground two or three inches and check to be sure that the mower will not fall off the supports you devise. (Do not support the mower’s weight on any part of the foot platform.) You must be able to stand on the mower. The stand(s) must be able to secure the mower from rolling off or away during the next procedures. Check under the mower deck for any debris or unusual conditions.

With hand controls in the middle or neutral position, apply the parking brake.

Open the manual bypass valves on top of each pump a half-of-a-turn counterclockwise.

Reattach spark plug wires to spark plugs.

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 top of each pump are open at least a half-of-a-turn counterclockwise.)

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. While seated or standing on the foot platform, release the parking brake. Now gradually close the manual bypass valves on top 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. The manual bypass valves on top of each pump should now be firmly closed. (Do not tighten these bypass valves with a wrench. Only hand tighten.)

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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.

Before testing the blade clutch/brake operation, make sure the area is clear and there is nothing vulnerable to possible thrown objects 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. The parking brake should now be applied. Move the engine throttle to ¾ speed setting.

Place your 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 short amount of time, service the blade brake system. With the blades on, now try lifting your feet off the foot platform to test the Operator Presence Control switch (OPC). The engine should die and the blades should stop in several seconds. If not, service the OPC system. Try this a couple of times.

Disengage the blades, set the parking brake, shut off the engine and remove the mower from the stand(s).

Drive the mower around on a level parking lot. It is recommended that the slower setting of the Speed/Sensitivity Adjustment be used. (See further in this manual for information on Speed/Sensitivity Adjustment.) Be sure that the mower drives in a straight line when both hand controls are held to the full speed position which is up against the stationary control bar. If not, see further in this manual for information on tracking adjustment.

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.

Dealer: Please fill out and follow the instruction on the Product Registration Form and have the customer fill out his part of the form. After the Product Registration Card 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 Commercial Products Distributor according to the directions on the Card. Then give the customer his copy of the registration form and then keep your copy and mail the remaining copies of the form to your Wright Commercial Products 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.

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WARNING

This symbol with the word “WARNING” indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

This symbol with the word “CAUTION” indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury.

SAFETY INSTRUCTION MANUAL

TO WRIGHT MOWER USERS & OWNERS: READ THIS MANUAL BEFORE USING.

PLEASE BE CAREFUL!

INTRODUCTION

This mower is built to the highest standards in the industry. However, carelessness or operator error may result in serious bodily injury or death. Accident and hazard prevention are dependent upon the awareness, concern, wisdom, and proper training of the personnel involved in the operation, transport, maintenance, and storage of the equipment. Make sure every operator is properly trained and thoroughly familiar with all of the information in this manual before operating the equipment.

GENERAL SAFETY INSTRUCTIONS

The Wright Sentar is designed with your safety in mind. It has the following safety systems with which you should be familiar:

The warning decals on the mower including the instrument panel warning

The blade switch must be “off” before starting the engine

Your feet must be on the foot platform in order to engage the blades

If you remove your feet from the foot platform while the blades are running the engine will stop and the blades will brake in seconds

Letting go of the hand controls will stop the wheels instantly

Spring loaded chute deflector helps reduce trajectory of thrown objects

Belt/pulley covers on cutter deck

Anti-tip rollers are provided at the rear of the mower to minimize the possibility of tipping back and over on the operator

WARNING

Owner/User Notice:

The owner’s/user’s obligation is to instruct themselves and all potential users in the safe operation of this equipment and be sure they read and follow the instructions in this safety manual and other material provided by Wright Manufacturing, Inc. before using or allowing others to operate the equipment. Do not operate this unit unless you carefully read, understand and follow the assembly, installation, and safety instructions contained in this manual and the warning decals provided on the unit. Do not allow other persons to use this unit unless you make sure they carefully read, understand and follow these instructions. Never allow children to operate or play on the unit.

WARNING

User Experience and Qualifications:

This product is designed for use by physically fit, experienced, professional commercial mower operators who have a minimum of 160 hours of experience operating twelve horsepower and greater industrial mowers. Operators must be 18 years or older and weigh at least 120 pounds and no more than 350 pounds They must have read and understood this manual. DO NOT allow children to operate the mower. Do not allow adults to operate the mower without proper instruction mentioned above. Never allow passengers on the mower.

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