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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 neutral 
adjustment knobs in front of and between 
the two hydraulic pumps until they stop.  
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.)  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 
control to its highest RPM 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 immediately 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. 

Summary of Contents for Sentar 19729

Page 1: ...illustrated parts lists Part 79490104 are available from your authorized Wright Dealer for a nominal charge or if a dealer is not available by contacting Wright Manufacturing Inc Please indicate the complete model number and serial number of your Wright product For reference please note the following information at the time of purchase SERIAL _________________________ MODEL _______________________...

Page 2: ...ications 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...

Page 3: ...ting Instructions Inspect Mower Before Each Use How to Start the Mower Unusual Noises or Irregular Operation How to Drive the Mower How to Stop and Park the Mower How to Drive the Mower Over a Curb How to Use the Mower on Varying Terrain How to Adjust Neutral How to Change the Speed Sensitivity Adjustment How to Perform the Tracking Adjustment How to Test Use the Blade Clutch Brake Switch How to T...

Page 4: ...ake 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 Owner User Notice WARNING The owner s user s obligation is to instruct themselves and all po...

Page 5: ...cations Keep the Wright mower in good operating condition and keep safety devices and shields in place and in working condition Keep all nuts bolts and screws tight to be sure the equipment is in safe working condition Check the blade mounting bolts for proper tightness every eight 8 hours of operation Check the blades for excessive wear and sharpness every four to eight 4 8 hours of operation Rep...

Page 6: ...engine remove ignition key and spark plug wire from spark plug s All operators of this mower should exercise caution when driving this mower at high speeds Sudden stops from excessive speeds may cause serious injury DO NOT allow inexperienced people to operate the mower until they have read and understood these safety instructions Operate the mower at slower speeds while becoming familiar with it ...

Page 7: ...et go of the handles and jump off if necessary Otherwise control the mower gently and stay off slopes that tend to make the wheels slide When crossing a slope sideways the Sentar has the average amount of weight on the drive wheels versus the front wheels similar to level ground However this angle leaves the least weight on the higher side drive wheel tending to make it slip This is the preferred ...

Page 8: ...t is highly flammable Do not smoke while handling gasoline Use an approved gasoline container Never remove the fuel cap or add gasoline to a running or hot engine or an engine that has not been allowed to cool for several minutes after running Never fill the tank indoors and always clean up spilled gas NEVER store the equipment with gasoline in the tank inside a building where fumes may reach an o...

Page 9: ...ion 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 lower in the front than in the rear and the deck should be level side to side If the deck is not adjusted proper...

Page 10: ...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 ...

Page 11: ...e the control levers are in the exact neutral position Apply the parking brake if it is not already set Turn OFF the blade engaging switch if it is on Turn fuel valve toward tank with fuel in it Starting the engine Electric Start Start the engine according to the engine manufacturer s recommendation see engine manual Set the throttle control lever near mid throttle pull out on the choke control kn...

Page 12: ...he right tire onto the curb After both wheels are on top of the curb turn the mower counterclockwise and back up so the left caster wheel comes over and last should be he right caster wheel as the mower is twisting to the left counterclockwise The technique works the best if you try not to drive backwards at a near 90 degree angle to the curb but get all of the wheels to go over while the mower is...

Page 13: ...ither cable should be shortened so much that at full speed it pulls the pump control lever on the sides of the pumps against the pump s internal stop The pumps have an internal stop that is not designed to take this type of force and could eventually cause pump leakage or other damage to the pump Therefore to reach the maximum capable speed the cables should be shortened one turn at a time until y...

Page 14: ...e 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 30 and 40 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 Height of Cut Before adjusting ...

Page 15: ... oil level in the reservoir is correct The level should be between 4 4 5 below the top of the oil fill tube Use fully synthetic oil Mobil 1 15W 50 Lift the mower so that the rear wheels are off the ground Be careful to support the mower so that it will not fall or tip while the system is bled of air With the bypass valves open and the engine running slowly move the control levers back and forth fi...

Page 16: ...ine 1 Check for fuel or oil leakage Engine 1 Check and clean air intake screen Engine 1 Clean or replace engine air filter and prefilter Engine 1 Clean engine blower screen and fins with compressed air Engine 1 Clean hydro oil cooler with compressed air Check for loose hardware e clips snap rings nuts etc Check blades for excessive wear and sharpness sharpen balance or replace as necessary FIRST 8...

Page 17: ...he time of their installation Rental Use The above warranty periods are limited to maximum of ninety 90 days for mowers that are used for rental purposes Exclusions Air engine oil and hydraulic oil filters tires tubes Bent parts occurring through impact or hard use Worn bearings other than spindle bearings see above Worn bushings cotters clips pins and retainers Grease fittings zerks Paint and cos...

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