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other electrical components. This is a stan-
dard plug-in type automotive fuse rated at 7.5 
amp.

7.

Safety Switches: There are five safety 
switches in the electrical circuit which control 
the engine. They are (1) the blade clutch 
switch, (2) the parking brake switch, (3) the 
left and (4) the right steering lever switches 
and (5) the seat switch.They operate so that 
in order to start the engine, the blade clutch 
switch must be off, the parking brake must be 
engaged, and both steering levers must be 
opened-out to the side in the neutral position. 
Once the engine is started, the seat must be 
occupied and the parking brake must be 
released before either of the steering levers is 
folded up to the operating position or the 
engine’s electronic ignition will be grounded 
out and the engine will stop. Also, the seat 
must be occupied before the blade clutch 
switch can cause the blades to rotate.

8.

Safety Switch Operation Checks: The fol-
lowing operational checks should be made 
daily.

a.

Blade Clutch Switch: Sit in the operator’s 
seat. With both steering levers opened-out 
in the neutral position and the parking 
brake engaged, turn the blade clutch 
switch “on” and try to start the engine. The 
engine should not start. If it does, the blade 
clutch switch must be replaced. If the 
engine does not start, turn the blade clutch 
switch “off” and start the engine. Now turn 
the blade clutch switch “on” and the blades 
should rotate. If the blades do not turn, the 
blade clutch switch must be replaced, the 
seat switch must be replaced or the elec-
tric PTO clutch must be repaired.

b.

Parking Brake Switch: Sit in the opera-
tor’s seat. With both steering levers 
opened-out in the neutral position and the 
blade clutch switch “off”, release the park-
ing brake and try to start the engine. The 
engine should not start. If it does, the park-
ing brake switch must be repositioned or 
perhaps replaced. If the engine does not 
start, engage the parking brake and start 
the engine. Swing one steering lever up to 
the operating position and the engine 
should stop. If the engine does not stop, 
the parking brake switch must be reposi-
tioned or replaced.

c.

Left and Right Steering Lever Switches: 
Sit in the operator’s seat. With both steer-
ing levers opened-out in the neutral posi-
tion, the parking brake engaged and the 
blade clutch switch “off”, swing the left 

steering lever up to the operating position 
and try to start the engine. The engine 
should not start. If it does, the left steering 
lever switch must be repositioned or per-
haps replaced. Open the left steering lever 
to the neutral position and swing the right 
steering lever up to the operating position 
and try to start the engine. The engine 
should not start. If it does, the right steer-
ing lever switch must be repositioned or 
perhaps replaced. If the engine does not 
start, Open the right steering lever to the 
neutral position and start the engine. 
Swing the left steering lever up to the oper-
ating position and the engine should stop. 
If the engine does not stop, the left steering 
lever switch must be repositioned or 
replaced. Open the left steering lever out to 
the neutral position and start the engine. 
Swing the right steering lever up to the 
operating position and the engine should 
stop. If the engine does not stop, the right 
steering lever switch must be repositioned 
or replaced.

d.

Seat Switch: With both steering levers 
opened-out to the neutral position, the 
parking brake engaged and the blade 
clutch switch in the “off” position, start the 
engine. Now release the parking brake, 
hold down on the back of the operator’s 
seat against spring pressure, and swing 
one of the steering levers up to the operat-
ing position. Release the operator’s seat 
and the engine should stop. If the engine 
does not stop, the seat switch must be 
replaced. With both steering levers folded 
out in the neutral position, the parking 
brake engaged and the blade clutch switch 
in the “off” position, sit in the operator’s 
seat and start the engine. Turn the blade 
clutch switch to the “on” position and the 
blades should start to rotate. Raise up 
slightly off the operator’s seat and the 
blades should stop. If the blades do not 
stop when you dismount from the opera-
tor’s seat, the seat switch must be 
replaced.

e.

Electric PTO Clutch: This clutch operates 
when the engine is running, the operator is 
in the operator’s seat and the blade clutch 
switch is turned on.This electric clutch is a 
fairly trouble free device. If a problem 
develops and the blades do not turn, first 
check the 7.5 amp fuse in the yellow, 16-
gauge wire between terminal “L” (for the 
Gasoline Engine) on the ignition switch 
and the hour meter and then investigate 

Summary of Contents for 25HP Tank

Page 1: ...Hydrostatic Zero Turn Commercial Riding Mower Professional Turf Equipment OPERATOR S AND SERVICE MANUAL MODEL 25HP Tank 53AB5BAX150 53AB5DCX150...

Page 2: ...e and Service 14 A Mower Deck 14 B Hydraulic Oil 16 C Electrical System 17 D Tires 19 E Brakes 19 F Hydraulic System 20 G Storage 21 Maintenance Schedule 22 Performance Adjustments 24 A High Speed Tra...

Page 3: ...your mower at peak efficiency If operated and maintained properly your mower will give dependable service CAUTION Only thoroughly trained persons should operate and maintain this mower This machine ca...

Page 4: ...alled 6 Do not check for hydraulic leaks with any part of the body 7 Do not add fuel to a machine when the engine is running and or the exhaust system is hot 8 Keep machine clean and free of debris gr...

Page 5: ...er use the mower without the discharge chute installed and placed in the down position 4 Always remove debris and other objects from the area to be mowed Note debris and loose grass will reduce tracti...

Page 6: ...nning ROTATING BLADE DANGER Part Number 00030633 Part Number 01003449 Part Number 01003450 Part Number 01003857 KEEP HANDS and FEET AWAY DANGER TO R ED U CE TH E RI SK OF IN JU RY D O N OT O P E R AT...

Page 7: ...driven power take off from engine Controls Engine ignition and start switch throttle choke left and right steering levers electric blade clutch switch parking brake mower deck lift Parking Brake Inter...

Page 8: ...d raise the cutting deck to the trans port position Always allow other vehicles to have the right of way l If you hit a solid object while mowing turn off the blade clutch switch place the steer ing l...

Page 9: ...wed B Controls 1 Engine Ignition and Start Switch See Fig ure 1 Located on the instrument housing below the right side of the operator s seat When the key is inserted and turned clock wise 45 degrees...

Page 10: ...foot pedal move the hand lever outward and slowly reduce foot pedal effort to lower the mechanism To ser vice the unit Remove the detent pin from the pedal assembly Fold the pedal up to vertical posit...

Page 11: ...sive wear Replace if any of these are detected d Replace the deck cover 4 Adjust the Mowing Deck The cutting height is set anywhere in the range of 1 1 2 to 5 You may need to adjust the mowing deck to...

Page 12: ...ct the machine to make sure 1 All guards shields including mower chute deflector are in their proper place are secure and are functional 2 That there are no spilled or leaking fuel or oil sources nor...

Page 13: ...of the machine until the machine begins to move rearward Release the lap bars and the machine should stop The more the lap bars are moved toward the rear of the machine the faster the machine will mo...

Page 14: ...her you move the levers forward the faster the mower will go forward h To back up move both steering levers slightly backward and the mower will slowly move backward The farther you move the levers ba...

Page 15: ...injury Wrap the cutting surface of the blade with a rag to avoid injury a Set the parking brake b Clean any debris from the blades Keep blades sharp and free of build up at all times c Sharpen blades...

Page 16: ...b Stop the engine and remove the key from the ignition switch c Clean the area around the Hydraulic Oil fill neck d Remove the hydraulic fill cap and check the level The correct level is up to the low...

Page 17: ...l b Clean the battery before storing A dirty battery will lose its charge over time c Store the battery with a full charge A dis charged battery will freeze refer to the table below d Recharge battery...

Page 18: ...ut in the neutral posi tion the parking brake engaged and the blade clutch switch off swing the left steering lever up to the operating position and try to start the engine The engine should not start...

Page 19: ...p free Slip the axle assembly through one side of the caster yoke through a spacer sleeve a spare wheel the other spacer sleeve and finally through the other side of the caster yoke Then tighten the l...

Page 20: ...gallon drain pan under the drain plug on the bottom of the hydraulic oil tank Remove the drain plug drain the tank then replace the plug Place the drain pan under the filter and remove the filter by u...

Page 21: ...mal position and place the steering lever on the side you adjusted up to the operating position If you feel a slight push forward or a slight pull backward from the neu tral position you must adjust t...

Page 22: ...and the hydro drive belt g Check the blades Make sure they are sharp and that the blade securing cap screws are tight h Check the cutting height 2 When ready to start the engine a Check the five safe...

Page 23: ...and Down Pivots Seat Hinge Steering Lever Linkage Rod End Bearings Lever Return Assembly Rod End Bearings Pump Control Lever Pivots Brake Lever Pivot Clevis Pin Brake Lever Control Rod Pivot Brake Co...

Page 24: ...see Fig 1 on page 8 of the manual This display defaults to Tachometer mode when engine is running 4 Move the throttle lever to the high speed posi tion and note the RPM reading on the display 5 Move t...

Page 25: ...rd position 1 Operator s back should stay in contact with the seat back 2 Lap bars should not contact operator s legs c In the full reverse position 1 Lap bars should not contact the opera tor s legs...

Page 26: ...he right blade when aligned along the mower centerline The blade to ground height at the rear of the blade tip should be 1 8 to 1 4 higher than the front tip This is referred to as blade pitch The sam...

Page 27: ...27 WIRING DIAGRAM...

Page 28: ...28 MAINTENANCE RECORD DATE WORK PERFORMED DATE WORK PERFORMED...

Page 29: ...29 MAINTENANCE RECORD DATE WORK PERFORMED DATE WORK PERFORMED...

Page 30: ...30 MAINTENANCE RECORD DATE WORK PERFORMED DATE WORK PERFORMED...

Page 31: ...MAINTENANCE RECORD DATE WORK PERFORMED DATE WORK PERFORMED...

Page 32: ...brake or clutch inspections adjustments made as part of normal maintenance blades blade sharpening equipment setup and normal wear items b incidental cost such as transporting equipment to and from th...

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