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right control panel). This must be 
increased to full speed (3525-3675 rpm) 
after becoming familiar with the machine.

2.

Release the park brake.

3.

Move both lap bars out of the neutral/
start position to the neutral position 
(toward center of machine). Slowly, 
move both lap bars toward the front of 
the machine until the machine begins to 
move forward — release the lap bars 
and the machine should stop. The more 
that the lap bars are moved toward the 
front of the machine, the faster the 
machine will move in the forward direc-
tion. Release the lap bars and the 
machine should stop traveling forward. 
(This is a safety check, the normal pro-
cedure is for the operator to slowly bring 
the lap bars to the neutral position).

4.

Do not advance the lap bars rapidly as 
this could cause turf defacement, loss of 
traction, and/or instability.

5.

To turn, advance one lap bar ahead of 
the other and the machine will turn 
toward the opposite from the side that 
was advanced — I.E. to turn clockwise 
(to the Right), move the LEFT lap bar for-
ward more than the right side, and to 
turn counter-clockwise (to the LEFT), 
move the RIGHT lap bar forward more 
than the left side. NOTE: If one lap bar is 
in the neutral position and the other is 
advanced, the turn side tire will not 
rotate and a “pivot turn” will be executed 
— turf defacement could occur (if on 
grass) as well as potential damages to 
the traction surface and the tire. If the lap 
bar on the turn side is not brought all the 
way to neutral, then the turn side tire will 
continue to rotate and a “U-turn” will be 
executed with a low potential for turf 
defacement as well as traction surface 
and tire damage.

i.

To drive in the REVERSE direction:

1.

Make sure no bystanders, animals, or 

objects are behind the machine. Look 
behind the machine, and use extreme 
care.

2.

Slowly, move both lap bars toward the 

rear 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 move in the reverse direc-
tion. Release the lap bars and the 
machine should stop traveling in reverse 

(this is a safety check, the normal proce-
dure is for the operator to slowly bring 
the lap bars to the neutral position).

3.

Do not move the lap bars rapidly as this 
could cause turf defacement and/or loss 
of traction.

4.

To turn, move one lap bar ahead of the 
other and the machine will turn toward 
the same side that was moved — I.E., to 
turn counter-clockwise (to the LEFT), 
move the LEFT lap bar rearward more 
than the right side, and to turn clockwise 
(to the RIGHT), move the RIGHT lap bar 
rearward more than the left side. NOTE: 
If one lap bar is in the neutral position 
and the other is moved, the turn side tire 
will not rotate and a “pivot turn” will be 
executed. Turf defacement could occur 
(if on grass) as well as potential dam-
ages to the traction surface and the tire. 
If the lap bar on the turn side is not 
brought all the way to neutral, then the 
turn side tire will continue to rotate and a 
“U-turn” will be executed with a low 
potential for turf defacement as well as 
traction surface and tire damage.

j.

To perform a “zero turn”:

1. Please note, a zero turn maneuver can 

not be executed while the machine is 
moving in the forward or, reverse direc-
tions, the machine must come to a stop 
first.

2. To turn clockwise, slowly move the LEFT 

lap bar forward while simultaneously 
moving the RIGHT lap bar rearward. 
Release both lap bars and the machine 
should stop turning.

3. To turn counter-clockwise, slowly move 

the RIGHT lap bar forward while simulta-
neously moving the LEFT lap bar rear-
ward. Release both lap bars and the 
machine should stop turning (this is a 
safety check, the normal procedure is for 
the operator to slowly bring the lap bars 
to the neutral position).

3.

Start the Engine:

a.

Open the fuel shutoff valve.

b.

Sit on the Seat. Set the parking brake 
“On”.

c.

Move the left and right steering levers to 
the neutral, opened-out position.

d.

Turn the electric blade clutch switch “Off”.

e.

Push the choke/throttle control to the full 
forward position.

f.

Insert the key in the ignition and start 
switch and turn the switch to “On”.

Summary of Contents for 01008371 53AA5A5L100

Page 1: ...Hydrostatic Zero Turn Residential Riding Mower Turf Equipment OPERATOR S AND SERVICE MANUAL MODEL 15HP Z Force 44 53AA5D2L100 18HP Z Force 44 53AA5A5L100...

Page 2: ...drostatic Drive System 17 C Electrical Circuit 17 D Tires 19 E Brakes 20 F Hydraulic System 20 G Storage 21 Maintenance Schedule 21 Performance Adjustments 23 A High Speed Tracking Adjustment 23 B Eng...

Page 3: ...r will give dependable service CAUTION Only thoroughly trained persons should operate and maintain this mower This machine can cause serious injury to anyone who mis uses it and does not understand it...

Page 4: ...p this manual in a safe place for future and regular reference and for ordering replacement parts 2 Only allow responsible individuals familiar with the instructions to operate the machine Know the co...

Page 5: ...ng this unit on a sloped or hilly area If the slope is greater than 15 degrees as shown on the slope gauge do not operate this unit on that area or serious injury could result DO Mow across slopes not...

Page 6: ...After striking a foreign object stop the engine remove the wire from the spark plug and thor oughly inspect the mower for any damage Repair the damage before restarting and operating the machine 9 Gr...

Page 7: ...ON O TM O WW H E NC H IL D R E NO RO T H E R SA R EA R O U N D N E V E R C A R R YC H IL D R E N E V E NW IT HB L A D E SO F F U S EE X T R AC A U T IO NO NS L O P E S D ON O TM O W S L O P E SG R E A...

Page 8: ...lades 3 belt 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 Parkin...

Page 9: ...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 levers in th...

Page 10: ...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 the ignition circuit is...

Page 11: ...tops it will shut off the flow of fuel to the engine When turned in a counterclockwise direction it will open and allow fuel to flow to the engine Close this valve if you are not going to run the mowe...

Page 12: ...may need to adjust the mowing deck to achieve the proper angle for mowing Follow the procedures below to set the appropriate angle to the mowing deck a Park the mower on a flat paved surface engage th...

Page 13: ...hydraulic tank caps hoses or fittings 3 That there are no loose or missing hard ware nor any missing items 4 That no non approved devices are installed 5 That all safety signs and decals are properly...

Page 14: ...d the rear of the machine the faster the machine will move in the reverse direc tion Release the lap bars and the machine should stop traveling in reverse this is a safety check the normal proce dure...

Page 15: ...slowly move backward The farther you move the levers backward the faster the mower will go backward i To turn pull the lever back on the side to which you want to turn The farther back you pull the l...

Page 16: ...blades sharp and free of build up at all times c Sharpen blades evenly at the original 30 angle to maintain balanced cutting blades Do not sharpen the underside of the blades Use a electric blade sha...

Page 17: ...ath the operator s seat If so equipped remove the fillcaps and check the level of the liquid elec trolyte in the battery every 50 operating hours If the level in any of the six cells has dropped below...

Page 18: ...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 C...

Page 19: ...ke 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 u...

Page 20: ...d Loosen jam nuts on both ends of rod con nectors e Start unit and push throttle all the way on f If unit creeps forward rotate vertical rod links counter clockwise If unit creeps in reverse rotate c...

Page 21: ...eplace the engine oil filter and refill the crankcase with fresh oil f Gasoline Engine Drain all the fuel Close the fuel tank shutoff valve Disconnect the fuel line from the carburetor and put the end...

Page 22: ...Engine Owner s Manual OIL CHART Apply a few drops of SAE 20W 50 engine oil grease or use a spray lubricant Apply the oil to both sides of pivot points Wipe off any excess Start engine and operate mow...

Page 23: ...page 9 of the manual This display defaults to the 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 the thrott...

Page 24: ...djustments are required height adjustments should be made prior to angular adjustments 4 To adjust the height of the lap bars a Remove the nuts from the lap bar mounting bolts see Fig 10 b Remove the...

Page 25: ...rline 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 same height difference should be true for the left b...

Page 26: ...26 WIRING DIAGRAM...

Page 27: ...to maintain your footing and you could slip resulting in serious injury Operate RIDING mowers up and down slopes never across the face of slopes Operate WALK BEHIND mowers across the face of slopes ne...

Page 28: ...commercially is warranted for one year only Commercial use is defined as either having hired operators or used for income producing purposes Items not covered The warranty does not cover routine main...

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