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12

C. Initial Adjustments

1.

Check the fluid levels and tires:

Note:

 

These checks should be made daily, 

before starting the engine.

a. Fuel: Using a good grade of unleaded, 

regular gasoline, fill the fuel tank (beside 
the engine on the left side of the mower). 
When the fuel reaches one inch from the 
top of the tank, stop. DO NOT OVERFILL. 
Space must be left for expansion.

b.

Engine Oil: (Filled at the factory before 
shipment.) Pull out the oil dipstick, wipe it 
off and reinsert it. Pull it out again and read 
the oil level. If it is below the operating 
range, add oil through the fill tube using a 
funnel to bring it up to the top of the operat-
ing range.

Note:

 

Gasoline Engine: Use SAE 10W30 or 

SAE 10W40 engine oil, rated for service SJ.

c.

Hydraulic Oil: (Filled at the factory before 
shipment.) The hydraulic oil is contained 
within the integrated hydrostatic transaxles 
and does not need to be checked or 
replaced.

d. Tires: 8-10 psi rear, 20-25 psi front caster 

tires

Note:

 

New tires are overinflated in order to 

properly seat the bead to the rim. The normal 
working pressure for the traction tires is 8-10 
psi. The front caster wheels should be inflated 
to 20-25 psi.

2.

Check that all Nuts, Bolts and Screws are 
Tight.

3.

Check the tension of the deck drive belts.

a.

Remove the deck cover

b.

The tension of the deck drive belts are 

maintained by a spring mechanism that 
adjusts for wear and stretch.

c.

Examine the belts for cuts, fraying, and 

excessive wear. Replace if any of these 
are detected.

d.

Replace the deck cover.

4.

Adjust the Mowing Deck: The cutting height 
is set in 1/2” increments in the range of 1-1/2" 
to 4". Do not attempt to raise the mower deck 
higher than 4” because you will damage com-
ponents on your mower. You 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 the parking brake, shut off the 
engine, remove the key from the ignition 

switch, remove connection of the spark 
plugs and using the transport lever, lower 
the mowing deck into the cutting position.

b.

Using a ruler, pencil and paper, measure 
and note the distance from the paved sur-
face to the bottom edge of the mowing 
blade at the front and the back of the deck 
on each side of the mower. (Four dimen-
sions.)

Note:

 

The front edge of the mowing deck 

should be 1/8"-1/4" below the rear edge of the 
deck so that the blades are cutting grass in 
only the front half of their circular path. This 
decreases friction and reduces the drive 
power required.

c.

If the dimension at the front of the mowing 
deck is 1/8"-1/4" lower than the dimension 
at the rear of the deck (pitch) on each side 
of the mower, do not adjust. If not, you will 
need to adjust the Deck Front Links (See 
Figure 5).

d.

Lower the mower deck to the cutting posi-
tion. With a wrench, loosen the inner rear 
nuts on the Deck Front Links adjust the 
deck up or down, use a wrench and with a 
few turns, adjust clockwise or counter 
clockwise the outer rear nut of the Deck 
Front Links. Repeat this procedure on the 
opposite side of the Mower. Once the deck 
is adjusted, retighten bolts.

e.

With the deck still in the cutting position, 
adjust the level (side to side). With a 
wrench loosen the top inner nut of the left 
side of the Deck Lift link. To adjust the side 
of the deck up or down turn the lower nut 
clockwise or counter clockwise a few turns. 
Retighten nuts.

f.

Raise the mowing deck to the transport 
position using the transport lever.

g.

Use the transport lever to lower the mow-
ing deck to the cutting position and repeat 

Deck Lift Links

Figure. 5

Deck Front Links

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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