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When and How Often to Mow

The time of day and condition of the grass greatly affect the 
results you’ll get when mowing. For the best results, follow 
these guidelines:

 1.  Mow when the grass is between three and five inches 

high.

 2.  Mow with sharp blades. Short clippings of grass one 

inch or shorter decompose more quickly than longer 
blades. Sharp mower blades cut grass cleanly and 
efficiently, preventing frayed edges which harm the 
grass.

 3.  Mow at time of day when the grass is cool and dry. 

Late afternoon or early evening often provide these ideal 
mowing conditions.

 4.  Avoid mowing after rain or even heavy dew, and never 

mulch when the grass is wet (moist grass does not 
mulch well, and clumps beneath the mower deck).

Mowing Patterns

Always start mowing on a smooth, level area.

The size and type of area to be mowed will determine the 
best mowing pattern to use. Obstructions such as trees, 
fences and buildings, and conditions such as slopes and 
grades must also be considered. 

 1.  Cut long straight strips overlapping slightly.

 2.  Where possible, change patterns occasionally to 

eliminate matting, graining or a corrugated appearance.

 3.  For a truly professional cut, mow across the lawn in one 

direction, then recut the lawn by mowing perpendicular 
to the previous cut.

Note: Always operate the engine at full throttle 
when mowing. 

If you hear the engine slowing down, you are mowing 
too fast—using a slower ground speed will improve the 
cutting efficiency of the blades and prevents many common 
cutting problems. Use an appropriate ground speed for the 
thickness and height of the grass you are cutting (3rd gear 
or slower for manual gear models). If you hear the engine 
slowing down you are mowing too fast, use a slower ground 
speed. 

Mowing Methods

Proper Broadcast Mowing

Broadcasting, or side-discharging, disperses fine clippings 
evenly over the entire lawn.  Many golf courses use this 
method. Your mower has a deep dish deck to allow freer 
circulation of clippings so they are broadcast evenly over the 
lawn.

Engine Speed & Ground Speed for Broadcasting

Always operate the engine at full throttle when mowing.  If 
you hear the engine slowing down, you are mowing too 
fast—using a slower ground speed will improve the cutting 
efficiency of the blades and prevents many common cutting 
problems. 

ALWAYS use an appropriate ground speed for the thickness 
and height of the grass you are cutting (3rd gear or slower 
for manual gear models). If you hear the engine slowing 
down you are mowing too fast, use a slower ground speed.

How Much Grass to Cut Off When Broadcasting

Mow when the grass is 3-5 inches long.  Do not cut the 
grass shorter than 2 to 2-1/2 inches.  Do not cut off more 
that 1 inch of grass in a single pass

Where possible, make one or two passes around the 
outside of the area discharging the grass INTO the 
lawn to keep the cut grass off fences and walks.

The remainder of the mowing should be done in the 
opposite direction so that the clippings are dispersed 
OUT onto the area of lawn previously cut.

Operation

Not 

for  

Reproduction

Summary of Contents for 400Z Series

Page 1: ...03834 Rev Safety Instructions Operator s Manual for ZERO TURN RIDING MOWER Mfg No Description 5900528 400ZB2748 Snapper 400Z Zero Turn Rider with 48 Mower 400Z Series N o t f o r R e p r o d u c t i o...

Page 2: ...d and understand these instructions thoroughly before attempting to start or operate this equipment Save these original instructions for future reference See Features and Controls for the location of...

Page 3: ...23 Oil Filter Change 23 Lubrication 24 Check Transmission Oil Level 25 Transmission Oil Filter Change 25 Servicing the Mower Blades 26 Ground Speed Control Lever Adjustment 28 Speed Balancing Adjustme...

Page 4: ...act your local authorized dealer Read the Manual The operator s manual contains important safety information you need to be aware of BEFORE you operate your unit as well as DURING operation Safe opera...

Page 5: ...up and throw debris that could seriously injure a bystander Be sure to clean up the area to be mowed and remove objects that could be thrown by the blade BEFORE you start mowing Do not operate this un...

Page 6: ...Keep the unit free of grass leaves and excess oil Be sure to perform the maintenance procedures listed in this manual especially periodically testing the safety system Retaining Walls Drop offs and W...

Page 7: ...es or other objects that may obscure vision 24 To reduce fire hazard keep unit free of grass leaves excess oil Do not stop or park over dry leaves grass or combustible materials Training 1 Read unders...

Page 8: ...use loss of traction and loss of control 5 Travel slowly and allow extra distance to stop 6 Do not shift to neutral and coast down hill Children Tragic accidents can occur if the operator is not alert...

Page 9: ...spillage 10 Let engine cool before storing and do not store near flame 11 Stop and inspect the equipment if you strike an object Repair if necessary before restarting 12 Park machine on level ground N...

Page 10: ...cautions and warnings are for your safety To avoid a personal injury or damage to the unit understand and follow all safety decals 1 2 3 1 2 2 3 WARNING If any safety decals become worn or damaged an...

Page 11: ...ndles must be locked in the NEUTRAL position after the operator returns to the seat in order to start the engine WARNING If the unit does not pass a safety test do not operate it See your authorized d...

Page 12: ...ng your authorized dealer for replacement parts service or information you MUST have these numbers Record your part number serial number and engine serial numbers in the space provided on the inside f...

Page 13: ...position the faster the drive wheel will turn See the Operation section for proper steering instructions Seat Adjustment Lever The seat can be adjusted forward and back Move the lever towards the lef...

Page 14: ...m position Place the adjustment pin in the desired cutting height and release the lift lock lever Throttle Control The throttle controls engine speed Move the throttle forward to increase engine speed...

Page 15: ...ake disengage the PTO stop the engine and remove the key To reduce fire hazard keep the engine tractor and mower free of grass leaves and excess grease Do not stop or park tractor over dry leaves gras...

Page 16: ...e seat into position Figure 4 Checking Tire Pressure Check Tire Pressures Tire pressure should be checked periodically and maintained at the levels shown in the chart Note that these pressures may dif...

Page 17: ...D Optional Position A B C D Figure 6 Mowing Height Adjustment A Cutting Height Adjustment Pin B Deck Lift Foot Pedal C Deck Lift Lock lever Mowing Height Adjustment The cutting height adjustment pin A...

Page 18: ...n NEUTRAL 2 Disengage the PTO by pushing down on the PTO switch 3 Engage the parking brake by pulling the handle up until it locks into position 4 Move the throttle control to mid throttle position an...

Page 19: ...Forward Travel Practice Gradually move both ground speed control levers evenly FORWARD from neutral Slow down and repeat NOTE Straight forward travel takes practice If necessary top speed can be bala...

Page 20: ...ro Turn rider you will learn more maneuvers that will make your mowing time easier and more enjoyable Remember the more you practice the better your control of the Zero Turn will be Practice Turning A...

Page 21: ...endations can improve the performance and life of your machine Height of Grass Often cutting height is a matter of personal preference Typically you should mow the grass when it is is between three an...

Page 22: ...ll improve the cutting efficiency of the blades and prevents many common cutting problems Use an appropriate ground speed for the thickness and height of the grass you are cutting 3rd gear or slower f...

Page 23: ...n properly if the grass is wet or if the grass is simply to high to cut Even more than normal mowing mulching requires that the grass be dry and the the appropriate amount is cut Do not use the mower...

Page 24: ...s Clean Deck Check Replace Mower Blades Lubricate Rider Mower Check Tire Pressure Every 100 Hours Check Mower Blade Stopping Time Clean Battery Cables Every 250 Hours Change Transmission Oil Filter EN...

Page 25: ...during normal operation 5 Place an absorbent shop cloth under the engine oil filter Remove the engine oil filter and replace with a new one 6 Remove the engine oil dipstick F that is located on the l...

Page 26: ...pivots discharge chute hinge Generally all moving metal parts should be oiled where contact is made with other parts Keep oil and grease off belts and pulleys Remember to wipe fittings and surfaces c...

Page 27: ...ilm of new oil to the gasket of the new replacement filter After the oil has drained thread the new filter onto the filter base until the gasket makes contact then tighten 3 4 of a turn more 5 Reinsta...

Page 28: ...r have nicks sharpen the blades See Sharpening the Mower Blades Figure 26 Loosening the Mower Blade for Removal CAUTION Avoid injury Mower blades are sharp Always wear gloves when handling mower blade...

Page 29: ...lade moves downward sharpen the heavy end until the mower blade is balanced See Sharpening the Mower Blades for proper sharpening instructions 4 Repeat the process until the mower blade remains in the...

Page 30: ...the mount bolts A Figure 32 and pivot the lever s B to align with each other To Adjust the Handle Placement Loosen the jam nuts and adjust the placement bolt C Figure 33 in or out to properly adjust t...

Page 31: ...s to the parking brake components 3 Measure the distance from the top of the brake spring rod C Figure 34 to the top of the lock nut D on both sides of the unit The measurement should be 50 1 27 cm If...

Page 32: ...rds the front of the machine is used to lock the rod in place Loosen the jam nut that locks against the ball joint and turn the linkage rod to adjust If the machine creeps forward turn the linkage rod...

Page 33: ...r counterclockwise to lengthen the distance between the rod pivots Reinstall the clevis on the lift pivot arm and secure with the 1 2 clevis pin previously removed Tighten the jam nut against the clev...

Page 34: ...tationary idler pulley B Carefully release the tension on the breaker bar 7 Reinstall the mower deck guards 8 Run the mower under no load condition for about 5 minutes to break in the new belt WARNING...

Page 35: ...ngth of the mower belt tensioner spring A Figure 42 The measurement should equal 7 17 8 cm If the measurement does not equal 7 17 8 cm adjust the anchor eyebolt B Adjusting the Mower Belt Idler Spring...

Page 36: ...release the tension WARNING STORED ENERGY DEVICE Improper release of the belt tension spring can result in personal injury Use extreme caution when removing this spring E F G A B C 5 Remove the old be...

Page 37: ...with a wire brush until shiny 3 Reinstall the battery and reattach the battery cables positive red cable first A 4 Coat the cable ends and battery terminals with petroleum jelly or non conducting grea...

Page 38: ...ell once per hour The battery is fully charged when the cells are gassing freely at low charging rate and less than 0 003 change in specific gravity occurs over a three hour period Jump Starting With...

Page 39: ...as long as the battery remains frozen WARNING For your personal safety use extreme care when jump starting Never expose battery to open flame or electric spark battery action generates hydrogen gas wh...

Page 40: ...ool dry place and fully charged about once a month If battery is left in unit disconnect the negative cable WARNING Never store the unit with gasoline in engine or fuel tank in a heated shelter or in...

Page 41: ...then refill the fuel tank 5 Engine flooded 5 Move choke control to closed position 6 Fuse blown 6 Replace fuse 7 Battery terminals require 7 Clean the battery terminals cleaning 8 Battery discharged o...

Page 42: ...maged Engine stalls easily with 1 Engine speed too slow 1 Set to full throttle mower engaged 2 Ground speed too fast 2 Decrease Ground Speed 3 Cutting height set too low 3 Cut tall grass at maximum cu...

Page 43: ...ly inflated 3 Blades are damaged 4 Deck shell is damaged 5 Mower spindle is bent or loose 6 Blades are installed incorrectly 1 Level the deck correctly 2 Check and inflate the tires 3 Replace the blad...

Page 44: ...cts on which engines are placed the gas engine may not develop the rated gross power when used in a given piece of power equipment This difference is due to a variety of factors including but not limi...

Page 45: ...e pole a fence post or any vertical structure 3 Compare the angle of the fold with the angle of the hill SLOPE INDENTIFICATION GUIDE ALIGN THIS EDGE WITH A VERTICAL SURFACE TREE POLE FENCE POST BUILDI...

Page 46: ...anty registration is necessary to obtain warranty on Briggs Stratton products Save your proof of purchase receipt If you do not provide proof of the initial purchase date at the time warranty service...

Page 47: ...respects to the engine described in the manufacturer s application for certification The warranty period begins on the date the engine is originally purchased The warranty on emissions related parts...

Page 48: ...535 Macon St McDonough GA 30253 www snapper com Safety Instructions Operator s Manual for ZERO TURN RIDING MOWER N o t f o r R e p r o d u c t i o n...

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