background image

21

Figure 24. Recommended Engine Oil

Use oil classified API Service Class SG, 
SH, SJ or better with SAE Viscosity:

100

80

60

40

20

32

0

-20

38

27

16

4

-7

0

-18

-30

˚F

˚C

10W-30 Conventional Or Synthetic

5W-20, 5W-30 

Conventional

5W-20, 5W-30 

Synthetic*

*Recommended: Synthetic oils provide better starting below -10˚F.

Engine Maintenance Items

CHECK ENGINE OIL LEVEL

Service Interval:

Before each use, and every 8 hours.

1. Turn the engine off, and set the parking brake to

PARK.

2. Clean the area around the dip stick (C, Figure 25).

3. Remove the dip stick (C) and clean it with a paper

towel.

4. Insert the dip stick back into the engine, but do not

thread the cap back onto the tube (D).

5. Remove the dip stick and read the oil level. The oil

level should be between the “F” and “L” marks (D). If
not, add oil according to the oil recommendations
chart (Figure 24).

CHANGE ENGINE OIL

Service Interval:

100 Hours.

Oil Capacity:

2 Quarts with oil filter change.

Note: Change engine oil while the engine is warm. Run
the engine for a few minutes, then shut the engine off
and allow it to cool from hot to warm.

1. Clean the area around the dip stick (C, Figure 25)

and oil drain tube (A).

2. Remove the oil drain plug (A) from the end of the oil

drain tube. Remove the dip stick (C). Allow ample
time for complete drainage.

3. Reinstall the oil drain plug (A).

4. Fill the crankcase with oil. See CHECK ENGINE OIL

LEVEL above.

CHANGE ENGINE OIL & FILTER

Service Interval:

200 Hours.

Oil Capacity:

.95 Quarts with oil filter change.

Note: Change engine oil while the engine is warm. Run
the engine for a few minutes, then shut the engine off
and allow it to cool from hot to warm.

1. Clean the area around the dip stick (C, Figure 25)

and oil drain (A).

2. Remove the oil drain plug (A) and and dip stick (C).

Allow ample time for complete drainage.

3. Remove the oil filter (B). Discard the filter.

4. Turn the new filter upside down and fill with fresh

engine oil. Allow the oil to seep into the new filter for
two minutes.

5. Using a drop of oil on your finger tip, wet the rubber

gasket on the bottom of the new filter.

Figure 25. Oil Change
A. Oil Drain Tube
B. Oil Filter
C. Dip Stick
D. Checking Oil Level

A

B

D

C

6. Dump the oil out of the filter and install the filter on

the filter base. Turn the filter clockwise until the rub-
ber gasket meets the filter base. Then turn 2/3 to 1
full turn more.

7. Reinstall the oil drain plug (A).

8. Fill the crankcase with oil. See CHECK ENGINE OIL

LEVEL above.

9. Test run the engine to check for leaks. Stop the

engine for 1 minute, then recheck the oil level.

Summary of Contents for ZT 1644

Page 1: ...s Covers are all present at the beginning of this file Back cover for a particular manual is the page IMMEDIATELY AFTER the front cover Check the front cover for the individual part number typically a 171xxxx number BODY The body of the manual is identical regardless of the cover used REMEMBER ODD number pages are ALWAYS right hand pages and EVEN number are ALWAYS left hand pages General This inst...

Page 2: ...THIS PAGE INTENTIONALLY BLANK ...

Page 3: ...RATOR S MANUAL ZT 1644 Zero Turn Rear Engine Rider 16 HP 44 Mower Electric Start Model No 1694862 ZT1644E 1694863 44 Mower Deck CAUTION Before using this product read the manual and follow all its Safety Rules and Operating Instructions ...

Page 4: ...MANUFACTURING INC 500 N Spring Street PO Box 997 Port Washington WI 53074 0997 www simplicitymfg com Copyright 2005 Simplicity Manufacturing Inc All Rights Reserved Printed in USA ...

Page 5: ...on Numbers 7 Operation 8 Maintenance 15 Service Adjustments 24 Storage 28 Troubleshooting 29 Lawn Care LC1 NOTE In this manual left and right are referred to as seen from the operating position Visit www simplicitymfg com to locate a dealer parts manuals and other information ...

Page 6: ...her people or property 21 All drivers should seek and obtain professional and practical instruction 22 Always wear substantial footwear and trousers Never operate when barefoot or wearing sandals 23 Before using always visually check that the blades and blade hardware are present intact and secure Replace worn or damaged parts 24 Disengage attachments before refueling removing an attachment making...

Page 7: ...ve to stop or change speeds while on the slope 4 Do not mow on wet grass Tires may lose traction 5 Never mow down slopes 6 Avoid starting stopping or turning on a slope If tires lose traction i e machine stops forward motion on a slope disengage the blade s PTO and drive slow ly off the slope 7 Keep all movement on slopes slow and gradual Do not make sudden changes in speed or direction which coul...

Page 8: ... the engine running 7 Check grass catcher components and the discharge guard frequently and replace with manufacturer s rec ommended parts when necessary 8 Mower blades are sharp Wrap the blade or wear gloves and use extra caution when servicing them 9 Check brake operation frequently Adjust and service as required 10 Maintain or replace safety and instructions labels as necessary 11 Do not remove...

Page 9: ...ipping purposes and must be set to the correct pres sures for optimum traction Rear Tire Pressure 10 12 PSI Front Tire Pressure 18 20 PSI 5 Push Unit Off Crate To push the unit off the crate Set both transmission release levers to PUSH position by pulling the levers back levers are located under the trail er hitch Cut the steel banding securing rider to pallet 6 bands Set the parking brake to DRIV...

Page 10: ...k 1 Push the PTO switch DOWN to disengage the mower deck PARK POSITION REVERSE TRAVEL LEFT TURN RIGHT TURN 1726429 Decal Danger Warning Lower Part No 1726430 AVOID SERIOUS INJURY OR DEATH READ OPERATOR S MANUAL S KNOW LOCATION AND FUNCTION OF ALL CONTROLS KEEP SAFETY DEVICES GUARDS SHIELDS SWITCHES IN PLACE AND WORKING REMOVE OBJECTS THAT COULD BE THROWN BY THE BLADE DO NOT MOW WHEN CHILDREN OR OT...

Page 11: ...hown below The Mower Deck I D tag is also on the left side on top of the mower deck For location of Engine Serial Number refer to the Engine Owner s Manual Be sure to fill out and return the Warranty Registration Card supplied with your unit PRODUCT REFERENCE DATA Model Description Name Number Stock Number Unit Serial Number Date Purchased ENGINE REFERENCE DATA Engine Make Engine Model Engine Type...

Page 12: ...FULL throttle FAST Move the throttle back to decrease engine speed to IDLE SLOW Choke Close the choke for cold starting Open the choke once the engine starts A warm engine may not require chok ing Move the lever forward past the FULL throttle detent to close the choke Move the lever back to the detent to open the choke CONTROL FUNCTIONS The information below briefly describes the function of indiv...

Page 13: ...pushed by hand See PUSHING THE UNIT BY HAND for operational informa tion Seat Adjustment Knob The seat can be adjusted forward and backward Tip the seat forward loosen the adjustment capscrews slide the seat to the desired position and tighten the capscrews Fuel Tank To remove the cap turn counterclockwise Parking Brake DRIVE Releases the parking brake PARK Locks the parking brake Pull the parking...

Page 14: ...der could tip over injuring the operator or bystanders WARNING TRAILERS CHECKS BEFORE STARTING Check that the crankcase oil is filled to full mark on dipstick Adjust the seat position and make certain you can reach all controls Fill the fuel tank with fresh fuel FUEL RECOMMENDATIONS For daily operation Use only unleaded gasoline with a pump sticker octane rating of 87 or higher Gasohol up to 10 et...

Page 15: ...ider movement 2 Stop the mower by pushing down on the PTO switch 3 Move the parking brake lever to PARK position 4 Move the throttle control to FAST position and turn the ignition key to OFF Remove the key STARTING THE ENGINE 1 While sitting in the operator s seat set the parking brake to PARK Make sure the PTO switch is OFF and the ground speed control levers are locked in PARK positions 2 Move t...

Page 16: ...st you begin with the Smooth Travel procedure to the right and then advance through the forward reverse and turning maneuvers You must set the parking brake to DRIVE prior to moving the control levers out of park position Forward Travel Practice Gradually move both ground speed control levers evenly FORWARD from neutral Slow down and repeat Reverse Travel Practice LOOK DOWN BEHIND then gradually m...

Page 17: ...As you become more familiar and experi enced with operating the zero turn rider you will learn more maneuvers that will make your mowing time easier and more enjoyable Remember the more you practice the bet ter your control of the rider will be Practice Turning Around a Corner While traveling forward allow one handle to gradually return back toward neutral Practice several times before mowing NOTE...

Page 18: ... Figure 10 in the lowest cutting position 3 Slide the mower deck under the right side of the rider Slide the mower backwards making sure that the rear mower supports D Figure 11 slide up the ramps on the frame The rear of the mower is supported by these frame ramps 4 Connect the mower hitch to the front rider hitch by pulling out on the release rod See Figure 11 5 Use the mower belt release lever ...

Page 19: ... system after the unit has been stored for 30 days or longer RIDER MAINTENANCE ITEMS Before Each Use Every Spring Fall 8 Hours 25 Hours 100 Hours 200 Hours Clean Debris from Rider and Engine Compartment Clean Debris from Engine Cooling Areas Air Filter Check Tire Pressure Lubricate Rider Mower Clean Deck Check Replace Mower Blades Clean Battery Cables Check Rider Safety System Check Adjust PTO Clu...

Page 20: ... unit at the beginning of the mowing session lift the seat deck and clean any debris from the intake screen on top of the engine A Figure 13 exposed engine cooling fins and around the air filter assembly Also open the air filter cover B and remove any debris that has accumulated in the air filter compart ment CHECK TIRE PRESSURE Service Interval 25 Hours Tire pressure should be checked periodicall...

Page 21: ... bushings mower pivots mower arbors Use grease fittings when present Not all greases are compatible Use automotive type lithi um grease Oil rear frame assembly pivot hydro linkage seat adjustment assembly brake linkage frame pivot points mower deck height adjustment linkage Generally all moving metal parts should be oiled where contact is made with other parts Keep oil and grease off belts and pul...

Page 22: ... If the blade is not balanced continue to sharpen the heavy side until it balances 7 Reinstall the blade with the lift wings E Figure 20 pointing up toward the mower deck as shown 8 Reinstall the hex washer B Figure 20 spring wash er C and capscrew D Use a wooden block A to prevent blade rotation while tightening the capscrew D to 45 55 ft lbs 61 75 N m Turn capscrew clockwise to tighten WARNING F...

Page 23: ...brake must be set to PARK and the ground speed control levers must be locked in their PARK positions in order to start the engine WARNING If the unit does not pass a safety test do not operate it Locate and contact a dealer through www simplicitymfg com Under no circumstance should you attempt to defeat the purpose of the safety interlock system CLEANING THE BATTERY AND CABLES Service Interval 200...

Page 24: ...ent nuts B Figure 22 until the rotor face and armature face just contacts the gauge 5 Check the windows for an equal amount of tension when the gauge is inserted and removed and make any necessary adjustments by tightening or loosen ing the adjustment nuts NOTE The actual air gap between the rotor and arma ture may vary even after performing the adjustment pro cedure This is due to dimensional var...

Page 25: ...e oil drain plug A from the end of the oil drain tube Remove the dip stick C Allow ample time for complete drainage 3 Reinstall the oil drain plug A 4 Fill the crankcase with oil See CHECK ENGINE OIL LEVEL above CHANGE ENGINE OIL FILTER Service Interval 200 Hours Oil Capacity 95 Quarts with oil filter change Note Change engine oil while the engine is warm Run the engine for a few minutes then shut...

Page 26: ...the pre cleaner to air dry 4 Saturate the pre cleaner with new engine oil Squeeze out the excess oil DO NOT wring out Squeeze the pre cleaner in a paper towel until all excess oil has been removed 5 Reinstall the pre cleaner B over the air filter D 6 Reinstall the air cleaner cover A REPLACE AIR FILTER Service Interval 100 Hours or as required 1 Loosen the air filter cover knob and remove the cove...

Page 27: ... Figure 28 Engine Compartment A Spark Plug B Fuel Filter C Negative Battery Terminal Cable B C A REPLACE SPARK PLUG Service Interval 200 Hours Replacement Spark Plug Champion RC12YC or equiv alent Spark Plug Gap 040 1mm 1 Stop the engine and allow it to cool 2 Clean the area around the spark plug A Figure 28 3 Remove the spark plug and inspect it If at all dam aged or worn replace it 4 Check the s...

Page 28: ...DRIVE positions Loosen the jam nut A Figure 30 and adjust the length of the carriage bolt B so that the levers do not contact each other Repeat on the opposite side Tighten the jam nut A to lock the carriage bolt in position To Adjust Operator Clearance The space between the operator and the control levers can be increase by removing the upper mounting bolt D Figure 30 pivoting the lever forward a...

Page 29: ...To charge the battery follow the instructions provided by the battery charger manufacturer as well as all warnings included in the safety rules sections of this book Charge the battery until fully charged until the specific gravity of the electrolyte is 1 250 or higher and the electrolyte tem perature is at least 60 F Do not charge at a rate higher than 10 amps ENGINE ADJUSTMENTS The carburetor is...

Page 30: ... mid position Arrange the mower blades so that they are pointing from side to side Figure 34 5 Measure the distance between the tips of the outside blades and the ground Figures 33 34 If there is more than 1 8 3mm difference between the meas urements on each side proceed to step 6 If the dif ference is 1 8 3mm or less proceed to Front To Back Leveling 6 See Figure 35 Loosen the outside nut A and t...

Page 31: ...elt tension and remove the mower drive belt F from the PTO pulley G 3 Remove the belt from the remaining deck pulleys Note It is not necessary to remove the mower deck 4 Install the new belt F as shown in Figure 38 Arbor Drive Belt Replacement 1 Park the rider on a level surface Disengage the PTO turn off the engine and set the parking brake Remove the key 2 Remove the mower deck from the rider Se...

Page 32: ...e in stor age To avoid engine problems the fuel system should be emptied before storage of 30 days or longer Follow these instructions 1 Stop the engine remove the key and allow the engine to cool 2 Place a suitable container below the fuel filter A Figure 39 to catch spilled fuel and place a contain er suitable to hold the contents of the fuel tank next to the unit 3 Using locking pliers clamp th...

Page 33: ...tle set to CHOKE position longer than necessary Set throttle to FULL position Spark plug faulty fouled or incorrectly gapped Clean and gap or replace Engine knocks Low oil level Check add oil as required Using wrong grade oil See Change Engine Oil in the Maintenance Section Excessive oil consumption Engine running too hot Clean engine cooling fins blower screen and air cleaner Using wrong weight o...

Page 34: ...djustments Mower cut is rough looking Engine speed too slow Set throttle to FULL when mowing Ground speed too fast Decrease Ground Speed Blades are dull Sharpen or replace blades See Maintenance Section Mower drive belt slipping because it is oily or worn Clean or replace belt as necessary Blades not properly fastened to arbors See Check Replace Mower Blades in Maintenance Section Engine stalls ea...

Page 35: ... through the summer AERATING YOUR LAWN Consider aerating your lawn in spring Using an aerator to remove cores of soil from the lawn increases the speed of clipping decomposition and encourages deeper root growth by opening up the soil and permitting greater movement of water fertilizer and air TP 600 2136 03 UV SMA HOW HIGH TO MOW THE GRASS Cutting the grass too short causes weak thin grass plants...

Page 36: ...ulch when the grass is wet moist grass does not mulch well and clumps beneath the mower deck Note Always operate the engine at full throttle when mowing PROPER MOWING SPEED ENGINE SPEED GROUND SPEED Always operate the engine at full throttle when mowing If you hear the engine slowing down you are mowing too fast maintaining a slower ground speed will improve the cutting efficiency of the blades an...

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