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White Outdoor ZTT-1850 Operator'S Manual Download Page 11

11

Throttle Control Lever

The throttle lever is located on the right side of the 
tractor’s dash panel. This lever controls the speed of 
the engine and, on model  ZTT-1850, the choke control 
also. When set in a given position, the throttle will 
maintain a uniform engine speed. See Figure 4.

Figure 4

IMPORTANT:

 When operating the tractor with the cutting 

deck engaged, be certain that the throttle lever is 
always in the FAST (rabbit) position.

Ignition Switch

WARNING: 

Never leave a running

machine unattended. Always turn off blades/
PTO, move both control handles into neutral
position, set parking brake, stop engine and
remove key before dismounting

.

To start the engine, insert the key into the ignition 
switch and turn clockwise to the START position. 
Release the key into the ON position once engine has 
fired. See Figure 5. 

Figure 5

Refer to 

Starting The Engine

 on page 14 of this manual for 

detailed starting instructions

The ignition switch is also used to operate the tractor’s 
headlights. Refer to 

Operating The Headlights

 on page 17 

of this manual for detailed instructions.

Systems Indicator Monitor / Hour Meter

Your tractor is equipped with four indicator lights and an 
hour meter located on the left side of the dash panel. 
See Figure 6. 

Figure 6

If the Brake light or PTO light illuminates when 
attempting to start the unit, proceed as follows:

Brake — 

Engage the parking brake.

PTO — 

Move the PTO knob into the disengaged
(OFF) position.

It is normal for the Oil light and the Battery light to 
illuminate while the engine is cranking, but if either 
illuminates while the engine is running, proceed as 
follows:

Oil—

Stop the tractor immediately and check the
crankcase oil level as instructed in the
Briggs & Stratton Operator/Owner Manual
included. Add oil as required.

Battery—

If this light illuminate’s while the engine is
running, it indicates that the battery is in
need of a charge OR that the engine’s
charging system is not generating
sufficient amperage. Refer to 

Battery

 on

page 25 of this manual for the proper
battery charging procedure or have the
engine’s charging system checked by your
White Outdoor dealer.

The hour meter operates whenever the engine is 
running and records the actual hours of tractor 
operation.

Fast

Position

Slow

Position

Choke

Position

Fast

Position

Slow

Position

Off

On/Lights

On

Start

1/10

P

+

Battery

PTO

Oil

Brake

Hour

Meter

Summary of Contents for ZTT-1850

Page 1: ...gine s exhaust system is equipped with a spark arrester meeting applicable local or state laws if any If a spark arrester is used it should be maintained in effective working order by the operator In the State of California the above is required by law Section 4442 of the California Public Resources Code Other states may have similar laws Federal laws apply on federal lands A spark arrester for th...

Page 2: ...e information on the model plate is very important if you need help from your White Outdoor dealer You can locate the model number by looking beneath the seat A sample model plate is explained below For future reference please copy the model number and the serial number of the equipment in the space below CALLING CUSTOMER SUPPORT If you have difficulty assembling this product or have any questions...

Page 3: ...lan your mowing pattern to avoid discharge of material toward roads sidewalks bystanders and the like Also avoid discharging material against a wall or obstruction which may cause discharged material to ricochet back toward the operator 8 Always wear safety glasses or safety goggles during operation and while performing an adjustment or repair to protect your eyes Thrown objects which ricochet can...

Page 4: ...d overturn the machine Tall grass can hide obstacles 3 Use slow speed Tires may lose traction on slopes even though the brakes are functioning properly 4 Follow the manufacturer s recommendations for a counterweight for additional stability 5 Use extra care with grass catchers or other attachments These can change the stability of the machine 6 Keep all movement on the slopes slow and gradual Do n...

Page 5: ... indoors g Never remove gas cap or add fuel while the engine is hot or running Allow engine to cool at least two minutes before refueling h Never over fill fuel tank Fill tank to no more than inch below bottom of filler neck to allow space for fuel expansion i Replace gasoline cap and tighten securely j If gasoline is spilled wipe it off the engine and equipment Move unit to another area Wait 5 mi...

Page 6: ...R GRASS CATCHER IS IN ITS PROPER PLACE IF DAMAGED REPLACE IMMEDIATELY DO NOT OPERATE ON SLOPES OVER 10 AND TURN SLOWLY TO CONTROL TRACTOR STEERING MAX 10 WARNING KEEP HANDS AND FEET AWAY FROM ROTATING PARTS REMOVE OBJECTS THAT CAN BE THROWN BY THE BLADE IN ANY DIRECTION WEAR SAFETY GLASSES DO NOT MOW WHEN CHILDREN OR OTHERS ARE AROUND NEVER CARRY CHILDREN EVEN WITH BLADES OFF USE EXTRA CAUTION ON ...

Page 7: ...tion it rearward so that it is in the position closest to the operator e Move the throttle control lever into the FAST or CHOKE if so equipped position Otherwise pull out the Choke Control Knob if so equipped f Turn the Ignition Key clockwise to start the engine g Once the engine has warmed up move the Throttle Control Lever to a low RPM near the Turtle The rear tires of the ZTT both propel the la...

Page 8: ... O L D O N D O T T E D L I N E R E P R E S E N T I N G A 1 0 S L O P E Do not use the riding mower on inclines with a slope in excess of 10 degrees a rise of approximately 2 feet every 10 feet A riding mower could overturn and cause serious injury Operate RIDING mowers up and down slopes never across the face of slopes WARNING ...

Page 9: ...doors or while the engine is hot or running Extinguish cigarettes cigars pipes and other sources of ignition Service the engine with gasoline and oil as instructed in the separate Briggs Stratton Operator Owner Manual packed with your tractor Read instructions carefully IMPORTANT Your tractor is shipped with motor oil in the engine However you MUST check the oil level before operating Be careful n...

Page 10: ...tor s position A Right Control Handle H Adjustable Hand Rest B Left Control Handle I Throttle Control Lever C Electric PTO Power Take off Knob J Choke Control ZTT 2150 D Systems Indicator Monitor Hour Meter K Ignition Switch E Parking Brake Lever L Seat Adjustment Lever F Cup Holder M Deck Lift Lever G Hand Rest Bail G C H I J K B A D E L F M ...

Page 11: ...ystems Indicator Monitor Hour Meter Your tractor is equipped with four indicator lights and an hour meter located on the left side of the dash panel See Figure 6 Figure 6 If the Brake light or PTO light illuminates when attempting to start the unit proceed as follows Brake Engage the parking brake PTO Move the PTO knob into the disengaged OFF position It is normal for the Oil light and the Battery...

Page 12: ...utward Activating the choke control closes the choke plate on the carburetor and aids in starting the engine Refer to STARTING THE ENGINE on page 14 of this manual for detailed starting instructions ParkingBrakeLever The parking brake should be engaged when leaving the tractor unattended To do so grasp the parking brake lever found on the tractor s left fender and pull it toward the rear of the tr...

Page 13: ...erlock system will automatically disengage the electric PTO clutch and stop the blades if both control handles are simultaneously placed in position for REVERSE travel The safety interlock system will automatically shut off the tractor s engine if either control handle is placed in position for FORWARD or REVERSE travel with the parking brake engaged WARNING Do not operate the tractor if the inter...

Page 14: ...pplication Release the bail to lock the adjustable hand rest in place Driving the Tractor WARNING Always look down and behind before and while backing up to avoid a back over accident IMPORTANT For improved traction when a bagger or any other separately available rear attachment is not being used make certain that the rear weight is properly secured before operating the tractor The ZTT lawn tracto...

Page 15: ...15 Control Handle Position Reference Chart Reverse Right Neutral Reverse Left Rotate Left Forward Straight Forward Left Forward Right Rotate Right Reverse Straight ...

Page 16: ... Avoid turns when driving on a slope If a turn must be made turn down the slope Turning up a slope greatly increases the chance of a roll over Avoid stopping when driving up a slope If it is necessary to stop while driving up a slope start up smoothly and carefully to reduce the possibility of flipping the tractor over backward Using the Deck Lift Lever To raise the cutting deck move the deck lift...

Page 17: ... second time to get a clean cut Do NOT attempt to mow heavy brush and weeds and extremely tall grass Your tractor is designed to mow lawns NOT clear brush Keep the blades sharp and replace the blades when worn Refer to Cutting Blades on page 25 of this manual for proper blade sharpening instructions Operating the Headlights To turn the tractor s headlights on Start the engine following the instruc...

Page 18: ...en the two jam nuts on the rear side of the deck stabilizer bracket See Figure 12A Locate the two lock nuts on the opposite side of the stabilizer bracket See Figure 12A Tighten the lock nuts to raise the front of the deck loosen the lock nuts to lower the front of the deck Retighten the two jam nuts loosened earlier when proper adjustment is achieved Side to Side If the cutting deck appears to be...

Page 19: ... 100 percent level in all directions As a result of this and other factors e g control cable tension and transmission fluid temperature no amount of adjustment will result in a perfectly straight direction of travel with or without the control handles positioned directly opposite each other Locate the adjustment yoke on the left rear area of the lawn tractor See Figure 14 Loosen the jam nut found ...

Page 20: ... secure it in place Remount the tractor s wheel assembly and repeat the previous steps on the left side of the tractor IMPORTANT Be certain to torque the hex screw which secures the wheel assembly to the transmission to between 25 foot pounds and 42 foot pounds Re engage the parking brake and test it by attempting to push the tractor forward If the tractor s parking brake should need further adjus...

Page 21: ...lectrical components spindles pulleys bearings or the engine The use of water will result in a shortened life of the tractor and reduce its serviceability Lubrication WARNING Before lubricating repairing or inspecting always turn off blades PTO move both control handles into neutral position stop engine and remove key before dismounting Hydrostatic Transmissions Both hydrostatic transmissions are ...

Page 22: ...e themselves from the deck stabilizer rod Gently slide the cutting deck from the right side out from underneath the tractor Changing the Deck Belt s WARNING Be sure to shut the engine off remove ignition key disconnect the spark plug wire s and ground against the engine prior to removing the belt s All belts on your tractor are subject to wear and should be replaced if any signs of cracking are pr...

Page 23: ...ws beneath belt guard PTO Idler Bracket mounted on tractor NOTE Left hand belt cover not shown for clarity 46 inch Deck 42 inch Deck Electric PTO Clutch PTO Idler Bracket Left Hand Pulley Right Hand Pulley beneath belt guard Center Pulley Deck Idler Pulley Self Tapping Screws mounted on tractor NOTE Left hand belt cover not shown for clarity Deck belt Bottom PTO belt Top ...

Page 24: ...e orientation Looking at the tractor from the right side locate and carefully remove the extension spring which maintains tension on the drive belt s double idler pulley See Figure 23 Remove the belt from the double idler pulley Grasp the PTO idler pulley bracket and pivot it toward the discharge chute to relieve tension on the PTO belt Refer to Figure 20 and Figure 21 Remove the PTO belt from aro...

Page 25: ... to maintain proper blade balance A poorly balanced blade will cause excessive vibration and may cause damage to the tractor and result in personal injury Figure 26 The blade can be tested by balancing it on a round shaft screwdriver Grind metal from the heavy side until it balances evenly When replacing the blade be sure to install the blade with the side of the blade marked Bottom or with a part...

Page 26: ... The recommended operating tire pressure is approximately 14 psi for the rear tires and 35 psi for the front tires Refer to the tire sidewall for exact tire manufacturer s recommended or maximum psi Do not overinflate Uneven tire pressure could cause the cutting deck to mow unevenly SECTION 10 OFF SEASON STORAGE Clean and lubricate the tractor as instructed in Section 8 MAINTAINING YOUR LAWN TRACT...

Page 27: ...d weight of oil Clean grass clippings and debris from around the engine s cooling fins and blower housing Engine hesitates at high RPM Spark plug gap too close Remove spark plug s and reset the gap at 030 Idles poorly Spark plug fouled faulty or gap too wide Dirty air cleaner Replace spark plug s Set plug gap at 030 Replace air cleaner cartridge or clean pre cleaner if so equipped Excessive vibrat...

Page 28: ...ST 14 43 6 33 35 32 2 25 20 9 20 25 6 19 6 19 1 10 1 10 8 22 8 22 18 15 21 3 42 44 54 37 5 7 38 39 38 28 26 29 31 34 32 36 27 30 40 41 53 50 46 51 48 49 52 45 42 22 47 8 22 42 55 56 58 59 57 60 17 4 23 24 12 11 16 19 4 19 13 ...

Page 29: ...asher 1 010 x 2 0 x 065 36 737 0280 Grease Fitting 1 4 28 37 738 1011 Shoulder Screw 50 x 2 23 3 8 16 38 750 0456 Spacer 790 x 347 39 750 3197A Wheel Spacer 40 738 0143 Shoulder Screw 3 8 16 41 736 0331 Bell Washer 39 x 1 13 x 062 42 710 0604A Self tapping Screw 16 18 x 625 43 751 0603 Fuel Tank Cap fits both fuel tanks 44 751 0659A Fuel Tank Two gallon shown 751 0658B Fuel Tank Three gallon not s...

Page 30: ...56 65 78 79 80 67 49 66 31 70 68 70 31 69 62 85 86 61 63 5 36 72 76 4 73 74 77 81 64 71 28 31 38 37 33 31 31 46 31 44 31 43 35 34 40 32 31 29 30 2 16 9 17 6 3 15 24 27 19 13 31 5 18 4 14 8 10 20 21 12 22 20 10 1 23 8 17 21 11 14 7 26 41 87 88 9 75 53 45 42 84 83 89 82 90 ...

Page 31: ...r Grip 50 731 1989 Spacer 51 732 0499 Compression Spring 41 x 1 5 52 736 0175 Spring Washer 265 x 562 x 025 53 736 0204 Flat Washer 344 x 62 x 03 54 736 3019 Flat Washer 31 x 1 062 x 134 55 738 0137A Shoulder Screw 340 x 285 1 4 20 56 738 1007 Shoulder Screw 50 x 50 3 8 16 57 783 0611 Seat Stop 58 783 0738 Seat Pivot Bracket 59 783 0739 Seat Adjustment Lever 60 783 0753 Seat Adjustment Selector 61...

Page 32: ...2 Models ZTT 1850 ZTT 2150 6 30 32 35 24 27 4 12 2 5 8 17 39 21 9 11 37 23 38 25 27 4 22 14 10 20 3 13 34 29 28 Dash support portion shown for reference only 27 4 15 7 33 18 36 36 40 19 15 1 35 31 26 16 ...

Page 33: ...Foam Grip 22 720 0322 Dipped Cap 187 23 725 1760 Spring Switch 24 725 1773 Short Spring Switch 25 725 1980 Lever Spring Switch 26 726 0209 Cable Tie 27 726 0320 Insulator Nut Plate 28 727 3113 Damper Cylinder 29 732 0568 Extension Spring 50 x 2 54 30 736 0169 Lock Washer 3 8 31 736 0349 Flat Washer 63 x 1 0 x 020 32 736 3004 Flat Washer 406 x 875 x 105 33 783 1265 Clamp Cable Bracket 34 738 0255 S...

Page 34: ... 22 29 19 40 7 12 34 42 9 9 20 9 32 19 6 23 43 14 26 30 28 36 5 39 14 38 27 24 17 35 15 17 11 40 Hook spring Ref 21 here 21 10 31 37 13 8 20 15 33 18 41 44 Support plate shown for reference only Hook spring Ref 23 here 2 1 Models ZTT 1850 ZTT 2150 ...

Page 35: ... Flat Washer 344 x 688 x 065 28 736 3010 Flat Washer 407 x 812 x 135 29 738 0141 Shoulder Screw 435 x 350 5 16 18 30 738 0372 Shoulder Spacer 380 31 738 1155 Rod 312 x 18 437 32 741 3065A Split Hex Flange Bearing 628 33 747 1222 Hydro Bypass Rod 34 747 1263A Brake Link Rod 35 756 0978A Engine Pulley 36 750 0535 Spacer 376 x 625 x 220 37 750 1286 Spacer 334 x 50 x 14 88 38 754 0491 Drive Belt Poly ...

Page 36: ...1850 ZTT 2150 8 25 25 8 26 6 16 15 12 10 13 11 9 5 1 7 14 27 27 19 4 19 4 26 16 7 8 28 28 29 29 30 31 17 17 3 2 18 7 32 7 20 22 23 21 24 33 34 35 33 34 35 5 Units Equipped w 46 inch Deck Units Equipped w 42 inch Deck ...

Page 37: ... 62 24 738 3056 Shoulder Screw 1 2 x 2 5 25 710 3025 Hex Cap Screw 5 16 18 x 625 26 783 1003 Electric Clutch Anti rotation Bracket 27 783 0653D Steering Support Bracket 28 683 0314 Frame Assembly 29 717 1708 Electric PTO Clutch 30 754 0497 PTO Belt 42 inch Decks 31 754 0474 PTO Belt 46 inch Decks 32 710 0859 Hex Cap Screw 3 8 16 x 2 5 33 738 0785 Shoulder Spacer 1 38 x 445 x 36 34 736 0171 Lock Wa...

Page 38: ...38 Model ZTT 1850 12 34 20 38 20 34 31 42 15 41 5 17 26 10 39 37 6 2 24 8 21 29 7 17 22 32 23 25 36 15 30 13 28 27 33 19 18 1 9 11 14 35 18 16 3 40 9 4 43 ...

Page 39: ...75 26 732 0470A Extension Spring 50 x 4 74 27 734 0973 Deck Wheel 5 x 1 38 28 736 0105 Bell Washer 401 x 87 x 063 29 736 0119 Lock Washer 5 16 30 736 0158 Lock Washer 5 8 31 736 0162 Flat Washer 64 x 1 0 x 12 32 736 0270 Bell Washer 265 x 75 x 062 33 738 0373 Shoulder Screw 498 x 1 53 34 741 0524 Bearing 625 x 1 574 x 470 35 742 0616 Three in one Blade Star Center 21 23 36 747 1116 Deck Release Pi...

Page 40: ...40 Model ZTT 2150 12 12 39 40 19 4 4 41 3 38 20 32 24 25 27 9 20 32 19 33 28 8 22 26 37 5 23 31 11 10 17 6 7 32 21 14 13 16 2 2 13 43 42 19 30 34 29 15 21 1 15 17 18 18 18 35 35 36 44 ...

Page 41: ...712 3027 Hex Flange Lock Nut 1 4 20 22 714 0470 Cotter Pin 1 8 x 1 25 23 717 1553A Deck Adjustment Gear 24 726 0233 Push Nut 25 x 5 25 731 1032B Side Discharge Chute Assembly 26 732 0306 Compression Spring 406 x 531 x 1 75 27 732 0594A Extension Spring 91 x 7 3 28 783 0139A Idler Bracket 29 734 0973 Deck Wheel 5 x 1 38 30 736 0105 Bell Washer 401 x 87 x 063 31 736 0119 Lock Washer 5 16 32 736 0270...

Page 42: ...us Twin 9 7 11 for choke 13 4 12 for throttle 6 9 22 18 19 20 8 10 14 10 5 10 5 16 15 1 deflector must face forward 17 5 24 3 2 21 23 Briggs Stratton Industrial Plus Single 18 19 20 27 31 4 25 6 29 3 2 14 1 deflector must face forward 10 5 28 30 26 21 9 13 9 ...

Page 43: ...Valve 19 751 3141 Oil Drain Hose 20 751 3142 Oil Drain Cap 21 783 0615 Muffler Heat Shield 22 783 0625B Engine Heat Shield 23 722 0263 Foam fits over fuel line 24 746 1086 Throttle Cable Industrial Plus Twin 25 746 1084 Throttle Choke Cable Industrial Plus Single 26 751 0619 Exhaust Pipe Industrial Plus Single 27 751B213146 Casing Clamp 28 751 0617 Muffler Single Inlet 29 712 0271 Hex Sems Nut 1 4...

Page 44: ...44 Models ZTT 1850 ZTT 2150 3 1 18 17 16 6 15 20 23 7 14 12 22 21 9 19 5 2 11 25 10 24 8 4 13 ...

Page 45: ...16 x 625 10 712 0271 Hex Sems Nut 1 4 20 11 712 3006 Hex Nut 1 4 20 12 725 1303 Outer Seat Spring Switch 13 725 1426 12V Solenoid 100 Amp 14 725 1439 Inner Seat Spring Switch 15 725 1716 Electric PTO Switch 16 725 1741 Ignition Swicth 17 725 1744 Ignition Key 18 725 1745 Ignition Key w Plastic Cover 19 725 1774 Parking Brake Switch Spring 20 725 1976 Systems Indicator Monitor Hour Meter 21 725 322...

Page 46: ... x 8 0 Turf Grip 2 710 0180 Hex Cap Screw 3 8 24 x 75 3 731 2290A Hub Cap 4 736 0356 Bell Washer 391 x 1 38 x 062 5 736 0372 Flat Washer 410 x 1 59 x 062 6 710 0604A Self tapping Screw 16 18 x 625 7 783 1069 Cable Bracket 8 748 0452 Control Yoke 9 711 1601 Clevis Pin 3125 x 81 10 714 0104 Internal Cotter Pin 5 16 11 726 0272 Clamp 9 16 4 5 2 3 1 6 7 11 8 9 10 Models ZTT 1850 ZTT 2150 ...

Page 47: ...47 Models ZTT 1850 ZTT 2150 ...

Page 48: ...n these items b Routine maintenance items such as lubricants filters blade sharpening and tune ups or adjustments such as brake adjustments clutch adjustments or deck adjustments and normal deterioration of the exterior finish due to use or exposure c Log splitter pumps valves and cylinders have a sepa rate one year warranty d White Outdoor Co does not extend any warranty for products sold or expo...

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