Gravely ZT 2552HD Owner's/Operator's Manual
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Gravely ZT 2552HD Owner's/Operator's Manual

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ZT HD
Owner/Operator Manual
ENGLISH
Models
991037 – ZT 2552HD
991038 – ZT 2760HD
991041 – ZT 2660HD
991050 – ZT 2444HD
991051 – ZT 2648HD
03253200A 5/08
Printed in USA

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Summary of Contents for Gravely ZT 2552HD

  • Page 1 ZT HD Owner/Operator Manual Models 991037 – ZT 2552HD 991038 – ZT 2760HD 991041 – ZT 2660HD 991050 – ZT 2444HD 991051 – ZT 2648HD 03253200A 5/08 ENGLISH Printed in USA...

  • Page 2: Table Of Contents

    English are also available as a position and facing the direction of forward free download on our website: travel. http://www.gravely.com SERVICE AND REPLACEMENT PARTS MANUALES EN IDIOMAS When ordering publications, replacement DIFERENTES DEL INGLES...
  • Page 3 (Off). Engine must stop if operator PRODUCT REGISTRATION leaves seat when steering levers are in any drive position or PTO is engaged The Gravely dealer must register the product (On). See Safety Interlock System on at the time of purchase. Registering the page 12.

  • Page 4: Safety

    SAFETY WARNING: This cutting machine WARNING: POTENTIALLY is capable of amputating hands HAZARDOUS SITUATION! If not and feet and throwing objects. avoided, COULD RESULT in Failure to observe the safety death or serious injury. instructions in the manuals and on decals could result in serious injury or death.
  • Page 5 OF1625 Figure 2 1. DANGER! TO AVOID SERIOUS Go up and down slopes, not across. INJURY OR DEATH DO NOT operate on slopes Read Owner/Operator Manual. over 10°. OL4450 • If machine stops going uphill, stop blade and back down slowly. OL1801 •...

  • Page 6: Safety Rules

    Shut off engine, remove key, Complete a walk around inspection of unit read manual before you adjust and work area to understand: or repair unit. • Work area • Your unit • All safety decals Determine which attachments are needed and can be used safely.
  • Page 7 NEVER wear open sandals or canvas shoes Dust, smoke, fog, etc. can reduce vision and during operation. Wear adequate safety gear, cause an accident. Mow only in daylight or protective gloves and footwear. good artificial light. Wear proper footwear to improve footing on Avoid slippery surfaces.
  • Page 8 Do not operate on slopes over 10° NO smoking, NO sparks, NO flames. ALWAYS allow engine to cool before maximum. servicing. Use of a Rollover Protection System (ROPS) NEVER fill fuel tank when engine is running is recommended for slope operation. See or hot from operation.

  • Page 9: Assembly

    ALWAYS block wheels and know all jack Shut off fuel and allow engine to cool stands are strong and secure and will hold completely before storing in closed area or weight of unit during maintenance. covering unit. Release pressure slowly from components Clean grass and debris from unit, especially with stored energy.
  • Page 10 7. Check Engine Crankcase - Check and add oil if needed. See Engine Manual for specifications. 8. Fill Engine Fuel Tank - Add clean fuel to the fuel tank. IMPORTANT: Refer to Engine Manual for fuel type. 9. Hardware - Check for loose hardware. 10.

  • Page 11: Controls And Features

    CONTROLS AND FEATURES OF4035 OF4095 OM4090 OM4085 Figure 4 1. Fuel Tanks and Caps 9. Battery 2. Steering Levers 10. Fuel Shut Off Valve 3. Hydraulic Oil Reservoir 11. Mower Lift Pedal 4. Ignition Switch 12. Mower Deck 5. Hour Meter 13.

  • Page 12: Operation

    D. To turn right, pull the right back or your Gravely dealer for repairs. push the left steering control lever NOTE: When the parking brake is engaged, forward or a combination of both.
  • Page 13 Choke Control Mower Lift Pedal Push the choke lever forward to start a cold engine. Pull the choke OF1700 lever to the rear when the engine gets warm. OF1680 Mower lift pedal raises and lowers mower deck for mowing or transport. Transport: Throttle Lever Push mower lift pedal all the way forward until...
  • Page 14 Hour Meter 4. Check Tire Pressure Records total number of 5. Check Hydraulic Fluid Level hours the engine has 6. Adjust Seat been run. Be sure all controls can be reached safely IMPORTANT: Keep a from operator’s position. record of Hour Meter readings for 7.
  • Page 15 TO MOW WITH UNIT 6. Engage parking brake. 7. Push the right and left bypass levers to Operate the unit only when seated in the the drive position. operator’s position. 1. Start the engine. Let the engine warm until it is running smoothly. 2.

  • Page 16: Maintenance Schedule

    FOR BEST PERFORMANCE Mow with the engine set at full throttle. When mulching, only remove 1/3 of grass Cut grass when it is dry. length per cutting. Do not cut more than 1 Keep mower blades sharp. inch (2.54 cm) at any one time. Keep mower deck properly levelled.

  • Page 17: Service And Adjustments

    1. Place unit on a flat level surface. peak efficiency. Should engine service be ALWAYS stop engine. Ensure unit is required, it can be obtained from a Gravely secure and will not tip over. Strap and Dealer or the engine manufacturer’s clamp onto lift if used.

  • Page 18: Hydraulic Fluid

    Check Hydraulic Fluid Level Check the system with the unit cold and parked on a flat, level surface. Then run the unit for about one minute and recheck the levels. To Add Hydraulic Fluid: 1. Remove the cap from the expansion tank.
  • Page 19 6. Install the filter guards removed in 4. Stop the engine and put the transaxle step 2. Tighten the mounting screws to bypass levers in the drive position. See 65 lbf-in (7.3 N•m). Moving the Unit with the Engine Off on page 15.
  • Page 20 3. Check mower blade balance. Slide mower blade on an unthreaded bolt. A balanced blade should remain in a horizontal position. If either end of mower blade moves downward, sharpen the heavy end until blade is balanced. 4. Install mower blade(s) on unit. 5.
  • Page 21 BATTERY WARNING: AVOID INJURY. Read and understand entire Safety section before proceeding. WARNING: Battery posts, terminals and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling. OF1671 Unit comes equipped with a maintenance- free battery that requires no regular...
  • Page 22 Then return steering levers to neutral position. Jump-Starting 6. Check wheel(s) for movement. Gravely does not recommend jump-starting NOTE: The right and left hydraulic pumps are your unit. Jump-starting can damage engine adjusted the same way. and electrical system components. See your 7.
  • Page 23 Aligning the Steering Levers ADJUSTING THE UNIT TO TRACK (Figure 14) STRAIGHT 1. Shut OFF engine. Engage parking brake. Remove the ignition key. WARNING: Prior to adjusting the 2. Place seat in the service position (See tracking of the unit, shut OFF Service Position on page 17).

  • Page 24: Adjusting Height Of Steering Lever Handles

    ADJUSTING THE HEIGHT OF THE 1. Engage parking brake and set both transmission bypass valves to the STEERING LEVER HANDLES neutral position. See Moving the Unit The handles have three height positions with the Engine Off on page 15. (Figure 16). 2.
  • Page 25 PTO Belt Access 4. Remove short mower belt from right blade spindle and from deck. Idler pivot 1. Properly stop and park unit (See bolt must be loosened slightly to gain Operation on page 12). clearance to remove belt from under 2.
  • Page 26 5. Install new hydro pump belt by NOTE: There are four anti-scalp rollers on positioning belt on sheaves. Put belt the outside of the mower deck and four anti- onto right hand hydrostat sheave last. scalp rollers on the inside of the mower deck. Make sure all anti-scalp rollers are set at the 6.
  • Page 27 4. Remove the mower mounting pins Leveling the Mower Deck connecting the mower mounting arms to These adjustments should be made on a the deck. level surface with the tires inflated to the 5. Slide mower deck out from under unit. correct air pressure.

  • Page 28: Storage

    Adjust Blade Height Blade Side-to-Side Level Level and pitch the mower with the height adjusters on each deck lift bracket (Figure 24). Loosen the jam nut on the deck lift bracket bolt about 1/4 turn to reduce clamp load on the height adjusters. Loosen the jam nut on the deck adjuster bolt and then turn the bolt clockwise to Left...

  • Page 29: Accessories

    LONG TERM ACCESSORIES Clean unit thoroughly with mild soap and low pressure water and lubricate (See Lubricate Part No. Description Unit on page 22 in Maintenance). Touch up 79100300 Mulching Kit (991050) all scratched painted surfaces. 79100400 Mulching Kit (991051) Remove weight from wheels by putting blocks under frame or axle.

  • Page 30: Specifications

    SPECIFICATIONS Model Number 991037 991038 991041 Model ZT 2552HD ZT 2760HD ZT 2660HD Engine Engine Kohler Courage Kohler Courage Briggs & Stratton Engine Model Number Engine Power – hp (kW) at 25 (18.6) 27 (20.1) 26 (19.4) Maximum RPM Governed RPM (May be...
  • Page 31 SPECIFICATIONS Model Number 991050 991051 Model ZT 2444HD ZT 2648HD Engine Engine Briggs & Stratton ELS Briggs & Stratton ELS Engine Model Number Engine Power – hp (kW) at 24 (17.9) 26 (19.4) Maximum RPM Governed RPM (May be different 3600 +/- 100 from maximum RPM) Liquid or Air Cooled...

  • Page 32: Warranty

    Genuine Ariens or Gravely brand service parts and accessories are warranted to be free from defects in material and workmanship for a period of 90 days after the date of purchase. An authorized Ariens or Gravely dealer will repair or replace any such part or accessory free of charge, except for labor, during that period.
  • Page 33 Eye-Q™ and Scan-Mate™ units are covered by their own warranty and are not covered by this warranty. • Parts that are not genuine Ariens or Gravely service parts are not covered by this warranty. • The following maintenance, service and replacement items are not covered by this warranty unless...
  • Page 34 GRAVELY 655 West Ryan Street Brillion, WI 54110-1072 920-756-2141 Fax 920-756-2407 www.gravely.com WARNING The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.

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