Exmark LAZER Z HP 523 Operator's Manual
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Exmark LAZER Z HP 523 Operator's Manual

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LAZER Z
HP 523
®
For Serial Nos. 720,000 & Higher
Part No. 4500-257 Rev. A

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Summary of Contents for Exmark LAZER Z HP 523

  • Page 1 LAZER Z HP 523 ® For Serial Nos. 720,000 & Higher Part No. 4500-257 Rev. A...
  • Page 2 Replacements may be ordered through the engine manufacturer. Exmark reserves the right to make changes or add improvements to its products at any time without incurring any obligation to make such changes to products manufactured previously.

  • Page 3: Introduction

    All Exmark parts are thoroughly tested and inspected before leaving the factory, however, attention is required on your part if you are to obtain the fullest measure of satisfaction and performance.

  • Page 4: Table Of Contents

    Contents Deck Leveling ..........32 Pump Drive Belt Tension....... 32 Deck Belt Tension ........32 Introduction ............3 Brake Link Adjustment........32 Safety ..............5 Brake Adjustment.......... 33 Safety Alert Symbol ......... 5 Electric Clutch Adjustment......33 Safe Operating Practices ........5 Reverse Indicator Adjustment......

  • Page 5: Safety

    • Evaluate the terrain to determine what accessories ALERT! YOUR SAFETY IS INVOLVED! and attachments are needed to properly and safely perform the job. Only use accessories and attachments approved by Exmark. • Wear appropriate clothing including safety glasses, Figure 2 substantial footwear, long trousers, and hearing 1.
  • Page 6 Safety DANGER DANGER In certain conditions gasoline is extremely In certain conditions during fueling, static flammable and vapors are explosive. electricity can be released causing a spark which can ignite gasoline vapors. A fire or A fire or explosion from gasoline can burn explosion from gasoline can burn you and you, others, and cause property damage.
  • Page 7 Safety Operation damage and make repairs before restarting and operating the mower). WARNING – Before clearing blockages. – Whenever you leave the mower. Operating engine parts, especially the muffler, become extremely hot. Severe burns • Stop engine, wait for all moving parts to stop, and can occur on contact and debris, such as engage parking brake: leaves, grass, brush, etc.
  • Page 8 Safety • Watch for ditches, holes, rocks, dips and rises that DANGER change the operating angle, as rough terrain could overturn the machine. Operating on wet grass or steep slopes can cause sliding and loss of control. Wheels • Avoid sudden starts when mowing uphill because dropping over edges, ditches, steep banks, or the mower may tip backwards.

  • Page 9: Maintenance And Storage

    Safety Maintenance and Storage WARNING • Disengage drives, lower implement, set parking Hydraulic fluid escaping under pressure brake, stop engine and remove key or disconnect can penetrate skin and cause injury. Fluid spark plug wire. Wait for all movement to stop accidentally injected into the skin must be before adjusting, cleaning or repairing.

  • Page 10: Safety And Instructional Decals

    Exmark equipment dealer or labels. distributor or from Exmark Mfg. Co. Inc. • Replace all worn, damaged, or missing safety • Safety signs may be affixed by peeling off the signs.
  • Page 11 Safety 103–2644 1–633922 103–4892 1–653147 98-5954 103–4930...
  • Page 12 Safety 103–6340 107-2102 103–9287 107-2112...
  • Page 13 Safety 109-3148 109–1196 109–7949 103–4891 108–5995 1. Fast 2. Slow 3. Neutral 4. Reverse...

  • Page 14: Specifications

    Specifications Specifications Model Numbers Serial Nos: 720,000 and Higher LHP23KC523; LHP27KC523 Systems Operator Controls • Steering and Motion Control: Engine Note: Motion control levers are adjustable to • Engine Specifications: See your Engine Owner’s two heights. Manual – Separate levers, on each side of the console, •...

  • Page 15: Dimensions

    Specifications – Optional suspension seat: molded adjustable • Deck Drive: flip-up armrests. – Electric clutch mounted on vertical engine • Seat Safety Switch: Incorporated into the shaft. “B” Section belt (with self-tensioning Safety Interlock System. Time delay seat switch idler) direct from the engine. eliminates rough ground cut-outs.

  • Page 16: Torque Requirements

    Specifications Torque Requirements Overall Height: Roll Bar - Up Roll Bar - Down Bolt Location Torque 69.4 inches (176.3 cm) 51.3 inches (130.3 cm) Cutter Housing Spindle 140-145 ft-lb (190–197 N-m) Blade Mounting Bolt 55-60 ft-lb (75-81 N-m) Tread Width: (Center to Center of (lubricate with anti-seize) Tires, Widthwise) 30-35 ft-lb (41-47 N-m)

  • Page 17: Product Overview

    Operation Product Overview Operation Note: Determine the left and right sides of the machine from the normal operating position. Controls Motion Control Levers The motion control levers located on each side of the console control the forward and reverse motion of the machine.

  • Page 18: Pre-Start

    Operation The unit must be tied down and brake engaged when Drive wheel release valves are used to release the transporting. hydrostatic drive system to allow the machine to be pushed without the engine running. Unhook seat Ignition Switch latch and tilt seat up to gain access to pumps. With a 5/8 inch wrench, turn both valves one turn Located on right fuel tank.

  • Page 19: Operating Instructions

    Operation Open the Fuel Shut-Off Valve (13 mm) below the bottom of the filler neck to allow for fuel expansion and prevent fuel spillage. The fuel shut off valve is located in the fuel line Make sure you understand the controls, their beside the engine, near the fuel filter.

  • Page 20: Stopping The Engine

    Operation Driving the Machine DANGER CAUTION An uncovered discharge opening will allow objects to be thrown in an operator’s or Machine can spin very rapidly by positioning bystander’s direction. Also, contact with the one lever too much ahead of the other. blade could occur.

  • Page 21: Adjusting The Cutting Height

    Operation Adjusting the Cutting Height 3. To move forward in a straight line apply equal forward pressure to both levers. The cutting height of the mower deck is adjusted To turn left or right, pull the motion control lever from 1 1/2 inch to 4 1/2 inches (3.8 cm to 11.4 cm) back toward neutral in the direction desired.

  • Page 22: Transporting

    Operation Adjusting the Anti-Scalp Rollers It is recommended to change the anti-scalp roller position, when the height of cut has changed. 1. Stop the machine and move the motion control levers outward to the neutral locked position. 2. Disengage the PTO. 3.
  • Page 23 Operation Important: Do Not attempt to turn the unit WARNING while on the ramp, you may lose control and drive off the side. Loading a unit on a trailer or truck increases the possibility of backward tip-over. Avoid sudden acceleration when driving up a ramp Backward tip-over could cause serious injury and sudden deceleration when backing down a ramp.

  • Page 24: Maintenance

    Maintenance Maintenance Note: Determine the left and right sides of the machine from the normal operating position. WARNING WARNING While maintenance or adjustments are being The engine can become very hot. Touching made, someone could start the engine. a hot engine can cause severe burns. Accidental starting of the engine could Allow the engine to cool completely before seriously injure you or other bystanders.

  • Page 25: Periodic Maintenance

    Maintenance Maintenance Service Maintenance Procedure Interval • Check the wheel hub slotted nut torque specifications. Every 500 hours • Check the wheel lug nuts. Monthly • Check the battery charge. • Grease the front caster wheel hubs. • Grease front caster pivots. •...

  • Page 26: Check Mower Blades

    B. Install bushing/blade assembly into spindle. serious personal injury or death. Always install the original Exmark blades, blade bushings, and blade bolts as shown. Check Safety Interlock System...

  • Page 27: Check Rollover Protection System (Roll Bar) Pins

    Every 100 hours/Yearly Note: If machine does not pass any of these tests, (whichever comes first) do not operate. Contact your authorized EXMARK (May need more often SERVICE DEALER. under severe conditions.) Important: It is essential that operator safety 1.

  • Page 28: Check Hydraulic Oil Level

    Maintenance Remove plug from end of drain hose. Allow oil 5. Inflate drive tires to 13 psi (90 kPa). to drain and replace oil drain plug. Torque plug 6. Semi-pneumatic caster tires do not need to be to 20-24 ft-lb. inflated.

  • Page 29: Lubricate Caster Wheel Hubs

    6. Pack the bearings with a NGLI grade #1 multi-purpose grease. 7. Insert one bearing, one new seal into the wheel. Note: Seals (Exmark P/N 103-0063) must be Number 6 (Pump Drive Belt Idler Arm) Located replaced. Under Engine Frame-Grease through hole in top 8.

  • Page 30: Lubricate Brake Handle Pivot

    Note: Summer use above 32°F (0°C) use only (bushings are located to the inside of the flange Exmark Part No. 109–4180. bearings). Winter use below 32°F (0°C) use only Exmark Part No. 1-523541. Lubricate Motion Control 1. Stop engine, wait for all moving parts to stop, and remove key.

  • Page 31: Wheel Hub - Slotted Nut Torque Specification

    Maintenance Turn filter clockwise until rubber seal contacts the allows for normal fuel tank expansion and contraction filter adapter, then tighten the filter an additional with changes in temperature and fuel levels. 2/3 to 3/4 turn. 5. Fill reservoir as stated in Check Hydraulic Oil Thread Locking Adhesives Level section.

  • Page 32: Adjustments

    Maintenance Adjustments and all slack is removed from linkage. Do not lift front of deck off 1 1/8 inch (2.9 cm) block. Note: Disengage PTO, shut off engine, wait for Secure front swivel using locking nut in front of all moving parts to stop, engage parking brake, and swivel.

  • Page 33: Brake Adjustment

    Maintenance 1. Disengage brake lever (lever down). adjacent nyloc nut. Tighten the jam nut above the trunnion roller. 2. Measure the length of the spring. Measurement should be 2 3/4 inches (7.0 cm) between washers. 4. If adjustment is necessary, loosen the nut (Figure 15).

  • Page 34: Motion Control Linkage Adjustment

    Maintenance Motion Control Linkage Adjustment WARNING Engine must be running and drive wheels must be turning so motion control adjustment can be performed. Contact with moving parts or hot surfaces may cause personal injury Figure 16 1. Turn bolt here 5.

  • Page 35: Adjust Seat Switch

    Maintenance pressure to the lever allow the reverse indicator to properly set the pre-load on the bearings. If spring to bring the levers back to neutral. The disassembled, make sure the spring disc washers are wheel must stop turning or slightly creep in reinstalled as shown in Figure 18.

  • Page 36: Cleaning

    Maintenance Cleaning CAUTION Raising the mower deck for service or Clean Engine Cooling maintenance relying solely on mechanical System or hydraulic jacks could be dangerous. The mechanical or hydraulic jacks may not be Service Interval: Before each use or daily enough support or may malfunction allowing (May be required more the unit to fall, which could cause injury.

  • Page 37: Troubleshooting

    Troubleshooting Troubleshooting Important: It is essential that all operator safety mechanisms be connected and in proper operating condition prior to mower use. When a problem occurs, do not overlook the simple causes. For example: starting problems could be caused by an empty fuel tank. The following table lists some of the common causes of trouble.
  • Page 38 Troubleshooting Problem Possible Cause Corrective Action Engine overheats 1. Engine load is excessive 1. Reduce the ground speed. 2. Oil level in the crankcase is low. 2. Add oil to the crankcase. 3. Cooling fins and air passages for the 3.

  • Page 39: Schematics

    Schematics Schematics Electrical Diagram GREEN GREEN STRIPE GREEN/WHT WHITE BLACK BLACK BLACK BLACK BLACK GREEN BLACK GREEN BLACK STRIPE ORANGE/BLK GREY STRIPE GREEN/WHT YELLOW BROWN BLUE GREEN GREEN STRIPE PINK/BLK BROWN BLUE BLUE BLUE BLACK GREEN GREEN GREEN GREY BLUE BLUE G006774...

  • Page 40: Hydraulic Diagram

    Schematics Hydraulic Diagram HIGH PRESSURE HIGH PRESSURE REVERSE FORWARD BYPASS VALVE FRONT OF UNIT FILTER HYDRAULIC TANK BYPASS VALVE HIGH PRESSURE FORWARD HIGH PRESSURE CHARGE PUMP INLET HIGH PRESSURE REVERSE CASE DRAIN G006765...
  • Page 41 No Claim of breach of warranty shall be cause for cancellation included with the product. or rescission of the contract of sale of any Exmark mower. All warranty work must be performed by an authorized Some states do not allow exclusions of incidental or...

  • Page 42: Service Record

    Service Record Date: Description of Work Done: Service Done By:...
  • Page 44 SEE EXMARK’S COMPLETE LINE OF ACCESSORIES MID-MOUNT RIDING ACCESSORIES CUSTOM RIDE SEAT SUSPENSION SYSTEM ROLL OVER PROTECTION SYSTEM (ROPS) DECK LIFT ASSIST KIT SNOW BLADE HITCH KIT SUN SHADE LAZERLOCKER TRASH CONTAINER LIGHT KIT TURF STRIPER MICRO-MULCH SYSTEM ULTRA VAC COLLECTION SYSTEM...

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