LAZER Z LPG MODELS ® For Serial Nos. 850,000 & Higher Lazer Z (LP Units) Part No. 4500-645 Rev.
Important: The engine in this product is not equipped with a spark arrester muffler. It is a violation of California Public Resource Code (CPRC) Section 4442 to use or operate this engine on any forest-covered, brush-covered, or grass-covered land as defined in CPRC 4126. Other states or federal areas may have similar laws. To acquire a spark arrester for your unit, see your Engine Service Dealer.
Introduction CONGRATULATIONS on the purchase of your Exmark Mower. This product has been carefully designed and manufactured to give you a maximum amount of dependability and years of trouble-free operation. This manual contains operating, maintenance, adjustment, and safety instructions for your Exmark mower. BEFORE OPERATING YOUR MOWER, CAREFULLY READ THIS MANUAL IN ITS ENTIRETY.
Contents Adjusting the Parking Brake........................... 45 Electric Clutch Adjustment............................ 46 Motion Control Linkage Adjustment ............. 48 Motion Control Damper Adjustment............. 49 Motion Control Neutral Lock Pivot Adjustment ............................................... 49 Motion Control Handle Adjustment .............. 49 Motion Control Full Forward Tracking Adjustment ...............................................
Safety Safety The LPG information in this Operator’s manual is provided only as a guide. Consult the NFPA 58: Liquefied Petroleum Gas Code, 2008 Edition for additional safety information. This National Fire Protection Association (NFPA) code pertains to the handling, storing, transporting, and usage of LPG. Safety Alert Symbol This Safety Alert Symbol (Figure 2) is used both in this manual and on the machine to identify important safety messages which must be followed to avoid accidents.
Safety CAUTION DANGER This machine produces sound levels in excess of 85 dBA at the operator’s ear and can cause hearing loss through extended periods of exposure. LPG fuel is extremely flammable and vapors are explosive. Wear hearing protection when operating this machine. • Never smoke around tank(s) and stay away from an open flame or where fumes may be ignited by a spark. A fire or explosion from LPG fuel can burn you, others, and cause property damage.
Safety DANGER DANGER LPG fuel is extremely flammable and vapors are explosive. LPG vapors and liquid escaping from the tank may cause serious injury or death. Vapors or liquid may cause suffocation, freezing of tissue, or frostbite. • In case of fire take the following steps: 1. If you can safely do so, stop the flow of gas as quickly as possible. Never put out flame unless gas can be shut off. • Store and service the mower in a well ventilated area. 2.
Safety – The LPG tank should be free of dents or damage. If the tank show signs of dents or damage, replace it immediately. so, remove the tank from your mower; otherwise, contact trained and qualified personnel immediately. – Check the valve and fitting openings for dirt and debris. ◊ If no bubbles are detected, the LPG tank may be used. – Slowly open the valve all the way and listen for a continuous hiss from the regulator, it may indicate a leak.
Safety WARNING WARNING Engine exhaust contains carbon monoxide, which is an odorless deadly poison that can kill you. Hands, feet, hair, clothing, or accessories can become entangled in rotating parts. Contact with the rotating parts can cause traumatic amputation or severe lacerations. Do Not run engine indoors or in a small confined area where dangerous carbon monoxide fumes can collect. • Do Not operate the machine without guards, shields, and safety devices in place and working properly.
Safety • Watch for ditches, holes, rocks, dips and rises that change the operating angle, as rough terrain could overturn the machine. DANGER Operating on wet grass or steep slopes can cause sliding and loss of control. Wheels dropping over edges, ditches, steep banks, or water can cause rollovers, which may result in serious injury, death or drowning. • Avoid sudden starts when mowing uphill because the mower may tip backwards.
Safety driving under any objects and Do Not contact them. • Disconnect battery or remove spark plug wire before making any repairs. Disconnect the negative terminal first and the positive last. Reconnect positive first and negative last. • In the event of a rollover, take the unit to an Authorized Service Dealer to have the ROPS inspected. • Use care when checking blades. Wrap the blade(s) or wear gloves, and use caution when servicing them. Only replace damaged blades. Never straighten or weld them.
Safety CAUTION WARNING If the ignition is in the “ON” position there is potential for sparks and engagement of components. Sparks could cause an explosion or moving parts could accidentally engage causing personal injury. Hydraulic fluid escaping under pressure can penetrate skin and cause injury. Fluid accidentally injected into the skin must be surgically removed within a few hours by a doctor familiar with this form of injury or gangrene may result.
Safety Safety and Instructional Decals • Keep all safety signs legible. Remove all grease, dirt and debris from safety signs and instructional labels. • Replace all worn, damaged, or missing safety signs. • When replacement components are installed, be sure that current safety signs are affixed to the replaced components. • If an attachment or accessory has been installed, make sure current safety signs are visible.
Safety 109-3148 109-7232 1. Fast 2. Slow 3. Neutral 4.
Safety 116-0157 1.
Safety 117-2718 116-0752 1. Latch 2. Unlatch Hour Message Display 1. Hour Meter 2. PTO 116-1714 3. Parking Brake 4. Neutral 5. Operator’s presence switch 6. Battery 116-2643 PTO Switch Symbols 1. PTO–disengage 116-3261 1. Throttle - fast 2. Throttle - slow 16 2.
Safety 109-7069 109-9906 17
Specifications Specifications Model Numbers Serial Nos: 850,000 and Higher LZAS29KA604LP; LZAS29KA724LP; LZZ29KA606LP Systems and prevent the engine from operating. This may also result in permanent fuel system damage and the release of highly flammable propane liquid or vapor.
Specifications • • • • • • Note: Motion control levers are adjustable to two heights. – Separate levers, on each side of the console, control speed and direction of travel of the respective drive wheels. – Steering is controlled by varying the position of the levers relative to each other. – Moving motion control levers outward (in slots) locks the drive system in neutral. PTO Engagement Switch: Engages electric clutch (to drive belt) which engages mower blades. Parking Brake Lever: Engages parking brake.
Specifications Tires & Wheels protection. Deck design allows for bagging, mulching or side discharge. Drive – 60 inch Deck: 4 anti-scalp rollers Pneumatic (Air filled) – 72 inch Deck: 4 anti-scalp rollers Quantity 2 Tread “Multi-Trac C/S” Size 24 x 12.00-12 – 60 inch Deck: 5.5 inches (14 cm) Ply Rating 4 – 72 inch Deck: 5.5 inches (14 cm) Pressure 13 psi (90 kPa) • Deck Depth: • Cutting Height Adjustment: Foot activated lever is used to adjust the cutting height from 1 inch (2.
Specifications Accessory Weight Table Worksheet: Tread Width: (Center to Center of Tires, Widthwise) 60 inch Deck 72 inch Deck Drive Wheels 41.6 inches (105.7 cm) 43.6 inches (110.7 cm) Caster Wheels 39.5 inches (100.3 cm) 47.1 inches (119.6 cm) Use the table below to determine if extra weight is required for the unit. Identify the accessories and correct deck size and place the corresponding values in the Accessory Score column.
Product Overview Torque Requirements Bolt Location Product Overview Torque Blade Drive Sheave Mounting Nut LZZ-LP Units: 90-110 ft-lb (122-149 N-m) LZAS-LP Units: 140-145 ft-lb (190-197 N-m) Cutter Housing Spindle 160-185 ft-lb Nut (LZZ-LP Units Only) (217-251 N-m) Blade Mounting Bolt (lubricate with anti-seize) Anti-Scalp Roller Hex Capscrew 55-60 ft-lb (75-81 N-m) LZZ-LP Units: See Figure 18 50-55 ft-lb (68-75 N-m) Figure 4 Anti-Scalp Roller Nyloc Nut LZZ-LP Units: See Figure 18 LZAS-LP Units:
Operation Operation The throttle is used to control engine speed. Moving the throttle lever forward will increase engine speed and moving the throttle lever to the rear will decrease engine speed. Moving the throttle forward into the detent is full throttle. 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.
Operation Figure 7 1. Release button 2. Park brake Figure 9 The unit must be tied down and brake engaged when transporting. 1. LCD Indicators 2. Low voltage indicator light 3. Hour/Voltage display Ignition Switch The hour meter is recording when the decimal point is flashing in Hour/Voltage display. Located on right console (see Figure 6). The ignition switch is used to start and stop the engine. The switch has three positions “OFF”, “ON” and “START”.
Operation Important: This valve has a protective plastic cap that should NEVER be removed. If the cap is damaged or missing, contact trained and qualified personnel immediately. To release the drive system (see item 1 in Figure 10), rotate the handle 1/4 turn to the vertical position until it hits against the stop. To reset the drive system (see item 2 in Figure 10), rotate the handle 1/4 turn to the horizontal position until it hits against the stop.
Operation In the non-latching position, the deck will automatically return to the cutting height when the pedal is lowered (see item 3 in Figure 11). 4. To return to the operate position, raise the roll bar, and then rotate knobs 90° so that the tabs interlock partially. Apply forward pressure to the roll bar upper hoop and observe that the knobs return to the completely latched position. Figure 11 1. Latching position 2. Transport lock control 3.
Operation that the rear part of the seat is secured with the seat latch. DANGER An uncovered discharge opening will allow objects to be thrown in an operator’s or bystander’s direction. Also, contact with the blade could occur. Thrown objects or blade contact can cause serious injury or death. Open the Fuel Valve 1. Slowly open the fuel valve to equalize the pressure in the tank. The fuel valve is located on the top end of the LPG tank.
Operation Driving the Machine CAUTION Machine can spin very rapidly by positioning one lever too much ahead of the other. Operator may lose control of the machine, which may cause damage to the machine or injury. • Use caution when making turns. • Slow the machine down before making sharp turns. Important: To begin movement (forward or backward) the operator must be in the seat, the brake lever must be disengaged (pushed down) before the motion control levers can be moved in or the engine will stop.
Operation Driving in Reverse 1. Move the motion control levers inward to the neutral operate position. 2. To move rearward in a straight line, move both levers rearward with equal pressure. 5. Insert the height adjustment pin into the hole corresponding to the desired cutting height. See the decal on the side of the deck lift plate for cut heights. 6. Push the deck lift pedal, release the transport lock and allow the deck to lower to the cutting height.
Operation 1/4 inch (6.4 mm) clearance to the ground. Do Not adjust the rollers to support the deck. 7. For LZZ-LP Units: Be sure the roller bolts are installed with the spring disc washer between the head of the bolt and the mounting bracket (Figure 18). For LZAS-LP Units: Be sure the whizlock nuts are installed with the spring disc washer between the head of the nut and the mounting bracket (Figure 19).
Operation tipping, or physical damage relative to other tanks or to the storage cage while in transit. WARNING Loading a unit on a trailer or truck increases the possibility of backward tip-over. Backward tip-over could cause serious injury or death. – Place tanks so that valves, fittings, or gauges are protected from physical damage during transport. • Place tank(s) in a well-ventilated trailer. • Use extreme caution when operating a unit on a ramp.
Operation Avoid sudden acceleration when driving up a ramp and sudden deceleration when backing down a ramp. Both maneuvers can cause the unit to tip backward.
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 made, someone could start the engine. Accidental starting of the engine could seriously injure you or other bystanders. The engine can become very hot. Touching a hot engine can cause severe burns. Allow the engine to cool completely before service or making repairs around the engine area.
Maintenance Maintenance Service Interval Every 500 hours Yearly Maintenance Procedure • Replace the secondary air cleaner element (May need more often under severe conditions. See the Engine Owner’s Manual for additional information.) • Change the hydraulic filter and fluid. • Check the wheel hub slotted nut torque specifications. • Check the wheel lug nuts. • Check the park brake adjustment. • Grease the deck and pump idler pivots. • Grease the front caster pivots.
Maintenance Voltage Reading Percent Charge Maximum Charger Settings 11.7–12.0 0–25% 14.4 volts/4 3 Hours amps 11.7 or less 0% 14.4 volts/2 6 Hours or More amps Charging Interval CAUTION Connecting the jumper cables incorrectly (wrong polarity) can immediately damage the electrical system. Be certain of battery terminal polarity and jumper cable polarity when hooking up batteries. Recommended Jump Starting Procedure Note: The following instructions are adapted from the SAE J1494 Rev. Dec.
Maintenance Figure 21 Figure 20 1. 2. 3. 4. 5. 6. 7. 1. Install bushing in blade prior to installing bushing in spindle. Positive (+) cable on discharged battery Positive (+) cable on booster battery Negative (–) cable on the booster battery Negative (–) cable on the engine block Booster battery Discharged battery Engine block B. Install bushing/blade assembly into spindle. Make sure the splines on the bushing are engaged in the spindle before tightening the bolt. 4.
Maintenance one second has elapsed if the handles are in. The delay will be 1/2 second if the handles are out. WARNING Incorrect installation of the blade or components used to retain the blade can be dangerous. Failure to use all original components and assembled as shown could allow a blade or blade component to be thrown out from under the deck resulting in serious personal injury or death.
Maintenance Check Seat Belt 1. Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake. Service Interval: Before each use or daily 2. Drain oil while engine is warm from operation. Visually inspect seat belt for wear, cuts, and proper operation of retractor and buckle. Replace before operating if damaged. 3. The oil drain hose is located on right hand side of engine at the rear. Place pan under machine to catch oil. Remove plug from end of drain hose.
Maintenance Note: No adjustments are required for belt tension. Lubricate Grease Fittings Note: See chart for service intervals. 1. Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake. 2. Lubricate fittings with one to two pumps of NGLI grade #2 multi-purpose gun grease. Refer to the following chart for fitting locations and lubrication schedule. Figure 24 1. Full 2.
Maintenance 13. Torque the nut to 75-80 in-lb (8-9 N-m), loosen, then re-torque to 20-25 in-lb (2-3 N-m). Make sure axle does not extend beyond either nut. 14. Reinstall the seal guards over the wheel hub and insert wheel into caster fork. Reinstall caster bolt and tighten nut fully. Important: To prevent seal and bearing damage, check the bearing adjustment often. Spin the caster tire. The tire should not spin freely (more than 1 or 2 revolutions) or have any side play.
Maintenance Check the entire LPG fuel delivery system for damage or deterioration. Follow all the inspection checks as specified in the Inspection section in Safety. Change LPG Tank Service Interval: As required Change the LPG tank outdoors in a well ventilated area. 1. Stop the machine on level ground, disengage the PTO, and engage the parking brake. 2. Close the fuel valve on the tank. Figure 26 3.
Maintenance Changing oil unnecessarily could damage hydraulic system by introducing contaminants into the system. CAUTION Raising the mower deck for service or maintenance relying solely on mechanical or hydraulic jacks could be dangerous. The mechanical or hydraulic jacks may not be enough support or may malfunction allowing the unit to fall, which could cause injury.
Maintenance Adjustments 6. Insert the height adjustment pin into the 3 inch (7.6 cm) cutting height location. Note: Disengage PTO, shut off engine, wait for all moving parts to stop, engage parking brake, and remove key before servicing, cleaning, or making any adjustments to the unit. 7. Release the transport lock and allow the deck to lower to the cutting height. 8. Raise the discharge deflector. 9. Measure from the level surface to the front tip of the center blade.
Maintenance 14. If the four deck links do not have enough adjustment to achieve accurate cut height with the desired rake, the single point adjustment can be utilized to gain more adjustment (see Figure 31). Figure 29 1. Adjuster link 2. Jam nut 3. Adjuster Figure 31 For LZAS-LP Units: Loosen the whizlock nut on the side of the yoke and the jam nut on top. Fine tune the screw adjuster by turning it to get 3 inch (7.6 mm) height (see Figure 30). 1. Single point height adjustment bolt 2.
Maintenance Deck Belt Tension Self-tensioning - No adjustment necessary. Adjusting the Parking Brake Service Interval: After the first 100 hours Every 500 hours thereafter Check to make sure brake is adjusted properly. This procedure must be followed after the first 100 hours or when a brake component has been removed or replaced. 1. Drive the machine onto a level surface. 2. Disengage the blade control switch (PTO), move the motion control levers to the neutral locked position and set the parking brake.
Maintenance 14. Once step 11 is achieved, hold the threaded rod end with a tool and tighten the lock nut against the standard nut. Do Not allow the cable to turn when the nuts are tightened. WARNING Engine must be running and drive wheels must be turning so park brake adjustment can be performed. Contact with moving parts or hot surfaces may cause personal injury. 15.
Maintenance Figure 34 1. 2. 3. 4. Armature Field shell Rotor Brake mounting bolt 5. Brake spacer 6. Re-gap shim 7. Brake pole Figure 35 1. Brake mounting bolt 2. Shim B. Using needle nose pliers, or by hand, take hold of the tab and remove the shim (Do Not discard the shim until proper clutch function has been confirmed). Removing the Shim: 1. Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake. Allow the machine to cool completely before starting these instructions.
Maintenance 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. Keep fingers, hands, and clothing clear of rotating components and hot surfaces. Figure 37 1. Prior to starting the engine, push the deck lift pedal and remove the height of cut pin. Lower deck to the ground. 1. Feeler gauge • If the gap is less than 0.
Maintenance Motion Control Neutral Lock Pivot Adjustment The flanged nut can be adjusted to obtain a more desired motion control lever resistance (Figure 40). Figure 38 1. Double nuts 8. Shut off unit. Remove jumper wire from wire harness and plug connector into seat switch. 9. Remove the jack stands. 10. Raise the deck and re-install the height of cut pin. 11. Check that the machine does not creep in neutral with the park brakes disengaged. Figure 40 1. Flanged nut 2. Jam nut 1. Loosen the jam nut.
Maintenance Figure 42 RH Motion Control Shown Figure 41 1. Bolts 2. Control lever 3. Control arm shaft 4. Nuts 5. Slotted holes 3. Motion control lever 1. Screw 2. Cover plate 2. Move the control lever to the next set of holes. Secure the lever with the two bolts. Caster Pivot Bearings Pre-Load Adjustment 3. Repeat the adjustment for the opposite control lever.
Maintenance Cleaning Removing debris from the hydro fan cooling fins will allow the hydro system to run cooler and improve the life of the hydro system. Clean Engine and Exhaust System Area 1. Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake. 2. Slide seat all the way forward. Service Interval: Before each use or daily (May be required more often in dry or dirty conditions.) 3. Remove accumulated debris from the hydro fan cooling fins.
Maintenance Waste Disposal Motor Oil Disposal Engine oil and hydraulic oil are both pollutants to the environment. Dispose of used oil at a certified recycling center or according to your state and local regulations. Battery Disposal DANGER Battery electrolyte contains sulfuric acid, which is poisonous and can cause severe burns. Swallowing electrolyte can be fatal or if it touches skin can cause severe burns.
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. Do not attempt to service or replace major items or any items that call for special timing of adjustment procedures (such as valves, governor, etc.).
Troubleshooting Problem Possible Cause 15. Seat switch is not functioning properly. 16. Electrical connections are corroded, loose or faulty. 17. 18. 19. 20. Engine loses power Engine overheats. Relay or switch is defective. Faulty spark plug. Spark plug wire is not connected. Faulty module. Corrective Action 15. Check the seat switch indicator. Replace seat if needed. 16. Check the electrical connections for good contact.
Troubleshooting Problem Blades do not rotate. Possible Cause 1. Drive belt is worn, loose or broken. 1. Check the belt tension. 2. Deck belt is worn, loose or broken. 3. Deck belt is off pulley. 2. Install new deck belt. 3. Install belt on clutch and deck pulleys, idlers, and tensioning idler per routing decal on deck. 4. Replace the spring. 5. Refer to belt routing decal on deck. 4. Broken or missing idler spring. 5. Drive belt not routed correctly. Clutch will not engage. Corrective Action 1.
RECTIFIER START TERMINAL R TERMINAL S 56 NONE B+R+I+A B+R+I+S 2. RUN 3. START CIRCUIT "MAKE" TERMINAL S TERMINAL B TERMINAL R TERMINAL A 1. OFF POSITION IGNITION TERMINAL I TERMINAL I BATTERY TERMINAL B CONNECTIONS ACCESSORY TERMINAL A TERMINAL IGNITION SWITCH B A 2 1 2 1 2 1 2 1 1 2 1 2 B A PINK LT.
A BK BK - GND S B BU SW2 (PTO SWITCH) C FUEL SENDER PK + 2 BK BN BN 3 5 BN 8 F3 B PK 1 BN V 4 A PTO CLUTCH 4 10A BK BN 7 U2 TVS DIODE 5 SW5 BK 8 3 (NEUT_L) SW4 (NEUT_R) PTO PK ACCESSORIES FUEL GROUND PK 6 2 Y LTGR PK BRAKE 4 W 7 9 (BRAKE) SW6 GND 15A F4 HOUR METER 11 BK 8 10 T PK 7 1 12 OR B+ KEY_S GN (SEAT) SW7 BN PK OR GY R R OR PK 5 I SW1 (IGNITION) 2 B GN GY GY 1 S V 3 R PK 4 OPTIONAL NEUTRAL FUEL_SOLENOID SEAT
Schematics Hydraulic Diagram 58
Exmark Lazer Z, Lazer Z Advantage Series X, and Vantage Turf Equipment 3 Year Limited Commercial Warranty 5 Year or 750 Hours Limited Consumer Warranty General Warranty Conditions and Products Covered Exmark Mfg. Co. Inc.
Notes: 60
Service Record Date: Description of Work Done: 61 Service Done By:
G011841 Figure 44 This page may be copied for personal use. 1. The maximum slope you can safely operate the machine on is 15 degrees. Use the slope indicator to determine the degree of slope of hills before operating. Do Not operate this machine on a slope greater than 15 degrees. Fold along the appropriate line to match the recommended slope. 2. Align this edge with a vertical surface, a tree, building, fence pole, etc. 3. Example of how to compare slope with folded edge.
SEE EXMARK’S COMPLETE LINE OF ACCESSORIES AND OPTIONS MID-MOUNT RIDING ACCESSORIES AND OPTIONS CUSTOM RIDE SEAT SUSPENSION SYSTEM OPERATOR CONTROLLED DISCHARGE FULL SUSPENSION SEAT ROLL OVER PROTECTION SYSTEM (ROPS) DECK LIFT ASSIST KIT SUN SHADE HITCH KIT TRASH CONTAINER LIGHT KIT TURF STRIPER 12V POWER PORT ULTRA VAC COLLECTION SYSTEM MICRO-MULCH SYSTEM ULTRA VAC QUICK DISPOSAL SYSTEM OUT-FRONT RIDING ACCESSORIES AND OPTIONS CUSTOM RIDE SEAT SUSPENSION SYSTEM SNOW BLADE DUAL-TAIL WHEEL SN
