Exmark LAZER Z PROPANE, Operator'S Manual

Page 1: ...LAZER Z PROPANE For Serial Nos 316 000 000 Higher Part No 4502 640 Rev A ...

Page 2: ... The enclosed Engine Owner s Manual is supplied for information regarding The U S Environmental Protection Agency EPA and the California Emission Control Regulation of emission systems maintenance and warranty Keep this engine Owner s Manual with your unit Should this engine Owner s Manual become damaged or illegible replace immediately Replacements may be ordered through the engine manufacturer L...

Page 3: ...com for additional safe operation information such as safety tips training materials and Operator s manuals If additional information is needed or should you require trained mechanic service contact your authorized Exmark equipment dealer or distributor All Exmark equipment dealers and distributors are kept informed of the latest methods of servicing and are equipped to provide prompt and efficien...

Page 4: ... Check High Pressure Lines and Fittings 42 Drain Vaporizer Regulator 42 Clean Vaporizer Regulator 43 Remove Combustion Deposits 43 Check Fuel Lock Off Assembly 43 Change Engine LPG Fuel Filters 43 Change Hydraulic System Filter and Fluid 43 Wheel Hub Slotted Nut Torque Specification 44 Thread Locking Adhesives 44 Copper Based Anti seize 44 Dielectric Grease 44 Adjustments 45 Deck Leveling 45 Pump ...

Page 5: ... it is converted into a vapor Since LPG is stored as both liquid and gas it may leak from joints or connections that are not sealed properly LPG becomes flammable when it is mixed with air The LPG information in this Operator s manual is provided only as a guide Consult the NFPA 58 Liquefied Petroleum Gas Code for additional safety information This National Fire Protection Association NFPA code pe...

Page 6: ...rom LPG fuel can burn you others and cause property damage Never smoke around tank s and stay away from an open flame or where fumes may be ignited by a spark Extinguish all sources of spark or flame when approaching LPG tanks or mowers The hazard increases for enclosed trailers or storage locations where vapor leakage may occur and collect LPG is heavier than air and may accumulate in low lying a...

Page 7: ...f contact occurs with vapors or liquid Check that the operators presence controls safety switches and shields are attached and functioning properly Do Not operate unless they are functioning properly Inspection It is very important to check the LPG tank and components for wear or leaks Important Never check for leaks using an open flame Important Never use bare hands when checking the fitting or v...

Page 8: ...r more details Do Not fill the LPG tank if it is beyond the requalification period Do Not fill damaged or rusted LPG tanks Operation WARNING Operating engine parts especially the muffler become extremely hot Severe burns can occur on contact and debris such as leaves grass brush etc can catch fire Allow engine parts especially the muffler to cool before touching Remove accumulated debris from muff...

Page 9: ...may obscure vision Slope Operation Use Extreme caution when mowing and or turning on slopes as loss of traction and or tip over could occur The operator is responsible for safe operation on slopes 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...

Page 10: ... alterations or attachments added to the ROPS must be approved by Exmark Maintenance and Storage Disengage drives set parking brake stop engine and remove key or disconnect spark plug wire Wait for all movement to stop before adjusting cleaning or repairing Keep engine and engine area free from accumulation of grass leaves excessive grease or oil and other debris which can accumulate in these area...

Page 11: ...accidentally engage causing personal injury Be sure ignition switch is in the OFF position before charging the battery Keep all guards shields and all safety devices in place and in safe working condition Check all bolts frequently to maintain proper tightness Frequently check for worn or deteriorating components that could create a hazard WARNING Removal or modification of original equipment part...

Page 12: ...Fuel system components are under high pressure The use of improper components can result in system failure fuel leakage and possible explosion Use only approved fuel lines and fuel filters for high pressure systems 12 ...

Page 13: ... your authorized Exmark equipment dealer or distributor or from Exmark Mfg Co Inc Safety signs may be affixed by peeling off the backing to expose the adhesive surface Apply only to a clean dry surface Smooth to remove any air bubbles Familiarize yourself with the following safety signs and instruction labels They are critical to the safe operation of your Exmark commercial mower 99 8936 1 Machine...

Page 14: ... Read the Operator s manual drive slowly and carefully 109 6036 1 Read the Operator s manual 2 Remove the ignition key and read the instructions before servicing or performing maintenance 3 Height of cut 112 9028 1 Warning stay away from moving parts keep all guards in place 114 4465 1 Hydraulic fluid service interval 50 hours 4 Read the Operator s Manual before servicing or performing maintenance...

Page 15: ...ator presence switch 116 4858 116 5988 1 Parking brake engaged 2 Parking brake disengaged 116 8283 1 Warning read the Operator s Manual for instructions on torquing the blade bolt nut to 55 60 ft lb 75 81 N m 116 8725 1 Throttle fast 3 PTO 2 Throttle slow 4 Check engine 116 8726 1 Read the Operator s Manual for recommended hydro oil 15 ...

Page 16: ...eplace tank s around sources of fuel ignition 4 Do NOT attempt to repair or modify the tank or its components Contact trained and qualified person ONLY use LPG System Manufacturer approved LPG tank s fittings and hoses that were designed for the unit 5 Close fuel valve when mower is not in use in storage or transporting 6 Avoid contact with LPG fuel Escaping vapors and liquids freezes skin on cont...

Page 17: ...on a level surface disengage PTO and engage parking brake 8 Install full replacement tank s by aligning center hole on tank collar over mounting tab 3 Close the fuel valve s on ALL tanks by rotating clockwise continue to run engine 9 Latch bracket s and ensure tank s is securely fastened to mower 4 When the engine stops remove key 10 Re connect fuel hose s 5 Disconnect LPG fuel hose s 11 Slowly op...

Page 18: ... machine and that has an incline less than 15 degrees back up the ramp in reverse and drive forward off the ramp 2 Cutting and pinching hazard keep hands and feet away from moving parts keep all guards and shields in place 5 Bodily harm hazard look behind you when mowing in reverse 3 Thrown object hazard keep bystanders away 6 Tipping hazard on slopes do not use on slopes near open water do not us...

Page 19: ...System Charging System Flywheel Alternator Charging Capacity 20 amps Battery Type BCI Group U1 Recommended Minimum Battery CCA 260 CCA Battery Voltage 12 Volt Low Voltage Light RH control panel Polarity Negative Ground Fuses 25 amp main fuse 25 amp charging system fuse 10 amp PTO fuse 15 amp accessory fuse Safety Interlock System LCD indicators appear for the PTO park brake drive levers and operat...

Page 20: ...ugh ground cut outs Hydrostatic Ground Drive System Two unitized hydrostatic transmissions 12cc Parker axial piston pump 240cc Parker geroler motor Hydraulic Oil Type Exmark Premium Hydro oil Hydraulic Oil Capacity 52 oz 1 5 L per side Hydraulic Filter P N 116 0164 Speeds 0 10 mph 16 1 km hr forward 0 5 5 mph 8 9 km hr reverse Drive wheel release valves allow machine to be moved when engine is not...

Page 21: ...s 118 9 cm Tread Width Center to Center of Tires Widthwise 52 inch Deck 60 inch Deck 72 inch Deck Drive Wheels 38 5 inches 97 8 cm 41 6 inches 105 7 cm 43 6 inches 110 7 cm Caster Wheels 32 8 inches 83 3 cm 39 5 inches 100 3 cm 47 1 inches 119 6 cm Wheel Base Center of Caster Tire to Center of Drive Tire 52 inch Deck 60 inch Deck 72 inch Deck 48 0 inches 121 9 cm 51 6 inches 131 1 cm 53 6 inches 1...

Page 22: ...ft lb 37 45 N m Wheel Lug Nuts 85 105 ft lb 115 142 N m Wheel Motor Mounting Bolts 72 77 ft lb 98 104 N m Wheel Hub Slotted Nut 211 260 ft lb 286 352 N m Rollover Protection System Roll Bar 1 2 inch Mounting Bolts 75 80 ft lb 102 108 N m Clutch Retaining Bolt secured with threadlocker 55 60 ft lb 75 81 N m Product Overview Figure 4 1 Rollover Protection System ROPS 5 Height of cut adjustment 2 LPG...

Page 23: ...n handles in 5 Neutral operate 3 Front of Unit 6 Reverse Throttle Control Located on right console red lever see Figure 6 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 Figure 6 Right Console 1 Fuses 4 PTO engag...

Page 24: ...If the ignition key is turned to the ON position for a few seconds before cranking the engine the battery voltage will display in the area where the hours are normally displayed Note The LCD indicators appear when each control meets the safe to start mode e g the indicator turns on when the operator is in the seat Fuel Valve Located on the LPG fuel tank The fuel valve is used to open and close the...

Page 25: ... for operation Do Not tow machine PTO Engagement Switch Located on right console see Figure 6 Switch must be pulled out up to engage the blades Switch is pushed in to disengage the blades The LCD indicator will appear when the PTO switch is disengaged see Figure 8 Low Voltage Indicator Located on the right console in the message display seeFigure 6 and Figure 8 A low voltage condition less than 12...

Page 26: ...ir locations their functions and their safety requirements Refer to the Maintenance section and perform all the necessary inspection and maintenance steps Operating Instructions Raise the Rollover Protection System ROPS Important The roll bar is an integral and effective safety device Keep the roll bar in the raised and locked position when operating the mower Lower the roll bar temporarily only w...

Page 27: ...e the fuel valve completely and wait five seconds Slowly open the fuel valve 2 Rotate the fuel valve counterclockwise to turn on the fuel If leaks are detected refer to the leak information in the Inspection section in Safety Starting the Engine 1 Move the motion control levers out to the neutral lock position 2 Pull up and back on the parking brake lever to engage the parking brake 3 Push in on t...

Page 28: ...to the neutral lock position 4 Engage the parking brake 5 Place the throttle in the SLOW position 6 Turn off the fuel valve and allow the engine to run out of fuel Failure to do this may cause the engine to flood when re starting 7 Turn the ignition switch to the OFF position once the engine has stopped 8 Remove the key to prevent children or other unauthorized persons from starting engine Driving...

Page 29: ...h levers forward with equal pressure Figure 14 To turn left or right pull the motion control lever back toward neutral in the desired turn direction The machine will move faster the farther the motion control levers are moved from the neutral position 4 To stop position both motion control levers in the neutral operate position Driving in Reverse 1 Move the motion control levers inward to the neut...

Page 30: ... 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 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 outwa...

Page 31: ...out turn signals lights reflective markings or a slow moving vehicle emblem is dangerous and can lead to accidents causing personal injury Do not drive machine on a public street or roadway Loading the Machine Use extreme caution when loading or unloading machines onto a trailer or a truck Use a full width ramp that is wider than the machine for this procedure Back up ramps and drive forward down ...

Page 32: ...mps and drive forward down ramps Avoid sudden acceleration or deceleration while driving the machine on a ramp as this could cause a loss of control or a tip over situation g027996 5 1 2 6 Figure 20 1 Full width ramp in stowed position 4 Ramp is at least four times 4X as long as the height of the trailer or truck bed to the ground 2 Side view of full width ramp in loading position 5 H height of th...

Page 33: ...e temperature exceeds approximately 160 F 71 C the tank will release highly flammable propane vapor See Preparation in the Safety Section Do Not transport LPG tank s in the passenger space of a vehicle Do Not transport leaking fuel tanks Trailers must have appropriate markings to transport LPG Follow NFPA 58 and state and local regulations for transporting LPG 33 ...

Page 34: ...ent After the first 250 hours Change the hydraulic filter and fluid Before each use or daily Check the engine oil level Check the mower blades Check the safety interlock system Check the rollover protections systems roll bar knobs Check the seat belt Check for loose hardware Check the LPG tank and components Clean the engine and exhaust system area Clean the hydro fan cooling guards Clean the gras...

Page 35: ...rface 2 Check with engine cold 3 Clean area around dipstick Remove dipstick and wipe oil off Reinsert the dipstick according to the engine manufacturer s recommendations Remove the dipstick and read the oil level 4 If the oil level is low wipe off the area around the oil fill cap remove cap and fill to the FULL mark on the dipstick Exmark 4 Cycle Premium Engine Oil is recommended refer to the Engi...

Page 36: ...ted battery cell can cause an explosion resulting in serious personal injury Do Not jump start a weak battery if these conditions exist 2 Make sure the booster is a good and fully charged lead acid battery at 12 6 volts or greater Use properly sized jumper cables 4 to 6 AWG with short lengths to reduce voltage drop between systems Make sure the cables are color coded or labeled for the correct pol...

Page 37: ... 2 Lift deck and secure in raised position as stated in the Clean Grass Build Up Under Deck section 3 Inspect blades and sharpen or replace as required 4 Reinstall the blades if they were removed in the following order A Install bushing through blade with bushing flange on bottom grass side of blade Figure 22 1 Install bushing in blade prior to installing bushing in spindle B Install bushing blade...

Page 38: ... has elapsed seat has time delay kill switch to prevent cut outs on rough terrain Run engine at one third throttle engage PTO and raise off of seat but do not get off of machine engine must initiate shutdown after one second has elapsed if the handles are in The delay will be 1 2 second if the handles are out Run engine at one third throttle with brake disengaged move levers in and raise off seat ...

Page 39: ... remove key Engage parking brake 2 Drain oil while engine is warm from operation 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 Allow oil to drain and replace oil drain plug Torque plug to 20 24 ft lb 4 Replace the oil filter every other oil change Clean around oil filter and unscrew filter to remove ...

Page 40: ...ge parking brake 2 Remove left and right belt shields on deck and lift up floor pan to inspect deck drive belt 3 Check under machine to inspect the pump drive belt 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 pu...

Page 41: ... into the wheel 12 Apply a thread locking adhesive to the 2nd spacer nut and thread onto the axle with the wrench flats facing outward 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 Impo...

Page 42: ...d size match the tank specification decal 9 Align the center hole over the mounting pin that points straight up on the mower as shown in Figure 27 Figure 27 1 Tank collar 3 Center hole 2 Mounting pin Important Valves and gauges may not function properly if the LPG tank is not installed correctly 10 Latch the brackets and make sure the tank is securely fastened to the mower 11 Carefully connect the...

Page 43: ...after Note Only use Exmark Hydro Filter Part No 116 0164 for summer or winter 1 Stop engine wait for all moving parts to stop and remove key Engage parking brake 2 Raise the rear of machine up and support with jack stands or equivalent support just high enough to allow drive wheels to turn freely CAUTION Raising the mower deck for service or maintenance relying solely on mechanical or hydraulic ja...

Page 44: ...ion Service Interval After the first 100 hours Every 500 hours thereafter Torque the slotted nut to 211 260 ft lb 286 352 N m Note Do Not use anti seize on wheel hub Thread Locking Adhesives Thread locking adhesives such as Loctite 242 or Fel Pro Pro Lock Nut Type are used on the following fasteners ROPS spring pin housing Hydro pump control arm linkage bolt and attachment bolt Hydro cooling fan s...

Page 45: ...djust if necessary 4 Position the transport lock in the latching position 5 Push the foot pedal all the way forward and the deck will latch at the 5 1 2 inch 14 cm transport position Figure 28 Figure 28 1 Foot lever 3 Transport lock 2 Height of cut pin 6 Insert the height adjustment pin into the 3 inch 7 6 cm cutting height location 7 Release the transport lock and allow the deck to lower to the c...

Page 46: ...te mounting bolt 15 To adjust the single point system first loosen the front and rear height of cut plate mounting bolts 16 If the deck is too low tighten the single point adjustment bolt by rotating it clockwise If the deck is too high loosen the single point adjustment bolt by rotating it counterclockwise Note Loosen or tighten the single point adjustment bolt enough to move the height of cut pl...

Page 47: ...e 6 Remove any debris from the brake area 7 Rotate the drive wheel release handle to the released position Refer to the Drive Wheel Release Valves section in Operation 8 Check to see if there is a visible gap between the L bracket and the linkage stop see Figure 32 Figure 32 Left Side Shown 1 L bracket 4 Rear linkage assembly 2 Linkage stop 5 Caliper 3 Gap 6 Wheel hub 9 Disengage the park brake th...

Page 48: ...r and armature If the gap is greater than 04 inch 1 mm proceed with the following steps A Loosen both brake mounting bolts one half to one full turn see Figure 34 Note Do Not remove the brake pole from the field shell armature The brake pole has worn to match the armature and needs to continue to match after the shim is removed to ensure proper brake torque Figure 34 1 Brake mounting bolt 2 Shim B...

Page 49: ...aces 1 Prior to starting the engine push the deck lift pedal and remove the height of cut pin Lower deck to the ground 2 Raise the rear of machine up and support with jack stands or equivalent support just high enough to allow drive wheels to turn freely 3 Remove the electrical connection from the seat safety switch located under the bottom cushion of the seat The switch is a part of the seat asse...

Page 50: ...Figure 38 RH Motion Control Shown 1 Torque nyloc nut to 200 in lb 16 7 ft lb Bolt must protrude past end of nyloc nut after torque A T 40 Torx bit will be necessary to hold the stud from turning 2 Most resistance firmest feel 3 Damper 4 Medium resistance medium feel 5 Least resistance softest feel Motion Control Neutral Lock Pivot Adjustment The flanged nut can be adjusted to obtain a more desired...

Page 51: ...hten both bolts to secure the control in the new position 3 Repeat the adjustment for the opposite control lever Motion Control Full Forward Tracking Adjustment If the machine travels or pulls to one side when the motion control levers are in the full forward position adjust the cover plates 1 Loosen the screws on a cover plate see Figure 41 2 Slide the cover plate backward or forward to adjust th...

Page 52: ...l debris from rotating engine air intake screen around engine shrouding and exhaust system area 3 Wipe up any excessive grease or oil around the engine and exhaust system area Remove Engine Shrouds and Clean Cooling Fins Service Interval Every 100 hours 1 Stop engine wait for all moving parts to stop and remove key Engage parking brake 2 Remove cooling shrouds from engine and clean cooling fins Al...

Page 53: ...ll which could cause injury Do Not rely solely on mechanical or hydraulic jacks for support Use adequate jack stands or equivalent support 3 Clean out any grass build up from underside of deck and in discharge deflector 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...

Page 54: ...ulty module 8 Replace module 1 Engine oil level is low 1 Check and add oil if necessary 2 LPG tank is overfilled 2 Take tank to an approved LPG provider to bleed off some fuel 3 LPG tank is not an Exmark approved vapor tank 3 Remove tank and replace with an Exmark approved LPG vapor tank 4 Oil pressure switch or fuel shut off solenoid malfunction 4 Contact an Authorized Kohler Service Dealer 5 Con...

Page 55: ...1 Blade s not sharp 1 Sharpen the blade s 2 Cutting blade s is are bent 2 Install new cutting blade s 3 Mower deck is not level 3 Level mower deck from side to side and front to rear 4 Underside of mower is dirty 4 Clean the underside of the mower 5 Tire pressure in drive tires not correct 5 Adjust tire pressure in the drive tires 6 Blade spindle bent 6 Contact an Authorized Service Dealer Uneven ...

Page 56: ...cessary 2 Low voltage supply at the clutch 2 Check coil resistance battery charge charging system and wiring connections and replace if necessary 3 Damaged coil 3 Replace clutch 4 Inadequate current supply 4 Repair or replace clutch lead wire or electrical system Clean connector contacts Clutch will not engage 5 Rotor armature airgap is too large 5 Remove shim or replace clutch 56 ...

Page 57: ... GND S D PINK MIL PWR BROWN BROWN VIOLET B NC BROWN PINK PINK PINK PINK RED BLACK PINK GRAY PINK BLUE BLACK BLACK BLACK TVS DIODE BROWN BLACK VIOLET PINK 2 1 1 3 2 4 5 6 7 8 1 A B 2 3 1 5 4 1 2 5 4 3 1 2 1 2 1 2 9 12 3 10 1 8 6 5 11 2 4 7 B A 7 4 5 9 3 6 8 1 2 C A B A B E A F B C D 1 2 2 1 2 1 2 1 A B 9 7 4 1 2 3 8 4 1 2 3 5 3 7 1 2 6 8 4 5 F D A C B E 5 3 2 1 4 A B 7 1 6 12 A B IGNITION SWITCH NO...

Page 58: ...Schematics Electrical Logic Schematic 58 ...

Page 59: ...Schematics Hydraulic Diagram 59 ...

Page 60: ...ystem coverage All warranty work must be performed by an authorized Exmark Service Dealer using Exmark approved replacement parts Instructions for Obtaining Warranty Service The product must be registered with original proof of purchase by an Exmark Service Dealer before obtaining any warranty service Contact any Exmark Service Dealer to arrange service at their dealership To locate a dealer conve...

Page 61: ...Service Record Date Description of Work Done Service Done By 61 ...

Page 62: ...62 ...

Page 63: ...se 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 63 ...

Page 64: ... RIDE SEAT SUSPENSION SYSTEM DUAL TAIL WHEEL FLOOR PAN EXTENDER HITCH KIT LIGHT KIT MICRO MULCH SYSTEM ROLL OVER PROTECTION SYSTEM ROPS SNOW BLADE SNOWBLOWER SUN SHADE TRASH CONTAINER ULTRA VAC COLLECTION SYSTEM ULTRA VAC QUICK DISPOSAL SYSTEM WEATHER CAB Some accessories and options not available for some models Place Model No and Serial No Label Here Included in the Literature Pack or Fill in Be...