Scag Power Equipment Liberty Z SZL48-18FR Operator's Manual
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Scag Power Equipment Liberty Z SZL48-18FR Operator's Manual

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Congratulations on owning a Scag mower! This manual contains the operating
instructions and safety information for your Scag mower. Reading this manual
can provide you with assistance in maintenance and adjustment procedures to
keep your mower performing to maximum effi ciency. The specifi c models that
this book covers are listed on the inside cover. Before operating your machine,
please read all the information enclosed.
© 2017
Scag Power Equipment
Division of Metalcraft of Mayville, Inc.
OPERATOR'S
MANUAL
Liberty Z
Models:
SZL36-18FR
SZL48-18FR
SZL52-21FR
PART NO. 03415 Rev.01
PRINTED 1/2017
PRINTED IN USA

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Summary of Contents for Scag Power Equipment Liberty Z SZL48-18FR

  • Page 1 The specifi c models that this book covers are listed on the inside cover. Before operating your machine, please read all the information enclosed. © 2017 PART NO. 03415 Rev.01 Scag Power Equipment PRINTED 1/2017 Division of Metalcraft of Mayville, Inc. PRINTED IN USA...
  • Page 2 WARNING FAILURE TO FOLLOW SAFE OPERATING PRACTICES MAY RESULT IN SERIOUS INJURY OR DEATH. • Read this manual completely as well as other manuals that came with your mower. • DO NOT operate on steep slopes. To check a slope, attempt to back up it (with the cutter deck down).

  • Page 3: Table Of Contents

    Table of Contents Table of Contents SECTION 1 - GENERAL INFORMATION ...................1 1.1 INTRODUCTION ............................1 1.2 DIRECTION REFERENCE ...........................1 1.3 SERVICING THE ENGINE AND DRIVE TRAIN COMPONENTS ..............1 1.4 SYMBOLS ..............................2 SECTION 2 - SAFETY INFORMATION ..................3 2.1 IMPORTANT SAFETY PRACTICES FOR RIDE-ON MOWERS ..............3 2.2 INTRODUCTION ............................3 2.3 SIGNAL WORDS ............................3 2.4 CHILDREN ..............................3...
  • Page 4 Table of Contents SECTION 5 - TROUBLESHOOTING CUTTING CONDITIONS ..........20 SECTION 6 - ADJUSTMENTS ....................23 6.1 PARKING BRAKE ADJUSTMENT ......................23 6.2 TRACKING ADJUSTMENT ........................24 6.3 THROTTLE CONTROL AND CHOKE ADJUSTMENTS ................24 6.4 BELT ADJUSTMENT ..........................24 6.5 BELT ALIGNMENT .............................25 6.6 CUTTER DECK ADJUSTMENTS ......................25 SECTION 7 - MAINTENANCE ....................28 7.1 MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS ............28 7.2 GREASE FITTING LOCATION CHART .....................29...

  • Page 5: Section 1 - General Information

    Attachments and accessories manufactured by companies industry. However, the prolonged life and maximum other than Scag Power Equipment are not approved for use efficiency of your mower depends on you following the on this machine. See Section 8, Paragraph 8-1.

  • Page 6: Symbols

    Section 1 1.4 SYMBOLS SYMBOL DESCRIPTION SYMBOL DESCRIPTION Choke Transmission Parking Brake Spinning Blade 48071S On/Start Spring Tension on Idler Off/Stop Falling Hazard Thrown Object Hazard Fast Slow Continuously Variable - Linear Cutting Element - Basic Symbol Pinch Point Cutting Element - Engage 481039S Hour meter/Elapsed Operating Hours Cutting Element - Disengage...

  • Page 7: Section 2 - Safety Information

    Section 2 SAFETY INFORMATION 2.1 IMPORTANT SAFETY PRACTICES FOR SIGNAL WORD: RIDE-ON MOWERS It is a distinctive word found on the safety decals on the machine and throughout this manual that alerts the viewer to the existence and relative degree of the hazard. This cutting machine is capable of amputating hands and feet and throwing objects.

  • Page 8: Before Operation Considerations

    Section 2 3. Be alert and turn machine off if a child or other 6. DO NOT carry passengers. person enters the area. 7. DO NOT operate the machine under the influence of 4. DO NOT allow children to ride or play on the alcohol or drugs.

  • Page 9: Safe Handling Of Gasoline

    Section 2 13. Test the operation of the safety interlock system. See 7. Use only approved containers. Use only non- Section 4.2, Page 13. metal, portable fuel containers approved by the Underwriter's Labratory (U.L.) or the American 14. Be sure the interlock switches are functioning Soceity for Testing &...

  • Page 10: Transporting The Mower

    Section 2 24. The machine and attachments should be stopped 12. Before attempting to start the engine, with the operator in the seat, disengage power to the cutter and inspected for damage after striking a foreign deck, place the steering control levers in the neutral object, and damage should be repaired before position and engage the parking brake.

  • Page 11: Maintenance Considerations & Storage

    Section 2 6. To reduce fire hazard, keep the cutting units, drives, muffler and engine free of grass, leaves, excessive grease, oil and dirt. Clean up oil or fuel spillage and remove any fuel soaked debris. Allow the machine to cool before storing.

  • Page 12: Using A Spark Arrestor

    Section 2 17. Charge batteries in an open, well ventilated area, away from spark and flames. Unplug charger before connecting or disconnecting from battery. Wear protective clothing and use insulated tools. 2.10 USING A SPARK ARRESTOR The engine in this machine is not equipped with a spark arrestor muffler.

  • Page 13: Safety Decal Location

    Section 2 2.12 SAFETY DECAL LOCATION WARNING WARNING (Under Seat) 485625 (48 & 52 Models) 485815 (36 model) DANGER DANGER DANGER DANGER (molded into tank) 483505 485667 (molded into tank) WARNING WARNING 483402 DANGER DANGER 483505 WARNING WARNING 483406 DANGER DANGER CUTTER WARNING...

  • Page 14: Section 3 - Specifications

    Section 3 SPECIFICATIONS 3.1 ENGINE General Type ....................Heavy Duty Industrial/Commercial Gasoline Model: Scag Model SZL36-18FR / SZL48-18FR ..................Kawasaki FR600V Scag Model SZL52-21FR ........................Kawasaki FR651V Displacement: Kawasaki FR600V .............................. 603cc Kawasaki FR651V .............................. 726cc Type ......................4 Cycle Gasoline, Twin Cylinder, Vertical Shaft Cylinders .............................

  • Page 15: Cutter Deck

    Section 3 3.4 CUTTER DECK Type ......Floating, Adjustable, Anti-Scalping, Hybrid Design Combines Out-Front and Belly-Mount Designs Construction ................10-Gauge top with 11-Gauge reinforcement throughout the spindle area, 10-Gauge skirt for strength and longevity True Cutting Width: 36 ................................36" (91.4 cm) 48 ................................48"...

  • Page 16: Section 4 - Operating Instructions

    Section 4 OPERATING INSTRUCTIONS 1. Ignition Switch (Figure 4-1). The ignition switch WARNING is used to start the engine and has three positions; OFF, ON, and START. 2. Mower Deck Switch (Figure 4-1). Used to engage Do not attempt to operate this mower unless you and disengage the mower drive system.

  • Page 17: Safety Interlock System

    Section 4 5. Hourmeter (Figure 4-1). Indicates the number of 11. Deck Lift Foot Lever (Figure 4-1). Used to raise hours the engine has been operated. It operates and lower the cutter deck. whenever the engine is running. Has preset 12.

  • Page 18: Initial Run-In Procedures

    Section 4 9. While the engine is running, move either steering 4.4 STARTING THE ENGINE control lever to the center and out of the neutral lock position. CAUTION 10. The engine should STOP. Repeat steps 7 through 9 with the other steering control lever. 11.
  • Page 19 Section 4 Practice operating the mower until you are - NOTE - comfortable with the controls before proceeding Smooth operation of the steering levers will to mow. produce smooth mower operation. While learning the operation of the steering controls, keep the travel speed low.

  • Page 20: Engaging The Deck Drive (Cutter Blades)

    Section 4 To steer right while traveling in reverse, allow the right 4.7 SLOPE OPERATION steering control lever to move forward. The further the control is allowed to move forward, the quicker the mower Slopes are a major factor related to loss of control and tip will turn right.

  • Page 21: Parking The Mower

    Section 4 12. Loss of traction may occur when traveling down hill. 4.8 PARKING THE MOWER Weight transfers to the front of the machine and may cause the drive wheels to slip causing loss of 1. Park the machine on a flat, level surface only. Do not braking or steering.

  • Page 22: Removing Clogged Material

    Section 4 2. The discharge chute must not be removed and 4.10 REMOVING CLOGGED MATERIAL must be kept in the lowest position to deflect grass clippings and thrown objects downward. Direct the side discharge away from sidewalks or streets to DANGER minimize cleanup of clippings.

  • Page 23: Towing (Optional Hitch Accessory)

    Section 4 Figure 4-5. Adjusting Cutting Height 3. Lift the pin and insert into the cutting height index at the desired cutting height. See Figure 4-5. Slowly release the foot pedal. A deck height decal is located next to the cutting height index as an aid in adjusting the deck to the desired height.

  • Page 24: Section 5 - Troubleshooting Cutting Conditions

    Section 5 TROUBLESHOOTING CUTTING CONDITIONS CONDITION CAUSE CURE STRINGERS - OCCASIONAL Low engine RPM Run engine at full RPM BLADES OF UNCUT GRASS Ground speed too fast Slow speed to adjust for conditions Wet grass Cut grass after it has dried out Dull blades, incorrect sharpening Sharpen blades Deck plugged, grass accumulation...
  • Page 25 Section 5 TROUBLESHOOTING CUTTING CONDITIONS (CONT'D) CONDITION CAUSE CURE U N E V E N C U T O N F L AT Lift worn from blade Replace blade GROUND - WAVY HIGH-LOW APPEARANCE, SCALLOPED Blade upside down Mount with cutting edge toward ground CUT, OR ROUGH CONTOUR Deck plugged, grass accumulation Clean underside of deck...
  • Page 26 Section 5 TROUBLESHOOTING CUTTING CONDITIONS (CONT'D) CONDITION CAUSE CURE SCALPING - BLADES HITTING Low tire pressures Check and adjust pressures DIRT OR CUTTING VERY CLOSE TO THE GROUND Ground speed too fast Slow speed to adjust for conditions May need to reduce ground speed, raise Cutting too low cutting height, change direction of cut, and/or change pitch and level...

  • Page 27: Section 6 - Adjustments

    Section 6 ADJUSTMENTS 6.1 PARKING BRAKE ADJUSTMENT WARNING Do not operate the mower if the parking brake is not operable. Possible severe injury could result. The parking brake linkage should be adjusted whenever the parking brake lever is placed in the “ENGAGE” position and RELEASE BRAKE the parking brake will not prevent the mower from moving.

  • Page 28: Tracking Adjustment

    These adjustments must be performed by your Authorized indication that the left wheel is turning faster than Scag Power Equipment Dealer to ensure proper and the right wheel. To adjust this condition, proceed as efficient running of the engine. Should either need follows: adjustment, contact your authorized Scag service center.

  • Page 29: Belt Alignment

    Section 6 WARNING ADJUSTMENT If the pump drive belt fails, steering control will be lost which could result in serious injury or death. Replace the pump drive belt as needed or every ADJUSTMENT 400 hours / 2 years, whichever occurs fi rst. 6.5 BELT ALIGNMENT Belt alignment is important for proper performance of your Scag mower.
  • Page 30 Section 6 - NOTE - To prevent the cutter deck from teetering, all four (4) cutter deck hanging links must have tension on them. If all four links do not have tension on ADJUSTMENT them and the deck teeters, you must readjust the cutter deck as outlined in the procedures above.
  • Page 31 Section 6 ADJUSTMENT ADJUSTMENT Figure 6-8. Cutter Deck Height Adjustment - Right Side 3. Turn the elastic stop nuts an equal amount of turns either clockwise to raise or counter-clockwise to lower the cutter deck until the measurement at the cutter blade is 3"...

  • Page 32: Section 7 - Maintenance

    Section 7 MAINTENANCE 7.1 MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS HOURS PROCEDURE COMMENTS BREAK-IN (FIRST 10) Check all hardware for tightness Check hydraulic oil level See paragraph 7.3 Check all belts for proper alignment See paragraph 7.8 Change engine oil See paragraph 7.4 Check hydraulic hoses for leaks U s e ex t r e m e c a u t i o n w h e n...

  • Page 33: Grease Fitting Location Chart

    Section 7 7.2 GREASE FITTING LOCATION CHART - GREASE GUN Not Applicable to 36” models Not Applicable to 36” models Not Applicable to 36” models Not Applicable to 36” models...

  • Page 34: Hydraulic System

    Section 7 B. CHANGING HYDRAULIC OIL 7.3 HYDRAULIC SYSTEM The hydraulic system oil should be changed after the first A. CHECKING HYDRAULIC OIL LEVEL 120 hours of machine operation and every 400 hours or annually thereafter, whichever occurs first. The oil should The hydraulic oil level should be checked after the first 10 also be changed if the color of the fluid has become black hours of operation.

  • Page 35: Engine Oil

    Section 7 5. Once the hydraulic system has drained, install new DUMP VALVE hydraulic oil filters to both axles by hand, turn 3/4 CONTROL LEVER to one complete turn after filter gasket contacts the filter base. 6. Reinstall the filter guards and torque the screws to 65 in/lbs.

  • Page 36: Engine Fuel System

    Section 7 C. CHANGING ENGINE OIL FILTER 7.5 ENGINE FUEL SYSTEM Replace the oil filter after every 100 hours of operation. Refer to Engine Operator’s Manual for instructions. DANGER To avoid injury from burns, allow the mower to cool before removing the fuel tank cap and refueling.
  • Page 37 Section 7 5. NEVER fill containers inside a vehicle or on a truck or trailer bed with a plastic liner. Always place containers on the ground away from your vehicle before filling. 6. Remove the machine from the truck or trailer and fuel on level ground.

  • Page 38: Engine Air Cleaner

    Section 7 7.6 ENGINE AIR CLEANER 7.7 BATTERY A. CLEANING AND/OR REPLACING AIR WARNING CLEANER ELEMENT For any air cleaner, the operating environment dictates the Lead-acid batteries produce flammable and air cleaner service periods. Inspect and clean the air filter explosive gases.

  • Page 39: Drive Belts

    Section 7 A. CHARGING THE BATTERY - NOTE - If you experience frequent belt wear or breakage, Refer to the battery charger’s manual for specific see your authorized Scag service center for belt instructions. adjustment. Under normal conditions the engine’s alternator will have no problem keeping a charge on the battery.
  • Page 40 Section 7 - NOTE - 2. Raise the mower deck to the highest position. Place the lanyard pin in the highest cutting height position Keep the blades sharp. Cutting with dull blades not to prevent the cutter deck from falling. only yields a poor mowing job, but slows the cutting speed of the mower and causes extra wear on the 3.

  • Page 41: Tires

    Section 7 7.10 TIRES Check the tire pressures after every 8 hours of operation or daily. Caster Wheels 25 PSI Drive Wheels 8 PSI 7.11 BODY, DECK, AND UPHOLSTERY CAUTION Do not wash any portion of the equipment while it is hot.

  • Page 42: Section 8 - Illustrated Parts List

    Section 8 ILLUSTRATED PARTS LIST 8.1 SCAG APPROVED ATTACHMENTS AND ACCESSORIES. Attachments and accessories manufactured by companies other than Scag Power Equipment are not approved for use on this machine. Scag approved attachments and accessories: • GC-SZL/SFZ/SPZ (p/n 901k, requires p/n 9070 (36"), 9069 (48") or 9070 (52") baffl e kit) •...

  • Page 43: Notes

    Section 8 NOTES...

  • Page 44: Cutter Deck

    Section 8 36 CUTTER DECK 11 12...
  • Page 45 Section 8 36 CUTTER DECK Ref. No. Part No. Description 485805 Belt, Cutter Deck 483422 Pulley, 5" Idler 04112-06 Nut, 3/4-16 Spiral Lock 04063-01 Key, 1/4 x 1/4 x 1-1/4" 483324 Pulley, 5.73" OD - 25mm Bore 04021-09 Nut, 3/8-16 Elastic Stop 04043-11 Flat washer, 1/4-.266 x .875 x .125 483453-03...

  • Page 46: 52 Cutter Decks

    Section 8 48 & 52 CUTTER DECKS 48 49...
  • Page 47 Section 8 48 & 52 CUTTER DECKS Part No. Description 48 52 Part No. Description 48 52 485350 Belt, Cutter Deck -48 462014 Spindle Housing (incl. 34, 35) 485424 Belt, Cutter Deck - 52 43694 Protector, Bearing Bracket, Belt Guide 43695 Shaft, Spindle 424615...

  • Page 48: Cutter Deck Controls

    Section 8 36 CUTTER DECK CONTROLS...
  • Page 49 Section 8 36 CUTTER DECK CONTROLS Ref. No. Part No. Description 426675 Link, Deck Lift - LH 04117-02 Nut, 3/8-16 Elastic Stop 04001-32 Bolt, Hex Head 3/8-16 x 1-1/4" 43086 Bushing 04061-07 Cotter Pin, 3/16 x 1" 04040-07 Flatwasher, 1/2-.531 x 1.062 x .095 04021-07 Nut, 1/2-13 Elastic Stop 43982...

  • Page 50: 52 Cutter Deck Controls

    Section 8 48 & 52 CUTTER DECK CONTROLS...
  • Page 51 Section 8 48 & 52 CUTTER DECK CONTROLS Ref. No. Part No. Description 426675 Link, Deck Lift - LH 04117-02 Nut, 3/8-16 Elastic Stop 04001-32 Bolt, Hex Head 3/8-16 x 1-1/4" 43086 Bushing 04061-07 Cotter Pin, 3/16 x 1" 04040-07 Flatwasher, 1/2-.531 x 1.062 x .095 04021-07 Nut, 1/2-13 Elastic Stop...

  • Page 52: Sheet Metal Components

    Section 8 36 SHEET METAL COMPONENTS TO BOTTOM OF SEAT MOUNTING PLATE...
  • Page 53 Section 8 36 SHEET METAL COMPONENTS Ref. No. Part No. Description 485361 Seat, SZL 483559 Cable, Seat Stop 04001-59 Bolt, Hex Head 1/4-20 x 1-1/4" 04019-02 Nut, 1/4-20 Serrated Flange 462924 Seat-Plate W/Decal 04132-01 Threaded Insert, 3/8-16 04030-03 Bolt, Hex Head 5/16-18 x 3/4" 04040-15 Lockwasher, 5/16"...

  • Page 54: 52 Sheet Metal Components

    Section 8 48 & 52 SHEET METAL COMPONENTS TO BOTTOM OF SEAT MOUNTING PLATE...
  • Page 55 Section 8 48 & 52 SHEET METAL COMPONENTS Ref. No. Part No. Description 485361 Seat, SZL 483559 Cable, Seat Stop 04001-59 Bolt, Hex Head 1/4-20 x 1-1/4" 04019-02 Nut, 1/4-20 Serrated Flange 462791 Seat Plate w/Decal 04001-19 Bolt, Hex Head 3/8-16 x 1" 04001-08 Bolt, Hex Head 5/16-18 x 3/4"...

  • Page 56: Drive System Components

    Section 8 36 DRIVE SYSTEM COMPONENTS...
  • Page 57 Section 8 36 DRIVE SYSTEM COMPONENTS Part No. Description Part No. Description 485808 Belt, Transmission SZL-36 *485192 Engine, Kawasaki - FR600V Oil Drain, Kawasaki 04001-51 Bolt, Hex Head 3/8-16 x 3-3/4" 04043-04 Flatwasher, 3/8-.391 x .938 x .105 484210 Gasket, Exhaust 483638 Pulley, 3-1/2"...

  • Page 58: 52 Drive System Components

    Section 8 48 & 52 DRIVE SYSTEM COMPONENTS 74 14 66 18...
  • Page 59 Section 8 48 & 52 DRIVE SYSTEM COMPONENTS Part No. Description Part No. Description 04001-31 Bolt, Hex Head 3/8-16 x 2-1/2" *485192 Engine, Kawasaki - FR600V 44219 Rod, Upper Brake Linkage *485291 Engine, Kawasaki - FR651V 485349 Belt, Transmission-SZL Gasket, Exhaust 04001-51 Bolt, Hex Head 3/8-16 x 3-3/4"...

  • Page 60: Electrical System

    Section 8 36 ELECTRICAL SYSTEM STARTER GROUND...
  • Page 61 Throttle Control, Kawasaki 04003-43 Bolt, Carriage #10-24 x 1/2" 483646 Choke Control, Kawasaki 04030-02 Lockwasher, 1/4" 04040-14 Flatwasher, 1/4-.312 x .750 x .065 462942 Instrument Panel w/Decal, SZL-36 485216 Hourmeter 483957 Switch, PTO * Not available through Scag Power Equipment. Purchase locally.

  • Page 62: 52 Electrical System

    Section 8 48 & 52 ELECTRICAL SYSTEM STARTER GROUND 37 33...
  • Page 63 Bolt, Hex Head 7/16-20 x 3" w/Patch 48298 Fuse, 20 Amp 484595 Pulley, 4-1/2" Dia. - 1" Bore 04063-01 Key, 1/4 x 1/4 x 1-1/4" 483589 Diode (part of wire harness) * Not available through Scag Power Equipment. Purchase locally.

  • Page 64: Fuel System

    Section 8 FUEL SYSTEM *For California Only SZL-36 Models Only SZL-48 & 52 Models Only Purge Tank Purge Tank...
  • Page 65 Section 8 FUEL SYSTEM Ref. No. Part No. Description 484286 Fuel Cap *484297 Fuel Cap, C.A.R.B. 485670 Fuel Neck Insert 484333 Remote Vent, No Valve 484285 Grommet, Kelch 485393 Fuel Gauge (requires #6) 485394 Grommet, Fuel Gauge 485391 Valve, Fuel Shut Off 482571 Bushing, .56 Dia.

  • Page 66: Replacement Decals And Information Plates

    Section 8 REPLACEMENT DECALS AND INFORMATION PLATES WARNING WARNING DANGER DANGER WARNING WARNING CUTTER DECK DOWN 485843...
  • Page 67 Section 8 REPLACEMENT DECALS AND INFORMATION PLATES Ref. No. Part No. Description 483402 Decal, Belt Cover 483405 Decal, Warning 485432 Decal, Liberty Z - Bumper 483505 Decal, Spinning Blades 482100 Decal, Traction Control 485390 Decal, Height of Cut 483710 Decal, 36 48318 Decal, 48 48319...

  • Page 68: Electrical Schematic

    Section 8 ELECTRICAL SCHEMATIC BRAKE INTERLOCK SWITCH WHITE BLACK LH NEUTRAL SWITCH GREEN BLACK W/RED STRIPE WHITE GREEN SEAT SWITCH GREEN BLACK BLACK W/RED STRIPE GREEN RH NEUTRAL SWITCH WHITE BLACK W/RED STRIPE GREEN LIGHT KIT BLACK Position Key Switch Legend G + M + A (optional) B + L + A...

  • Page 69: Section 9 - Limited Warranty - Szl

    If the mower is cutting more than the owners single property, it is deemed commercial use and the warranty does not apply. Scag Power Equipment reserves the right to deny and / or void the non- commercial warranty if it believes it to be in commercial use.
  • Page 70 © 2017 Scag Power Equipment Division of Metalcraft of Mayville, Inc.

This manual is also suitable for:

Liberty z szl36-18frLiberty z szl52-21fr

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