Table of Contents
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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 efficiency. The specific models that
this book covers are listed on the inside cover. Before operating your machine,
please read all the information enclosed.
© 2013
Scag Power Equipment
Division of Metalcraft of Mayville, Inc.
OPERATOR'S
MANUAL
SWZT
Walk-Behind
Model:
SWZT36-481FS
SWZT48-541FS
PART NO. 03332
PRINTED 3/2013
PRINTED IN USA
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Summary of Contents for Scag Power Equipment SWZT36-481FS
- Page 1 Model: SWZT36-481FS SWZT48-541FS 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 efficiency. The specific models that this book covers are listed on the inside cover.
- Page 2 CONCERN, PRUDENCE, AND PROPER TRAINING OF THE PERSONNEL INvOLvED IN THE OPERATION, TRANSPORT, MAINTENANCE, AND STORAGE OF THE EqUIPMENT. This manual covers the operating instructions and illustrated parts list for: SWzT36-481FS with a serial number of J3400001 to J3499999 SWzT48-541FS...
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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 INTRODUCTION ............................3 2.2 SIGNAL WORDS ............................3 2.3 BEFORE OPERATION CONSIDERATIONS ....................3 2.4 OPERATION CONSIDERATIONS ........................4... - Page 4 7.7 CUTTER BLADES ............................29 7.8 TIRES ................................30 SECTION 8 - ILLUSTRATED PARTS LIST ................31 8.1 SCAG APPROvED ATTACHMENTS AND ACCESSORIES..............31 36" CUTTER DECk ............................32 48" CUTTER DECk ............................34 CUTTER DECk CONTROLS ...........................36 ENGINE DECk & HYDRAULIC SYSTEM ......................38 STEERING CONTROLS ...........................40 BRAkE COMPONENTS ..........................42...
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Page 5: General Information
We encourage you to contact your dealer for repairs. All Scag dealers are informed of the latest methods to open or removed. Under no circumstances should service this equipment and provide prompt and efficient your mower be operated without these devices service in the field or at their service shop. -
Page 6: Symbols
Section 1 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: Safety Information
Scag Service Dealer or by contacting Scag Power Equipment, Service Department at P.O. Box 152, Mayville, WI 53050 or contact us via the Internet at www.scag.com. The manual for this machine can be downloaded by using The signal word “CAUTION” is a reminder of safety practices... -
Page 8: Operation Considerations
Spanish, it is the owner's responsibility to explain this material to them. A Spanish decal kit is available See Section 7.4 ENGINE FUEL SYSTEM for fueling for this model. See your local Scag Dealer. procedure. DO NOT wear loose fitting clothing. Loose clothing,... - Page 9 Section 2 Start the engine when the neutral latches are in CAUTION the neutral lock position, the cutter blades are disengaged, parking brake is engaged and the speed control lever is in neutral. Do not touch the engine or the muffler while the If the mower discharge ever plugs, shut off the engine is running or immediately after stopping.
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Page 10: Maintenance Considerations & Storage
If you need service on your hydraulic system, Do not change the engine governor settings or overspeed the engine. See the engine operator's please see your authorized Scag dealer. manual for information on engine settings. Let the engine cool before storing. -
Page 11: Safety And Instructional Decals
483900 483900 (supplied with California models only) WARNING MOUNT RIDING FALLING HAzARD ATTACHMENT USE ONLY SCAG APPROvED Avoid injury from burns HERE - Shut off engine RIDING ATTACHMENTS - Allow to cool several minutes SEE OPERATOR'S MANUAL - Remove cap slowly... -
Page 12: Specifications
SPECIFICATIONS ENGINE General Type ....................Heavy Duty Industrial/Commercial Gasoline Brand ..................................Kawasaki Engine Model: (Scag Model SWZT36-481FS) ..................Kawasaki Model # FS481V (Scag Model SWZT48-541FS) ..................Kawasaki Model # FS541V Displacement: Kawasaki FS481V .............................. 603cc Kawasaki FS541V .............................. 603cc Cylinders ........................2 with Cast-Iron Sleeves - Kawasaki Governor ..........Mechanical Type with Variable Speed Control Set At 3600 RPM (+/- 100 RPM) -
Page 13: Weights And Dimensions
Acres Per Day ........................9.3 ........12.4 The preceding chart will aid you in determining how many acres your Scag mower will cut per day. The chart is an estimate based on 8 hours per day cutting time at 4 MPH with a 20% allowance for overlap and turns. -
Page 14: Operating Instructions
Section 4 OPERATING INSTRUCTIONS Mower Deck Switch (Figure 4-1). Used to engage CAUTION and disengage the mower drive system. Pulling up on the switch will engage the deck drive. Pushing down on the switch will disengage the deck drive. Do not attempt to operate this mower unless you Engine Choke Control (Figure 4-1). -
Page 15: Safety Interlock System
Section 4 STARTING THE ENGINE Speed Control Lever (Figure 4-1). Used to select the forward speed. Neutral Latch (Figure 4-1). Used to secure the CAUTION hydraulic drive system in neutral. Apply neutral latches when parking the machine. Operator Presence Control (Figure 4-1) DO NOT USE STARTING FLUIDS. -
Page 16: Engaging The Deck Drive (Cutter Blades)
Section 4 FORWARD TRAvEL - NOTE - The mower may not travel straight in reverse. To travel forward with the mower, depress the operator presence control, release the parking brake, select the To steer left while traveling in reverse, pull upward on the desired speed using the speed control lever, pull steering right steering control lever. -
Page 17: Hillside Operation
Section 4 Keep the entire mower clean to inhibit serious heat HILLSIDE OPERATION damage to the engine or hydraulic oil circuit. Check the drive belts for proper alignment and any WARNING signs of wear. Correct and adjust if necessary. DANGER DO NOT operate on steep slopes. -
Page 18: Moving Mower With Engine Stopped
Section 4 4.11 MOvING MOWER WITH ENGINE Cut grass when it is dry and not too tall. Do not cut grass too short (cut off 1/3 or less of existing grass STOPPED for best appearance). Mow frequently. Keep mower and discharge chute clean. To “free-wheel”... -
Page 19: 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 20 Deck plugged, grass accumulation Clean underside of deck Too much blade angle (deck pitch) Adjust pitch and level Deck mounted improperly See your authorized SCAG dealer Bent spindle area See your authorized SCAG dealer Width of Deck Dull blade Sharpen blade...
- Page 21 Blades not mounted evenly Adjust pitch and level OF CUTTING PATH Bent blade Replace blade Internal spindle failure See your authorized SCAG dealer Mounting of spindle incorrect See your authorized SCAG dealer Width of Deck SGB024 SLOPE CUT - SLOPING RIDGES...
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Page 22: Adjustments
Possible severe injury could -NOTE- result. Neutral has been set by your Scag dealer at the time of set up and normally does not need to be The parking brake linkage should be adjusted whenever the adjusted. If, however, you find that the neutral parking brake lever is placed in the “ENGAGE”... -
Page 23: Neutral Latch Adjustment
Section 6 NEUTRAL LATCH ADJUSTMENT -NOTE- This adjustment is made to allow the steering control levers to be moved out of the neutral latch without engaging reverse. Raise the drive wheels off the ground and block the CONTACT HERE caster wheels to prevent the machine from moving. Make sure the speed control lever is in neutral, the steering control levers are in the neutral latch position, and the parking brake is on. -
Page 24: Throttle Control And Choke Adjustments
Belt alignment is important for proper performance of creep. your Scag mower. If you experience frequent belt wear Repeat steps 1 and 2. If the machine continues or breakage, see your authorized Scag service center for to pull to one side, stop the mower by placing belt adjustment. - Page 25 Section 6 ADJUST HERE ADJUST HERE Figure 6-6. Cutter Deck Pitch Adjustment Figure 6-5. Cutter Deck Level Adjustment Move bolts on the front hanger chains up or down in Move bolts on the front and rear deck hanger chains the slots until the cutter deck pitch is equal between up or down in the slots until the cutter deck is level both sides.
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Page 26: Electric Clutch Adjustment
Section 6 CUTTER DECk HEIGHT ELECTRIC CLUTCH ADJUSTMENT The cutter deck height adjustment is made to ensure The electric clutch serves two functions in the operation of that the cutter deck is cutting at the height indicated on the mower. In addition to starting and stopping the power the cutting height index gauge. - Page 27 Section 6 ADJUSTMENT NUTS ADJUSTMENT NUTS Figure 6-11. Clutch Air Gap Adjustment This adjustment should be done every 500 hours of operation or annually, whichever comes first. In cases where the machine is heavily used, airgap settings should be checked more often. If the air gap is too narrow, the clutch armature may drag when disengaged, resulting in premature failure.
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Page 28: Maintenance
Section 7 MAINTENANCE MAINTENANCE CHART - RECOMMENDED SERvICE INTERvALS HOURS PROCEDURE COMMENTS BREAk-IN 100 200 400 (FIRST 10) Check all hardware for tightness C h e c k a l l b e l t s f o r p r o p e r See paragraph 7.6 alignment Check all hydraulic fittings and... -
Page 29: Lubrication
Section 7 MAINTENANCE CHART - RECOMMENDED SERvICE INTERvALS (CONT'D) HOURS PROCEDURE COMMENTS BREAk-IN (FIRST 10) Check hardware for tightness Change engine oil filter See paragraph 7.4 Replace engine fuel filter See paragraph 7.5 Grease caster wheel pivot See paragraph 7.2 shafts Drain hydraulic system, replace Use SAE 20W50 Motor Oil. -
Page 30: Hydraulic System
Section 7 HYDRAULIC SYSTEM B. CHANGING HYDRAULIC OIL 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 31 Section 7 Remove the hydraulic filters from both axles and The hydraulic system will need to be purged of allow the fluid to drain into the container. Properly all air. Raise the rear of the machine so the drive discard the oil when the system has drained wheels are off the ground.
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Page 32: Engine Oil
Section 7 ENGINE OIL FILLER NECK INSERT A. CHECkING ENGINE CRANkCASE OIL LEvEL FUEL LEVEL The engine oil level should be checked after every 8 hours of operation or daily as instructed in the Engine Operator’s Manual furnished with this mower. B. -
Page 33: Engine Air Cleaner
Section 7 Replace gas cap and tighten the fuel cap until it Check the cutter blades for straightness. If the cutter ratchets. blades appear bent, they will need to be replaced. Check the cutter blades for wear. If any part of the B. -
Page 34: Tires
Check the balance of the blade. If the blades are out of balance, vibration and premature wear can occur. The cutter blades should be balanced to 1-1/2 oz-in. LOCKWASHER See your authorized Scag dealer for blade balancing or special tools, if you choose to balance your own blades. FLATWASHER 5/8-11 x 1-1/2"... -
Page 35: Illustrated Parts List
Section 8 ILLUSTRATED PARTS LIST 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: • Mulch Plate (p/n 920G, 9298) •... -
Page 36: 36" Cutter Deck
Section 8 36" CUTTER DECk 2014 SWZT 36CD... - Page 37 Section 8 36" CUTTER DECk Ref. Ref. Part No. Description Part No. Description 04019-06 Nut, Serrated Flange 1/2-13 04021-09 Nut, Elastic Stop 3/8-16 04001-46 Bolt, Hex Head 3/8-16 x 2-1/4" 424615 Bracket, Belt Guide 425959 Pusharm 04043-04 Flatwasher, 3/8-.391 x .938 x .105 04001-72 Bolt, Hex Head 1/2-13 x 2"...
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Page 38: 48" Cutter Deck
Section 8 48" CUTTER DECk 2014 SWZT CD... - Page 39 Section 8 48" CUTTER DECk Ref. Ref. Part No. Description Part No. Description 04041-38 Flatwasher, 3/8-.406 x 2.25" x .188 04021-09 Nut, Elastic Stop 3/8-16 04001-51 Bolt, Hex Head 3/8-16 x 3-3/4" 424615 Bracket, Belt Guide 04001-77 Bolt, Hex Head 3/8-16 x 3-1/2" 04112-06 Nut, 3/4-16 Spiral Lock 04019-04...
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Page 40: Cutter Deck Controls
Section 8 CUTTER DECk CONTROLS... - Page 41 Section 8 CUTTER DECk CONTROLS Ref. No. Part No. Description 481625-01 Knob W/Stud, 3/8-16 x 1-1/4" 04029-04 Wing Nut, 3/8" Plastic Small 462565 Belt Cover w/Decals 462522 Deck Bellcrank Assy. (Incl. item #8) 04021-09 Nut, Elastic Stop 3/8-16 04041-07 Flatwasher, 3/8-.391 x .938 x .105 43086 Bushing 484669...
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Page 42: Engine Deck & Hydraulic System
Section 8 ENGINE DECk & HYDRAULIC SYSTEM... - Page 43 04028-02 Wheel Nut, 1/2-20 04019-03 Nut, Serrated Flange 5/16-18 04001-49 04024-03 Nut, Push-On 5/16-18 Bolt, Hex Head 5/16-18 x 3" 484600 Spring, RTN * Available through the individual engine manufacturer. ** RTN Spring is Scag p/n 484600. See item #61...
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Page 44: Steering Controls
Section 8 STEERING CONTROLS... - Page 45 Section 8 STEERING CONTROLS Ref. Ref. Part No. Description Part No. Description 04021-08 Nut, Elastic Stop 1/4-20 04021-09 Nut, Elastic Stop 3/8-16 04040-15 Flatwasher, 5/16-.375 x .875 x .083 484589 Linkage, Speed Control 425948 Bracket, Neutral Switch 43674 Spacer 04009-16 Bolt, Shoulder 1/2 x 2"...
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Page 46: Brake Components
Section 8 BRAkE COMPONENTS... - Page 47 Section 8 BRAkE COMPONENTS Ref. No. Part No. Description 04069-01 Pin, Rue Cotter 3/8" Dia. 462515 Brake Lever w/Grip 481548 Grip, Brake Lever 04062-02 Hair Pin, .080 x 1.19" 44187 Rod, Brake Linkage 04017-16 Cpscrw, 5/16-18 x 3/4"Serrated Flange HH 04061-02 Cotter Pin, 3/32 x 3/4"...
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Page 48: Electrical System And Throttle Control
Section 8 ELECTRICAL SYSTEM AND THROTTLE CONTROL... - Page 49 Section 8 ELECTRICAL SYSTEM AND THROTTLE CONTROL Ref. No. Part No. Description 462069 Key Assembly w/Fob 483609 Key w/Shroud 48017-04 Nut, 5/8-32 Special 48017-03 Lockwasher, 5/8" Internal Tooth 462576 Instrument Panel w/Decal 04003-43 Bolt, Carriage #10-24 x 1/2" 04003-12 Bolt, Carriage 5/16-18 x 3/4" 483957 PTO Switch 484665...
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Page 50: Swzt Fuel System
Section 8 SWzT FUEL SYSTEM Tank Purge To Fuel Pump To Engine Purge Port... - Page 51 Section 8 SWzT FUEL SYSTEM Ref. No. Part No. Description 484286 Fuel Cap w/ Tether 484297 Fuel Cap w/ Tether - California Models Only (not shown) 484259 Fuel Gauge Assembly (incl. #3) 484242 Seal, Fuel Gauge 462375 Fuel Tank Assembly (incl. #2, 3, 5, 6, 17, 18) 482571 Bushing, .56 Dia.
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Page 52: Zt-2800 Hydraulic Axle Assembly
Section 8 zT-2800 HYDRAULIC AXLE ASSEMBLY... - Page 53 Section 8 zT-2800 HYDRAULIC AXLE ASSEMBLY Ref. Ref. Part No. Description Part No. Description HG52027 Clip, Retaining HG53246 Bolt, Hex Head 1/4-20 x 1-1/8" HG53973 Handle, Brake HG9005110- Plug, 9/16-18 HG51950 Washer, .343 x 1.5 x .062 5600 HG71594* Kit, RTN Assembly * HG71574* Kit, Side Cover * HG71572**...
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Page 54: Replacement Decals And Information Plates
*Mow across face of slopes *Trained operators only PULL OUT TO ENGAGE *Solicite etiquetas en espanol PUSH IN TO DISENGAGE a un distribuidor Scag WARNING ROTATING BLADES AND BELTS * Keep hands, feet & clothing clear * Keep all guards in place * Shut off engine &... - Page 55 Decal, Warning-Rotating Blades 48404 Decal, Metalcraft - Made in USA 483710 Decal, 36 Commercial 483494 Decal, 48 Commercial 484453 Decal, Scag Heavy Duty 483505 Decal, Spinning Blades 483404 Decal, Sulky Attachment 483727 Decal, Scag Logo 483900 Decal, Warning Spark Arrestor...
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Page 56: Swzt Electrical Schematic
Section 8 SWzT ELECTRICAL SCHEMATIC SWITCH BLACK BLACK SWITCH WHITE WHITE L.H. YELLOW NEUTRAL BLACK WHITE OPERATOR BLACK W/RED STRIPE WHITE INTERLOCK PRESENCE BLACK BLACK W/RED STRIPE SWITCH SWITCH BRAKE BLACK W/RED STRIPE BLACK W/RED STRIPE INTERLOCK WHITE SWITCH BLACK HOURMETER R.H. -
Page 57: Limited Warranty - Commercial Equipment
Cutter decks are warranted against cracking for a period of three (3) years. (parts and labor 1st and 2nd year; parts only 3rd year.) The repair or replacement of the cutter deck will be at the option of Scag Power Equipment. We reserve the right to request compo- nents for evaluation. - Page 58 © 2013 Scag Power Equipment Division of Metalcraft of Mayville, Inc.
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